formbook | b4e6a4b502e40ac294cfe0f86f520314b3c4381b79baf65fc5fe5da03c8cb1ed

General

Target

b4e6a4b502e40ac294cfe0f86f520314b3c4381b79baf65fc5fe5da03c8cb1edN.exe
Size

1.1MB
MD5

dfbd2a4af285c0ee341b78b5b3eac6e0
SHA1

5af29dab1bf9765a516dd1fd1ced52646b7d788e
SHA256

b4e6a4b502e40ac294cfe0f86f520314b3c4381b79baf65fc5fe5da03c8cb1ed
SHA512

1e2f252310ab7e05664c7cce8d02fcdd94ca1853975d8e3b41d8d18880c7cdfe8e945156590988cec0c7b6c722dcba8e65a7fc2fd6796d07ba5ef7ef8afeb8a6
SSDEEP

24576:uRmJkcoQricOIQxiZY1iaCAvpsYs0b+VXcZv:7JZoQrbTFZY1iaCATs02XW

Score

10^/10

formbook jd21 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

jd21

Decoy

bankownedproperties-0.bond

slab-leak-repair-74697.bond

tvtwenty20sr.top

scw-iot.net

circusenergy.online

030002787.xyz

propertiesforrentus11.bond

defi-banksystem.online

gkbet168.net

joycasino-ed46.top

sctttc-or.top

borghardt.xyz

therealtorpeddler.info

macexpress.online

bobbyharvey.store

dating-dd-de.info

thetrue.one

alqahtani.site

mahlubini.africa

truck-driver-jobs-42274.bond

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/4632-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4632-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4988-12-0x0000000000C20000-0x0000000000C4F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3200 set thread context of 4632	3200	b4e6a4b502e40ac294cfe0f86f520314b3c4381b79baf65fc5fe5da03c8cb1edN.exe	84
PID 4632 set thread context of 3524	4632	svchost.exe	56
PID 4988 set thread context of 3524	4988	raserver.exe	56

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	b4e6a4b502e40ac294cfe0f86f520314b3c4381b79baf65fc5fe5da03c8cb1edN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	raserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 50 IoCs

pid	Process
4632	svchost.exe
4632	svchost.exe
4632	svchost.exe
4632	svchost.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe
4988	raserver.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
3200	b4e6a4b502e40ac294cfe0f86f520314b3c4381b79baf65fc5fe5da03c8cb1edN.exe
4632	svchost.exe
4632	svchost.exe
4632	svchost.exe
4988	raserver.exe
4988	raserver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4632	svchost.exe
Token: SeDebugPrivilege	4988	raserver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3200 wrote to memory of 4632	3200	b4e6a4b502e40ac294cfe0f86f520314b3c4381b79baf65fc5fe5da03c8cb1edN.exe	84
PID 3200 wrote to memory of 4632	3200	b4e6a4b502e40ac294cfe0f86f520314b3c4381b79baf65fc5fe5da03c8cb1edN.exe	84
PID 3200 wrote to memory of 4632	3200	b4e6a4b502e40ac294cfe0f86f520314b3c4381b79baf65fc5fe5da03c8cb1edN.exe	84
PID 3200 wrote to memory of 4632	3200	b4e6a4b502e40ac294cfe0f86f520314b3c4381b79baf65fc5fe5da03c8cb1edN.exe	84
PID 3524 wrote to memory of 4988	3524	Explorer.EXE	90
PID 3524 wrote to memory of 4988	3524	Explorer.EXE	90
PID 3524 wrote to memory of 4988	3524	Explorer.EXE	90
PID 4988 wrote to memory of 2752	4988	raserver.exe	91
PID 4988 wrote to memory of 2752	4988	raserver.exe	91
PID 4988 wrote to memory of 2752	4988	raserver.exe	91

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3524
- C:\Users\Admin\AppData\Local\Temp\b4e6a4b502e40ac294cfe0f86f520314b3c4381b79baf65fc5fe5da03c8cb1edN.exe
  "C:\Users\Admin\AppData\Local\Temp\b4e6a4b502e40ac294cfe0f86f520314b3c4381b79baf65fc5fe5da03c8cb1edN.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:3200
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\b4e6a4b502e40ac294cfe0f86f520314b3c4381b79baf65fc5fe5da03c8cb1edN.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4632
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:456
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:3760
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:3532
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4252
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1596
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4988
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

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

Replay Monitor

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Downloads

memory/3200-2-0x00000000043A0000-0x00000000047A0000-memory.dmp

Filesize
4.0MB

Download
memory/3524-13-0x0000000008110000-0x00000000081E0000-memory.dmp

Filesize
832KB

Download
memory/3524-20-0x00000000082E0000-0x00000000083B2000-memory.dmp

Filesize
840KB

Download
memory/3524-18-0x00000000082E0000-0x00000000083B2000-memory.dmp

Filesize
840KB

Download
memory/3524-17-0x00000000082E0000-0x00000000083B2000-memory.dmp

Filesize
840KB

Download
memory/3524-8-0x0000000008110000-0x00000000081E0000-memory.dmp

Filesize
832KB

Download
memory/4632-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4632-7-0x00000000009D0000-0x00000000009E5000-memory.dmp

Filesize
84KB

Download
memory/4632-4-0x0000000001000000-0x000000000134A000-memory.dmp

Filesize
3.3MB

Download
memory/4632-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4988-10-0x0000000000DE0000-0x0000000000DFF000-memory.dmp

Filesize
124KB

Download
memory/4988-12-0x0000000000C20000-0x0000000000C4F000-memory.dmp

Filesize
188KB

Download
memory/4988-11-0x0000000000DE0000-0x0000000000DFF000-memory.dmp

Filesize
124KB

Download

Analysis

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