formbook | 6febe41ce943833972b3806d774a413eeda3b40d07487888a873aa20054df6c2

Analysis

max time kernel
147s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2025 01:32

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General

Target

b684a4d4ed1ab38535abe13ad1c41bb03bd742ec93d3384ca382ca7b146fb3f2.exe
Size

845KB
MD5

a5cb15ed7122efdebf1f6c293e1bebce
SHA1

78bb4a292d3e063cc5a771516a68016fef978996
SHA256

b684a4d4ed1ab38535abe13ad1c41bb03bd742ec93d3384ca382ca7b146fb3f2
SHA512

01f2a7e9a5d8029345ae5ff6642feef4e7ae9b307f79487a38cb9ae5cbdc85096a98a4537bf4938704796d7514cecc7b4ad811f34b07d1cb6ce40d09c9fc34e0
SSDEEP

12288:rLkcoxg7v3qnC11ErwIhh0F4qwUgUny5QLCCcTcZfmrjHdPu/VA3pAltdNmDTg29:ffmMv6Ckr7Mny5QLHchrjRGVAq7mfv

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 3 IoCs

rat

resource	yara_rule
behavioral2/memory/3504-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3504-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3528-14-0x00000000010F0000-0x000000000111F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4144 set thread context of 3504	4144	b684a4d4ed1ab38535abe13ad1c41bb03bd742ec93d3384ca382ca7b146fb3f2.exe	83
PID 3504 set thread context of 3496	3504	svchost.exe	56
PID 3528 set thread context of 3496	3528	NETSTAT.EXE	56

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	NETSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b684a4d4ed1ab38535abe13ad1c41bb03bd742ec93d3384ca382ca7b146fb3f2.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
3528	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
3504	svchost.exe
3504	svchost.exe
3504	svchost.exe
3504	svchost.exe
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE
3528	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4144	b684a4d4ed1ab38535abe13ad1c41bb03bd742ec93d3384ca382ca7b146fb3f2.exe
3504	svchost.exe
3504	svchost.exe
3504	svchost.exe
3528	NETSTAT.EXE
3528	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3504	svchost.exe
Token: SeDebugPrivilege	3528	NETSTAT.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4144	b684a4d4ed1ab38535abe13ad1c41bb03bd742ec93d3384ca382ca7b146fb3f2.exe
4144	b684a4d4ed1ab38535abe13ad1c41bb03bd742ec93d3384ca382ca7b146fb3f2.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
4144	b684a4d4ed1ab38535abe13ad1c41bb03bd742ec93d3384ca382ca7b146fb3f2.exe
4144	b684a4d4ed1ab38535abe13ad1c41bb03bd742ec93d3384ca382ca7b146fb3f2.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4144 wrote to memory of 3504	4144	b684a4d4ed1ab38535abe13ad1c41bb03bd742ec93d3384ca382ca7b146fb3f2.exe	83
PID 4144 wrote to memory of 3504	4144	b684a4d4ed1ab38535abe13ad1c41bb03bd742ec93d3384ca382ca7b146fb3f2.exe	83
PID 4144 wrote to memory of 3504	4144	b684a4d4ed1ab38535abe13ad1c41bb03bd742ec93d3384ca382ca7b146fb3f2.exe	83
PID 4144 wrote to memory of 3504	4144	b684a4d4ed1ab38535abe13ad1c41bb03bd742ec93d3384ca382ca7b146fb3f2.exe	83
PID 3496 wrote to memory of 3528	3496	Explorer.EXE	84
PID 3496 wrote to memory of 3528	3496	Explorer.EXE	84
PID 3496 wrote to memory of 3528	3496	Explorer.EXE	84
PID 3528 wrote to memory of 3548	3528	NETSTAT.EXE	86
PID 3528 wrote to memory of 3548	3528	NETSTAT.EXE	86
PID 3528 wrote to memory of 3548	3528	NETSTAT.EXE	86

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3496
- C:\Users\Admin\AppData\Local\Temp\b684a4d4ed1ab38535abe13ad1c41bb03bd742ec93d3384ca382ca7b146fb3f2.exe
  "C:\Users\Admin\AppData\Local\Temp\b684a4d4ed1ab38535abe13ad1c41bb03bd742ec93d3384ca382ca7b146fb3f2.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:4144
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\b684a4d4ed1ab38535abe13ad1c41bb03bd742ec93d3384ca382ca7b146fb3f2.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3504
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3528
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3548

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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/3496-11-0x0000000002C70000-0x0000000002D76000-memory.dmp

Filesize
1.0MB

Download
memory/3496-18-0x0000000002EA0000-0x0000000002F73000-memory.dmp

Filesize
844KB

Download
memory/3496-19-0x0000000002EA0000-0x0000000002F73000-memory.dmp

Filesize
844KB

Download
memory/3496-21-0x0000000002EA0000-0x0000000002F73000-memory.dmp

Filesize
844KB

Download
memory/3504-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3504-7-0x0000000001500000-0x000000000184A000-memory.dmp

Filesize
3.3MB

Download
memory/3504-10-0x0000000001850000-0x0000000001864000-memory.dmp

Filesize
80KB

Download
memory/3504-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3528-13-0x0000000000140000-0x000000000014B000-memory.dmp

Filesize
44KB

Download
memory/3528-12-0x0000000000140000-0x000000000014B000-memory.dmp

Filesize
44KB

Download
memory/3528-14-0x00000000010F0000-0x000000000111F000-memory.dmp

Filesize
188KB

Download
memory/4144-5-0x0000000004060000-0x0000000004064000-memory.dmp

Filesize
16KB

Download