formbook | 032c66d81ce4a924a55d617dffa477aa00585353bcb9a5737a41130cfbe0d054

General

Target

e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe
Size

744KB
MD5

e5499b1ba3f0708bf02685a5d8615f86
SHA1

4f50a2c9acd8b45589fe79423f59735fe8e0e5df
SHA256

032c66d81ce4a924a55d617dffa477aa00585353bcb9a5737a41130cfbe0d054
SHA512

d5e09da1485faab13bd36f2cd265791ca42fe7bfe00ef65b6efc402d3c8100ac49ede313aa803432a0690f55e4b6dd7bacd11f24c3429abdb7a6facf5df0b5bd
SSDEEP

12288:gEYMt4NZddWiui/HFtZ0dg9p+RkArg/KS1OsjQ4W10HK7zaWnPDmy1COQ2b9A87M:mLH9p2gwZFLPiy1lJcmhyXkwoAEpAqH0

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 family
formbook

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/1652-18-0x0000000000400000-0x000000000042E000-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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4448 set thread context of 1652	4448	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	95

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	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.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
4688	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4448	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe
4448	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe
4448	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe
4448	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe
1652	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe
1652	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4448	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4448 wrote to memory of 4688	4448	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	91
PID 4448 wrote to memory of 4688	4448	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	91
PID 4448 wrote to memory of 4688	4448	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	91
PID 4448 wrote to memory of 1376	4448	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	93
PID 4448 wrote to memory of 1376	4448	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	93
PID 4448 wrote to memory of 1376	4448	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	93
PID 4448 wrote to memory of 552	4448	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	94
PID 4448 wrote to memory of 552	4448	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	94
PID 4448 wrote to memory of 552	4448	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	94
PID 4448 wrote to memory of 1652	4448	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	95
PID 4448 wrote to memory of 1652	4448	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	95
PID 4448 wrote to memory of 1652	4448	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	95
PID 4448 wrote to memory of 1652	4448	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	95
PID 4448 wrote to memory of 1652	4448	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	95
PID 4448 wrote to memory of 1652	4448	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	95

C:\Users\Admin\AppData\Local\Temp\e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e5499b1ba3f0708bf02685a5d8615f86_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:4448
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cfUvoZI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1112.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4688
- C:\Users\Admin\AppData\Local\Temp\e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe"
  2⤵
  PID:1376
- C:\Users\Admin\AppData\Local\Temp\e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe"
  2⤵
  PID:552
- C:\Users\Admin\AppData\Local\Temp\e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1652

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\tmp1112.tmp

Filesize
1KB

MD5
883c70c69673dfcf32c1a2ba844c295f

SHA1
358088b890fb700b3dbcb95cc674794c60bbd70e

SHA256
d6868db9b67cbf1a8db67da71e9c9fbbdc142dea6bfe66643dd03b05785213ce

SHA512
b1fa81a1aab6465e9c81a963d4a217e6180b6ee197eb9b09880ab4c15743eefae03ed1ea53159b6b065a32d54602314d69b4902a4822148f9273c6afab208845

Download Submit
memory/1652-21-0x00000000017A0000-0x0000000001AEA000-memory.dmp

Filesize
3.3MB

Download
memory/1652-18-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4448-8-0x0000000007C50000-0x0000000007C66000-memory.dmp

Filesize
88KB

Download
memory/4448-10-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/4448-5-0x0000000004E90000-0x0000000004E9A000-memory.dmp

Filesize
40KB

Download
memory/4448-6-0x00000000051E0000-0x0000000005236000-memory.dmp

Filesize
344KB

Download
memory/4448-7-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/4448-0-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

Filesize
4KB

Download
memory/4448-9-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

Filesize
4KB

Download
memory/4448-4-0x0000000004EC0000-0x0000000004F52000-memory.dmp

Filesize
584KB

Download
memory/4448-11-0x00000000080E0000-0x0000000008184000-memory.dmp

Filesize
656KB

Download
memory/4448-12-0x000000000A8A0000-0x000000000A8D4000-memory.dmp

Filesize
208KB

Download
memory/4448-3-0x00000000053D0000-0x0000000005974000-memory.dmp

Filesize
5.6MB

Download
memory/4448-2-0x0000000004D40000-0x0000000004DDC000-memory.dmp

Filesize
624KB

Download
memory/4448-20-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/4448-1-0x0000000000480000-0x0000000000540000-memory.dmp

Filesize
768KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads