formbook | dce95471714b949f8d516b4624402fe87f7d049b30941f2375b980d97c7076f1

General

Target

de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe
Size

764KB
MD5

ec3b64c231f48d3ea93f9879085b8f6f
SHA1

8c1c69f9c751ba62781d2a79b708fb6f90b2ca6a
SHA256

de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379
SHA512

d7b2283a9a0740e51ccfb281fe81308973754720b4a5f8d13e085029499e18b6ccd342c81737968260a347894457dad873fc5e1d2493e74550f87bf34f96bb00
SSDEEP

12288:Pox9A7nAvUFEHUNme8k9vf9d0Z7OXW/cC4Ff75wyk9h5BhvnYjp5wylG:o9SAvUq6m5mqZWWP4hdwyWh5BhvnYjpI

Score

10^/10

formbook cr35 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cr35

Decoy

tahirsoemantrigroup.com

hashtagstartup.net

guron.biz

donwalin.com

aslanrefinedhomes.com

quitrobo.com

transcriptionservicesindia.com

mooremedications.com

mahounoniwa.com

lowpricepath.com

xinmanxin.com

maliya-interiors.com

rkprops.com

functionsandfoundations.com

thelenditudenews.com

streetlogic.biz

itaste.xyz

protokolavukatlik.com

reformasmende.com

noahsicecream.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/3740-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4540 set thread context of 3740	4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe	101

System Location Discovery: System Language Discovery 1 TTPs 1 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	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe
4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe
4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe
4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe
4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe
4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe
4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe
4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe
3740	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe
3740	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4540 wrote to memory of 1388	4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe	98
PID 4540 wrote to memory of 1388	4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe	98
PID 4540 wrote to memory of 1388	4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe	98
PID 4540 wrote to memory of 3676	4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe	99
PID 4540 wrote to memory of 3676	4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe	99
PID 4540 wrote to memory of 3676	4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe	99
PID 4540 wrote to memory of 1932	4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe	100
PID 4540 wrote to memory of 1932	4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe	100
PID 4540 wrote to memory of 1932	4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe	100
PID 4540 wrote to memory of 3740	4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe	101
PID 4540 wrote to memory of 3740	4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe	101
PID 4540 wrote to memory of 3740	4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe	101
PID 4540 wrote to memory of 3740	4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe	101
PID 4540 wrote to memory of 3740	4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe	101
PID 4540 wrote to memory of 3740	4540	de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe	101

C:\Users\Admin\AppData\Local\Temp\de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe
"C:\Users\Admin\AppData\Local\Temp\de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4540
- C:\Users\Admin\AppData\Local\Temp\de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe
  "C:\Users\Admin\AppData\Local\Temp\de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe"
  2⤵
  PID:1388
- C:\Users\Admin\AppData\Local\Temp\de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe
  "C:\Users\Admin\AppData\Local\Temp\de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe"
  2⤵
  PID:3676
- C:\Users\Admin\AppData\Local\Temp\de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe
  "C:\Users\Admin\AppData\Local\Temp\de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe"
  2⤵
  PID:1932
- C:\Users\Admin\AppData\Local\Temp\de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe
  "C:\Users\Admin\AppData\Local\Temp\de475f6f80edfef837511633dc86a0115456c42a8c8469a0a8e304dc7dc17379.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3740-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3740-15-0x0000000001270000-0x00000000015BA000-memory.dmp

Filesize
3.3MB

Download
memory/4540-6-0x00000000063F0000-0x00000000067CA000-memory.dmp

Filesize
3.9MB

Download
memory/4540-3-0x0000000004DB0000-0x0000000004E42000-memory.dmp

Filesize
584KB

Download
memory/4540-5-0x0000000074560000-0x0000000074D10000-memory.dmp

Filesize
7.7MB

Download
memory/4540-4-0x0000000004EC0000-0x0000000004ECA000-memory.dmp

Filesize
40KB

Download
memory/4540-0-0x000000007456E000-0x000000007456F000-memory.dmp

Filesize
4KB

Download
memory/4540-7-0x0000000006170000-0x000000000617C000-memory.dmp

Filesize
48KB

Download
memory/4540-8-0x000000007456E000-0x000000007456F000-memory.dmp

Filesize
4KB

Download
memory/4540-9-0x0000000074560000-0x0000000074D10000-memory.dmp

Filesize
7.7MB

Download
memory/4540-10-0x00000000068D0000-0x000000000696C000-memory.dmp

Filesize
624KB

Download
memory/4540-11-0x00000000069C0000-0x0000000006A14000-memory.dmp

Filesize
336KB

Download
memory/4540-2-0x0000000005360000-0x0000000005904000-memory.dmp

Filesize
5.6MB

Download
memory/4540-14-0x0000000074560000-0x0000000074D10000-memory.dmp

Filesize
7.7MB

Download
memory/4540-1-0x0000000000250000-0x0000000000316000-memory.dmp

Filesize
792KB

Download

Analysis

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