formbook | 71cb97b67ebcc50a0bef217b3ca9591cfa49f6b8c8d11ee9952c2cde0b7b6a51

General

Target

PO91206762.exe
Size

194KB
MD5

54c6e68d889239ef978e4221f8add60f
SHA1

500f8852aa4cf26eb57d544fa3017bbab75aafce
SHA256

71cb97b67ebcc50a0bef217b3ca9591cfa49f6b8c8d11ee9952c2cde0b7b6a51
SHA512

09d0bc694eababc0de157884383fff81c07b5c576bfcbfdf763b41b8a96a845b4fc29b04ccd0b82e70de085696f86afd79b94f2be210b545e0a91d0ffd793a7e

Score

10^/10

formbook rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

C2

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
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/1240-116-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/1240-118-0x0000000000570000-0x00000000006BA000-memory.dmp	formbook
behavioral2/memory/3528-124-0x00000000001F0000-0x000000000021E000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

Processes:

PO91206762.exePO91206762.exewscript.exe

description	pid	process	target process
PID 3908 set thread context of 1240	3908	PO91206762.exe	PO91206762.exe
PID 1240 set thread context of 2996	1240	PO91206762.exe	Explorer.EXE
PID 1240 set thread context of 2996	1240	PO91206762.exe	Explorer.EXE
PID 3528 set thread context of 2996	3528	wscript.exe	Explorer.EXE

Modifies registry class 2 IoCs

Processes:

Explorer.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 60 IoCs

Processes:

PO91206762.exewscript.exe

pid	process
1240	PO91206762.exe
1240	PO91206762.exe
1240	PO91206762.exe
1240	PO91206762.exe
1240	PO91206762.exe
1240	PO91206762.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe
3528	wscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2996 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

PO91206762.exePO91206762.exewscript.exe

pid process

3908 PO91206762.exe
1240 PO91206762.exe
1240 PO91206762.exe
1240 PO91206762.exe
1240 PO91206762.exe
3528 wscript.exe
3528 wscript.exe

pid	process
2996	Explorer.EXE

pid	process
3908	PO91206762.exe
1240	PO91206762.exe
1240	PO91206762.exe
1240	PO91206762.exe
1240	PO91206762.exe
3528	wscript.exe
3528	wscript.exe

Suspicious use of AdjustPrivilegeToken 26 IoCs

Processes:

PO91206762.exeExplorer.EXEwscript.exe

description	pid	process
Token: SeDebugPrivilege	1240	PO91206762.exe
Token: SeShutdownPrivilege	2996	Explorer.EXE
Token: SeCreatePagefilePrivilege	2996	Explorer.EXE
Token: SeShutdownPrivilege	2996	Explorer.EXE
Token: SeCreatePagefilePrivilege	2996	Explorer.EXE
Token: SeShutdownPrivilege	2996	Explorer.EXE
Token: SeCreatePagefilePrivilege	2996	Explorer.EXE
Token: SeShutdownPrivilege	2996	Explorer.EXE
Token: SeCreatePagefilePrivilege	2996	Explorer.EXE
Token: SeShutdownPrivilege	2996	Explorer.EXE
Token: SeCreatePagefilePrivilege	2996	Explorer.EXE
Token: SeShutdownPrivilege	2996	Explorer.EXE
Token: SeCreatePagefilePrivilege	2996	Explorer.EXE
Token: SeShutdownPrivilege	2996	Explorer.EXE
Token: SeCreatePagefilePrivilege	2996	Explorer.EXE
Token: SeShutdownPrivilege	2996	Explorer.EXE
Token: SeCreatePagefilePrivilege	2996	Explorer.EXE
Token: SeShutdownPrivilege	2996	Explorer.EXE
Token: SeCreatePagefilePrivilege	2996	Explorer.EXE
Token: SeShutdownPrivilege	2996	Explorer.EXE
Token: SeCreatePagefilePrivilege	2996	Explorer.EXE
Token: SeShutdownPrivilege	2996	Explorer.EXE
Token: SeCreatePagefilePrivilege	2996	Explorer.EXE
Token: SeShutdownPrivilege	2996	Explorer.EXE
Token: SeCreatePagefilePrivilege	2996	Explorer.EXE
Token: SeDebugPrivilege	3528	wscript.exe

Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

2996 Explorer.EXE

pid	process
2996	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

PO91206762.exeExplorer.EXEwscript.exe

description	pid	process	target process
PID 3908 wrote to memory of 1240	3908	PO91206762.exe	PO91206762.exe
PID 3908 wrote to memory of 1240	3908	PO91206762.exe	PO91206762.exe
PID 3908 wrote to memory of 1240	3908	PO91206762.exe	PO91206762.exe
PID 3908 wrote to memory of 1240	3908	PO91206762.exe	PO91206762.exe
PID 2996 wrote to memory of 3528	2996	Explorer.EXE	wscript.exe
PID 2996 wrote to memory of 3528	2996	Explorer.EXE	wscript.exe
PID 2996 wrote to memory of 3528	2996	Explorer.EXE	wscript.exe
PID 3528 wrote to memory of 3292	3528	wscript.exe	cmd.exe
PID 3528 wrote to memory of 3292	3528	wscript.exe	cmd.exe
PID 3528 wrote to memory of 3292	3528	wscript.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2996

C:\Users\Admin\AppData\Local\Temp\PO91206762.exe
"C:\Users\Admin\AppData\Local\Temp\PO91206762.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3908

C:\Users\Admin\AppData\Local\Temp\PO91206762.exe
"C:\Users\Admin\AppData\Local\Temp\PO91206762.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1240

C:\Windows\SysWOW64\wscript.exe
"C:\Windows\SysWOW64\wscript.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3528

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\PO91206762.exe"
3⤵
PID:3292

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1240-114-0x000000000041EAF0-mapping.dmp

Download
memory/1240-120-0x0000000002750000-0x0000000002764000-memory.dmp

Filesize
80KB

Download
memory/1240-116-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1240-117-0x0000000000A20000-0x0000000000D40000-memory.dmp

Filesize
3.1MB

Download
memory/1240-118-0x0000000000570000-0x00000000006BA000-memory.dmp

Filesize
1.3MB

Download
memory/2996-121-0x0000000004D10000-0x0000000004EB2000-memory.dmp

Filesize
1.6MB

Download
memory/2996-119-0x0000000002740000-0x00000000027F1000-memory.dmp

Filesize
708KB

Download
memory/2996-128-0x0000000004EC0000-0x0000000004F9C000-memory.dmp

Filesize
880KB

Download
memory/3292-126-0x0000000000000000-mapping.dmp

Download
memory/3528-122-0x0000000000000000-mapping.dmp

Download
memory/3528-123-0x0000000000300000-0x0000000000327000-memory.dmp

Filesize
156KB

Download
memory/3528-124-0x00000000001F0000-0x000000000021E000-memory.dmp

Filesize
184KB

Download
memory/3528-125-0x00000000045A0000-0x00000000048C0000-memory.dmp

Filesize
3.1MB

Download
memory/3528-127-0x0000000004370000-0x0000000004403000-memory.dmp

Filesize
588KB

Download
memory/3908-115-0x0000000000410000-0x000000000055A000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads