formbook | fdf3aa0df3a0d4a6d053c55b970ad22f71f5db88f2da4f94bc18f1926b731f1b

General

Target

957014bc66c96533ca3cf65a5b355038_JaffaCakes118.exe
Size

732KB
MD5

957014bc66c96533ca3cf65a5b355038
SHA1

cedbfdb6bd9d4ee9397d2fe0bfab563b01c9ba2a
SHA256

fdf3aa0df3a0d4a6d053c55b970ad22f71f5db88f2da4f94bc18f1926b731f1b
SHA512

dd3a42758775b0b8cbd53f89dd23d99ae56a76fa4c13abae3e307c5209ec1edf5a070fddafa9bf6174a0243089bab53fe0c9988ae4b4af2f72f42a2d4e089314
SSDEEP

12288:nX6Orlv+6cJ/QlI2eUBvV+klwuimKb0aw1xcA6i5zDJEkcYv2tasGHW:X6O5Lg/XUB9+jPsxJ6i5zDeyutasoW

Score

10^/10

formbook bf3 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bf3

Decoy

ecatcom.com

what3emoji.com

primbathandbody.com

yt-itclub.com

newbieeer.com

getyoursofa.com

mexicanitems.info

catalogcardgames.net

leagueofwomengolfers.com

gvanmp.com

midnightsunhi.com

cnluma.com

sunsetcherrydesigns.com

cosmoproturkey.com

inifinityapps.net

making50masks.com

battalionice.com

uk-calculation.net

frosteatlove.com

bs-mag.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/4076-14-0x0000000000400000-0x000000000042E000-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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	957014bc66c96533ca3cf65a5b355038_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4860 set thread context of 4076	4860	957014bc66c96533ca3cf65a5b355038_JaffaCakes118.exe	96

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	957014bc66c96533ca3cf65a5b355038_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
1160	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4076	957014bc66c96533ca3cf65a5b355038_JaffaCakes118.exe
4076	957014bc66c96533ca3cf65a5b355038_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4860 wrote to memory of 1160	4860	957014bc66c96533ca3cf65a5b355038_JaffaCakes118.exe	94
PID 4860 wrote to memory of 1160	4860	957014bc66c96533ca3cf65a5b355038_JaffaCakes118.exe	94
PID 4860 wrote to memory of 1160	4860	957014bc66c96533ca3cf65a5b355038_JaffaCakes118.exe	94
PID 4860 wrote to memory of 4076	4860	957014bc66c96533ca3cf65a5b355038_JaffaCakes118.exe	96
PID 4860 wrote to memory of 4076	4860	957014bc66c96533ca3cf65a5b355038_JaffaCakes118.exe	96
PID 4860 wrote to memory of 4076	4860	957014bc66c96533ca3cf65a5b355038_JaffaCakes118.exe	96
PID 4860 wrote to memory of 4076	4860	957014bc66c96533ca3cf65a5b355038_JaffaCakes118.exe	96
PID 4860 wrote to memory of 4076	4860	957014bc66c96533ca3cf65a5b355038_JaffaCakes118.exe	96
PID 4860 wrote to memory of 4076	4860	957014bc66c96533ca3cf65a5b355038_JaffaCakes118.exe	96

C:\Users\Admin\AppData\Local\Temp\957014bc66c96533ca3cf65a5b355038_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\957014bc66c96533ca3cf65a5b355038_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4860
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NPFWxIEmY" /XML "C:\Users\Admin\AppData\Local\Temp\tmp24D.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1160
- C:\Users\Admin\AppData\Local\Temp\957014bc66c96533ca3cf65a5b355038_JaffaCakes118.exe
  "{path}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4076

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp24D.tmp

Filesize
1KB

MD5
df31f8482a9614acf2d1a802ac8c527b

SHA1
609a811016617e2902c1810d099f681353f6096e

SHA256
d6e681091e3d8bbcd7e7ed8bc05c2d0b594959fef85ef9c05ee821e8d45cd369

SHA512
8cf13d27ea190be6000f4020b85aa94d0adc3ccb967995d888636b12c2a63377e961bba7d89b41d96628a4d5c253d64c7268d733b95e115e130d3422fd41cef3

Download Submit
memory/4076-17-0x0000000001940000-0x0000000001C8A000-memory.dmp

Filesize
3.3MB

Download
memory/4076-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4860-6-0x00000000084E0000-0x000000000857C000-memory.dmp

Filesize
624KB

Download
memory/4860-4-0x00000000056B0000-0x00000000056BA000-memory.dmp

Filesize
40KB

Download
memory/4860-5-0x0000000074880000-0x0000000075030000-memory.dmp

Filesize
7.7MB

Download
memory/4860-0-0x000000007488E000-0x000000007488F000-memory.dmp

Filesize
4KB

Download
memory/4860-7-0x0000000005C80000-0x0000000005C88000-memory.dmp

Filesize
32KB

Download
memory/4860-8-0x000000007488E000-0x000000007488F000-memory.dmp

Filesize
4KB

Download
memory/4860-9-0x0000000074880000-0x0000000075030000-memory.dmp

Filesize
7.7MB

Download
memory/4860-10-0x0000000008580000-0x0000000008616000-memory.dmp

Filesize
600KB

Download
memory/4860-3-0x00000000056F0000-0x0000000005782000-memory.dmp

Filesize
584KB

Download
memory/4860-2-0x0000000005CA0000-0x0000000006244000-memory.dmp

Filesize
5.6MB

Download
memory/4860-16-0x0000000074880000-0x0000000075030000-memory.dmp

Filesize
7.7MB

Download
memory/4860-1-0x0000000000C50000-0x0000000000D0E000-memory.dmp

Filesize
760KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads