formbook | 3ed5ac09ba40f97e597597369bab0d72d444f2a2a449cddf9ff4e86b31802130

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2024 13:52

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General

Target

N°DEM241126.exe
Size

677KB
MD5

a3cb1b29866aaee19b2281f5dd58d19a
SHA1

cb21a2d54fcfe1862c5521728060a2aceaeb9d61
SHA256

562fb4a84dcb45e2f2266193250ce88e92bc7b8f270868fe10157a6c56de0c33
SHA512

f0da99cde645481fa64c59448b837a0d79e91de77fe6b3f1edcfd0684f24024b0c16e262a86c8447c626da7ea2b772bca3d6062c1fdfb5be97f4121dfd35e1c3
SSDEEP

12288:mnCb+eCSmuuhAfKogUAECK6yydxD0WFtw8feQSxNhQa6y69I3vk51t:muCnqbAO6rD0WO/aZt

Score

10^/10

formbook bc01 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bc01

Decoy

epatitis-treatment-26155.bond

52cy67sk.bond

nline-degree-6987776.world

ingxingdiandeng-2033.top

mberbreeze.cyou

48xc300mw.autos

obs-for-seniors-39582.bond

tpetersburg-3-tonn.online

egafon-parser.online

172jh.shop

ltraman.pro

bqfhnys.shop

ntercash24-cad.homes

uhtwister.cloud

alk-in-tubs-27353.bond

ucas-saaad.buzz

oko.events

8080713.xyz

refabricated-homes-74404.bond

inaa.boo

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Formbook family
formbook

Formbook payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/548-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/548-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/548-69-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2208-74-0x0000000001000000-0x000000000102F000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

Processes:

powershell.exe

pid	Process
8	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

N°DEM241126.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	N°DEM241126.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

N°DEM241126.exeN°DEM241126.exerundll32.exe

description	pid	Process	procid_target
PID 4300 set thread context of 548	4300	N°DEM241126.exe	99
PID 548 set thread context of 3460	548	N°DEM241126.exe	56
PID 548 set thread context of 3460	548	N°DEM241126.exe	56
PID 2208 set thread context of 3460	2208	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 5 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:

cmd.exeN°DEM241126.exepowershell.exeN°DEM241126.exerundll32.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	N°DEM241126.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	N°DEM241126.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious behavior: EnumeratesProcesses 56 IoCs

Processes:

N°DEM241126.exeN°DEM241126.exepowershell.exerundll32.exe

pid	Process
4300	N°DEM241126.exe
4300	N°DEM241126.exe
548	N°DEM241126.exe
548	N°DEM241126.exe
548	N°DEM241126.exe
548	N°DEM241126.exe
8	powershell.exe
8	powershell.exe
548	N°DEM241126.exe
548	N°DEM241126.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe
2208	rundll32.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

N°DEM241126.exerundll32.exe

pid	Process
548	N°DEM241126.exe
548	N°DEM241126.exe
548	N°DEM241126.exe
548	N°DEM241126.exe
2208	rundll32.exe
2208	rundll32.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

N°DEM241126.exeN°DEM241126.exepowershell.exeExplorer.EXErundll32.exe

description	pid	Process
Token: SeDebugPrivilege	4300	N°DEM241126.exe
Token: SeDebugPrivilege	548	N°DEM241126.exe
Token: SeDebugPrivilege	8	powershell.exe
Token: SeShutdownPrivilege	3460	Explorer.EXE
Token: SeCreatePagefilePrivilege	3460	Explorer.EXE
Token: SeDebugPrivilege	2208	rundll32.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

