formbook | bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b

Analysis

max time kernel
146s
max time network
119s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
14-01-2025 03:12

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General

Target

bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe
Size

836KB
MD5

735a274389af85c4b4f6ccd684b1b30a
SHA1

2ae6619febb0c9f4d318daa9f28172c2ed9ed4da
SHA256

bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b
SHA512

959bd09b752128ae08262bc7803b857099e3727f025f380a918f5b46ac64384180224ef40cc086c795f54dbb8621798b3ba95362805bccbc634800fc626bf14a
SSDEEP

24576:C8yNK1t4NK1tOqLB94uH/Stkd3uRStXvfFQ:Rhz9fvj

Score

10^/10

formbook a03d discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

a03d

Decoy

nfluencer-marketing-13524.bond

cebepu.info

lphatechblog.xyz

haoyun.website

itiz.xyz

orld-visa-center.online

si.art

alata.xyz

mmarketing.xyz

elnqdjc.shop

ensentoto.cloud

voyagu.info

onvert.today

1fuli9902.shop

otelhafnia.info

rumpchiefofstaff.store

urvivalflashlights.shop

0090.pizza

ings-hu-13.today

oliticalpatriot.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/2876-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2640-28-0x0000000000080000-0x00000000000AF000-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
1924	powershell.exe
2508	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3044 set thread context of 2876	3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe	37
PID 2876 set thread context of 1204	2876	MSBuild.exe	21
PID 2640 set thread context of 1204	2640	cmd.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe
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

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
2392	schtasks.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe
3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe
2508	powershell.exe
1924	powershell.exe
2876	MSBuild.exe
2876	MSBuild.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe
2640	cmd.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2876	MSBuild.exe
2876	MSBuild.exe
2876	MSBuild.exe
2640	cmd.exe
2640	cmd.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe
Token: SeDebugPrivilege	2508	powershell.exe
Token: SeDebugPrivilege	1924	powershell.exe
Token: SeDebugPrivilege	2876	MSBuild.exe
Token: SeDebugPrivilege	2640	cmd.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 3044 wrote to memory of 1924	3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe	31
PID 3044 wrote to memory of 1924	3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe	31
PID 3044 wrote to memory of 1924	3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe	31
PID 3044 wrote to memory of 1924	3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe	31
PID 3044 wrote to memory of 2508	3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe	33
PID 3044 wrote to memory of 2508	3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe	33
PID 3044 wrote to memory of 2508	3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe	33
PID 3044 wrote to memory of 2508	3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe	33
PID 3044 wrote to memory of 2392	3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe	35
PID 3044 wrote to memory of 2392	3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe	35
PID 3044 wrote to memory of 2392	3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe	35
PID 3044 wrote to memory of 2392	3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe	35
PID 3044 wrote to memory of 2876	3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe	37
PID 3044 wrote to memory of 2876	3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe	37
PID 3044 wrote to memory of 2876	3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe	37
PID 3044 wrote to memory of 2876	3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe	37
PID 3044 wrote to memory of 2876	3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe	37
PID 3044 wrote to memory of 2876	3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe	37
PID 3044 wrote to memory of 2876	3044	bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe	37
PID 1204 wrote to memory of 2640	1204	Explorer.EXE	38
PID 1204 wrote to memory of 2640	1204	Explorer.EXE	38
PID 1204 wrote to memory of 2640	1204	Explorer.EXE	38
PID 1204 wrote to memory of 2640	1204	Explorer.EXE	38
PID 2640 wrote to memory of 2860	2640	cmd.exe	39
PID 2640 wrote to memory of 2860	2640	cmd.exe	39
PID 2640 wrote to memory of 2860	2640	cmd.exe	39
PID 2640 wrote to memory of 2860	2640	cmd.exe	39

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Users\Admin\AppData\Local\Temp\bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe
  "C:\Users\Admin\AppData\Local\Temp\bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3044
- - 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\bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1924
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\utlAHqvw.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2508
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\utlAHqvw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDEBB.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2392
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2876
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\SysWOW64\cmd.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:2640
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2860

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

Replay Monitor

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Downloads

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

Filesize
1KB

MD5
13b1d54dfadde0f8f16932dff85c0719

SHA1
fbb088b7d4c34656cc3b653e73a4dece97dfc240

SHA256
831c21e53e91c69d55c088ec48f5d51a5cdf25eed970c0a13d9a3ee16ce7f428

SHA512
d60d59538391ffc361a7dddadaf2273e3fb606f62294ccde9f5c27601121b05379656b0ee7332b1b06a76993e78e02617343d7080cf219deb8126cf7a84e7a6d

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\SSM4GKDF5AZJC1WWVTVA.temp

Filesize
7KB

MD5
a35db4ed269c5277660821c95a64dc62

SHA1
5b8187673b03301fd9f8dfb47fc67009ff304c55

SHA256
829de51c1ce3ec17fb369ba6bc6043da40149131bac6acefa4fb05a950f8ee32

SHA512
aaff1e8f76e6898e80150c7abd52b9e8d8bb7aaf10979089900111c2721361ced21250e3237af89a5cee53ef5c68fd189b491b8b7a3966c85a9c2622e73119c9

Download Submit
memory/2640-28-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2640-27-0x0000000049DA0000-0x0000000049DEC000-memory.dmp

Filesize
304KB

Download
memory/2876-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2876-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2876-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2876-23-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/3044-5-0x0000000074D80000-0x000000007546E000-memory.dmp

Filesize
6.9MB

Download
memory/3044-6-0x0000000008650000-0x00000000086CA000-memory.dmp

Filesize
488KB

Download
memory/3044-4-0x0000000074D8E000-0x0000000074D8F000-memory.dmp

Filesize
4KB

Download
memory/3044-3-0x0000000000470000-0x000000000048A000-memory.dmp

Filesize
104KB

Download
memory/3044-0-0x0000000074D8E000-0x0000000074D8F000-memory.dmp

Filesize
4KB

Download
memory/3044-25-0x0000000074D80000-0x000000007546E000-memory.dmp

Filesize
6.9MB

Download
memory/3044-2-0x0000000074D80000-0x000000007546E000-memory.dmp

Filesize
6.9MB

Download
memory/3044-1-0x0000000001220000-0x00000000012F8000-memory.dmp

Filesize
864KB

Download