formbook | e72fe7e257f4980cd501a7403aa116820d2ac1e176a28d61a9374df59f98d16d

General

Target

mnfvgv.exe
Size

5KB
MD5

3d4499d3223b637035a9ea797bc04a9b
SHA1

979e0f0f542f473406c121187ba0d2833da5f3ce
SHA256

e8ac6c1d309e48d85d535d7b14cd44cfa2228fb5b5db89365320daa112fcb799
SHA512

581b2daf1591afb5125ff4bb79159ac22870a40a13927bd6f0cd3dac6753b3a3227003bead69afdb0fa59cfabc6dfc051f287d58fca87ccbd07c7054a041fbba
SSDEEP

48:SA+FMfElrY+fFLdPvh5ZymvnZH3+1gQaFkUmRCZr8BruAUKXRuqS:O+fwrXAenB3+1QFP3ZYDhBx

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 4 IoCs

rat

resource	yara_rule
behavioral3/memory/2360-1-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral3/memory/2360-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral3/memory/2360-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral3/memory/2020-15-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2868	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2396 set thread context of 2360	2396	mnfvgv.exe	30
PID 2360 set thread context of 1208	2360	mnfvgv.exe	21
PID 2360 set thread context of 1208	2360	mnfvgv.exe	21
PID 2020 set thread context of 1208	2020	svchost.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	mnfvgv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2360	mnfvgv.exe
2360	mnfvgv.exe
2360	mnfvgv.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2396	mnfvgv.exe
2360	mnfvgv.exe
2360	mnfvgv.exe
2360	mnfvgv.exe
2360	mnfvgv.exe
2020	svchost.exe
2020	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2360	mnfvgv.exe
Token: SeDebugPrivilege	2020	svchost.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2396 wrote to memory of 2360	2396	mnfvgv.exe	30
PID 2396 wrote to memory of 2360	2396	mnfvgv.exe	30
PID 2396 wrote to memory of 2360	2396	mnfvgv.exe	30
PID 2396 wrote to memory of 2360	2396	mnfvgv.exe	30
PID 2396 wrote to memory of 2360	2396	mnfvgv.exe	30
PID 1208 wrote to memory of 2020	1208	Explorer.EXE	32
PID 1208 wrote to memory of 2020	1208	Explorer.EXE	32
PID 1208 wrote to memory of 2020	1208	Explorer.EXE	32
PID 1208 wrote to memory of 2020	1208	Explorer.EXE	32
PID 2020 wrote to memory of 2868	2020	svchost.exe	33
PID 2020 wrote to memory of 2868	2020	svchost.exe	33
PID 2020 wrote to memory of 2868	2020	svchost.exe	33
PID 2020 wrote to memory of 2868	2020	svchost.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1208
- C:\Users\Admin\AppData\Local\Temp\mnfvgv.exe
  "C:\Users\Admin\AppData\Local\Temp\mnfvgv.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2396
- - C:\Users\Admin\AppData\Local\Temp\mnfvgv.exe
    "C:\Users\Admin\AppData\Local\Temp\mnfvgv.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2360
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\SysWOW64\svchost.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:2020
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\mnfvgv.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2868

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/1208-4-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1208-5-0x0000000004F30000-0x0000000005042000-memory.dmp

Filesize
1.1MB

Download
memory/1208-9-0x00000000051B0000-0x000000000531C000-memory.dmp

Filesize
1.4MB

Download
memory/1208-10-0x0000000004F30000-0x0000000005042000-memory.dmp

Filesize
1.1MB

Download
memory/1208-16-0x00000000051B0000-0x000000000531C000-memory.dmp

Filesize
1.4MB

Download
memory/2020-14-0x0000000000470000-0x0000000000478000-memory.dmp

Filesize
32KB

Download
memory/2020-13-0x0000000000470000-0x0000000000478000-memory.dmp

Filesize
32KB

Download
memory/2020-15-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/2360-1-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2360-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2360-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2396-0-0x0000000000250000-0x0000000000252000-memory.dmp

Filesize
8KB

Download

Analysis

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