formbook | 6071cb295706839cd321006ce6112eb2a6a033edd63eb664dc82a3aa8cf80b8b

Analysis

max time kernel
300s
max time network
243s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
09-10-2024 01:20

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General

Target

N°2024P411.174.exe
Size

636KB
MD5

c39e04e01454a9b16be13544c18f9817
SHA1

8e037a7d6df8558657fe0418b38d5c842eb015f2
SHA256

c76f4cc201813bc9e4a8d5ae27ce0c59b799f02dd48b3e09af20118a8fe18c50
SHA512

7639141244f62e324e0a11a1e3b5abcd5b253114608faf115ff1c5497bf6202687a9bc961a0937763e244848fb6f268e2323c6c192f4b48e5beb13961b353b8b
SSDEEP

12288:cnCMfuwPqzywu/YooL489R2pZ/kHM1mgD84MImE:6fLwu/m489E/p1mNjE

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 payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/2868-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2868-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2868-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2648-27-0x00000000000D0000-0x00000000000FF000-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

pid	Process
2836	powershell.exe

Deletes itself 1 IoCs

pid	Process
2728	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1856 set thread context of 2868	1856	N°2024P411.174.exe	31
PID 2868 set thread context of 1388	2868	N°2024P411.174.exe	21
PID 2868 set thread context of 1388	2868	N°2024P411.174.exe	21
PID 2648 set thread context of 1388	2648	chkdsk.exe	21

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 4 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	N°2024P411.174.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
2868	N°2024P411.174.exe
2868	N°2024P411.174.exe
2836	powershell.exe
2868	N°2024P411.174.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe
2648	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2868	N°2024P411.174.exe
2868	N°2024P411.174.exe
2868	N°2024P411.174.exe
2868	N°2024P411.174.exe
2648	chkdsk.exe
2648	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2868	N°2024P411.174.exe
Token: SeDebugPrivilege	2836	powershell.exe
Token: SeDebugPrivilege	2648	chkdsk.exe
Token: SeShutdownPrivilege	1388	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1856 wrote to memory of 2836	1856	N°2024P411.174.exe	30
PID 1856 wrote to memory of 2836	1856	N°2024P411.174.exe	30
PID 1856 wrote to memory of 2836	1856	N°2024P411.174.exe	30
PID 1856 wrote to memory of 2836	1856	N°2024P411.174.exe	30
PID 1856 wrote to memory of 2868	1856	N°2024P411.174.exe	31
PID 1856 wrote to memory of 2868	1856	N°2024P411.174.exe	31
PID 1856 wrote to memory of 2868	1856	N°2024P411.174.exe	31
PID 1856 wrote to memory of 2868	1856	N°2024P411.174.exe	31
PID 1856 wrote to memory of 2868	1856	N°2024P411.174.exe	31
PID 1856 wrote to memory of 2868	1856	N°2024P411.174.exe	31
PID 1856 wrote to memory of 2868	1856	N°2024P411.174.exe	31
PID 1388 wrote to memory of 2648	1388	Explorer.EXE	33
PID 1388 wrote to memory of 2648	1388	Explorer.EXE	33
PID 1388 wrote to memory of 2648	1388	Explorer.EXE	33
PID 1388 wrote to memory of 2648	1388	Explorer.EXE	33
PID 2648 wrote to memory of 2728	2648	chkdsk.exe	34
PID 2648 wrote to memory of 2728	2648	chkdsk.exe	34
PID 2648 wrote to memory of 2728	2648	chkdsk.exe	34
PID 2648 wrote to memory of 2728	2648	chkdsk.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1388
- C:\Users\Admin\AppData\Local\Temp\N°2024P411.174.exe
  "C:\Users\Admin\AppData\Local\Temp\N°2024P411.174.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1856
- - 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°2024P411.174.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2836
- - C:\Users\Admin\AppData\Local\Temp\N°2024P411.174.exe
    "C:\Users\Admin\AppData\Local\Temp\N°2024P411.174.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2868
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2648
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\N°2024P411.174.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2728

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

memory/1388-18-0x0000000007750000-0x0000000007891000-memory.dmp

Filesize
1.3MB

Download
memory/1388-26-0x0000000007750000-0x0000000007891000-memory.dmp

Filesize
1.3MB

Download
memory/1856-1-0x0000000001390000-0x0000000001436000-memory.dmp

Filesize
664KB

Download
memory/1856-2-0x00000000749E0000-0x00000000750CE000-memory.dmp

Filesize
6.9MB

Download
memory/1856-3-0x0000000000450000-0x0000000000468000-memory.dmp

Filesize
96KB

Download
memory/1856-4-0x00000000749EE000-0x00000000749EF000-memory.dmp

Filesize
4KB

Download
memory/1856-5-0x00000000749E0000-0x00000000750CE000-memory.dmp

Filesize
6.9MB

Download
memory/1856-6-0x0000000004840000-0x00000000048B6000-memory.dmp

Filesize
472KB

Download
memory/1856-0-0x00000000749EE000-0x00000000749EF000-memory.dmp

Filesize
4KB

Download
memory/1856-19-0x00000000749E0000-0x00000000750CE000-memory.dmp

Filesize
6.9MB

Download
memory/2648-27-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download
memory/2648-25-0x0000000000B80000-0x0000000000B87000-memory.dmp

Filesize
28KB

Download
memory/2868-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2868-14-0x00000000008D0000-0x0000000000BD3000-memory.dmp

Filesize
3.0MB

Download
memory/2868-17-0x00000000001D0000-0x00000000001E4000-memory.dmp

Filesize
80KB

Download
memory/2868-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2868-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2868-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2868-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2868-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download