formbook | e69d37275cc3b52a9d3a26f76073191ab8f59901781b5ef2859f33dee2252ddc

Analysis

max time kernel
146s
max time network
125s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-01-2025 13:02

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General

Target

BankCertificateFilepdf00.exe
Size

724KB
MD5

595417bf40423929716d259aa6151e68
SHA1

3adf3f7db8401715e7b73c50e1feee8b034b2f88
SHA256

e69d37275cc3b52a9d3a26f76073191ab8f59901781b5ef2859f33dee2252ddc
SHA512

03122a9d4fa3b0426d3e10bb1700c6060300b391fd1fb49242c694485a753dc7e6a5d5edc9147f469774b04f3444bf77a3ebe930c68275456309b99ca50a1f60
SSDEEP

12288:sbnXloJNhQ/cWS7stu8HP1RhXtriB5VIenigsc5YK9ygCvSDH6Way22keYeJa9:eiJN+UVsw2P3tcnRYK6SDh4eE

Score

10^/10

formbook a02d discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

a02d

Decoy

coplus.market

oofing-jobs-74429.bond

healchemists.xyz

oofcarpenternearme-jp.xyz

enewebsolutions.online

harepoint.legal

88977.club

omptables.xyz

eat-pumps-31610.bond

endown.graphics

amsexgirls.website

ovevibes.xyz

u-thiensu.online

yblinds.xyz

rumpchiefofstaff.store

erzog.fun

rrm.lat

agiclime.pro

agaviet59.shop

lbdoanhnhan.net

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2280-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2548-28-0x00000000000D0000-0x00000000000FF000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
340	powershell.exe
2820	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1652 set thread context of 2280	1652	BankCertificateFilepdf00.exe	37
PID 2280 set thread context of 1196	2280	RegSvcs.exe	21
PID 2548 set thread context of 1196	2548	wuapp.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 6 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuapp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BankCertificateFilepdf00.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2728	schtasks.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
1652	BankCertificateFilepdf00.exe
1652	BankCertificateFilepdf00.exe
2280	RegSvcs.exe
2280	RegSvcs.exe
2820	powershell.exe
340	powershell.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe
2548	wuapp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2280	RegSvcs.exe
2280	RegSvcs.exe
2280	RegSvcs.exe
2548	wuapp.exe
2548	wuapp.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1652	BankCertificateFilepdf00.exe
Token: SeDebugPrivilege	2280	RegSvcs.exe
Token: SeDebugPrivilege	340	powershell.exe
Token: SeDebugPrivilege	2820	powershell.exe
Token: SeDebugPrivilege	2548	wuapp.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1652 wrote to memory of 340	1652	BankCertificateFilepdf00.exe	31
PID 1652 wrote to memory of 340	1652	BankCertificateFilepdf00.exe	31
PID 1652 wrote to memory of 340	1652	BankCertificateFilepdf00.exe	31
PID 1652 wrote to memory of 340	1652	BankCertificateFilepdf00.exe	31
PID 1652 wrote to memory of 2820	1652	BankCertificateFilepdf00.exe	33
PID 1652 wrote to memory of 2820	1652	BankCertificateFilepdf00.exe	33
PID 1652 wrote to memory of 2820	1652	BankCertificateFilepdf00.exe	33
PID 1652 wrote to memory of 2820	1652	BankCertificateFilepdf00.exe	33
PID 1652 wrote to memory of 2728	1652	BankCertificateFilepdf00.exe	34
PID 1652 wrote to memory of 2728	1652	BankCertificateFilepdf00.exe	34
PID 1652 wrote to memory of 2728	1652	BankCertificateFilepdf00.exe	34
PID 1652 wrote to memory of 2728	1652	BankCertificateFilepdf00.exe	34
PID 1652 wrote to memory of 2280	1652	BankCertificateFilepdf00.exe	37
PID 1652 wrote to memory of 2280	1652	BankCertificateFilepdf00.exe	37
PID 1652 wrote to memory of 2280	1652	BankCertificateFilepdf00.exe	37
PID 1652 wrote to memory of 2280	1652	BankCertificateFilepdf00.exe	37
PID 1652 wrote to memory of 2280	1652	BankCertificateFilepdf00.exe	37
PID 1652 wrote to memory of 2280	1652	BankCertificateFilepdf00.exe	37
PID 1652 wrote to memory of 2280	1652	BankCertificateFilepdf00.exe	37
PID 1652 wrote to memory of 2280	1652	BankCertificateFilepdf00.exe	37
PID 1652 wrote to memory of 2280	1652	BankCertificateFilepdf00.exe	37
PID 1652 wrote to memory of 2280	1652	BankCertificateFilepdf00.exe	37
PID 1196 wrote to memory of 2548	1196	Explorer.EXE	38
PID 1196 wrote to memory of 2548	1196	Explorer.EXE	38
PID 1196 wrote to memory of 2548	1196	Explorer.EXE	38
PID 1196 wrote to memory of 2548	1196	Explorer.EXE	38
PID 1196 wrote to memory of 2548	1196	Explorer.EXE	38
PID 1196 wrote to memory of 2548	1196	Explorer.EXE	38
PID 1196 wrote to memory of 2548	1196	Explorer.EXE	38
PID 2548 wrote to memory of 2584	2548	wuapp.exe	39
PID 2548 wrote to memory of 2584	2548	wuapp.exe	39
PID 2548 wrote to memory of 2584	2548	wuapp.exe	39
PID 2548 wrote to memory of 2584	2548	wuapp.exe	39

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Users\Admin\AppData\Local\Temp\BankCertificateFilepdf00.exe
  "C:\Users\Admin\AppData\Local\Temp\BankCertificateFilepdf00.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1652
- - 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\BankCertificateFilepdf00.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:340
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\HPkPojK.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2820
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HPkPojK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF42E.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2728
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2280
- C:\Windows\SysWOW64\wuapp.exe
  "C:\Windows\SysWOW64\wuapp.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:2548
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2584

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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

C:\Users\Admin\AppData\Local\Temp\tmpF42E.tmp

Filesize
1KB

MD5
8ef3f3bf868af60823dc30fea893b25c

SHA1
38520ee2a2d230156a9120bf233c4a699bdfdc8d

SHA256
73e31b82a1034bbc804f8cabbaaa3d266beb07efc560a524c094d01db4ec9cf3

SHA512
513c394695f471d8d6df86471705b592a25a1da1bb7f7041563ff9c2d822ec909db0d5b77bf77608abe61913cf2d313c307607341077956160644885a642005e

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
b3e969667f0539ab75a8cafe45673446

SHA1
263e3d995c1e66987ab3aaf8da867dcb78480500

SHA256
e44b22938d7e15b4dac48af65c6527d3ef2da13ae3d8cfa6003021ab947c62a9

SHA512
4dcc73d9406b9359bfea47301e8995b7c6d1916d34abb93c1a014a55639d82ff46211fb993b758cbe505f546b99ccb7eaa786e192593e9d00507b5ac4d2ac4af

Download Submit
memory/1652-4-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

Filesize
4KB

Download
memory/1652-26-0x0000000074A80000-0x000000007516E000-memory.dmp

Filesize
6.9MB

Download
memory/1652-0-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

Filesize
4KB

Download
memory/1652-5-0x0000000074A80000-0x000000007516E000-memory.dmp

Filesize
6.9MB

Download
memory/1652-6-0x00000000008B0000-0x0000000000928000-memory.dmp

Filesize
480KB

Download
memory/1652-2-0x0000000074A80000-0x000000007516E000-memory.dmp

Filesize
6.9MB

Download
memory/1652-1-0x0000000000ED0000-0x0000000000F8C000-memory.dmp

Filesize
752KB

Download
memory/1652-3-0x0000000000520000-0x0000000000546000-memory.dmp

Filesize
152KB

Download
memory/2280-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2280-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2280-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2280-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2548-27-0x0000000000F40000-0x0000000000F4B000-memory.dmp

Filesize
44KB

Download
memory/2548-28-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download