formbook | 29559b48621146787d64cd953d655cd34f1b4a029c450d4364e2026e8a671982

General

Target

c793aa3151a912ac2f8395472d580e02_JaffaCakes118.exe
Size

1.0MB
MD5

c793aa3151a912ac2f8395472d580e02
SHA1

3a57bb08ee72c170abf5baa6ebc2bf3c06242ba8
SHA256

29559b48621146787d64cd953d655cd34f1b4a029c450d4364e2026e8a671982
SHA512

733ddccda37f02e7e5d6c435348cc711819fde7efb3e3a60506e84d787a0d5049e1b822a368c6fa65433a14e026982efa418808b354ab27665e30c11c0dab561
SSDEEP

12288:FjyBKuaUvheZI/hEpLrXtRSf6kXNYMGLYDXIE2tuyG24NGX2saLGPA5E6WtXSitJ:wpeZI/GBy6kd6L5E2dH

Score

10^/10

formbook j7e discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

j7e

Decoy

cefuoficial.com

luxmusicclub.com

getridofmyed.xyz

sports-plaza.com

peteropsomer.com

kemendi.com

divinciresolve.com

readtogrowup.com

hidex-corp.com

aladininternational.com

snesait.art

ezzpick.net

saveashow.com

eazyprintsplus.com

usadatesclub.com

rafaelraf.com

themiamadison.com

regarta.com

aiocitys.net

ahorn-invest.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/1444-8-0x0000000000400000-0x000000000042E000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	c793aa3151a912ac2f8395472d580e02_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3400 set thread context of 1444	3400	c793aa3151a912ac2f8395472d580e02_JaffaCakes118.exe	93

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	c793aa3151a912ac2f8395472d580e02_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
4528	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1444	c793aa3151a912ac2f8395472d580e02_JaffaCakes118.exe
1444	c793aa3151a912ac2f8395472d580e02_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3400 wrote to memory of 4528	3400	c793aa3151a912ac2f8395472d580e02_JaffaCakes118.exe	91
PID 3400 wrote to memory of 4528	3400	c793aa3151a912ac2f8395472d580e02_JaffaCakes118.exe	91
PID 3400 wrote to memory of 4528	3400	c793aa3151a912ac2f8395472d580e02_JaffaCakes118.exe	91
PID 3400 wrote to memory of 1444	3400	c793aa3151a912ac2f8395472d580e02_JaffaCakes118.exe	93
PID 3400 wrote to memory of 1444	3400	c793aa3151a912ac2f8395472d580e02_JaffaCakes118.exe	93
PID 3400 wrote to memory of 1444	3400	c793aa3151a912ac2f8395472d580e02_JaffaCakes118.exe	93
PID 3400 wrote to memory of 1444	3400	c793aa3151a912ac2f8395472d580e02_JaffaCakes118.exe	93
PID 3400 wrote to memory of 1444	3400	c793aa3151a912ac2f8395472d580e02_JaffaCakes118.exe	93
PID 3400 wrote to memory of 1444	3400	c793aa3151a912ac2f8395472d580e02_JaffaCakes118.exe	93

C:\Users\Admin\AppData\Local\Temp\c793aa3151a912ac2f8395472d580e02_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c793aa3151a912ac2f8395472d580e02_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3400
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yYztPujITIdJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp38FD.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4528
- C:\Users\Admin\AppData\Local\Temp\c793aa3151a912ac2f8395472d580e02_JaffaCakes118.exe
  "{path}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1444

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

C:\Users\Admin\AppData\Local\Temp\tmp38FD.tmp

Filesize
1KB

MD5
8138eeb435ab44aa9deb03652d1b2f99

SHA1
330e9bbc2ab95408304539eef795574445c6ee9a

SHA256
084823073c2752ff9f0a273d5f6ef7528f80b110a11f754cabe73faca2184f13

SHA512
4d80dd79aa4367708ac088845db9f6cfe31dd10c29414cdd6df6f1d37ec9ab36a02cf7b6625c89d8b3401a0cb8efecbfb20136ce3ff5388f9aaeee7758884a6a

Download Submit
memory/1444-8-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1444-11-0x0000000001230000-0x000000000157A000-memory.dmp

Filesize
3.3MB

Download
memory/3400-0-0x00000000754D2000-0x00000000754D3000-memory.dmp

Filesize
4KB

Download
memory/3400-1-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/3400-2-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/3400-3-0x00000000754D2000-0x00000000754D3000-memory.dmp

Filesize
4KB

Download
memory/3400-4-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/3400-10-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads