formbook | b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-10-2024 03:19

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General

Target

b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff.exe
Size

1.0MB
MD5

18aa3e958673ab344b5a1440c6c22415
SHA1

507cd39367debb2dd96b19393e38cfa1d1978f91
SHA256

b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff
SHA512

c6aafd8c858aa72778895e61840cedae7c66e3316b913d1cd80f44e7ceceae48f655955bc8bbe6b3bd53662d8654c46bad2523b8f663c57675a0545b7fc286ae
SSDEEP

24576:ffmMv6Ckr7Mny5QLqq/Set8hVp3Q7SS5lQ:f3v+7/5QL14VKS

Score

10^/10

formbook fh84 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

fh84

Decoy

mtzyn.top

zfn-no-hsts.win

j10g.xyz

arehouse-inventory-60572.bond

nlineprodutooffer.shop

ar-deals-77764.bond

e3m2.xyz

cquisitive.group

unkusol.xyz

01307.xyz

uratedcelebrations.net

nfiniworkshop-thai.online

s-cmc.net

idney360.info

ipolar-treatment-us-311-ze.zone

entenstituleridernegi.biz

olombiaoutlet.shop

uradab.rest

qega.shop

73519.vip

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

Processes:

resource	yara_rule
behavioral2/memory/1040-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1040-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2628-12-0x00000000010C0000-0x00000000010EF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff.exesvchost.exeraserver.exe

description	pid	Process	procid_target
PID 4412 set thread context of 1040	4412	b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff.exe	87
PID 1040 set thread context of 3484	1040	svchost.exe	56
PID 2628 set thread context of 3484	2628	raserver.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

Processes:

b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff.exeraserver.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	raserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

Processes:

svchost.exeraserver.exe

pid	Process
1040	svchost.exe
1040	svchost.exe
1040	svchost.exe
1040	svchost.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe
2628	raserver.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff.exesvchost.exeraserver.exe

pid	Process
4412	b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff.exe
1040	svchost.exe
1040	svchost.exe
1040	svchost.exe
2628	raserver.exe
2628	raserver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

svchost.exeraserver.exe

description	pid	Process
Token: SeDebugPrivilege	1040	svchost.exe
Token: SeDebugPrivilege	2628	raserver.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff.exe

pid	Process
4412	b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff.exe
4412	b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff.exe

Suspicious use of SendNotifyMessage 2 IoCs

Processes:

b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff.exe

pid	Process
4412	b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff.exe
4412	b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff.exe

Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid	Process
3484	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff.exeExplorer.EXEraserver.exe

description	pid	Process	procid_target
PID 4412 wrote to memory of 1040	4412	b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff.exe	87
PID 4412 wrote to memory of 1040	4412	b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff.exe	87
PID 4412 wrote to memory of 1040	4412	b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff.exe	87
PID 4412 wrote to memory of 1040	4412	b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff.exe	87
PID 3484 wrote to memory of 2628	3484	Explorer.EXE	88
PID 3484 wrote to memory of 2628	3484	Explorer.EXE	88
PID 3484 wrote to memory of 2628	3484	Explorer.EXE	88
PID 2628 wrote to memory of 4348	2628	raserver.exe	93
PID 2628 wrote to memory of 4348	2628	raserver.exe	93
PID 2628 wrote to memory of 4348	2628	raserver.exe	93

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3484
- C:\Users\Admin\AppData\Local\Temp\b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff.exe
  "C:\Users\Admin\AppData\Local\Temp\b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff.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:4412
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\b918f086cc5556f280339d5ce479e7397ce18fe770fef5538379d1ed8f7407ff.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1040
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.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:2628
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4348

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/1040-7-0x0000000001390000-0x00000000013A5000-memory.dmp

Filesize
84KB

Download
memory/1040-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1040-4-0x0000000001600000-0x000000000194A000-memory.dmp

Filesize
3.3MB

Download
memory/1040-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2628-9-0x0000000000950000-0x000000000096F000-memory.dmp

Filesize
124KB

Download
memory/2628-11-0x0000000000950000-0x000000000096F000-memory.dmp

Filesize
124KB

Download
memory/2628-12-0x00000000010C0000-0x00000000010EF000-memory.dmp

Filesize
188KB

Download
memory/3484-8-0x0000000009060000-0x0000000009185000-memory.dmp

Filesize
1.1MB

Download
memory/3484-13-0x0000000009060000-0x0000000009185000-memory.dmp

Filesize
1.1MB

Download
memory/3484-17-0x0000000007B80000-0x0000000007C50000-memory.dmp

Filesize
832KB

Download
memory/3484-18-0x0000000007B80000-0x0000000007C50000-memory.dmp

Filesize
832KB

Download
memory/3484-20-0x0000000007B80000-0x0000000007C50000-memory.dmp

Filesize
832KB

Download
memory/4412-2-0x00000000040C0000-0x00000000042C0000-memory.dmp

Filesize
2.0MB

Download