N°DEM241126.exeN°DEM241126.exerundll32.exe

description	pid	Process	procid_target
PID 4300 wrote to memory of 8	4300	N°DEM241126.exe	96
PID 4300 wrote to memory of 8	4300	N°DEM241126.exe	96
PID 4300 wrote to memory of 8	4300	N°DEM241126.exe	96
PID 4300 wrote to memory of 1960	4300	N°DEM241126.exe	98
PID 4300 wrote to memory of 1960	4300	N°DEM241126.exe	98
PID 4300 wrote to memory of 1960	4300	N°DEM241126.exe	98
PID 4300 wrote to memory of 548	4300	N°DEM241126.exe	99
PID 4300 wrote to memory of 548	4300	N°DEM241126.exe	99
PID 4300 wrote to memory of 548	4300	N°DEM241126.exe	99
PID 4300 wrote to memory of 548	4300	N°DEM241126.exe	99
PID 4300 wrote to memory of 548	4300	N°DEM241126.exe	99
PID 4300 wrote to memory of 548	4300	N°DEM241126.exe	99
PID 548 wrote to memory of 2208	548	N°DEM241126.exe	107
PID 548 wrote to memory of 2208	548	N°DEM241126.exe	107
PID 548 wrote to memory of 2208	548	N°DEM241126.exe	107
PID 2208 wrote to memory of 3588	2208	rundll32.exe	108
PID 2208 wrote to memory of 3588	2208	rundll32.exe	108
PID 2208 wrote to memory of 3588	2208	rundll32.exe	108

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3460
- C:\Users\Admin\AppData\Local\Temp\N°DEM241126.exe
  "C:\Users\Admin\AppData\Local\Temp\N°DEM241126.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4300
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\N°DEM241126.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:8
- - C:\Users\Admin\AppData\Local\Temp\N°DEM241126.exe
    "C:\Users\Admin\AppData\Local\Temp\N°DEM241126.exe"
    3⤵
    PID:1960
- - C:\Users\Admin\AppData\Local\Temp\N°DEM241126.exe
    "C:\Users\Admin\AppData\Local\Temp\N°DEM241126.exe"
    3⤵
    - 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:548
  - - C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\SysWOW64\rundll32.exe"
      4⤵
      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:2208
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Users\Admin\AppData\Local\Temp\N°DEM241126.exe"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:3588
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:800
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:4952
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:3420
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3wczq4wb.1ru.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/8-58-0x0000000007C80000-0x0000000007D16000-memory.dmp

Filesize
600KB

Download
memory/8-60-0x0000000007C30000-0x0000000007C3E000-memory.dmp

Filesize
56KB

Download
memory/8-37-0x00000000066B0000-0x00000000066CE000-memory.dmp

Filesize
120KB

Download
memory/8-38-0x0000000006790000-0x00000000067DC000-memory.dmp

Filesize
304KB

Download
memory/8-67-0x0000000074610000-0x0000000074DC0000-memory.dmp

Filesize
7.7MB

Download
memory/8-39-0x000000007F2E0000-0x000000007F2F0000-memory.dmp

Filesize
64KB

Download
memory/8-63-0x0000000007D20000-0x0000000007D28000-memory.dmp

Filesize
32KB

Download
memory/8-62-0x0000000007D40000-0x0000000007D5A000-memory.dmp

Filesize
104KB

Download
memory/8-61-0x0000000007C40000-0x0000000007C54000-memory.dmp

Filesize
80KB

Download
memory/8-59-0x0000000007C00000-0x0000000007C11000-memory.dmp

Filesize
68KB

Download
memory/8-57-0x0000000007A70000-0x0000000007A7A000-memory.dmp

Filesize
40KB

Download
memory/8-56-0x0000000007A00000-0x0000000007A1A000-memory.dmp

Filesize
104KB

Download
memory/8-55-0x0000000008040000-0x00000000086BA000-memory.dmp

Filesize
6.5MB

Download
memory/8-18-0x000000007461E000-0x000000007461F000-memory.dmp

Filesize
4KB

Download
memory/8-19-0x0000000005130000-0x0000000005166000-memory.dmp

Filesize
216KB

Download
memory/8-20-0x0000000005940000-0x0000000005F68000-memory.dmp

Filesize
6.2MB

Download
memory/8-54-0x00000000078D0000-0x0000000007973000-memory.dmp

Filesize
652KB

Download
memory/8-53-0x00000000078B0000-0x00000000078CE000-memory.dmp

Filesize
120KB

Download
memory/8-22-0x0000000074610000-0x0000000074DC0000-memory.dmp

Filesize
7.7MB

Download
memory/8-21-0x0000000005600000-0x0000000005622000-memory.dmp

Filesize
136KB

Download
memory/8-24-0x0000000005300000-0x0000000005310000-memory.dmp

Filesize
64KB

Download
memory/8-26-0x0000000006070000-0x00000000060D6000-memory.dmp

Filesize
408KB

Download
memory/8-47-0x0000000005300000-0x0000000005310000-memory.dmp

Filesize
64KB

Download
memory/8-25-0x0000000005820000-0x0000000005886000-memory.dmp

Filesize
408KB

Download
memory/8-48-0x0000000005300000-0x0000000005310000-memory.dmp

Filesize
64KB

Download
memory/8-36-0x00000000060E0000-0x0000000006434000-memory.dmp

Filesize
3.3MB

Download
memory/8-41-0x0000000070ED0000-0x0000000070F1C000-memory.dmp

Filesize
304KB

Download
memory/8-40-0x0000000007670000-0x00000000076A2000-memory.dmp

Filesize
200KB

Download
memory/8-64-0x000000007461E000-0x000000007461F000-memory.dmp

Filesize
4KB

Download
memory/548-70-0x0000000001310000-0x0000000001324000-memory.dmp

Filesize
80KB

Download
memory/548-13-0x0000000001370000-0x00000000016BA000-memory.dmp

Filesize
3.3MB

Download
memory/548-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/548-17-0x0000000000DC0000-0x0000000000DD4000-memory.dmp

Filesize
80KB

Download
memory/548-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/548-69-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2208-74-0x0000000001000000-0x000000000102F000-memory.dmp

Filesize
188KB

Download
memory/2208-73-0x0000000000960000-0x0000000000974000-memory.dmp

Filesize
80KB

Download
memory/2208-72-0x0000000000960000-0x0000000000974000-memory.dmp

Filesize
80KB

Download
memory/3460-75-0x0000000007CF0000-0x0000000007DB0000-memory.dmp

Filesize
768KB

Download
memory/3460-23-0x0000000007BF0000-0x0000000007CE2000-memory.dmp

Filesize
968KB

Download
memory/3460-71-0x0000000007CF0000-0x0000000007DB0000-memory.dmp

Filesize
768KB

Download
memory/3460-79-0x00000000080C0000-0x0000000008212000-memory.dmp

Filesize
1.3MB

Download
memory/4300-7-0x0000000005860000-0x000000000587C000-memory.dmp

Filesize
112KB

Download
memory/4300-14-0x0000000074610000-0x0000000074DC0000-memory.dmp

Filesize
7.7MB

Download
memory/4300-6-0x00000000053D0000-0x00000000053DA000-memory.dmp

Filesize
40KB

Download
memory/4300-5-0x0000000074610000-0x0000000074DC0000-memory.dmp

Filesize
7.7MB

Download
memory/4300-8-0x000000007461E000-0x000000007461F000-memory.dmp

Filesize
4KB

Download
memory/4300-10-0x0000000008110000-0x0000000008188000-memory.dmp

Filesize
480KB

Download
memory/4300-0-0x000000007461E000-0x000000007461F000-memory.dmp

Filesize
4KB

Download
memory/4300-4-0x0000000005490000-0x000000000552C000-memory.dmp

Filesize
624KB

Download
memory/4300-9-0x0000000074610000-0x0000000074DC0000-memory.dmp

Filesize
7.7MB

Download
memory/4300-1-0x0000000000920000-0x00000000009D0000-memory.dmp

Filesize
704KB

Download
memory/4300-3-0x00000000053F0000-0x0000000005482000-memory.dmp

Filesize
584KB

Download
memory/4300-2-0x00000000059A0000-0x0000000005F44000-memory.dmp

Filesize
5.6MB

Download