formbook | 4002f5e73fb57305b475567dc9b874aab9219e8d105d73ae80c038c4358ee854

General

Target

44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe
Size

684KB
MD5

180d0f081c8d2d4cbba592f2c6ef28c6
SHA1

12e23e366ef8468131638244a0482a79bccfd839
SHA256

44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2
SHA512

6aca9e9229f72bb3e5db249f63cea1276ec837ada8b26aed739d2d9ba314c79a8dfc57518b1e5892bb89708e2012b7dc02f31535a8798f4c73e3526a8ce6abf5
SSDEEP

12288:ht1cBZVdEkJqCV5GMqQ5l9b1druq+Vlt3Rm7GMQKF3NGXoi1+rPd44zMWXmoK6:hc1CCVTtlHKt3whPFdG4cwMeTK6

Score

10^/10

formbook k02d discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

k02d

Decoy

thenewworlddiscoveryclub.com

llzwfe.xyz

iymanlanka.com

woojunepark.com

holwetheleam.com

roylc.xyz

squirmed58yum.com

quzupuu.website

laprxa.com

avanlahe.com

sertseks.net

wfows.xyz

ny5622.com

strictlyvulgar.com

modabet801.com

jerryzconsulting.com

idolboat.com

decorbydenielenicol.design

clients-sfr.com

voicesafricamailings.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
behavioral1/memory/3012-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2360 set thread context of 3012	2360	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe	31

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2184	3012	WerFault.exe	31

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	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2360	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe
2360	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe
2360	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe
2360	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe
2360	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe
2360	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe
2360	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2360	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 3012	2360	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe	31
PID 2360 wrote to memory of 3012	2360	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe	31
PID 2360 wrote to memory of 3012	2360	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe	31
PID 2360 wrote to memory of 3012	2360	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe	31
PID 2360 wrote to memory of 3012	2360	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe	31
PID 2360 wrote to memory of 3012	2360	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe	31
PID 2360 wrote to memory of 3012	2360	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe	31
PID 3012 wrote to memory of 2184	3012	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe	32
PID 3012 wrote to memory of 2184	3012	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe	32
PID 3012 wrote to memory of 2184	3012	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe	32
PID 3012 wrote to memory of 2184	3012	44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe	32

C:\Users\Admin\AppData\Local\Temp\44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe
"C:\Users\Admin\AppData\Local\Temp\44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Users\Admin\AppData\Local\Temp\44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe
  "C:\Users\Admin\AppData\Local\Temp\44ad61b91dc10bd9543918779a57235081fad13eada8330d03994c660be3c9e2.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3012
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3012 -s 36
    3⤵
    - Program crash
    PID:2184

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

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Downloads

memory/2360-6-0x0000000005EE0000-0x0000000005F72000-memory.dmp

Filesize
584KB

Download
memory/2360-1-0x00000000002A0000-0x000000000034E000-memory.dmp

Filesize
696KB

Download
memory/2360-2-0x00000000746F0000-0x0000000074DDE000-memory.dmp

Filesize
6.9MB

Download
memory/2360-3-0x00000000003C0000-0x00000000003D6000-memory.dmp

Filesize
88KB

Download
memory/2360-4-0x00000000746FE000-0x00000000746FF000-memory.dmp

Filesize
4KB

Download
memory/2360-5-0x00000000746F0000-0x0000000074DDE000-memory.dmp

Filesize
6.9MB

Download
memory/2360-0-0x00000000746FE000-0x00000000746FF000-memory.dmp

Filesize
4KB

Download
memory/2360-7-0x00000000009D0000-0x0000000000A04000-memory.dmp

Filesize
208KB

Download
memory/2360-14-0x00000000746F0000-0x0000000074DDE000-memory.dmp

Filesize
6.9MB

Download
memory/3012-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3012-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3012-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3012-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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