formbook | 633ccb020bf31ee6dc2d876b157822ebdac8e73f7da640eb58102e6d233cbf2b

Analysis

max time kernel
149s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
12/10/2023, 15:45

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General

Target

633ccb020bf31ee6dc2d876b157822ebdac8e73f7da640eb58102e6d233cbf2b_JC.exe
Size

394KB
MD5

3d7420d1cf88e1ffc6d0dd85314fbfb5
SHA1

00af90a66e1be8974ef99d2630e905213aa7548f
SHA256

633ccb020bf31ee6dc2d876b157822ebdac8e73f7da640eb58102e6d233cbf2b
SHA512

20e0a4bb331be0004c940875346394bfcb6f387dbf3800859512dd2ef5864b89d5d0d39e1856379b759f35a43756b95be4d32fe574cddb00dfb9a9d1cb47f761
SSDEEP

6144:hYa6KmnIocXHUsP93EQNjYDZiJL+JFX+z/Fpv9QQWCHtec1WtvpDi:hY0aIFJ2MkX+HvGCCTi

Score

10^/10

formbook ds19 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ds19

Decoy

pribit-92.com

wrist-couture.com

alanka.company

uffitgvr.click

bwtsatotravel.com

anpmarketinginc.com

startupsvibes.com

shearabia.com

sayemail5.store

solsticeinstitute.com

perfectholidaydeals.com

xfitness.life

mmbs-ad.com

jacodile.com

hjpolastudio.com

healuu.com

agtwer.homes

installationschampions.info

bettys70th.com

sustainable-re.com

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/4424-7-0x0000000000600000-0x000000000062F000-memory.dmp	formbook
behavioral2/memory/4424-13-0x0000000000600000-0x000000000062F000-memory.dmp	formbook
behavioral2/memory/3900-19-0x0000000000370000-0x000000000039F000-memory.dmp	formbook
behavioral2/memory/3900-21-0x0000000000370000-0x000000000039F000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

pid	Process
2848	zzwxddd.exe
4424	zzwxddd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2848 set thread context of 4424	2848	zzwxddd.exe	83
PID 4424 set thread context of 3156	4424	zzwxddd.exe	45
PID 3900 set thread context of 3156	3900	rundll32.exe	45

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
4424	zzwxddd.exe
4424	zzwxddd.exe
4424	zzwxddd.exe
4424	zzwxddd.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3156	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2848	zzwxddd.exe
2848	zzwxddd.exe
4424	zzwxddd.exe
4424	zzwxddd.exe
4424	zzwxddd.exe
3900	rundll32.exe
3900	rundll32.exe

Suspicious use of AdjustPrivilegeToken 14 IoCs

description	pid	Process
Token: SeDebugPrivilege	4424	zzwxddd.exe
Token: SeShutdownPrivilege	3156	Explorer.EXE
Token: SeCreatePagefilePrivilege	3156	Explorer.EXE
Token: SeShutdownPrivilege	3156	Explorer.EXE
Token: SeCreatePagefilePrivilege	3156	Explorer.EXE
Token: SeDebugPrivilege	3900	rundll32.exe
Token: SeShutdownPrivilege	3156	Explorer.EXE
Token: SeCreatePagefilePrivilege	3156	Explorer.EXE
Token: SeShutdownPrivilege	3156	Explorer.EXE
Token: SeCreatePagefilePrivilege	3156	Explorer.EXE
Token: SeShutdownPrivilege	3156	Explorer.EXE
Token: SeCreatePagefilePrivilege	3156	Explorer.EXE
Token: SeShutdownPrivilege	3156	Explorer.EXE
Token: SeCreatePagefilePrivilege	3156	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3156	Explorer.EXE

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 3496 wrote to memory of 2848	3496	633ccb020bf31ee6dc2d876b157822ebdac8e73f7da640eb58102e6d233cbf2b_JC.exe	82
PID 3496 wrote to memory of 2848	3496	633ccb020bf31ee6dc2d876b157822ebdac8e73f7da640eb58102e6d233cbf2b_JC.exe	82
PID 3496 wrote to memory of 2848	3496	633ccb020bf31ee6dc2d876b157822ebdac8e73f7da640eb58102e6d233cbf2b_JC.exe	82
PID 2848 wrote to memory of 4424	2848	zzwxddd.exe	83
PID 2848 wrote to memory of 4424	2848	zzwxddd.exe	83
PID 2848 wrote to memory of 4424	2848	zzwxddd.exe	83
PID 2848 wrote to memory of 4424	2848	zzwxddd.exe	83
PID 3156 wrote to memory of 3900	3156	Explorer.EXE	85
PID 3156 wrote to memory of 3900	3156	Explorer.EXE	85
PID 3156 wrote to memory of 3900	3156	Explorer.EXE	85
PID 3900 wrote to memory of 3440	3900	rundll32.exe	89
PID 3900 wrote to memory of 3440	3900	rundll32.exe	89
PID 3900 wrote to memory of 3440	3900	rundll32.exe	89

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3156
- C:\Users\Admin\AppData\Local\Temp\633ccb020bf31ee6dc2d876b157822ebdac8e73f7da640eb58102e6d233cbf2b_JC.exe
  "C:\Users\Admin\AppData\Local\Temp\633ccb020bf31ee6dc2d876b157822ebdac8e73f7da640eb58102e6d233cbf2b_JC.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3496
- - C:\Users\Admin\AppData\Local\Temp\zzwxddd.exe
    "C:\Users\Admin\AppData\Local\Temp\zzwxddd.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:2848
  - - C:\Users\Admin\AppData\Local\Temp\zzwxddd.exe
      "C:\Users\Admin\AppData\Local\Temp\zzwxddd.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:4424
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3900
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\zzwxddd.exe"
    3⤵
    PID:3440

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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\knkcpcxp.by

Filesize
205KB

MD5
e13bda39272eb319974b3cd73f2ca9c3

SHA1
54e03804758aea72cd624e688b4ec986e63c367e

SHA256
e1d64e1f2ea7b2d437d0a5c16c51eb9ee5af6feed477180ce61e9f159fb7a92b

SHA512
3aa71b89757bb0f17faadfac649c7a62c13638fc2de6c8faa3c9f2af1ee425007fff3003ed9de8c15102217a5d81b78ddc848299684cae38f47e2a67e37c679d

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

Filesize
200KB

MD5
2d2cf14c63da40ea9cc6ad177f1f2a33

SHA1
9c5fe75111ee81d561377cd098d14f4413aa9f57

SHA256
334f8134a8ca8ad40529844df8ea3a30c853c9fb7353193ad279021ee34091cc

SHA512
0edf2e11bb2d07bf58a8d19cde2c785fb0bb198b4e9ff5ab9595ddfef7923620f88604e304423818e5543ea191524c0517a3afe87e9b0aaa8758af2abe01f45a

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

Filesize
200KB

MD5
2d2cf14c63da40ea9cc6ad177f1f2a33

SHA1
9c5fe75111ee81d561377cd098d14f4413aa9f57

SHA256
334f8134a8ca8ad40529844df8ea3a30c853c9fb7353193ad279021ee34091cc

SHA512
0edf2e11bb2d07bf58a8d19cde2c785fb0bb198b4e9ff5ab9595ddfef7923620f88604e304423818e5543ea191524c0517a3afe87e9b0aaa8758af2abe01f45a

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

Filesize
200KB

MD5
2d2cf14c63da40ea9cc6ad177f1f2a33

SHA1
9c5fe75111ee81d561377cd098d14f4413aa9f57

SHA256
334f8134a8ca8ad40529844df8ea3a30c853c9fb7353193ad279021ee34091cc

SHA512
0edf2e11bb2d07bf58a8d19cde2c785fb0bb198b4e9ff5ab9595ddfef7923620f88604e304423818e5543ea191524c0517a3afe87e9b0aaa8758af2abe01f45a

Download Submit
memory/2848-5-0x00000000013B0000-0x00000000013B2000-memory.dmp

Filesize
8KB

Download
memory/3156-60-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-74-0x0000000002790000-0x00000000027A0000-memory.dmp

Filesize
64KB

Download
memory/3156-109-0x00000000027A0000-0x00000000027B0000-memory.dmp

Filesize
64KB

Download
memory/3156-105-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-107-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-106-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-97-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-22-0x0000000008BA0000-0x0000000008CFA000-memory.dmp

Filesize
1.4MB

Download
memory/3156-104-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-25-0x0000000008E00000-0x0000000008ED6000-memory.dmp

Filesize
856KB

Download
memory/3156-26-0x0000000008E00000-0x0000000008ED6000-memory.dmp

Filesize
856KB

Download
memory/3156-28-0x0000000008E00000-0x0000000008ED6000-memory.dmp

Filesize
856KB

Download
memory/3156-31-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-33-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-32-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-34-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-35-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-37-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-39-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-42-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-41-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-36-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-43-0x0000000002A50000-0x0000000002A60000-memory.dmp

Filesize
64KB

Download
memory/3156-44-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-45-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-46-0x0000000002A50000-0x0000000002A60000-memory.dmp

Filesize
64KB

Download
memory/3156-47-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-49-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-51-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-50-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-53-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-64-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-55-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-57-0x0000000002A50000-0x0000000002A60000-memory.dmp

Filesize
64KB

Download
memory/3156-58-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-15-0x0000000008BA0000-0x0000000008CFA000-memory.dmp

Filesize
1.4MB

Download
memory/3156-59-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-61-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-101-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-56-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-62-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-65-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-72-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-73-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-75-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-63-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-76-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-77-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-78-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-79-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-81-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-83-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-84-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-85-0x00000000027A0000-0x00000000027B0000-memory.dmp

Filesize
64KB

Download
memory/3156-86-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-87-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-88-0x00000000027A0000-0x00000000027B0000-memory.dmp

Filesize
64KB

Download
memory/3156-89-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-91-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-93-0x0000000002790000-0x00000000027A0000-memory.dmp

Filesize
64KB

Download
memory/3156-92-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-95-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-98-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-100-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-99-0x00000000027A0000-0x00000000027B0000-memory.dmp

Filesize
64KB

Download
memory/3156-102-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3156-103-0x0000000002A20000-0x0000000002A30000-memory.dmp

Filesize
64KB

Download
memory/3900-16-0x0000000000680000-0x0000000000694000-memory.dmp

Filesize
80KB

Download
memory/3900-24-0x00000000022E0000-0x0000000002373000-memory.dmp

Filesize
588KB

Download
memory/3900-21-0x0000000000370000-0x000000000039F000-memory.dmp

Filesize
188KB

Download
memory/3900-20-0x00000000024A0000-0x00000000027EA000-memory.dmp

Filesize
3.3MB

Download
memory/3900-19-0x0000000000370000-0x000000000039F000-memory.dmp

Filesize
188KB

Download
memory/3900-18-0x0000000000680000-0x0000000000694000-memory.dmp

Filesize
80KB

Download
memory/4424-7-0x0000000000600000-0x000000000062F000-memory.dmp

Filesize
188KB

Download
memory/4424-12-0x0000000000E00000-0x000000000114A000-memory.dmp

Filesize
3.3MB

Download
memory/4424-13-0x0000000000600000-0x000000000062F000-memory.dmp

Filesize
188KB

Download
memory/4424-14-0x0000000000960000-0x0000000000974000-memory.dmp

Filesize
80KB

Download