formbook | e72fe7e257f4980cd501a7403aa116820d2ac1e176a28d61a9374df59f98d16d

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
07-11-2022 15:02

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General

Target

jetssofftr543.exe
Size

221KB
MD5

c7c81ed3f21ca0f92316446946656c39
SHA1

d1a3c9c4a1ac579184967f604193f8c1f1c41693
SHA256

aad5593f8b48c2e45fb2344146ac1a16e79addf9fe859cf74c005b8c0b5bc452
SHA512

38b49646496bdaed201b855b0fe6fa5783102a780ff8a55bfa97a37cf53ccc9ab6cd36a234ae6bab1e488c741bc42879fe96a32aff3ed7906653d9e78ae25121
SSDEEP

6144:MEa0NUspTCne0ehbO4+MfVzDPdTG3xVzu5W+3uf:XUsp2epf+mT6VzaK

Score

10^/10

formbook je14 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 payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/4220-139-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4220-144-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/5028-147-0x00000000003C0000-0x00000000003EF000-memory.dmp	formbook
behavioral2/memory/5028-151-0x00000000003C0000-0x00000000003EF000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

pid	Process
1912	mnfvgv.exe
4220	mnfvgv.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1912 set thread context of 4220	1912	mnfvgv.exe	81
PID 4220 set thread context of 2720	4220	mnfvgv.exe	19
PID 5028 set thread context of 2720	5028	msiexec.exe	19

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 58 IoCs

pid	Process
4220	mnfvgv.exe
4220	mnfvgv.exe
4220	mnfvgv.exe
4220	mnfvgv.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe
5028	msiexec.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2720	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1912	mnfvgv.exe
4220	mnfvgv.exe
4220	mnfvgv.exe
4220	mnfvgv.exe
5028	msiexec.exe
5028	msiexec.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4220	mnfvgv.exe
Token: SeDebugPrivilege	5028	msiexec.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 5040 wrote to memory of 1912	5040	jetssofftr543.exe	80
PID 5040 wrote to memory of 1912	5040	jetssofftr543.exe	80
PID 5040 wrote to memory of 1912	5040	jetssofftr543.exe	80
PID 1912 wrote to memory of 4220	1912	mnfvgv.exe	81
PID 1912 wrote to memory of 4220	1912	mnfvgv.exe	81
PID 1912 wrote to memory of 4220	1912	mnfvgv.exe	81
PID 1912 wrote to memory of 4220	1912	mnfvgv.exe	81
PID 2720 wrote to memory of 5028	2720	Explorer.EXE	82
PID 2720 wrote to memory of 5028	2720	Explorer.EXE	82
PID 2720 wrote to memory of 5028	2720	Explorer.EXE	82
PID 5028 wrote to memory of 456	5028	msiexec.exe	83
PID 5028 wrote to memory of 456	5028	msiexec.exe	83
PID 5028 wrote to memory of 456	5028	msiexec.exe	83

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2720
- C:\Users\Admin\AppData\Local\Temp\jetssofftr543.exe
  "C:\Users\Admin\AppData\Local\Temp\jetssofftr543.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5040
- - C:\Users\Admin\AppData\Local\Temp\mnfvgv.exe
    "C:\Users\Admin\AppData\Local\Temp\mnfvgv.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:1912
  - - C:\Users\Admin\AppData\Local\Temp\mnfvgv.exe
      "C:\Users\Admin\AppData\Local\Temp\mnfvgv.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:4220
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5028
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\mnfvgv.exe"
    3⤵
    PID:456

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\mnfvgv.exe

Filesize
5KB

MD5
3d4499d3223b637035a9ea797bc04a9b

SHA1
979e0f0f542f473406c121187ba0d2833da5f3ce

SHA256
e8ac6c1d309e48d85d535d7b14cd44cfa2228fb5b5db89365320daa112fcb799

SHA512
581b2daf1591afb5125ff4bb79159ac22870a40a13927bd6f0cd3dac6753b3a3227003bead69afdb0fa59cfabc6dfc051f287d58fca87ccbd07c7054a041fbba

Download Submit
C:\Users\Admin\AppData\Local\Temp\mnfvgv.exe

Filesize
5KB

MD5
3d4499d3223b637035a9ea797bc04a9b

SHA1
979e0f0f542f473406c121187ba0d2833da5f3ce

SHA256
e8ac6c1d309e48d85d535d7b14cd44cfa2228fb5b5db89365320daa112fcb799

SHA512
581b2daf1591afb5125ff4bb79159ac22870a40a13927bd6f0cd3dac6753b3a3227003bead69afdb0fa59cfabc6dfc051f287d58fca87ccbd07c7054a041fbba

Download Submit
C:\Users\Admin\AppData\Local\Temp\mnfvgv.exe

Filesize
5KB

MD5
3d4499d3223b637035a9ea797bc04a9b

SHA1
979e0f0f542f473406c121187ba0d2833da5f3ce

SHA256
e8ac6c1d309e48d85d535d7b14cd44cfa2228fb5b5db89365320daa112fcb799

SHA512
581b2daf1591afb5125ff4bb79159ac22870a40a13927bd6f0cd3dac6753b3a3227003bead69afdb0fa59cfabc6dfc051f287d58fca87ccbd07c7054a041fbba

Download Submit
C:\Users\Admin\AppData\Local\Temp\rievdf.w

Filesize
5KB

MD5
137b470cf175ff012ce04ab666292bb9

SHA1
a209a552395357ad7eed4d1fd11e79af8de125a0

SHA256
5fb54480c1a5ea91ed623fdc7301c8d09c8d7c8dd55de4a4b9b5357586760f3e

SHA512
0852a552f77146847d39a24e8dd30f78ffa210d07942941478133cc5ddb98544a12b15c9d25f85d78859327af4dcc7204b8955c620583a90b26b87d0db037b12

Download Submit
C:\Users\Admin\AppData\Local\Temp\xynrjchc.oe

Filesize
185KB

MD5
8b391f4eea0c400d8a2dab4b4d7539b3

SHA1
8a5efe608e38f6dd2dda851d9bc442a0150112af

SHA256
3f4063d573ecd85272fc92547af4e7d8406d192f4e67bc62c846172e9e4ee14b

SHA512
f9e3aa22e625dadcfc6a45e14568a638c42bfc2a9e1685c2ad5281f629594c73d12618e1c86c2cccfd99d4571a9bfa2471051f6de1fe998f97d8d7d5b64c83e6

Download Submit
memory/2720-142-0x00000000030C0000-0x000000000323F000-memory.dmp

Filesize
1.5MB

Download
memory/2720-152-0x0000000007F80000-0x0000000008050000-memory.dmp

Filesize
832KB

Download
memory/2720-150-0x0000000007F80000-0x0000000008050000-memory.dmp

Filesize
832KB

Download
memory/4220-144-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4220-141-0x00000000009D0000-0x00000000009E4000-memory.dmp

Filesize
80KB

Download
memory/4220-140-0x0000000000A10000-0x0000000000D5A000-memory.dmp

Filesize
3.3MB

Download
memory/4220-139-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5028-147-0x00000000003C0000-0x00000000003EF000-memory.dmp

Filesize
188KB

Download
memory/5028-146-0x0000000000880000-0x0000000000892000-memory.dmp

Filesize
72KB

Download
memory/5028-148-0x0000000002480000-0x00000000027CA000-memory.dmp

Filesize
3.3MB

Download
memory/5028-149-0x0000000002320000-0x00000000023B3000-memory.dmp

Filesize
588KB

Download
memory/5028-151-0x00000000003C0000-0x00000000003EF000-memory.dmp

Filesize
188KB

Download