formbook | cd4ee025ad3406b7e572952d42465eee19649cef6c0d3a6acbb0e972096988f4

General

Target

DELIVERY DOCUMENTS.exe
Size

707KB
MD5

427ef5f4e1143ad34c33b26dc4681661
SHA1

673fb1a58e4707ad783d03ca97b3fbd8b4cad73a
SHA256

cd4ee025ad3406b7e572952d42465eee19649cef6c0d3a6acbb0e972096988f4
SHA512

b225afbb07853516f1b741e833e1a63026c0dc5adbb0c3fcfb48f8c6681bc770558499df3d3f5c17df45395dedc3624a1e8fa6498395ac20a82f44e27a61dfbb

Score

10^/10

formbook xloader zqzw loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

zqzw

Decoy

laurentmathieu.com

nohohonndana.com

hhmc.info

shophallows.com

blazebunk.com

goodbridge.xyz

flakycloud.com

bakermckenziegroups.com

formation-adistance.com

lovingearthbotanicals.com

tbrservice.plus

heritagehousehotels.com

drwbuildersco.com

lacsghb.com

wain3x.com

dadreview.club

continiutycp.com

cockgirls.com

48mpt.xyz

033skz.xyz

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 2 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/288-62-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/436-70-0x00000000000C0000-0x00000000000E9000-memory.dmp	xloader

Executes dropped EXE 2 IoCs

Processes:

igfxgnu.exeigfxgnu.exe

pid process

1592 igfxgnu.exe
872 igfxgnu.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1060 cmd.exe

pid	process
1592	igfxgnu.exe
872	igfxgnu.exe

pid	process
1060	cmd.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

raserver.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	raserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\K6A4ANZXGV = "C:\\Program Files (x86)\\Knlrdi\\igfxgnu.exe"	raserver.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

DELIVERY DOCUMENTS.exeDELIVERY DOCUMENTS.exeraserver.exeigfxgnu.exe

description	pid	process	target process
PID 748 set thread context of 288	748	DELIVERY DOCUMENTS.exe	DELIVERY DOCUMENTS.exe
PID 288 set thread context of 1412	288	DELIVERY DOCUMENTS.exe	Explorer.EXE
PID 436 set thread context of 1412	436	raserver.exe	Explorer.EXE
PID 1592 set thread context of 872	1592	igfxgnu.exe	igfxgnu.exe

Drops file in Program Files directory 2 IoCs

Processes:

raserver.exeExplorer.EXE

description	ioc	process
File opened for modification	C:\Program Files (x86)\Knlrdi\igfxgnu.exe	raserver.exe
File created	C:\Program Files (x86)\Knlrdi\igfxgnu.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

raserver.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-3846991908-3261386348-1409841751-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	raserver.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

DELIVERY DOCUMENTS.exeraserver.exeigfxgnu.exe

pid	process
288	DELIVERY DOCUMENTS.exe
288	DELIVERY DOCUMENTS.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
872	igfxgnu.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe
436	raserver.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1412 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

DELIVERY DOCUMENTS.exeraserver.exe

pid process

288 DELIVERY DOCUMENTS.exe
288 DELIVERY DOCUMENTS.exe
288 DELIVERY DOCUMENTS.exe
436 raserver.exe
436 raserver.exe
436 raserver.exe
436 raserver.exe

pid	process
1412	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 9 IoCs

Processes:

DELIVERY DOCUMENTS.exeraserver.exeigfxgnu.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	288	DELIVERY DOCUMENTS.exe
Token: SeDebugPrivilege	436	raserver.exe
Token: SeDebugPrivilege	872	igfxgnu.exe
Token: SeShutdownPrivilege	1412	Explorer.EXE
Token: SeShutdownPrivilege	1412	Explorer.EXE
Token: SeShutdownPrivilege	1412	Explorer.EXE
Token: SeShutdownPrivilege	1412	Explorer.EXE
Token: SeShutdownPrivilege	1412	Explorer.EXE
Token: SeShutdownPrivilege	1412	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1412 Explorer.EXE
1412 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1412 Explorer.EXE
1412 Explorer.EXE

pid	process
1412	Explorer.EXE
1412	Explorer.EXE

pid	process
1412	Explorer.EXE
1412	Explorer.EXE

Suspicious use of WriteProcessMemory 31 IoCs

Processes:

