formbook | 151572bec6e274bad481a8c0736a4888931c086f3fdf890be9811eae7c0c0c36

General

Target

PO#101581.exe
Size

869KB
MD5

95f35b3fb58633c97069fe1bc12f39f5
SHA1

e1ee2cf79953cc0f472c9b3af9fcc389a5bc492d
SHA256

151572bec6e274bad481a8c0736a4888931c086f3fdf890be9811eae7c0c0c36
SHA512

358656d5e219d138a56e25f54b890a98062b5539db4da25685e659276ecfafa68c00ffa83383dac8d35cfe6270eec87da8b306a61a125128869e61ffb934d050

Score

10^/10

formbook xloader ssmm loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

ssmm

Decoy

bhealthybu.com

formasyonlar.com

huddleadvising.com

iroofer.net

pokerisparadise.com

partnrsocial.com

omnixinity.com

sandibet.biz

xxxpool.xyz

mainsuranceagency.com

filipkaarrtofffers.online

txgongsi.com

bonasuplementos.com

sxp89app.space

grandeurjewelryph.com

productsorcerer.com

mrussellhandyman.com

igorstelea.com

cateraevents.com

yashaswistudio.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1280-62-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1280-63-0x000000000041F290-mapping.dmp	xloader
behavioral1/memory/1280-65-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1980-71-0x0000000000080000-0x00000000000AB000-memory.dmp	xloader

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

help.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\GBCPJFP0 = "C:\\Program Files (x86)\\Mv0mtuf\\audiodgcdf.exe"	help.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	help.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

524 cmd.exe

pid	process
524	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

PO#101581.exePO#101581.exehelp.exe

description	pid	process	target process
PID 1056 set thread context of 1280	1056	PO#101581.exe	PO#101581.exe
PID 1280 set thread context of 1220	1280	PO#101581.exe	Explorer.EXE
PID 1980 set thread context of 1220	1980	help.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

help.exe

description ioc process

File opened for modification C:\Program Files (x86)\Mv0mtuf\audiodgcdf.exe help.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Mv0mtuf\audiodgcdf.exe	help.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

help.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1083475884-596052423-1669053738-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	help.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

PO#101581.exehelp.exe

pid	process
1280	PO#101581.exe
1280	PO#101581.exe
1980	help.exe
1980	help.exe
1980	help.exe
1980	help.exe
1980	help.exe
1980	help.exe
1980	help.exe
1980	help.exe
1980	help.exe
1980	help.exe
1980	help.exe
1980	help.exe
1980	help.exe
1980	help.exe
1980	help.exe
1980	help.exe
1980	help.exe
1980	help.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

PO#101581.exehelp.exe

pid process

1280 PO#101581.exe
1280 PO#101581.exe
1280 PO#101581.exe
1980 help.exe
1980 help.exe
1980 help.exe
1980 help.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PO#101581.exehelp.exe

description pid process

Token: SeDebugPrivilege 1280 PO#101581.exe
Token: SeDebugPrivilege 1980 help.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1220 Explorer.EXE
1220 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1220 Explorer.EXE
1220 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1280	PO#101581.exe
Token: SeDebugPrivilege	1980	help.exe

pid	process
1220	Explorer.EXE
1220	Explorer.EXE

pid	process
1220	Explorer.EXE
1220	Explorer.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

PO#101581.exeExplorer.EXEhelp.exe

description	pid	process	target process
PID 1056 wrote to memory of 1280	1056	PO#101581.exe	PO#101581.exe
PID 1056 wrote to memory of 1280	1056	PO#101581.exe	PO#101581.exe
PID 1056 wrote to memory of 1280	1056	PO#101581.exe	PO#101581.exe
PID 1056 wrote to memory of 1280	1056	PO#101581.exe	PO#101581.exe
PID 1056 wrote to memory of 1280	1056	PO#101581.exe	PO#101581.exe
PID 1056 wrote to memory of 1280	1056	PO#101581.exe	PO#101581.exe
PID 1056 wrote to memory of 1280	1056	PO#101581.exe	PO#101581.exe
PID 1220 wrote to memory of 1980	1220	Explorer.EXE	help.exe
PID 1220 wrote to memory of 1980	1220	Explorer.EXE	help.exe
PID 1220 wrote to memory of 1980	1220	Explorer.EXE	help.exe
PID 1220 wrote to memory of 1980	1220	Explorer.EXE	help.exe
PID 1980 wrote to memory of 524	1980	help.exe	cmd.exe
PID 1980 wrote to memory of 524	1980	help.exe	cmd.exe
PID 1980 wrote to memory of 524	1980	help.exe	cmd.exe
PID 1980 wrote to memory of 524	1980	help.exe	cmd.exe
PID 1980 wrote to memory of 864	1980	help.exe	Firefox.exe
PID 1980 wrote to memory of 864	1980	help.exe	Firefox.exe
PID 1980 wrote to memory of 864	1980	help.exe	Firefox.exe
PID 1980 wrote to memory of 864	1980	help.exe	Firefox.exe
PID 1980 wrote to memory of 864	1980	help.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1220

C:\Users\Admin\AppData\Local\Temp\PO#101581.exe
"C:\Users\Admin\AppData\Local\Temp\PO#101581.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1056

C:\Users\Admin\AppData\Local\Temp\PO#101581.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1280

C:\Windows\SysWOW64\help.exe
"C:\Windows\SysWOW64\help.exe"
2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1980

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\PO#101581.exe"
3⤵
- Deletes itself
PID:524

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:864

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/524-72-0x0000000000000000-mapping.dmp

Download
memory/1056-54-0x0000000000A50000-0x0000000000B30000-memory.dmp

Filesize
896KB

Download
memory/1056-55-0x00000000764C1000-0x00000000764C3000-memory.dmp

Filesize
8KB

Download
memory/1056-56-0x00000000003E0000-0x00000000003EA000-memory.dmp

Filesize
40KB

Download
memory/1056-57-0x00000000052A0000-0x0000000005320000-memory.dmp

Filesize
512KB

Download
memory/1056-58-0x00000000004E0000-0x0000000000512000-memory.dmp

Filesize
200KB

Download
memory/1220-75-0x0000000004C20000-0x0000000004D24000-memory.dmp

Filesize
1.0MB

Download
memory/1220-68-0x0000000004020000-0x00000000040E3000-memory.dmp

Filesize
780KB

Download
memory/1280-66-0x0000000000B30000-0x0000000000E33000-memory.dmp

Filesize
3.0MB

Download
memory/1280-65-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1280-63-0x000000000041F290-mapping.dmp

Download
memory/1280-67-0x0000000000200000-0x0000000000211000-memory.dmp

Filesize
68KB

Download
memory/1280-62-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1280-60-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1280-59-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1980-69-0x0000000000000000-mapping.dmp

Download
memory/1980-70-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/1980-71-0x0000000000080000-0x00000000000AB000-memory.dmp

Filesize
172KB

Download
memory/1980-73-0x0000000000880000-0x0000000000B83000-memory.dmp

Filesize
3.0MB

Download
memory/1980-74-0x00000000006F0000-0x0000000000780000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads