formbook | 65ea5f1ec926c56de31055f613a1bb09df0ba94228a02e5eea4e54f5f12b6bab

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-01-2025 12:59

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General

Target

Invoice for AWB charges.exe
Size

850KB
MD5

fce27267d3d20b4f8c4900f02085c640
SHA1

d3ff8bf9a8c434c478f33a05d9fb9d5dc58cb2a5
SHA256

65ea5f1ec926c56de31055f613a1bb09df0ba94228a02e5eea4e54f5f12b6bab
SHA512

3ce03e7a9d1da1b67875bdf52867e305bfbef9d39fdabd204cc23486e7bb808e13f97fb7278b9f8d9c25b508f0f0fdff4a995899c101b90725a45b45240b3b90
SSDEEP

12288:rLkcoxg7v3qnC11ErwIhh0F4qwUgUny5QLuYa5kPiUA/XrRcHXRvEYtlJ:ffmMv6Ckr7Mny5QLVip9CvEYnJ

Score

10^/10

formbook cl21 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cl21

Decoy

0001.shop

earch-parttimejobs.today

are888.top

akanhaunthipped.shop

othing-heyu.xyz

cadvirsor.net

nclanalae.shop

lectric-cars-mexico.today

oxj-question.xyz

ersonalloanoffers.today

ersonalloans-fo54-fo37.click

verybody-ewfx.xyz

ercuremontauban.media

azilimdunyam.net

airs-clinicato.today

wiftsscend.click

ertainly-jbws.xyz

8xeng.app

damekadmitageable.cfd

ollapsedec.shop

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
behavioral2/memory/4636-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4636-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4636-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3728-20-0x0000000001080000-0x00000000010AF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 772 set thread context of 4636	772	Invoice for AWB charges.exe	82
PID 4636 set thread context of 3320	4636	svchost.exe	55
PID 4636 set thread context of 3320	4636	svchost.exe	55
PID 3728 set thread context of 3320	3728	svchost.exe	55

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	Invoice for AWB charges.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
4636	svchost.exe
4636	svchost.exe
4636	svchost.exe
4636	svchost.exe
4636	svchost.exe
4636	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe
3728	svchost.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
772	Invoice for AWB charges.exe
4636	svchost.exe
4636	svchost.exe
4636	svchost.exe
4636	svchost.exe
3728	svchost.exe
3728	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4636	svchost.exe
Token: SeDebugPrivilege	3728	svchost.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
772	Invoice for AWB charges.exe
772	Invoice for AWB charges.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
772	Invoice for AWB charges.exe
772	Invoice for AWB charges.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 772 wrote to memory of 4636	772	Invoice for AWB charges.exe	82
PID 772 wrote to memory of 4636	772	Invoice for AWB charges.exe	82
PID 772 wrote to memory of 4636	772	Invoice for AWB charges.exe	82
PID 772 wrote to memory of 4636	772	Invoice for AWB charges.exe	82
PID 3320 wrote to memory of 3728	3320	Explorer.EXE	85
PID 3320 wrote to memory of 3728	3320	Explorer.EXE	85
PID 3320 wrote to memory of 3728	3320	Explorer.EXE	85
PID 3728 wrote to memory of 4560	3728	svchost.exe	86
PID 3728 wrote to memory of 4560	3728	svchost.exe	86
PID 3728 wrote to memory of 4560	3728	svchost.exe	86

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3320
- C:\Users\Admin\AppData\Local\Temp\Invoice for AWB charges.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice for AWB charges.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:772
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\Invoice for AWB charges.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4636
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2368
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:424
- 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:3728
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4560

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/772-5-0x0000000001A80000-0x0000000001A84000-memory.dmp

Filesize
16KB

Download
memory/3320-16-0x0000000007BB0000-0x0000000007CC3000-memory.dmp

Filesize
1.1MB

Download
memory/3320-27-0x0000000007CD0000-0x0000000007DEC000-memory.dmp

Filesize
1.1MB

Download
memory/3320-25-0x0000000007CD0000-0x0000000007DEC000-memory.dmp

Filesize
1.1MB

Download
memory/3320-24-0x0000000007CD0000-0x0000000007DEC000-memory.dmp

Filesize
1.1MB

Download
memory/3320-11-0x0000000007BB0000-0x0000000007CC3000-memory.dmp

Filesize
1.1MB

Download
memory/3320-21-0x00000000027B0000-0x000000000289D000-memory.dmp

Filesize
948KB

Download
memory/3320-15-0x00000000027B0000-0x000000000289D000-memory.dmp

Filesize
948KB

Download
memory/3728-20-0x0000000001080000-0x00000000010AF000-memory.dmp

Filesize
188KB

Download
memory/3728-19-0x00000000007E0000-0x00000000007EE000-memory.dmp

Filesize
56KB

Download
memory/3728-17-0x00000000007E0000-0x00000000007EE000-memory.dmp

Filesize
56KB

Download
memory/4636-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4636-14-0x00000000033E0000-0x00000000033F4000-memory.dmp

Filesize
80KB

Download
memory/4636-10-0x0000000001AE0000-0x0000000001AF4000-memory.dmp

Filesize
80KB

Download
memory/4636-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4636-7-0x0000000001600000-0x000000000194A000-memory.dmp

Filesize
3.3MB

Download
memory/4636-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download