formbook | 9dbaa66ef9f31c83ab943932bc96eaf2d6e9c1995b427c75e6e9a259f2c91697

General

Target

a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe
Size

1.6MB
MD5

a03c2d4c4885db5f3e8264e2e0523ee9
SHA1

53d45a80e79d121ec6745cf8816acb7e6598b897
SHA256

9dbaa66ef9f31c83ab943932bc96eaf2d6e9c1995b427c75e6e9a259f2c91697
SHA512

6f2ec109bf1e5b96f35d2b8ff1cc8facad31f329adad3486198f5b80ba38e7a17bf6a10d355f770f4b05b16dc1fedacf43afeaecabdfc8d34b8e998e14135433
SSDEEP

24576:xlUjX00wR9Uqk8qW0gmRR1Gbp0PjcET+v3JR945EIy8o:xKjXMR9UN8lYGbp0P4E6v3Jf4

Score

10^/10

formbook rzn discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

rzn

Decoy

lyeth.net

annatdinh.com

amber-pozzi.com

kalunenterprise.com

knightskysbts.com

drnishamaharaj.com

neverendingbreadsticks.com

asuvac.com

snapbidz.com

autovistoriapredial.net

eskisla.com

fiorej.com

probuscee.com

elysme.com

laizdancefit.com

pet-imports.com

imasshipping.com

greenflagcars.com

essentialoilphotos.com

demolition4us.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/3668-21-0x0000000000400000-0x000000000042E000-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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3652 set thread context of 3668	3652	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	101

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	a03c2d4c4885db5f3e8264e2e0523ee9_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
4584	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3652	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe
3668	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe
3668	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3652	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3652 wrote to memory of 4584	3652	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	99
PID 3652 wrote to memory of 4584	3652	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	99
PID 3652 wrote to memory of 4584	3652	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	99
PID 3652 wrote to memory of 3668	3652	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	101
PID 3652 wrote to memory of 3668	3652	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	101
PID 3652 wrote to memory of 3668	3652	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	101
PID 3652 wrote to memory of 3668	3652	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	101
PID 3652 wrote to memory of 3668	3652	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	101
PID 3652 wrote to memory of 3668	3652	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	101

C:\Users\Admin\AppData\Local\Temp\a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a03c2d4c4885db5f3e8264e2e0523ee9_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:3652
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TbBsVt" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3AEC.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4584
- C:\Users\Admin\AppData\Local\Temp\a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3668

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\tmp3AEC.tmp

Filesize
1KB

MD5
68d5e65e24756595ab7b67b493e3f9a5

SHA1
cbe6f59785e638002a180d9ef23002fbf167e837

SHA256
be258400a2ec80faeeb5df00e848d525c9b8cd6409e6bdc9e56181c32adf3ac9

SHA512
16afc670a41be3c42948de117eb59c3ad82be643c980388d479072206dfcc907b9bb43c1d01e53b1a88c61ed1d7d3e22b5cd40d46a31a4bb277f935a6fff3f99

Download Submit
memory/3652-8-0x0000000008300000-0x0000000008654000-memory.dmp

Filesize
3.3MB

Download
memory/3652-7-0x0000000007990000-0x00000000079E6000-memory.dmp

Filesize
344KB

Download
memory/3652-3-0x0000000007D50000-0x00000000082F4000-memory.dmp

Filesize
5.6MB

Download
memory/3652-4-0x00000000077A0000-0x0000000007832000-memory.dmp

Filesize
584KB

Download
memory/3652-12-0x0000000008910000-0x000000000891A000-memory.dmp

Filesize
40KB

Download
memory/3652-6-0x0000000004C40000-0x0000000004C4A000-memory.dmp

Filesize
40KB

Download
memory/3652-2-0x0000000007700000-0x000000000779C000-memory.dmp

Filesize
624KB

Download
memory/3652-0-0x000000007446E000-0x000000007446F000-memory.dmp

Filesize
4KB

Download
memory/3652-5-0x0000000074460000-0x0000000074C10000-memory.dmp

Filesize
7.7MB

Download
memory/3652-13-0x000000007446E000-0x000000007446F000-memory.dmp

Filesize
4KB

Download
memory/3652-14-0x0000000074460000-0x0000000074C10000-memory.dmp

Filesize
7.7MB

Download
memory/3652-15-0x000000000AA90000-0x000000000AAEC000-memory.dmp

Filesize
368KB

Download
memory/3652-1-0x00000000006B0000-0x000000000085A000-memory.dmp

Filesize
1.7MB

Download
memory/3652-23-0x0000000074460000-0x0000000074C10000-memory.dmp

Filesize
7.7MB

Download
memory/3668-21-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3668-24-0x0000000001440000-0x000000000178A000-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