formbook | a192572433f8f1a41f0035e040f0f455608b6eb9695cbb87c9734f3a4bf7d4cc

General

Target

imágenes de productos pdf.exe
Size

973KB
MD5

1e01b5e7d7e52dc849c271f8327fabd6
SHA1

efa560d817c867c38c4a75519830abacb4be2812
SHA256

a192572433f8f1a41f0035e040f0f455608b6eb9695cbb87c9734f3a4bf7d4cc
SHA512

6d7e41f576f88d6a2c3ab951db921def360cd8fe2db8dc542edfbe93a6f8ab10d6ba96538239ac158bdb43f2b14bfc562da6870fd85297c3690b40c5b5b3658e

Score

10^/10

formbook n7ak persistence 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
behavioral1/memory/1680-60-0x0000000000000000-mapping.dmp	formbook
behavioral1/memory/1680-63-0x0000000072480000-0x00000000724AE000-memory.dmp	formbook
behavioral1/memory/1384-69-0x0000000000080000-0x00000000000AE000-memory.dmp	formbook

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

imágenes de productos pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\Run\Gsdjit = "C:\\Users\\Public\\tijdsG.url"	imágenes de productos pdf.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

secinit.execmmon32.exe

description	pid	process	target process
PID 1680 set thread context of 1244	1680	secinit.exe	Explorer.EXE
PID 1384 set thread context of 1244	1384	cmmon32.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 27 IoCs

Processes:

secinit.execmmon32.exe

pid	process
1680	secinit.exe
1680	secinit.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe
1384	cmmon32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

secinit.execmmon32.exe

pid process

1680 secinit.exe
1680 secinit.exe
1680 secinit.exe
1384 cmmon32.exe
1384 cmmon32.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

secinit.execmmon32.exe

description pid process

Token: SeDebugPrivilege 1680 secinit.exe
Token: SeDebugPrivilege 1384 cmmon32.exe

description	pid	process
Token: SeDebugPrivilege	1680	secinit.exe
Token: SeDebugPrivilege	1384	cmmon32.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

imágenes de productos pdf.exeExplorer.EXEcmmon32.exe

description	pid	process	target process
PID 268 wrote to memory of 1680	268	imágenes de productos pdf.exe	secinit.exe
PID 268 wrote to memory of 1680	268	imágenes de productos pdf.exe	secinit.exe
PID 268 wrote to memory of 1680	268	imágenes de productos pdf.exe	secinit.exe
PID 268 wrote to memory of 1680	268	imágenes de productos pdf.exe	secinit.exe
PID 268 wrote to memory of 1680	268	imágenes de productos pdf.exe	secinit.exe
PID 268 wrote to memory of 1680	268	imágenes de productos pdf.exe	secinit.exe
PID 268 wrote to memory of 1680	268	imágenes de productos pdf.exe	secinit.exe
PID 1244 wrote to memory of 1384	1244	Explorer.EXE	cmmon32.exe
PID 1244 wrote to memory of 1384	1244	Explorer.EXE	cmmon32.exe
PID 1244 wrote to memory of 1384	1244	Explorer.EXE	cmmon32.exe
PID 1244 wrote to memory of 1384	1244	Explorer.EXE	cmmon32.exe
PID 1384 wrote to memory of 988	1384	cmmon32.exe	cmd.exe
PID 1384 wrote to memory of 988	1384	cmmon32.exe	cmd.exe
PID 1384 wrote to memory of 988	1384	cmmon32.exe	cmd.exe
PID 1384 wrote to memory of 988	1384	cmmon32.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1244

C:\Users\Admin\AppData\Local\Temp\imágenes de productos pdf.exe
"C:\Users\Admin\AppData\Local\Temp\imágenes de productos pdf.exe"
2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:268

C:\Windows\SysWOW64\secinit.exe
C:\Windows\System32\secinit.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1680

C:\Windows\SysWOW64\cmmon32.exe
"C:\Windows\SysWOW64\cmmon32.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1384

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\secinit.exe"
3⤵
PID:988

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

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/268-55-0x0000000000241000-0x0000000000255000-memory.dmp

Filesize
80KB

Download
memory/268-56-0x0000000075661000-0x0000000075663000-memory.dmp

Filesize
8KB

Download
memory/268-54-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/988-71-0x0000000000000000-mapping.dmp

Download
memory/1244-73-0x0000000006010000-0x00000000060F9000-memory.dmp

Filesize
932KB

Download
memory/1244-66-0x0000000006340000-0x00000000064BE000-memory.dmp

Filesize
1.5MB

Download
memory/1384-67-0x0000000000000000-mapping.dmp

Download
memory/1384-72-0x0000000000580000-0x0000000000613000-memory.dmp

Filesize
588KB

Download
memory/1384-69-0x0000000000080000-0x00000000000AE000-memory.dmp

Filesize
184KB

Download
memory/1384-70-0x0000000002090000-0x0000000002393000-memory.dmp

Filesize
3.0MB

Download
memory/1384-68-0x0000000000390000-0x000000000039D000-memory.dmp

Filesize
52KB

Download
memory/1680-58-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/1680-65-0x00000000001C0000-0x00000000001D4000-memory.dmp

Filesize
80KB

Download
memory/1680-64-0x0000000002260000-0x0000000002563000-memory.dmp

Filesize
3.0MB

Download
memory/1680-63-0x0000000072480000-0x00000000724AE000-memory.dmp

Filesize
184KB

Download
memory/1680-62-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/1680-60-0x0000000000000000-mapping.dmp

Download
memory/1680-57-0x0000000072480000-0x00000000724AE000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads