formbook | ae438370eda70ba48a763c526e61b068e16d11cbd00e9cb504d6f1eeb7442d22

General

Target

benzway.exe
Size

686KB
MD5

b299b28f77a9de1c0f5bb30cf8522aa2
SHA1

ae5ec84f56c65239862745ef217d6b883f0375d6
SHA256

ae438370eda70ba48a763c526e61b068e16d11cbd00e9cb504d6f1eeb7442d22
SHA512

2180b191e4a5bf82443c85e74f68bf63ea6a821ac26813c46e50acf4fda5cdbb6303f1f13510c18e0081ac3ffcf563857c76ce05fffafcde3a6d763373d007ec

Score

10^/10

persistence spyware trojan stealer formbook

Malware Config

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Drops file in Program Files directory 1 IoCs

Processes:

raserver.exe

description ioc process

File opened for modification C:\Program Files (x86)\Wfjop4pm\xteluftt.exe raserver.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Wfjop4pm\xteluftt.exe	raserver.exe

Suspicious behavior: EnumeratesProcesses 58 IoCs

Processes:

benzway.exebenzway.exeraserver.exe

pid	process
384	benzway.exe
384	benzway.exe
3112	benzway.exe
3112	benzway.exe
3112	benzway.exe
3112	benzway.exe
3112	benzway.exe
3112	benzway.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe
3836	raserver.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

benzway.exeExplorer.EXEraserver.exe

description	pid	process	target process
PID 384 wrote to memory of 3112	384	benzway.exe	benzway.exe
PID 384 wrote to memory of 3112	384	benzway.exe	benzway.exe
PID 384 wrote to memory of 3112	384	benzway.exe	benzway.exe
PID 2992 wrote to memory of 3836	2992	Explorer.EXE	raserver.exe
PID 2992 wrote to memory of 3836	2992	Explorer.EXE	raserver.exe
PID 2992 wrote to memory of 3836	2992	Explorer.EXE	raserver.exe
PID 3836 wrote to memory of 3828	3836	raserver.exe	cmd.exe
PID 3836 wrote to memory of 3828	3836	raserver.exe	cmd.exe
PID 3836 wrote to memory of 3828	3836	raserver.exe	cmd.exe
PID 3836 wrote to memory of 1836	3836	raserver.exe	cmd.exe
PID 3836 wrote to memory of 1836	3836	raserver.exe	cmd.exe
PID 3836 wrote to memory of 1836	3836	raserver.exe	cmd.exe
PID 3836 wrote to memory of 3916	3836	raserver.exe	Firefox.exe
PID 3836 wrote to memory of 3916	3836	raserver.exe	Firefox.exe
PID 3836 wrote to memory of 3916	3836	raserver.exe	Firefox.exe

Suspicious behavior: MapViewOfSection 9 IoCs

Processes:

benzway.exebenzway.exeraserver.exe

pid process

384 benzway.exe
3112 benzway.exe
3112 benzway.exe
3112 benzway.exe
3112 benzway.exe
3836 raserver.exe
3836 raserver.exe
3836 raserver.exe
3836 raserver.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

benzway.exebenzway.exeraserver.exe

description	pid	process	target process
PID 384 set thread context of 3112	384	benzway.exe	benzway.exe
PID 3112 set thread context of 2992	3112	benzway.exe	Explorer.EXE
PID 3112 set thread context of 2992	3112	benzway.exe	Explorer.EXE
PID 3836 set thread context of 2992	3836	raserver.exe	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 12 IoCs

Processes:

benzway.exeraserver.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	3112	benzway.exe
Token: SeDebugPrivilege	3836	raserver.exe
Token: SeShutdownPrivilege	2992	Explorer.EXE
Token: SeCreatePagefilePrivilege	2992	Explorer.EXE
Token: SeShutdownPrivilege	2992	Explorer.EXE
Token: SeCreatePagefilePrivilege	2992	Explorer.EXE
Token: SeShutdownPrivilege	2992	Explorer.EXE
Token: SeCreatePagefilePrivilege	2992	Explorer.EXE
Token: SeShutdownPrivilege	2992	Explorer.EXE
Token: SeCreatePagefilePrivilege	2992	Explorer.EXE
Token: SeShutdownPrivilege	2992	Explorer.EXE
Token: SeCreatePagefilePrivilege	2992	Explorer.EXE

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

raserver.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer raserver.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	raserver.exe

Adds Run entry to policy 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\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	raserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\ZLM03N28ONO = "C:\\Program Files (x86)\\Wfjop4pm\\xteluftt.exe"	raserver.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-1-5-21-2066881839-3229799743-3576549721-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	raserver.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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of AdjustPrivilegeToken
PID:2992

C:\Users\Admin\AppData\Local\Temp\benzway.exe
"C:\Users\Admin\AppData\Local\Temp\benzway.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetThreadContext
PID:384

C:\Users\Admin\AppData\Local\Temp\benzway.exe
"C:\Users\Admin\AppData\Local\Temp\benzway.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
PID:3112

C:\Windows\SysWOW64\raserver.exe
"C:\Windows\SysWOW64\raserver.exe"
2⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- System policy modification
- Adds Run entry to policy start application
- Modifies Internet Explorer settings
PID:3836

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\benzway.exe"
3⤵
PID:3828

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:1836

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:3916

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

3

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\DB1

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C:\Users\Admin\AppData\Roaming\J4PBC1UW\J4Plogim.jpeg

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C:\Users\Admin\AppData\Roaming\J4PBC1UW\J4Plogrf.ini

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C:\Users\Admin\AppData\Roaming\J4PBC1UW\J4Plogrg.ini

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C:\Users\Admin\AppData\Roaming\J4PBC1UW\J4Plogri.ini

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C:\Users\Admin\AppData\Roaming\J4PBC1UW\J4Plogrv.ini

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memory/1836-8-0x0000000000000000-mapping.dmp

Download
memory/2992-7-0x00000000024A0000-0x0000000002594000-memory.dmp

Filesize
976KB

Download
memory/3112-1-0x000000000041E2E0-mapping.dmp

Download
memory/3112-0-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/3828-5-0x0000000000000000-mapping.dmp

Download
memory/3836-10-0x00000000066A0000-0x00000000067B8000-memory.dmp

Filesize
1.1MB

Download
memory/3836-6-0x0000000005AC0000-0x0000000005C4D000-memory.dmp

Filesize
1.6MB

Download
memory/3836-4-0x00000000012E0000-0x00000000012FF000-memory.dmp

Filesize
124KB

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memory/3836-3-0x00000000012E0000-0x00000000012FF000-memory.dmp

Filesize
124KB

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memory/3836-2-0x0000000000000000-mapping.dmp

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memory/3916-11-0x0000000000000000-mapping.dmp

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memory/3916-12-0x00007FF770230000-0x00007FF7702C3000-memory.dmp

Filesize
588KB

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memory/3916-13-0x00007FF770230000-0x00007FF7702C3000-memory.dmp

Filesize
588KB

Download
memory/3916-14-0x00007FF770230000-0x00007FF7702C3000-memory.dmp

Filesize
588KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads