formbook | 339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97

Analysis

max time kernel
146s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16/01/2025, 02:29

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General

Target

339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe
Size

742KB
MD5

318b9fba04abf5010446161aed881cc2
SHA1

996a0ddc988e5f64537c37c68646efb2d8dacc4c
SHA256

339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97
SHA512

b84ecef8d7eab0b4c21520046fb92a242f23e9069480482b81871f327a5173adbbc0cdd2ba2ede1ec3ecdb33d477c7f5c978d00d2c2bf05abd89cb04081af9c6
SSDEEP

12288:VQoJNhQ/cWS7stsLbolyisOq+BGJpqp5VKr6FAr0trGsVagoW:V3JN+UVsa/olrBGCDVa6FAqrGWe

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/2652-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2636-29-0x00000000000C0000-0x00000000000EF000-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
2260	powershell.exe
2804	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1956 set thread context of 2652	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	37
PID 2652 set thread context of 1200	2652	RegSvcs.exe	21
PID 2636 set thread context of 1200	2636	cmmon32.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	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmmon32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
2832	schtasks.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe
1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe
2260	powershell.exe
2804	powershell.exe
2652	RegSvcs.exe
2652	RegSvcs.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe
2636	cmmon32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2652	RegSvcs.exe
2652	RegSvcs.exe
2652	RegSvcs.exe
2636	cmmon32.exe
2636	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe
Token: SeDebugPrivilege	2260	powershell.exe
Token: SeDebugPrivilege	2804	powershell.exe
Token: SeDebugPrivilege	2652	RegSvcs.exe
Token: SeDebugPrivilege	2636	cmmon32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 2804	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	31
PID 1956 wrote to memory of 2804	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	31
PID 1956 wrote to memory of 2804	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	31
PID 1956 wrote to memory of 2804	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	31
PID 1956 wrote to memory of 2260	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	33
PID 1956 wrote to memory of 2260	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	33
PID 1956 wrote to memory of 2260	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	33
PID 1956 wrote to memory of 2260	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	33
PID 1956 wrote to memory of 2832	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	35
PID 1956 wrote to memory of 2832	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	35
PID 1956 wrote to memory of 2832	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	35
PID 1956 wrote to memory of 2832	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	35
PID 1956 wrote to memory of 2652	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	37
PID 1956 wrote to memory of 2652	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	37
PID 1956 wrote to memory of 2652	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	37
PID 1956 wrote to memory of 2652	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	37
PID 1956 wrote to memory of 2652	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	37
PID 1956 wrote to memory of 2652	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	37
PID 1956 wrote to memory of 2652	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	37
PID 1956 wrote to memory of 2652	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	37
PID 1956 wrote to memory of 2652	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	37
PID 1956 wrote to memory of 2652	1956	339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe	37
PID 1200 wrote to memory of 2636	1200	Explorer.EXE	38
PID 1200 wrote to memory of 2636	1200	Explorer.EXE	38
PID 1200 wrote to memory of 2636	1200	Explorer.EXE	38
PID 1200 wrote to memory of 2636	1200	Explorer.EXE	38
PID 2636 wrote to memory of 2212	2636	cmmon32.exe	39
PID 2636 wrote to memory of 2212	2636	cmmon32.exe	39
PID 2636 wrote to memory of 2212	2636	cmmon32.exe	39
PID 2636 wrote to memory of 2212	2636	cmmon32.exe	39

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Users\Admin\AppData\Local\Temp\339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe
  "C:\Users\Admin\AppData\Local\Temp\339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1956
- - 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\339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2804
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\iWxVkVDQYvd.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2260
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iWxVkVDQYvd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFAC3.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2832
- - 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:2652
- C:\Windows\SysWOW64\cmmon32.exe
  "C:\Windows\SysWOW64\cmmon32.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:2636
- - 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:2212

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\tmpFAC3.tmp

Filesize
1KB

MD5
f288207bbb00ddd4d4e28cb70461ceb6

SHA1
5f812b04d7f56bef4bdbc5c0255175797bef080e

SHA256
abfdff477a988a1571406b3f45e3bf84c74dbf30e15aa4f009857e59966ffb5a

SHA512
2b08a8a01fe333480158d74f4ab9e9d42c8e5e85bc2230fafd3b18055d18f70d94eab8f379dc4839725a302bdd861622995a39a226466d1144191e7ce0d890e5

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

Filesize
7KB

MD5
8c73494abe22386dc840b5ce9db61021

SHA1
109f9931390f7b1392340f3a549ddae8df0d59eb

SHA256
21d3cf4ec064e9c239b6a41feab068869b27127348954961427a7b27fd3de7f8

SHA512
7e9d3c533928e280bd97ca150e7b46a9f1f75f77761221c574f4fa55d74085464515d9266c1ebf3ad7469de86ccf30462ff4bc7e35a0c3a14d980e147d8a94e6

Download Submit
memory/1200-31-0x00000000043F0000-0x00000000045F0000-memory.dmp

Filesize
2.0MB

Download
memory/1200-27-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1956-4-0x000000007463E000-0x000000007463F000-memory.dmp

Filesize
4KB

Download
memory/1956-2-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/1956-6-0x0000000000380000-0x00000000003F8000-memory.dmp

Filesize
480KB

Download
memory/1956-0-0x000000007463E000-0x000000007463F000-memory.dmp

Filesize
4KB

Download
memory/1956-3-0x00000000005E0000-0x0000000000606000-memory.dmp

Filesize
152KB

Download
memory/1956-1-0x0000000000FB0000-0x0000000001070000-memory.dmp

Filesize
768KB

Download
memory/1956-5-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/1956-25-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2636-28-0x00000000004D0000-0x00000000004DD000-memory.dmp

Filesize
52KB

Download
memory/2636-29-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/2652-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2652-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2652-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2652-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download