DELIVERY DOCUMENTS.exeExplorer.EXEraserver.exeigfxgnu.exe

description	pid	process	target process
PID 748 wrote to memory of 288	748	DELIVERY DOCUMENTS.exe	DELIVERY DOCUMENTS.exe
PID 748 wrote to memory of 288	748	DELIVERY DOCUMENTS.exe	DELIVERY DOCUMENTS.exe
PID 748 wrote to memory of 288	748	DELIVERY DOCUMENTS.exe	DELIVERY DOCUMENTS.exe
PID 748 wrote to memory of 288	748	DELIVERY DOCUMENTS.exe	DELIVERY DOCUMENTS.exe
PID 748 wrote to memory of 288	748	DELIVERY DOCUMENTS.exe	DELIVERY DOCUMENTS.exe
PID 748 wrote to memory of 288	748	DELIVERY DOCUMENTS.exe	DELIVERY DOCUMENTS.exe
PID 748 wrote to memory of 288	748	DELIVERY DOCUMENTS.exe	DELIVERY DOCUMENTS.exe
PID 1412 wrote to memory of 436	1412	Explorer.EXE	raserver.exe
PID 1412 wrote to memory of 436	1412	Explorer.EXE	raserver.exe
PID 1412 wrote to memory of 436	1412	Explorer.EXE	raserver.exe
PID 1412 wrote to memory of 436	1412	Explorer.EXE	raserver.exe
PID 436 wrote to memory of 1060	436	raserver.exe	cmd.exe
PID 436 wrote to memory of 1060	436	raserver.exe	cmd.exe
PID 436 wrote to memory of 1060	436	raserver.exe	cmd.exe
PID 436 wrote to memory of 1060	436	raserver.exe	cmd.exe
PID 436 wrote to memory of 1128	436	raserver.exe	Firefox.exe
PID 436 wrote to memory of 1128	436	raserver.exe	Firefox.exe
PID 436 wrote to memory of 1128	436	raserver.exe	Firefox.exe
PID 436 wrote to memory of 1128	436	raserver.exe	Firefox.exe
PID 1412 wrote to memory of 1592	1412	Explorer.EXE	igfxgnu.exe
PID 1412 wrote to memory of 1592	1412	Explorer.EXE	igfxgnu.exe
PID 1412 wrote to memory of 1592	1412	Explorer.EXE	igfxgnu.exe
PID 1412 wrote to memory of 1592	1412	Explorer.EXE	igfxgnu.exe
PID 436 wrote to memory of 1128	436	raserver.exe	Firefox.exe
PID 1592 wrote to memory of 872	1592	igfxgnu.exe	igfxgnu.exe
PID 1592 wrote to memory of 872	1592	igfxgnu.exe	igfxgnu.exe
PID 1592 wrote to memory of 872	1592	igfxgnu.exe	igfxgnu.exe
PID 1592 wrote to memory of 872	1592	igfxgnu.exe	igfxgnu.exe
PID 1592 wrote to memory of 872	1592	igfxgnu.exe	igfxgnu.exe
PID 1592 wrote to memory of 872	1592	igfxgnu.exe	igfxgnu.exe
PID 1592 wrote to memory of 872	1592	igfxgnu.exe	igfxgnu.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1412

C:\Users\Admin\AppData\Local\Temp\DELIVERY DOCUMENTS.exe
"C:\Users\Admin\AppData\Local\Temp\DELIVERY DOCUMENTS.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:748

C:\Users\Admin\AppData\Local\Temp\DELIVERY DOCUMENTS.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:288

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:568

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1668

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:572

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1844

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1400

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1120

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1700

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1524

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1156

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1716

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1940

C:\Windows\SysWOW64\raserver.exe
"C:\Windows\SysWOW64\raserver.exe"
2⤵
- Adds 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:436

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\DELIVERY DOCUMENTS.exe"
3⤵
- Deletes itself
PID:1060

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1128

C:\Program Files (x86)\Knlrdi\igfxgnu.exe
"C:\Program Files (x86)\Knlrdi\igfxgnu.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1592

C:\Program Files (x86)\Knlrdi\igfxgnu.exe
"{path}"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:872

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

C:\Program Files (x86)\Knlrdi\igfxgnu.exe
MD5
427ef5f4e1143ad34c33b26dc4681661

SHA1
673fb1a58e4707ad783d03ca97b3fbd8b4cad73a

SHA256
cd4ee025ad3406b7e572952d42465eee19649cef6c0d3a6acbb0e972096988f4

SHA512
b225afbb07853516f1b741e833e1a63026c0dc5adbb0c3fcfb48f8c6681bc770558499df3d3f5c17df45395dedc3624a1e8fa6498395ac20a82f44e27a61dfbb

Download Submit
C:\Program Files (x86)\Knlrdi\igfxgnu.exe
MD5
427ef5f4e1143ad34c33b26dc4681661

SHA1
673fb1a58e4707ad783d03ca97b3fbd8b4cad73a

SHA256
cd4ee025ad3406b7e572952d42465eee19649cef6c0d3a6acbb0e972096988f4

SHA512
b225afbb07853516f1b741e833e1a63026c0dc5adbb0c3fcfb48f8c6681bc770558499df3d3f5c17df45395dedc3624a1e8fa6498395ac20a82f44e27a61dfbb

Download Submit
C:\Program Files (x86)\Knlrdi\igfxgnu.exe
MD5
427ef5f4e1143ad34c33b26dc4681661

SHA1
673fb1a58e4707ad783d03ca97b3fbd8b4cad73a

SHA256
cd4ee025ad3406b7e572952d42465eee19649cef6c0d3a6acbb0e972096988f4

SHA512
b225afbb07853516f1b741e833e1a63026c0dc5adbb0c3fcfb48f8c6681bc770558499df3d3f5c17df45395dedc3624a1e8fa6498395ac20a82f44e27a61dfbb

Download Submit
memory/288-65-0x000000000041D000-0x000000000041E000-memory.dmp

Filesize
4KB

Download
memory/288-66-0x00000000001D0000-0x00000000001E1000-memory.dmp

Filesize
68KB

Download
memory/288-64-0x0000000000A80000-0x0000000000D83000-memory.dmp

Filesize
3.0MB

Download
memory/288-60-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/288-61-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/288-62-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/436-70-0x00000000000C0000-0x00000000000E9000-memory.dmp

Filesize
164KB

Download
memory/436-68-0x0000000074F01000-0x0000000074F03000-memory.dmp

Filesize
8KB

Download
memory/436-69-0x0000000000310000-0x000000000032C000-memory.dmp

Filesize
112KB

Download
memory/436-71-0x0000000001F80000-0x0000000002283000-memory.dmp

Filesize
3.0MB

Download
memory/436-72-0x0000000001DF0000-0x0000000001E80000-memory.dmp

Filesize
576KB

Download
memory/748-59-0x0000000000650000-0x0000000000680000-memory.dmp

Filesize
192KB

Download
memory/748-58-0x0000000004ED0000-0x0000000004F52000-memory.dmp

Filesize
520KB

Download
memory/748-54-0x0000000000280000-0x0000000000338000-memory.dmp

Filesize
736KB

Download
memory/748-57-0x0000000004E90000-0x0000000004E91000-memory.dmp

Filesize
4KB

Download
memory/748-56-0x0000000000370000-0x000000000037A000-memory.dmp

Filesize
40KB

Download
memory/748-55-0x0000000073AEE000-0x0000000073AEF000-memory.dmp

Filesize
4KB

Download
memory/872-83-0x0000000000910000-0x0000000000C13000-memory.dmp

Filesize
3.0MB

Download
memory/1412-67-0x0000000006D00000-0x0000000006E27000-memory.dmp

Filesize
1.2MB

Download
memory/1412-73-0x00000000049C0000-0x0000000004A53000-memory.dmp

Filesize
588KB

Download
memory/1592-77-0x000000007407E000-0x000000007407F000-memory.dmp

Filesize
4KB

Download
memory/1592-78-0x00000000048A0000-0x00000000048A1000-memory.dmp

Filesize
4KB

Download
memory/1592-76-0x0000000000D50000-0x0000000000E08000-memory.dmp

Filesize
736KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads