formbook | 916badee0304605bfd8e43c11179fb975d094226a432eeb28af55dc9be426c24

General

Target

PURCHASE ORDER.exe
Size

378KB
MD5

c284f72d5a76d0ff86ed2c35c74ebe89
SHA1

ceeae846adc4e2f121f601c7d3cf13a1b9ebff33
SHA256

916badee0304605bfd8e43c11179fb975d094226a432eeb28af55dc9be426c24
SHA512

240b5096045ba660bddf27f0ff26031a99b5ecf005094ad91df019ad7b832a64102b009a7d1187bd946951912730108469c36b37a2925596a641a7becf2d9469

Score

10^/10

formbook evasion persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.mansiobok3.info/ch62/

Decoy

priceground.com

protmaxvigilancia.com

allyboom.com

calimerkids.com

behproject.com

everxs.com

peertopeervaluetrading.com

asosdiscountscode.com

supersoloblitz.com

allindiaexpo.com

mountainpunks.com

lawberrys.com

myinsuranceclaimconsultants.com

autoberles.center

xn--circuitomioulla-7qb.com

beheartratemonitoringkey.live

bigcitypillows.com

tresriosresortoffers.com

ratmanrodentremoval.com

fujiaseed.com

Signatures

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

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3960-3-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral2/memory/3960-4-0x000000000041B6D0-mapping.dmp	formbook
behavioral2/memory/3860-6-0x0000000000000000-mapping.dmp	formbook

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

PURCHASE ORDER.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	PURCHASE ORDER.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	PURCHASE ORDER.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cmstp.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	cmstp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\J0MPF6-XPXG = "C:\\Program Files (x86)\\Xtrl\\update4ho4ann0.exe"	cmstp.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

PURCHASE ORDER.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	PURCHASE ORDER.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	PURCHASE ORDER.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

PURCHASE ORDER.exePURCHASE ORDER.execmstp.exe

description	pid	process	target process
PID 1316 set thread context of 3960	1316	PURCHASE ORDER.exe	PURCHASE ORDER.exe
PID 3960 set thread context of 2352	3960	PURCHASE ORDER.exe	Explorer.EXE
PID 3860 set thread context of 2352	3860	cmstp.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

cmstp.exe

description ioc process

File opened for modification C:\Program Files (x86)\Xtrl\update4ho4ann0.exe cmstp.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Xtrl\update4ho4ann0.exe	cmstp.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cmstp.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-3341490333-719741536-2920803124-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmstp.exe

Suspicious behavior: EnumeratesProcesses 46 IoCs

Processes:

PURCHASE ORDER.execmstp.exe

pid	process
3960	PURCHASE ORDER.exe
3960	PURCHASE ORDER.exe
3960	PURCHASE ORDER.exe
3960	PURCHASE ORDER.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe
3860	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

PURCHASE ORDER.execmstp.exe

pid process

3960 PURCHASE ORDER.exe
3960 PURCHASE ORDER.exe
3960 PURCHASE ORDER.exe
3860 cmstp.exe
3860 cmstp.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

PURCHASE ORDER.exePURCHASE ORDER.execmstp.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1316	PURCHASE ORDER.exe
Token: SeDebugPrivilege	3960	PURCHASE ORDER.exe
Token: SeDebugPrivilege	3860	cmstp.exe
Token: SeShutdownPrivilege	2352	Explorer.EXE
Token: SeCreatePagefilePrivilege	2352	Explorer.EXE
Token: SeShutdownPrivilege	2352	Explorer.EXE
Token: SeCreatePagefilePrivilege	2352	Explorer.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

PURCHASE ORDER.exe

pid process

1316 PURCHASE ORDER.exe
1316 PURCHASE ORDER.exe
Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

2352 Explorer.EXE

pid	process
1316	PURCHASE ORDER.exe
1316	PURCHASE ORDER.exe

pid	process
2352	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

PURCHASE ORDER.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 1316 wrote to memory of 3960	1316	PURCHASE ORDER.exe	PURCHASE ORDER.exe
PID 1316 wrote to memory of 3960	1316	PURCHASE ORDER.exe	PURCHASE ORDER.exe
PID 1316 wrote to memory of 3960	1316	PURCHASE ORDER.exe	PURCHASE ORDER.exe
PID 1316 wrote to memory of 3960	1316	PURCHASE ORDER.exe	PURCHASE ORDER.exe
PID 1316 wrote to memory of 3960	1316	PURCHASE ORDER.exe	PURCHASE ORDER.exe
PID 1316 wrote to memory of 3960	1316	PURCHASE ORDER.exe	PURCHASE ORDER.exe
PID 2352 wrote to memory of 3860	2352	Explorer.EXE	cmstp.exe
PID 2352 wrote to memory of 3860	2352	Explorer.EXE	cmstp.exe
PID 2352 wrote to memory of 3860	2352	Explorer.EXE	cmstp.exe
PID 3860 wrote to memory of 792	3860	cmstp.exe	cmd.exe
PID 3860 wrote to memory of 792	3860	cmstp.exe	cmd.exe
PID 3860 wrote to memory of 792	3860	cmstp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2352

C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
2⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1316

C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3960

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.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:3860

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
3⤵
PID:792

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Modify Registry

2

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

2

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\9L5A8AD1\9L5logim.jpeg
MD5
9ee605354ae0bae20a89baa5796dbab2

SHA1
3767c14c3a3add02dcc6d9c60a63d80bc480c6bc

SHA256
db45c23743d78f05a7ae07a5fb20730f18ef4d1a86a156d85112142aaa9c73be

SHA512
e8679a50c75f7f74a6c830375752186f0495bd151cb9cd7fa7ac49a174566f98cd66eb796b52b88759fe484fb5e282fc6f6cca9d127ccdea8e07b03af72d2f2f

Download Submit
C:\Users\Admin\AppData\Roaming\9L5A8AD1\9L5logri.ini
MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\9L5A8AD1\9L5logrv.ini
MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/792-9-0x0000000000000000-mapping.dmp

Download
memory/3860-6-0x0000000000000000-mapping.dmp

Download
memory/3860-7-0x0000000000D00000-0x0000000000D16000-memory.dmp

Filesize
88KB

Download
memory/3860-8-0x0000000000D00000-0x0000000000D16000-memory.dmp

Filesize
88KB

Download
memory/3860-10-0x0000000005460000-0x00000000055EA000-memory.dmp

Filesize
1.5MB

Download
memory/3960-3-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/3960-4-0x000000000041B6D0-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads