formbook | f23a4109022b07435c73f2f5e29770e87cdda4ef2a77c8b978a2b089399ea903

General

Target

0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe
Size

909KB
MD5

0c2b1eeac25a832ce077154cf58b8ffd
SHA1

b6c42b104518cd63b967edbffe1c25187fa7d9f3
SHA256

f23a4109022b07435c73f2f5e29770e87cdda4ef2a77c8b978a2b089399ea903
SHA512

93622b34856b3aaf16967fac2dd53f388ebf1de5096a8b30a5a19ba76ec7f907b72aa80d9f6eb498f6162cff1f8d5cb8f5f532c0d745af0f6f761ac350d7233a
SSDEEP

12288:taWK2n3qGaNHEyC9/oR9gy5FHK7zj40FvGFrE4trCdBdWSQZ3+ybEwcjpg+OzRV6:tnKePp9AR95yX40F8rC1K1Fc9QVixIO

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/3940-18-0x0000000000400000-0x000000000042E000-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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3292 set thread context of 3940	3292	0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.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	0c2b1eeac25a832ce077154cf58b8ffd_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
4420	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3292	0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe
3292	0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe
3940	0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe
3940	0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3292	0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3292 wrote to memory of 4420	3292	0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe	91
PID 3292 wrote to memory of 4420	3292	0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe	91
PID 3292 wrote to memory of 4420	3292	0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe	91
PID 3292 wrote to memory of 4312	3292	0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe	93
PID 3292 wrote to memory of 4312	3292	0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe	93
PID 3292 wrote to memory of 4312	3292	0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe	93
PID 3292 wrote to memory of 3940	3292	0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe	94
PID 3292 wrote to memory of 3940	3292	0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe	94
PID 3292 wrote to memory of 3940	3292	0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe	94
PID 3292 wrote to memory of 3940	3292	0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe	94
PID 3292 wrote to memory of 3940	3292	0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe	94
PID 3292 wrote to memory of 3940	3292	0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe	94

C:\Users\Admin\AppData\Local\Temp\0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.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:3292
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KFwXXDtxJrwJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4F92.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4420
- C:\Users\Admin\AppData\Local\Temp\0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe"
  2⤵
  PID:4312
- C:\Users\Admin\AppData\Local\Temp\0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\0c2b1eeac25a832ce077154cf58b8ffd_JaffaCakes118.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3940

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\tmp4F92.tmp

Filesize
1KB

MD5
d25647ade8c9df2985b5f071fa98fad0

SHA1
4db8b77becb24c1ff5485eb082fbe1541e54c307

SHA256
d98550dddfe85127fc1d9f5912b410b1073dc3b72e695ca6fb0ee23393f1c8ae

SHA512
22ae375944dc15d0f81bde81b30b7b71b046fe4ad26b5729b6bfee10704bc6fe39fd8a9b51ca353cdc49931fa904090cf9d4c8046952f78302e826154cfa1e1d

Download Submit
memory/3292-8-0x0000000008180000-0x0000000008196000-memory.dmp

Filesize
88KB

Download
memory/3292-7-0x0000000074E70000-0x0000000075620000-memory.dmp

Filesize
7.7MB

Download
memory/3292-3-0x0000000005A20000-0x0000000005FC4000-memory.dmp

Filesize
5.6MB

Download
memory/3292-4-0x0000000005510000-0x00000000055A2000-memory.dmp

Filesize
584KB

Download
memory/3292-9-0x0000000074E7E000-0x0000000074E7F000-memory.dmp

Filesize
4KB

Download
memory/3292-6-0x0000000005740000-0x0000000005796000-memory.dmp

Filesize
344KB

Download
memory/3292-2-0x00000000053D0000-0x000000000546C000-memory.dmp

Filesize
624KB

Download
memory/3292-0-0x0000000074E7E000-0x0000000074E7F000-memory.dmp

Filesize
4KB

Download
memory/3292-5-0x00000000054F0000-0x00000000054FA000-memory.dmp

Filesize
40KB

Download
memory/3292-10-0x0000000074E70000-0x0000000075620000-memory.dmp

Filesize
7.7MB

Download
memory/3292-11-0x0000000008620000-0x00000000086C4000-memory.dmp

Filesize
656KB

Download
memory/3292-12-0x000000000ADD0000-0x000000000AE04000-memory.dmp

Filesize
208KB

Download
memory/3292-1-0x00000000009B0000-0x0000000000A98000-memory.dmp

Filesize
928KB

Download
memory/3292-20-0x0000000074E70000-0x0000000075620000-memory.dmp

Filesize
7.7MB

Download
memory/3940-18-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3940-21-0x00000000019F0000-0x0000000001D3A000-memory.dmp

Filesize
3.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads