formbook | 18c262c08dce6a59267af49ac575ddd996ebd7b1d8bcfb31cff9f9f9814cfd91

Analysis

max time kernel
149s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20-09-2024 01:08

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General

Target

18c262c08dce6a59267af49ac575ddd996ebd7b1d8bcfb31cff9f9f9814cfd91.exe
Size

1.1MB
MD5

a49be3b0ef3f7e35bfe33d328267e29d
SHA1

a63ae2c4a8e49a762439613492515592a28ecc0f
SHA256

18c262c08dce6a59267af49ac575ddd996ebd7b1d8bcfb31cff9f9f9814cfd91
SHA512

9ba71fc6120dad3714c6db25c8efccd129059c4ee70cf89e8664ec13c92dfeb259bd8d591ac75618d221f29cd25ab8cb669a01be65a78df6d7f4f8761194b2d6
SSDEEP

24576:uRmJkcoQricOIQxiZY1iaCbGV3eX2lsEO6qo:7JZoQrbTFZY1iaCS8X2Beo

Score

10^/10

formbook k94g discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

k94g

Decoy

nstandgoz.xyz

dhd-treatment-37310.bond

13s-braces-us-ze.fun

umdona.shop

96ph803ql.bond

kka9max.net

corporate-10.xyz

edicalassistance869840.online

lobalresources-bh.xyz

3145978.xyz

ovdaawebsite.online

etting-thailand.net

icloud.xyz

poxk.shop

25ks-ls72510.cyou

women.info

iwyrfbfvhv9.asia

luratu.xyz

ffordable-power-charger.today

edanuryilmaz.xyz

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/1464-3-0x00000000004A0000-0x00000000004CF000-memory.dmp	formbook
behavioral2/memory/1464-7-0x00000000004A0000-0x00000000004CF000-memory.dmp	formbook
behavioral2/memory/1464-11-0x00000000004A0000-0x00000000004CF000-memory.dmp	formbook
behavioral2/memory/4900-17-0x0000000001000000-0x000000000102F000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1048 set thread context of 1464	1048	18c262c08dce6a59267af49ac575ddd996ebd7b1d8bcfb31cff9f9f9814cfd91.exe	89
PID 1464 set thread context of 3440	1464	svchost.exe	56
PID 1464 set thread context of 3440	1464	svchost.exe	56
PID 4900 set thread context of 3440	4900	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	18c262c08dce6a59267af49ac575ddd996ebd7b1d8bcfb31cff9f9f9814cfd91.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmstp.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1464	svchost.exe
1464	svchost.exe
1464	svchost.exe
1464	svchost.exe
1464	svchost.exe
1464	svchost.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe
4900	cmstp.exe

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
1048	18c262c08dce6a59267af49ac575ddd996ebd7b1d8bcfb31cff9f9f9814cfd91.exe
1048	18c262c08dce6a59267af49ac575ddd996ebd7b1d8bcfb31cff9f9f9814cfd91.exe
1464	svchost.exe
1464	svchost.exe
1464	svchost.exe
1464	svchost.exe
4900	cmstp.exe
4900	cmstp.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1464	svchost.exe
Token: SeDebugPrivilege	4900	cmstp.exe
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1048 wrote to memory of 1464	1048	18c262c08dce6a59267af49ac575ddd996ebd7b1d8bcfb31cff9f9f9814cfd91.exe	89
PID 1048 wrote to memory of 1464	1048	18c262c08dce6a59267af49ac575ddd996ebd7b1d8bcfb31cff9f9f9814cfd91.exe	89
PID 1048 wrote to memory of 1464	1048	18c262c08dce6a59267af49ac575ddd996ebd7b1d8bcfb31cff9f9f9814cfd91.exe	89
PID 1048 wrote to memory of 1464	1048	18c262c08dce6a59267af49ac575ddd996ebd7b1d8bcfb31cff9f9f9814cfd91.exe	89
PID 3440 wrote to memory of 4900	3440	Explorer.EXE	96
PID 3440 wrote to memory of 4900	3440	Explorer.EXE	96
PID 3440 wrote to memory of 4900	3440	Explorer.EXE	96
PID 4900 wrote to memory of 920	4900	cmstp.exe	99
PID 4900 wrote to memory of 920	4900	cmstp.exe	99
PID 4900 wrote to memory of 920	4900	cmstp.exe	99

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3440
- C:\Users\Admin\AppData\Local\Temp\18c262c08dce6a59267af49ac575ddd996ebd7b1d8bcfb31cff9f9f9814cfd91.exe
  "C:\Users\Admin\AppData\Local\Temp\18c262c08dce6a59267af49ac575ddd996ebd7b1d8bcfb31cff9f9f9814cfd91.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1048
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\18c262c08dce6a59267af49ac575ddd996ebd7b1d8bcfb31cff9f9f9814cfd91.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1464
- 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:4900
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:920

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4280,i,10065386245627775856,6567048529106473151,262144 --variations-seed-version --mojo-platform-channel-handle=1044 /prefetch:8
1⤵
PID:3828

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/1048-2-0x0000000003C90000-0x0000000003E90000-memory.dmp

Filesize
2.0MB

Download
memory/1464-11-0x00000000004A0000-0x00000000004CF000-memory.dmp

Filesize
188KB

Download
memory/1464-6-0x0000000000FE0000-0x000000000132A000-memory.dmp

Filesize
3.3MB

Download
memory/1464-8-0x0000000000BD0000-0x0000000000BE4000-memory.dmp

Filesize
80KB

Download
memory/1464-7-0x00000000004A0000-0x00000000004CF000-memory.dmp

Filesize
188KB

Download
memory/1464-3-0x00000000004A0000-0x00000000004CF000-memory.dmp

Filesize
188KB

Download
memory/1464-12-0x0000000000F50000-0x0000000000F64000-memory.dmp

Filesize
80KB

Download
memory/3440-14-0x0000000007FE0000-0x000000000817A000-memory.dmp

Filesize
1.6MB

Download
memory/3440-13-0x0000000008250000-0x00000000083EE000-memory.dmp

Filesize
1.6MB

Download
memory/3440-9-0x0000000007FE0000-0x000000000817A000-memory.dmp

Filesize
1.6MB

Download
memory/3440-18-0x0000000008250000-0x00000000083EE000-memory.dmp

Filesize
1.6MB

Download
memory/3440-21-0x00000000084C0000-0x00000000085F7000-memory.dmp

Filesize
1.2MB

Download
memory/3440-22-0x00000000084C0000-0x00000000085F7000-memory.dmp

Filesize
1.2MB

Download
memory/3440-24-0x00000000084C0000-0x00000000085F7000-memory.dmp

Filesize
1.2MB

Download
memory/4900-15-0x0000000000700000-0x0000000000716000-memory.dmp

Filesize
88KB

Download
memory/4900-16-0x0000000000700000-0x0000000000716000-memory.dmp

Filesize
88KB

Download
memory/4900-17-0x0000000001000000-0x000000000102F000-memory.dmp

Filesize
188KB

Download