formbook | bd746ec7cac902a0b12f829efa801316f11b5ab6df024ff0f75c178134daad99

General

Target

3a4b0695b3752747171249f731a42a0f_JaffaCakes118.exe
Size

889KB
MD5

3a4b0695b3752747171249f731a42a0f
SHA1

472db8f1ad0121714b1c0692d050f055ee7117dc
SHA256

bd746ec7cac902a0b12f829efa801316f11b5ab6df024ff0f75c178134daad99
SHA512

a21fbc3d9c7c9c87ccab446ee7ec978826cadbe3faaa9fc6bb2fa07e4d5d9ecf7ea00de897ded2ff2452b951197f94d37d62e5d4d82e101eb1db7efaac4b26da
SSDEEP

12288:F5LfSgsVSj4s4IHK7zqcqpvYri3jZcYGnnwFN5pP0D+9uAw0OyVq/k:vQSksmPq7iK5pP0v0OAq/

Score

10^/10

formbook o4ms discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

o4ms

Decoy

fishingboatpub.com

trebor72.com

qualitycleanaustralia.com

amphilykenyx.com

jayte90.net

alveegrace.com

le-fleursoleil.com

volumoffer.com

businessbookwriters.com

alpin-art.com

firsttastetogo.com

catofc.com

ref-290.com

sbo2008.com

fortlauderdaleelevators.com

shanghaiyalian.com

majestybags.com

afcerd.com

myceliated.com

ls0a.com

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/3524-18-0x0000000000400000-0x000000000042E000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	3a4b0695b3752747171249f731a42a0f_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5088 set thread context of 3524	5088	3a4b0695b3752747171249f731a42a0f_JaffaCakes118.exe	92

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	3a4b0695b3752747171249f731a42a0f_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
1012	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3524	3a4b0695b3752747171249f731a42a0f_JaffaCakes118.exe
3524	3a4b0695b3752747171249f731a42a0f_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 5088 wrote to memory of 1012	5088	3a4b0695b3752747171249f731a42a0f_JaffaCakes118.exe	90
PID 5088 wrote to memory of 1012	5088	3a4b0695b3752747171249f731a42a0f_JaffaCakes118.exe	90
PID 5088 wrote to memory of 1012	5088	3a4b0695b3752747171249f731a42a0f_JaffaCakes118.exe	90
PID 5088 wrote to memory of 3524	5088	3a4b0695b3752747171249f731a42a0f_JaffaCakes118.exe	92
PID 5088 wrote to memory of 3524	5088	3a4b0695b3752747171249f731a42a0f_JaffaCakes118.exe	92
PID 5088 wrote to memory of 3524	5088	3a4b0695b3752747171249f731a42a0f_JaffaCakes118.exe	92
PID 5088 wrote to memory of 3524	5088	3a4b0695b3752747171249f731a42a0f_JaffaCakes118.exe	92
PID 5088 wrote to memory of 3524	5088	3a4b0695b3752747171249f731a42a0f_JaffaCakes118.exe	92
PID 5088 wrote to memory of 3524	5088	3a4b0695b3752747171249f731a42a0f_JaffaCakes118.exe	92

C:\Users\Admin\AppData\Local\Temp\3a4b0695b3752747171249f731a42a0f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3a4b0695b3752747171249f731a42a0f_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5088
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gBiomise" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1A59.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1012
- C:\Users\Admin\AppData\Local\Temp\3a4b0695b3752747171249f731a42a0f_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\3a4b0695b3752747171249f731a42a0f_JaffaCakes118.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3524

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\tmp1A59.tmp

Filesize
1KB

MD5
efc6d35c6272b6b890ee2a7da4227513

SHA1
6e0777f8aa1a0cb43a6f1d54f9f339f74402f7ae

SHA256
c03d5bc6270ee083aa7c0bc0bf5e8aa8301607c74d0ae302d392983d2bbc9830

SHA512
baf6777e0ab409a4e222bd1760c314541c1546e66433c9a82fcfa770365e4196f4f596240cb0ea5c6c5779b6032be80fca63114f322ccaceea116c9bcad8cf38

Download Submit
memory/3524-21-0x0000000001950000-0x0000000001C9A000-memory.dmp

Filesize
3.3MB

Download
memory/3524-18-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/5088-8-0x0000000006410000-0x0000000006426000-memory.dmp

Filesize
88KB

Download
memory/5088-10-0x0000000075060000-0x0000000075810000-memory.dmp

Filesize
7.7MB

Download
memory/5088-5-0x00000000050E0000-0x00000000050EA000-memory.dmp

Filesize
40KB

Download
memory/5088-6-0x0000000075060000-0x0000000075810000-memory.dmp

Filesize
7.7MB

Download
memory/5088-7-0x0000000005310000-0x0000000005366000-memory.dmp

Filesize
344KB

Download
memory/5088-0-0x000000007506E000-0x000000007506F000-memory.dmp

Filesize
4KB

Download
memory/5088-9-0x000000007506E000-0x000000007506F000-memory.dmp

Filesize
4KB

Download
memory/5088-4-0x0000000005180000-0x0000000005212000-memory.dmp

Filesize
584KB

Download
memory/5088-11-0x0000000006BD0000-0x0000000006C72000-memory.dmp

Filesize
648KB

Download
memory/5088-12-0x0000000009240000-0x0000000009274000-memory.dmp

Filesize
208KB

Download
memory/5088-3-0x0000000005690000-0x0000000005C34000-memory.dmp

Filesize
5.6MB

Download
memory/5088-2-0x0000000004FF0000-0x000000000508C000-memory.dmp

Filesize
624KB

Download
memory/5088-20-0x0000000075060000-0x0000000075810000-memory.dmp

Filesize
7.7MB

Download
memory/5088-1-0x0000000000590000-0x0000000000674000-memory.dmp

Filesize
912KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads