formbook | 308d2312635d080380f1239ea08a9c7fd06ec2329e06dcb45fe429a512829e27

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-12-2024 10:42

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General

Target

invddd.exe
Size

845KB
MD5

52fc6852320639e89579861ebe66696f
SHA1

eb36a28642f5b689f62048724423aec4c1eb0ba6
SHA256

5f0f26b3d51812df461e2c368c9a373099f54b62640564e7b06881a5d25a823b
SHA512

75cfe9889d81df0152d48c9a5a3b6b9c1bb608fb27bb98198abd57334d7d36ce437e6d2701644ec179058abec558e41e2d079cf3251efb45ec7104e6869d1b3d
SSDEEP

12288:rLkcoxg7v3qnC11ErwIhh0F4qwUgUny5QLcl7YLGm86s10Y+H5N:ffmMv6Ckr7Mny5QLc9YzYCN

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/4136-6-0x0000000000510000-0x000000000053F000-memory.dmp	formbook
behavioral2/memory/4136-10-0x0000000000510000-0x000000000053F000-memory.dmp	formbook
behavioral2/memory/2564-15-0x0000000000CF0000-0x0000000000D1F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1624 set thread context of 4136	1624	invddd.exe	83
PID 4136 set thread context of 3444	4136	svchost.exe	56
PID 2564 set thread context of 3444	2564	cmstp.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	invddd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmstp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
4136	svchost.exe
4136	svchost.exe
4136	svchost.exe
4136	svchost.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe
2564	cmstp.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
1624	invddd.exe
1624	invddd.exe
4136	svchost.exe
4136	svchost.exe
4136	svchost.exe
2564	cmstp.exe
2564	cmstp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4136	svchost.exe
Token: SeDebugPrivilege	2564	cmstp.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1624	invddd.exe
1624	invddd.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1624	invddd.exe
1624	invddd.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 4136	1624	invddd.exe	83
PID 1624 wrote to memory of 4136	1624	invddd.exe	83
PID 1624 wrote to memory of 4136	1624	invddd.exe	83
PID 1624 wrote to memory of 4136	1624	invddd.exe	83
PID 3444 wrote to memory of 2564	3444	Explorer.EXE	84
PID 3444 wrote to memory of 2564	3444	Explorer.EXE	84
PID 3444 wrote to memory of 2564	3444	Explorer.EXE	84
PID 2564 wrote to memory of 2044	2564	cmstp.exe	86
PID 2564 wrote to memory of 2044	2564	cmstp.exe	86
PID 2564 wrote to memory of 2044	2564	cmstp.exe	86

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3444
- C:\Users\Admin\AppData\Local\Temp\invddd.exe
  "C:\Users\Admin\AppData\Local\Temp\invddd.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:1624
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\invddd.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4136
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.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:2564
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2044

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/1624-5-0x0000000001AE0000-0x0000000001AE4000-memory.dmp

Filesize
16KB

Download
memory/2564-14-0x00000000006D0000-0x00000000006E6000-memory.dmp

Filesize
88KB

Download
memory/2564-13-0x00000000006D0000-0x00000000006E6000-memory.dmp

Filesize
88KB

Download
memory/2564-15-0x0000000000CF0000-0x0000000000D1F000-memory.dmp

Filesize
188KB

Download
memory/3444-12-0x0000000002610000-0x00000000026C7000-memory.dmp

Filesize
732KB

Download
memory/3444-16-0x0000000002610000-0x00000000026C7000-memory.dmp

Filesize
732KB

Download
memory/3444-18-0x0000000003EF0000-0x0000000003FE1000-memory.dmp

Filesize
964KB

Download
memory/3444-19-0x0000000003EF0000-0x0000000003FE1000-memory.dmp

Filesize
964KB

Download
memory/4136-6-0x0000000000510000-0x000000000053F000-memory.dmp

Filesize
188KB

Download
memory/4136-9-0x0000000001200000-0x000000000154A000-memory.dmp

Filesize
3.3MB

Download
memory/4136-11-0x0000000001570000-0x0000000001584000-memory.dmp

Filesize
80KB

Download
memory/4136-10-0x0000000000510000-0x000000000053F000-memory.dmp

Filesize
188KB

Download