formbook | 6d74b352350e3e1d6c9154a6323ec8f5bffab4fb5c01b9f161fe96bc7bec03ab

Analysis

max time kernel
147s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-12-2024 02:41

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General

Target

drreedddd.exe
Size

847KB
MD5

93406d8e4abf5ff12a201760a40fd8ca
SHA1

d0015e7c1f43f5b34525374ce8fcee85d0238a64
SHA256

6d74b352350e3e1d6c9154a6323ec8f5bffab4fb5c01b9f161fe96bc7bec03ab
SHA512

0f69be070a617388504df340889d68c3e32c25b0fc18935c72e1b03b8cf0c4fdcaa2582fa358b3a60b006fdbb2a708c5ae2ab9a9094b689d96f29e79767514ad
SSDEEP

12288:rLkcoxg7v3qnC11ErwIhh0F4qwUgUny5QLIcd+uVY/ZGumADWn0SxG:ffmMv6Ckr7Mny5QLIiYBjZDWn0S0

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/3900-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3900-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3728-16-0x0000000000640000-0x000000000066F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4120 set thread context of 3900	4120	drreedddd.exe	83
PID 3900 set thread context of 3376	3900	svchost.exe	56
PID 3728 set thread context of 3376	3728	rundll32.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	drreedddd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
3900	svchost.exe
3900	svchost.exe
3900	svchost.exe
3900	svchost.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe
3728	rundll32.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4120	drreedddd.exe
3900	svchost.exe
3900	svchost.exe
3900	svchost.exe
3728	rundll32.exe
3728	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3900	svchost.exe
Token: SeDebugPrivilege	3728	rundll32.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4120	drreedddd.exe
4120	drreedddd.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
4120	drreedddd.exe
4120	drreedddd.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4120 wrote to memory of 3900	4120	drreedddd.exe	83
PID 4120 wrote to memory of 3900	4120	drreedddd.exe	83
PID 4120 wrote to memory of 3900	4120	drreedddd.exe	83
PID 4120 wrote to memory of 3900	4120	drreedddd.exe	83
PID 3376 wrote to memory of 3728	3376	Explorer.EXE	84
PID 3376 wrote to memory of 3728	3376	Explorer.EXE	84
PID 3376 wrote to memory of 3728	3376	Explorer.EXE	84
PID 3728 wrote to memory of 3504	3728	rundll32.exe	86
PID 3728 wrote to memory of 3504	3728	rundll32.exe	86
PID 3728 wrote to memory of 3504	3728	rundll32.exe	86

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3376
- C:\Users\Admin\AppData\Local\Temp\drreedddd.exe
  "C:\Users\Admin\AppData\Local\Temp\drreedddd.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:4120
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\drreedddd.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3900
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.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:3504

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

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Downloads

memory/3376-11-0x0000000007EA0000-0x0000000008027000-memory.dmp

Filesize
1.5MB

Download
memory/3376-20-0x0000000008620000-0x000000000875A000-memory.dmp

Filesize
1.2MB

Download
memory/3376-21-0x0000000008620000-0x000000000875A000-memory.dmp

Filesize
1.2MB

Download
memory/3376-23-0x0000000008620000-0x000000000875A000-memory.dmp

Filesize
1.2MB

Download
memory/3728-12-0x00000000007F0000-0x0000000000804000-memory.dmp

Filesize
80KB

Download
memory/3728-15-0x00000000007F0000-0x0000000000804000-memory.dmp

Filesize
80KB

Download
memory/3728-16-0x0000000000640000-0x000000000066F000-memory.dmp

Filesize
188KB

Download
memory/3900-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3900-7-0x0000000001600000-0x000000000194A000-memory.dmp

Filesize
3.3MB

Download
memory/3900-10-0x0000000001380000-0x0000000001394000-memory.dmp

Filesize
80KB

Download
memory/3900-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4120-5-0x00000000033A0000-0x00000000033A4000-memory.dmp

Filesize
16KB

Download