formbook | 27a679cdef391d8ce43578cd9e160b07cc8e6f2356e224b3ca1cfef7a163584c

Analysis

max time kernel
147s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-01-2025 13:39

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General

Target

467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe
Size

651KB
MD5

9ecbdf4d5174c3da835a2a7829e06773
SHA1

734529d1583291a87ff3cfc8895705e374f0091a
SHA256

467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7
SHA512

06ce5f9f79ed67731552a64fd4d730512cf10a1b006d3b4e258f357f85d8288e1c8862e4f2e8460ee58ef6ec138ae68b161372443c5091dfb4460f584fb49317
SSDEEP

12288:djz40GsIZC+9koIrfqUe1FOB/Uy4d8+1Aeh1bWwU6RnPsdx90:m3GXoIBe1FOf4dOCnPs

Score

10^/10

formbook b02a discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

b02a

Decoy

nnovate.host

yrvo.shop

obify.party

55665.one

vlisazouasiul.store

arjohbs.shop

mjsccc5716.shop

nfluencer-marketing-86606.bond

atellite-internet-74549.bond

arehouse-inventory-82506.bond

kanzaturf.net

airbypatrickmcguire.net

90880a15.buzz

ancake888.info

hopcroma.store

usinessloanscanada524285.icu

mdjr.world

9kct.xyz

ombrd.finance

luratu.xyz

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/2720-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2684-28-0x0000000000090000-0x00000000000BF000-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
2896	powershell.exe
2752	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2376 set thread context of 2720	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	37
PID 2720 set thread context of 1200	2720	RegSvcs.exe	21
PID 2684 set thread context of 1200	2684	cmstp.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	cmstp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.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
2836	schtasks.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe
2896	powershell.exe
2752	powershell.exe
2720	RegSvcs.exe
2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe
2720	RegSvcs.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe
2684	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2720	RegSvcs.exe
2720	RegSvcs.exe
2720	RegSvcs.exe
2684	cmstp.exe
2684	cmstp.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe
Token: SeDebugPrivilege	2896	powershell.exe
Token: SeDebugPrivilege	2752	powershell.exe
Token: SeDebugPrivilege	2720	RegSvcs.exe
Token: SeDebugPrivilege	2684	cmstp.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 2896	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	31
PID 2376 wrote to memory of 2896	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	31
PID 2376 wrote to memory of 2896	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	31
PID 2376 wrote to memory of 2896	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	31
PID 2376 wrote to memory of 2752	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	33
PID 2376 wrote to memory of 2752	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	33
PID 2376 wrote to memory of 2752	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	33
PID 2376 wrote to memory of 2752	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	33
PID 2376 wrote to memory of 2836	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	35
PID 2376 wrote to memory of 2836	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	35
PID 2376 wrote to memory of 2836	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	35
PID 2376 wrote to memory of 2836	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	35
PID 2376 wrote to memory of 2720	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	37
PID 2376 wrote to memory of 2720	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	37
PID 2376 wrote to memory of 2720	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	37
PID 2376 wrote to memory of 2720	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	37
PID 2376 wrote to memory of 2720	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	37
PID 2376 wrote to memory of 2720	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	37
PID 2376 wrote to memory of 2720	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	37
PID 2376 wrote to memory of 2720	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	37
PID 2376 wrote to memory of 2720	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	37
PID 2376 wrote to memory of 2720	2376	467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe	37
PID 1200 wrote to memory of 2684	1200	Explorer.EXE	38
PID 1200 wrote to memory of 2684	1200	Explorer.EXE	38
PID 1200 wrote to memory of 2684	1200	Explorer.EXE	38
PID 1200 wrote to memory of 2684	1200	Explorer.EXE	38
PID 1200 wrote to memory of 2684	1200	Explorer.EXE	38
PID 1200 wrote to memory of 2684	1200	Explorer.EXE	38
PID 1200 wrote to memory of 2684	1200	Explorer.EXE	38
PID 2684 wrote to memory of 2600	2684	cmstp.exe	39
PID 2684 wrote to memory of 2600	2684	cmstp.exe	39
PID 2684 wrote to memory of 2600	2684	cmstp.exe	39
PID 2684 wrote to memory of 2600	2684	cmstp.exe	39

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Users\Admin\AppData\Local\Temp\467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe
  "C:\Users\Admin\AppData\Local\Temp\467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2376
- - 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\467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2896
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zykAUGFBtng.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2752
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zykAUGFBtng" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAF9.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2836
- - 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:2720
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.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:2684
- - 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:2600

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\tmpAF9.tmp

Filesize
1KB

MD5
ac63e7bf1aa704f269bfd6f5910a7573

SHA1
0879dd0ff504a8eb37aef31b4811375c7e8244d2

SHA256
c74d8b97995fb6d5f611f845df06ff651064b6144af37445cf8c013f65e14249

SHA512
62ec4be60ee5ad254713398a887e46bd539b4c75629b8aef0ca3e404700ff1b2d85ddb0943d94a588208cfa9e78f0f013122ee62b8ca7e5cd5397369e34138be

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

Filesize
7KB

MD5
15db47624768379252c7eab136b6dcab

SHA1
857be341d1d712d2455fadab279f8074138f3a1c

SHA256
384e358074fd014c6178b72a138303b4fc06b61f456681cdf6b35f2720fd8a0a

SHA512
0108e358fd266d610f11eace685431efed728417b7faf3bfe401926d3c6b20bea6af9793d7b84b08de97020853b8d3d23562f9ffa34b0e9ebe1862963dfd7559

Download Submit
memory/2376-4-0x0000000074ADE000-0x0000000074ADF000-memory.dmp

Filesize
4KB

Download
memory/2376-26-0x0000000074AD0000-0x00000000751BE000-memory.dmp

Filesize
6.9MB

Download
memory/2376-0-0x0000000074ADE000-0x0000000074ADF000-memory.dmp

Filesize
4KB

Download
memory/2376-5-0x0000000074AD0000-0x00000000751BE000-memory.dmp

Filesize
6.9MB

Download
memory/2376-6-0x00000000001F0000-0x0000000000268000-memory.dmp

Filesize
480KB

Download
memory/2376-2-0x0000000074AD0000-0x00000000751BE000-memory.dmp

Filesize
6.9MB

Download
memory/2376-1-0x00000000011B0000-0x000000000125A000-memory.dmp

Filesize
680KB

Download
memory/2376-3-0x00000000004C0000-0x00000000004DE000-memory.dmp

Filesize
120KB

Download
memory/2684-28-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/2684-27-0x0000000000560000-0x0000000000578000-memory.dmp

Filesize
96KB

Download
memory/2720-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2720-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2720-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2720-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download