formbook | de5b63f4ffe84d34885e76b8f29147ab33106eeb4b3800d57c0e1edd23866fd8

General

Target

JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe
Size

420KB
MD5

419b8fbf8ca9417802fec54932b21f75
SHA1

e8e5f943e65532a7317dae25894825cfb8187fdf
SHA256

de5b63f4ffe84d34885e76b8f29147ab33106eeb4b3800d57c0e1edd23866fd8
SHA512

5158408f1e32abe89be6e78f1baf8254293a2c3b160799b0813d471f5db31a8a0816c2431beb0467c007ed0e25567b263b551884e20ee2a5fd01807f46d313d0
SSDEEP

6144:C37ZCkv/N2mK4vZKhrLslLT7yVKxpqjVyQBAHSUf29HwoXFaMRyGbTB5FY:C37ZCc24PmKxXQwft27jbTDi

Score

10^/10

formbook u1bs discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

u1bs

Decoy

ln-safe-keepingmisva4.xyz

rtfh.xyz

awolin.link

metadlf.com

cardboardcasual.com

psicoterapiahablada.com

spaminator.xyz

hnjqzl.top

dentalyinovasi.site

biosynblas.com

zvyk.store

shreevishwakarmaservices.com

showersplash.com

norbert-roth.com

londoncapitaltraders.com

istanbuldonerkebabheroncity.com

realdiscountsnow.com

marlinplumbingwnc.com

magazinadziavane.com

qantv.com

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/1940-16-0x0000000000400000-0x000000000042F000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3640 set thread context of 1940	3640	JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe	94

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 2 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1584	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3640	JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe
3640	JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe
1940	JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe
1940	JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3640	JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3640 wrote to memory of 1584	3640	JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe	91
PID 3640 wrote to memory of 1584	3640	JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe	91
PID 3640 wrote to memory of 1584	3640	JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe	91
PID 3640 wrote to memory of 2912	3640	JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe	92
PID 3640 wrote to memory of 2912	3640	JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe	92
PID 3640 wrote to memory of 2912	3640	JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe	92
PID 3640 wrote to memory of 1940	3640	JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe	94
PID 3640 wrote to memory of 1940	3640	JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe	94
PID 3640 wrote to memory of 1940	3640	JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe	94
PID 3640 wrote to memory of 1940	3640	JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe	94
PID 3640 wrote to memory of 1940	3640	JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe	94
PID 3640 wrote to memory of 1940	3640	JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe	94

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3640
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NPIxfsfIv" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7191.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1584
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe"
  2⤵
  PID:2912
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_419b8fbf8ca9417802fec54932b21f75.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1940

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

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

memory/1940-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1940-19-0x00000000011E0000-0x000000000152A000-memory.dmp

Filesize
3.3MB

Download
memory/3640-6-0x00000000063C0000-0x000000000645C000-memory.dmp

Filesize
624KB

Download
memory/3640-3-0x0000000004CF0000-0x0000000004D82000-memory.dmp

Filesize
584KB

Download
memory/3640-4-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/3640-5-0x0000000004C90000-0x0000000004C9A000-memory.dmp

Filesize
40KB

Download
memory/3640-0-0x000000007535E000-0x000000007535F000-memory.dmp

Filesize
4KB

Download
memory/3640-7-0x00000000051E0000-0x00000000051EE000-memory.dmp

Filesize
56KB

Download
memory/3640-8-0x000000007535E000-0x000000007535F000-memory.dmp

Filesize
4KB

Download
memory/3640-9-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/3640-10-0x0000000006760000-0x00000000067B8000-memory.dmp

Filesize
352KB

Download
memory/3640-2-0x00000000052A0000-0x0000000005844000-memory.dmp

Filesize
5.6MB

Download
memory/3640-18-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/3640-1-0x0000000000270000-0x00000000002E0000-memory.dmp

Filesize
448KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads