formbook | 94556864decf10552fa3c93ff21180f06edacc3f57168eb4e3d8c1ec872b7ef1

General

Target

quhthbz.exe
Size

5KB
MD5

76d62afbd866bb7c381a22dc2996bd05
SHA1

912911b232c8d942231d3935d0e45badb7006e75
SHA256

20aab90003cd0daf3e9f0cf54d2ab45ff981a72cfe2bdd73e962b9d5e3af7c43
SHA512

1ddc33c8e47886e1a7abf878011a0d8a4f33655a9a3ce5cfdc7c51a6aef46acda8bd22d9ea1b2572660e9d37dc3af9ce09c0cd11cd62d963c8bf0bc39dc876e6
SSDEEP

48:vpgJ0Gfhxk9RncozPLOFYTLOFY1MVMkQt8+l6XU6vLUYmRarMy:BZzsozPSFaSFmjt8o6XU6TUVRar

Score

10^/10

formbook je14 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

je14

Decoy

innervisionbuildings.com

theenergysocialite.com

565548.com

panghr.com

onlyonesolutions.com

stjohnzone6.com

cnotes.rest

helfeb.online

xixi-s-inc.club

easilyentered.com

theshopx.store

mrclean-ac.com

miamibeachwateradventures.com

jpearce.co.uk

seseragi-bunkou.com

minimaddie.com

commbank-help-849c3.com

segohandelsonderneming.com

namthanhreal.com

fototerapi.online

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral3/memory/760-1-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral3/memory/760-4-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral3/memory/3000-10-0x0000000000310000-0x000000000033F000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2948	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1736 set thread context of 760	1736	quhthbz.exe	30
PID 760 set thread context of 1212	760	quhthbz.exe	21
PID 3000 set thread context of 1212	3000	explorer.exe	21

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	quhthbz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
760	quhthbz.exe
760	quhthbz.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe
3000	explorer.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1736	quhthbz.exe
760	quhthbz.exe
760	quhthbz.exe
760	quhthbz.exe
3000	explorer.exe
3000	explorer.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	760	quhthbz.exe
Token: SeDebugPrivilege	3000	explorer.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 760	1736	quhthbz.exe	30
PID 1736 wrote to memory of 760	1736	quhthbz.exe	30
PID 1736 wrote to memory of 760	1736	quhthbz.exe	30
PID 1736 wrote to memory of 760	1736	quhthbz.exe	30
PID 1736 wrote to memory of 760	1736	quhthbz.exe	30
PID 1212 wrote to memory of 3000	1212	Explorer.EXE	31
PID 1212 wrote to memory of 3000	1212	Explorer.EXE	31
PID 1212 wrote to memory of 3000	1212	Explorer.EXE	31
PID 1212 wrote to memory of 3000	1212	Explorer.EXE	31
PID 3000 wrote to memory of 2948	3000	explorer.exe	32
PID 3000 wrote to memory of 2948	3000	explorer.exe	32
PID 3000 wrote to memory of 2948	3000	explorer.exe	32
PID 3000 wrote to memory of 2948	3000	explorer.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1212
- C:\Users\Admin\AppData\Local\Temp\quhthbz.exe
  "C:\Users\Admin\AppData\Local\Temp\quhthbz.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1736
- - C:\Users\Admin\AppData\Local\Temp\quhthbz.exe
    "C:\Users\Admin\AppData\Local\Temp\quhthbz.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:760
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.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:3000
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\quhthbz.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2948

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

Loading Replay Monitor...

Downloads

memory/760-1-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/760-2-0x0000000000A00000-0x0000000000D03000-memory.dmp

Filesize
3.0MB

Download
memory/760-5-0x0000000000180000-0x0000000000194000-memory.dmp

Filesize
80KB

Download
memory/760-4-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1212-6-0x00000000029B0000-0x0000000002AB0000-memory.dmp

Filesize
1024KB

Download
memory/1212-7-0x0000000006650000-0x000000000676B000-memory.dmp

Filesize
1.1MB

Download
memory/1212-11-0x0000000006650000-0x000000000676B000-memory.dmp

Filesize
1.1MB

Download
memory/1736-0-0x00000000001C0000-0x00000000001C2000-memory.dmp

Filesize
8KB

Download
memory/3000-8-0x0000000000070000-0x00000000002F1000-memory.dmp

Filesize
2.5MB

Download
memory/3000-9-0x0000000000070000-0x00000000002F1000-memory.dmp

Filesize
2.5MB

Download
memory/3000-10-0x0000000000310000-0x000000000033F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing