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
behavioral1/memory/2808-20-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2240 set thread context of 2808	2240	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	31

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 3 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	DllHost.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
980	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2808	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 980	2240	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	29
PID 2240 wrote to memory of 980	2240	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	29
PID 2240 wrote to memory of 980	2240	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	29
PID 2240 wrote to memory of 980	2240	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	29
PID 2240 wrote to memory of 2808	2240	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	31
PID 2240 wrote to memory of 2808	2240	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	31
PID 2240 wrote to memory of 2808	2240	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	31
PID 2240 wrote to memory of 2808	2240	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	31
PID 2240 wrote to memory of 2808	2240	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	31
PID 2240 wrote to memory of 2808	2240	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	31
PID 2240 wrote to memory of 2808	2240	a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TbBsVt" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD6C0.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:980
- C:\Users\Admin\AppData\Local\Temp\a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\a03c2d4c4885db5f3e8264e2e0523ee9_JaffaCakes118.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2808

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}
1⤵
- System Location Discovery: System Language Discovery
PID:2448

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

System Information Discovery

1

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\tmpD6C0.tmp

Filesize
1KB

MD5
8f34387b1899d8ebca3472bade49f5ea

SHA1
f3d406142b2bf2310ee6c88923d40f801a9d94ef

SHA256
7d711bd5220035e491590e354cd279ce8d27ae82757d92c0787d4d206c505e7c

SHA512
7c28d85728aee9575ce775d93ff3c745d905de36e91c8af2367c91b6c547ccbcb3ca10daeab71e1f7b400ec1c3d4482cf05f2de91c7c10272aa3921c3e7351a1

Download Submit
memory/2240-9-0x0000000004BE0000-0x0000000004C3C000-memory.dmp

Filesize
368KB

Download
memory/2240-2-0x0000000073D30000-0x000000007441E000-memory.dmp

Filesize
6.9MB

Download
memory/2240-6-0x00000000004C0000-0x00000000004CA000-memory.dmp

Filesize
40KB

Download
memory/2240-7-0x0000000073D3E000-0x0000000073D3F000-memory.dmp

Filesize
4KB

Download
memory/2240-8-0x0000000073D30000-0x000000007441E000-memory.dmp

Filesize
6.9MB

Download
memory/2240-0-0x0000000073D3E000-0x0000000073D3F000-memory.dmp

Filesize
4KB

Download
memory/2240-1-0x00000000009E0000-0x0000000000B8A000-memory.dmp

Filesize
1.7MB

Download
memory/2240-21-0x0000000073D30000-0x000000007441E000-memory.dmp

Filesize
6.9MB

Download
memory/2808-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2808-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2808-20-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2808-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2808-22-0x0000000000B90000-0x0000000000E93000-memory.dmp

Filesize
3.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads