formbook | 40fc68d7efeb6585b14073cec45be4b4d514a97beb1d23f5bc54610c56a9aab6

General

Target

conferma SWIFT copia pdf.exe
Size

684KB
MD5

8371b3f4f53c2f7d2ac7fbc66719660b
SHA1

762d5507ae4c64ae0dc11098ea1f1ce5a5d8d28d
SHA256

a3da5c70fbe1fabaaec65ce52c8e76384e94a5937e9fd7e8515ba8a1a048b255
SHA512

b54474caee9cbed9910156e35a8b6b0ee6723971777e2c010d734637e42f104562b57609b20aadee66591d8d97f165d848260262c8e0d3118b3e44efbdf9ebe3

Score

10^/10

formbook n7ak rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

n7ak

C2

http://www.kmresults.com/n7ak/

Decoy

modischoolcbse.com

theneverwinter.com

rszkjx-vps-hosting.website

fnihil.com

1pbet.com

nnowzscorrez.com

uaotgvjl.icu

starmapsqatar.com

ekisilani.com

extradeepsheets.com

jam-nins.com

buranly.com

orixentertainment.com

rawtech.energy

myol.guru

utex.club

jiapie.com

wowig.store

wweidlyyl.com

systaskautomation.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: ET MALWARE FormBook CnC Checkin (GET)
suricata

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3932-117-0x0000000000000000-mapping.dmp	formbook
behavioral2/memory/3932-119-0x0000000010410000-0x000000001043E000-memory.dmp	formbook
behavioral2/memory/3180-125-0x00000000004C0000-0x00000000004EE000-memory.dmp	formbook

Suspicious use of SetThreadContext 2 IoCs

Processes:

logagent.exechkdsk.exe

description	pid	process	target process
PID 3932 set thread context of 2964	3932	logagent.exe	Explorer.EXE
PID 3180 set thread context of 2964	3180	chkdsk.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.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-1-5-21-2559286294-2439613352-4032193287-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 46 IoCs

Processes:

logagent.exechkdsk.exe

pid	process
3932	logagent.exe
3932	logagent.exe
3932	logagent.exe
3932	logagent.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe
3180	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2964 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

logagent.exechkdsk.exe

pid process

3932 logagent.exe
3932 logagent.exe
3932 logagent.exe
3180 chkdsk.exe
3180 chkdsk.exe

pid	process
2964	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 16 IoCs

Processes:

logagent.exechkdsk.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	3932	logagent.exe
Token: SeDebugPrivilege	3180	chkdsk.exe
Token: SeShutdownPrivilege	2964	Explorer.EXE
Token: SeCreatePagefilePrivilege	2964	Explorer.EXE
Token: SeShutdownPrivilege	2964	Explorer.EXE
Token: SeCreatePagefilePrivilege	2964	Explorer.EXE
Token: SeShutdownPrivilege	2964	Explorer.EXE
Token: SeCreatePagefilePrivilege	2964	Explorer.EXE
Token: SeShutdownPrivilege	2964	Explorer.EXE
Token: SeCreatePagefilePrivilege	2964	Explorer.EXE
Token: SeShutdownPrivilege	2964	Explorer.EXE
Token: SeCreatePagefilePrivilege	2964	Explorer.EXE
Token: SeShutdownPrivilege	2964	Explorer.EXE
Token: SeCreatePagefilePrivilege	2964	Explorer.EXE
Token: SeShutdownPrivilege	2964	Explorer.EXE
Token: SeCreatePagefilePrivilege	2964	Explorer.EXE

Suspicious use of FindShellTrayWindow 8 IoCs

Processes:

Explorer.EXE

pid process

2964 Explorer.EXE
2964 Explorer.EXE
2964 Explorer.EXE
2964 Explorer.EXE
2964 Explorer.EXE
2964 Explorer.EXE
2964 Explorer.EXE
2964 Explorer.EXE

pid	process
2964	Explorer.EXE
2964	Explorer.EXE
2964	Explorer.EXE
2964	Explorer.EXE
2964	Explorer.EXE
2964	Explorer.EXE
2964	Explorer.EXE
2964	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

conferma SWIFT copia pdf.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 3992 wrote to memory of 3932	3992	conferma SWIFT copia pdf.exe	logagent.exe
PID 3992 wrote to memory of 3932	3992	conferma SWIFT copia pdf.exe	logagent.exe
PID 3992 wrote to memory of 3932	3992	conferma SWIFT copia pdf.exe	logagent.exe
PID 3992 wrote to memory of 3932	3992	conferma SWIFT copia pdf.exe	logagent.exe
PID 3992 wrote to memory of 3932	3992	conferma SWIFT copia pdf.exe	logagent.exe
PID 3992 wrote to memory of 3932	3992	conferma SWIFT copia pdf.exe	logagent.exe
PID 2964 wrote to memory of 3180	2964	Explorer.EXE	chkdsk.exe
PID 2964 wrote to memory of 3180	2964	Explorer.EXE	chkdsk.exe
PID 2964 wrote to memory of 3180	2964	Explorer.EXE	chkdsk.exe
PID 3180 wrote to memory of 3432	3180	chkdsk.exe	cmd.exe
PID 3180 wrote to memory of 3432	3180	chkdsk.exe	cmd.exe
PID 3180 wrote to memory of 3432	3180	chkdsk.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 FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2964

C:\Users\Admin\AppData\Local\Temp\conferma SWIFT copia pdf.exe
"C:\Users\Admin\AppData\Local\Temp\conferma SWIFT copia pdf.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3992

C:\Windows\SysWOW64\logagent.exe
C:\Windows\System32\logagent.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3932

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3180

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\logagent.exe"
3⤵
PID:3432

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/2964-122-0x00000000004D0000-0x00000000005CF000-memory.dmp

Filesize
1020KB

Download
memory/2964-129-0x0000000002480000-0x0000000002533000-memory.dmp

Filesize
716KB

Download
memory/3180-124-0x0000000000B90000-0x0000000000B9A000-memory.dmp

Filesize
40KB

Download
memory/3180-123-0x0000000000000000-mapping.dmp

Download
memory/3180-125-0x00000000004C0000-0x00000000004EE000-memory.dmp

Filesize
184KB

Download
memory/3180-127-0x0000000004BA0000-0x0000000004EC0000-memory.dmp

Filesize
3.1MB

Download
memory/3180-128-0x0000000000890000-0x0000000000923000-memory.dmp

Filesize
588KB

Download
memory/3432-126-0x0000000000000000-mapping.dmp

Download
memory/3932-118-0x0000000000C00000-0x0000000000C01000-memory.dmp

Filesize
4KB

Download
memory/3932-120-0x0000000004C60000-0x0000000004F80000-memory.dmp

Filesize
3.1MB

Download
memory/3932-121-0x0000000001020000-0x0000000001034000-memory.dmp

Filesize
80KB

Download
memory/3932-119-0x0000000010410000-0x000000001043E000-memory.dmp

Filesize
184KB

Download
memory/3932-117-0x0000000000000000-mapping.dmp

Download
memory/3992-115-0x00000000005A0000-0x00000000005A1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads