formbook | 22542d1aef8c0987be0f91b90e4f70f372cc1b16ed67bbb1582798cac732f538

General

Target

cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe
Size

414KB
MD5

cc38e3ac1ca97aefdaf92643c1dc68f3
SHA1

3f80d544c9e3b789db490a13c86dc5cd61682bc2
SHA256

22542d1aef8c0987be0f91b90e4f70f372cc1b16ed67bbb1582798cac732f538
SHA512

04c876e75e495e1dad18c06d669c2965feaa25d454fa54dc754091effc67c4704a78c10a53185b0cdb4e2cc3b5ca9ab6854632205539e6853dbd84e1b4f79235
SSDEEP

6144:w31JnqbGb0cd0yGdXeEW58hp9b5vwMVO5UWoU8F0:w3Hqb3meXe0loWkUl

Score

10^/10

formbook pg discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

3.9

Campaign

pg

Decoy

chinatobelgiumpertrain.com

frengeen.com

tipiacevincerefacile.bet

aniversariosyvacaciones.com

crittersitter.care

freeformflow.com

estxt.com

adongchemical.com

i1d0zglwq6n.biz

undercover-trainer.com

olimp-supplement.com

fsjuxue.com

cash4biz.loan

theboulderhousenevadacity.com

theindianstores.com

crescentdetailing.com

emslvy.com

remeshkoff.com

hizliporno.info

nanny8024.com

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral2/memory/4012-19-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral2/memory/4012-28-0x0000000000400000-0x000000000042A000-memory.dmp	formbook

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
1376	kemelsystmgr.exe
4012	kemelsystmgr.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\systemkemel = "C:\\Users\\Admin\\AppData\\Local\\kemelsystmgr.exe"	kemelsystmgr.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1376 set thread context of 4012	1376	kemelsystmgr.exe	107
PID 4012 set thread context of 3504	4012	kemelsystmgr.exe	56
PID 260 set thread context of 3504	260	mstsc.exe	56

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kemelsystmgr.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
4012	kemelsystmgr.exe
4012	kemelsystmgr.exe
4012	kemelsystmgr.exe
4012	kemelsystmgr.exe
260	mstsc.exe
260	mstsc.exe
260	mstsc.exe
260	mstsc.exe
260	mstsc.exe
260	mstsc.exe
260	mstsc.exe
260	mstsc.exe
260	mstsc.exe
260	mstsc.exe
260	mstsc.exe
260	mstsc.exe
260	mstsc.exe
260	mstsc.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4012	kemelsystmgr.exe
4012	kemelsystmgr.exe
4012	kemelsystmgr.exe
260	mstsc.exe
260	mstsc.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4164	cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe
Token: SeDebugPrivilege	1376	kemelsystmgr.exe
Token: SeDebugPrivilege	4012	kemelsystmgr.exe
Token: SeShutdownPrivilege	3504	Explorer.EXE
Token: SeCreatePagefilePrivilege	3504	Explorer.EXE
Token: SeDebugPrivilege	260	mstsc.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3504	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4164 wrote to memory of 1168	4164	cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe	97
PID 4164 wrote to memory of 1168	4164	cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe	97
PID 4164 wrote to memory of 1168	4164	cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe	97
PID 4164 wrote to memory of 2728	4164	cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe	99
PID 4164 wrote to memory of 2728	4164	cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe	99
PID 4164 wrote to memory of 2728	4164	cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe	99
PID 2728 wrote to memory of 1376	2728	cmd.exe	101
PID 2728 wrote to memory of 1376	2728	cmd.exe	101
PID 2728 wrote to memory of 1376	2728	cmd.exe	101
PID 1376 wrote to memory of 4012	1376	kemelsystmgr.exe	107
PID 1376 wrote to memory of 4012	1376	kemelsystmgr.exe	107
PID 1376 wrote to memory of 4012	1376	kemelsystmgr.exe	107
PID 1376 wrote to memory of 4012	1376	kemelsystmgr.exe	107
PID 1376 wrote to memory of 4012	1376	kemelsystmgr.exe	107
PID 1376 wrote to memory of 4012	1376	kemelsystmgr.exe	107
PID 3504 wrote to memory of 260	3504	Explorer.EXE	111
PID 3504 wrote to memory of 260	3504	Explorer.EXE	111
PID 3504 wrote to memory of 260	3504	Explorer.EXE	111
PID 260 wrote to memory of 1168	260	mstsc.exe	112
PID 260 wrote to memory of 1168	260	mstsc.exe	112
PID 260 wrote to memory of 1168	260	mstsc.exe	112

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3504
- C:\Users\Admin\AppData\Local\Temp\cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4164
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe" "C:\Users\Admin\AppData\Local\kemelsystmgr.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1168
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c, "C:\Users\Admin\AppData\Local\kemelsystmgr.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2728
  - - C:\Users\Admin\AppData\Local\kemelsystmgr.exe
      "C:\Users\Admin\AppData\Local\kemelsystmgr.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1376
    - - C:\Users\Admin\AppData\Local\kemelsystmgr.exe
        
        "C:\Users\Admin\AppData\Local\kemelsystmgr.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of AdjustPrivilegeToken
        
        PID:4012
- C:\Windows\SysWOW64\mstsc.exe
  "C:\Windows\SysWOW64\mstsc.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:260
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\kemelsystmgr.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1168

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\kemelsystmgr.exe

Filesize
414KB

MD5
cc38e3ac1ca97aefdaf92643c1dc68f3

SHA1
3f80d544c9e3b789db490a13c86dc5cd61682bc2

SHA256
22542d1aef8c0987be0f91b90e4f70f372cc1b16ed67bbb1582798cac732f538

SHA512
04c876e75e495e1dad18c06d669c2965feaa25d454fa54dc754091effc67c4704a78c10a53185b0cdb4e2cc3b5ca9ab6854632205539e6853dbd84e1b4f79235

Download Submit
memory/260-29-0x00000000009A0000-0x0000000000ADA000-memory.dmp

Filesize
1.2MB

Download
memory/260-27-0x00000000009A0000-0x0000000000ADA000-memory.dmp

Filesize
1.2MB

Download
memory/1376-23-0x0000000074470000-0x0000000074C20000-memory.dmp

Filesize
7.7MB

Download
memory/1376-21-0x0000000074470000-0x0000000074C20000-memory.dmp

Filesize
7.7MB

Download
memory/1376-18-0x0000000074470000-0x0000000074C20000-memory.dmp

Filesize
7.7MB

Download
memory/1376-17-0x0000000074470000-0x0000000074C20000-memory.dmp

Filesize
7.7MB

Download
memory/1376-16-0x0000000074470000-0x0000000074C20000-memory.dmp

Filesize
7.7MB

Download
memory/3504-26-0x00000000025C0000-0x00000000026F8000-memory.dmp

Filesize
1.2MB

Download
memory/3504-33-0x0000000003E90000-0x0000000003F7F000-memory.dmp

Filesize
956KB

Download
memory/3504-31-0x00000000025C0000-0x00000000026F8000-memory.dmp

Filesize
1.2MB

Download
memory/4012-19-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/4012-28-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/4012-24-0x00000000015B0000-0x00000000018FA000-memory.dmp

Filesize
3.3MB

Download
memory/4164-4-0x000000007447E000-0x000000007447F000-memory.dmp

Filesize
4KB

Download
memory/4164-12-0x0000000074470000-0x0000000074C20000-memory.dmp

Filesize
7.7MB

Download
memory/4164-3-0x0000000074470000-0x0000000074C20000-memory.dmp

Filesize
7.7MB

Download
memory/4164-5-0x0000000005A90000-0x0000000005AF6000-memory.dmp

Filesize
408KB

Download
memory/4164-0-0x000000007447E000-0x000000007447F000-memory.dmp

Filesize
4KB

Download
memory/4164-2-0x00000000055E0000-0x00000000055FA000-memory.dmp

Filesize
104KB

Download
memory/4164-6-0x0000000005BA0000-0x0000000005C32000-memory.dmp

Filesize
584KB

Download
memory/4164-1-0x0000000000C30000-0x0000000000C9E000-memory.dmp

Filesize
440KB

Download
memory/4164-7-0x0000000074470000-0x0000000074C20000-memory.dmp

Filesize
7.7MB

Download
memory/4164-8-0x0000000006330000-0x00000000068D4000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads