formbook | 4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a

Analysis

max time kernel
148s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15/01/2025, 02:31

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General

Target

4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe
Size

647KB
MD5

d9d98d244f3d4779c8aa532562ffb536
SHA1

594abbcf69862f343c0ce75716da5607ab6bbaed
SHA256

4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a
SHA512

4807098ae5e3db0b40e32c7cc053580202922cc3cc1374aacfa5d767e3ca2d94255d029865a6351233b613835d06068011a0ea15acad620256137c8ed826ce96
SSDEEP

12288:+YRxA4Y5lyA/BxSPCgPGT5GrNz72lYBjonsMqfGx7OnOSSGsR8CleigAVJTsxZtK:ZROUrF8K0qq0OEfCQjUszE

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
behavioral2/memory/3320-35-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3728-91-0x0000000000610000-0x000000000063F000-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
2036	powershell.exe
3724	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4524 set thread context of 3320	4524	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	102
PID 3320 set thread context of 3460	3320	MSBuild.exe	56
PID 3728 set thread context of 3460	3728	cmstp.exe	56

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	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	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
3704	schtasks.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
4524	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe
2036	powershell.exe
3724	powershell.exe
4524	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe
3320	MSBuild.exe
3320	MSBuild.exe
3320	MSBuild.exe
3320	MSBuild.exe
2036	powershell.exe
3724	powershell.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe
3728	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
3320	MSBuild.exe
3320	MSBuild.exe
3320	MSBuild.exe
3728	cmstp.exe
3728	cmstp.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	4524	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe
Token: SeDebugPrivilege	2036	powershell.exe
Token: SeDebugPrivilege	3724	powershell.exe
Token: SeDebugPrivilege	3320	MSBuild.exe
Token: SeDebugPrivilege	3728	cmstp.exe
Token: SeShutdownPrivilege	3460	Explorer.EXE
Token: SeCreatePagefilePrivilege	3460	Explorer.EXE
Token: SeShutdownPrivilege	3460	Explorer.EXE
Token: SeCreatePagefilePrivilege	3460	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4524 wrote to memory of 2036	4524	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	96
PID 4524 wrote to memory of 2036	4524	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	96
PID 4524 wrote to memory of 2036	4524	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	96
PID 4524 wrote to memory of 3724	4524	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	98
PID 4524 wrote to memory of 3724	4524	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	98
PID 4524 wrote to memory of 3724	4524	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	98
PID 4524 wrote to memory of 3704	4524	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	100
PID 4524 wrote to memory of 3704	4524	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	100
PID 4524 wrote to memory of 3704	4524	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	100
PID 4524 wrote to memory of 3320	4524	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	102
PID 4524 wrote to memory of 3320	4524	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	102
PID 4524 wrote to memory of 3320	4524	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	102
PID 4524 wrote to memory of 3320	4524	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	102
PID 4524 wrote to memory of 3320	4524	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	102
PID 4524 wrote to memory of 3320	4524	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	102
PID 3460 wrote to memory of 3728	3460	Explorer.EXE	103
PID 3460 wrote to memory of 3728	3460	Explorer.EXE	103
PID 3460 wrote to memory of 3728	3460	Explorer.EXE	103
PID 3728 wrote to memory of 3576	3728	cmstp.exe	104
PID 3728 wrote to memory of 3576	3728	cmstp.exe	104
PID 3728 wrote to memory of 3576	3728	cmstp.exe	104

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3460
- C:\Users\Admin\AppData\Local\Temp\4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe
  "C:\Users\Admin\AppData\Local\Temp\4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4524
- - 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\4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2036
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\xnnxAkrxh.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3724
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xnnxAkrxh" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDF83.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3704
- - 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:3320
- 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:3728
- - 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:3576

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

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
2dcc7c1ea8a2c10b1fb7588219cfc6a9

SHA1
e4dee9135ab4cf31722727245db02ff1bf817247

SHA256
3ce3eff69931b9c00df2273ff6910d316062ad0c16788e227490dfff82e79518

SHA512
89cdf1a78d727481406e331f828906edeb81051b90eaa5468750374b2080ccd777bc3bb3cb1752a884c9b07f9aa70249c99c031439f5d6883f7f44da3c114ad3

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_atxcz3jo.ejy.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDF83.tmp

Filesize
1KB

MD5
265c9fca53753527282ce3a4ebad4c78

SHA1
f3b862f7a58d87ab55fe673a47cbd7be1d7e3e4c

SHA256
d89bec8a390e238f0628d24692ed2c448b621f4d49ed69d47bc7126600d4cb6e

SHA512
0c825a221edd35726364c08bc33c9fb3d5fa044699d145ccd63d646696696d1758ab7749466066f040106eb998a11191d984e62ab5786d4059c5c1248ad58433

Download Submit
memory/2036-81-0x00000000073D0000-0x00000000073E4000-memory.dmp

Filesize
80KB

Download
memory/2036-49-0x0000000005E40000-0x0000000005E5E000-memory.dmp

Filesize
120KB

Download
memory/2036-83-0x00000000074B0000-0x00000000074B8000-memory.dmp

Filesize
32KB

Download
memory/2036-82-0x00000000074D0000-0x00000000074EA000-memory.dmp

Filesize
104KB

Download
memory/2036-75-0x0000000007190000-0x00000000071AA000-memory.dmp

Filesize
104KB

Download
memory/2036-80-0x00000000073C0000-0x00000000073CE000-memory.dmp

Filesize
56KB

Download
memory/2036-79-0x0000000007390000-0x00000000073A1000-memory.dmp

Filesize
68KB

Download
memory/2036-15-0x00000000048B0000-0x00000000048E6000-memory.dmp

Filesize
216KB

Download
memory/2036-17-0x0000000004F20000-0x0000000005548000-memory.dmp

Filesize
6.2MB

Download
memory/2036-16-0x0000000074DC0000-0x0000000075570000-memory.dmp

Filesize
7.7MB

Download
memory/2036-18-0x0000000074DC0000-0x0000000075570000-memory.dmp

Filesize
7.7MB

Download
memory/2036-73-0x0000000007030000-0x00000000070D3000-memory.dmp

Filesize
652KB

Download
memory/2036-63-0x00000000063C0000-0x00000000063DE000-memory.dmp

Filesize
120KB

Download
memory/2036-21-0x0000000004E90000-0x0000000004EB2000-memory.dmp

Filesize
136KB

Download
memory/2036-51-0x0000000006DF0000-0x0000000006E22000-memory.dmp

Filesize
200KB

Download
memory/2036-52-0x0000000075650000-0x000000007569C000-memory.dmp

Filesize
304KB

Download
memory/2036-30-0x0000000005830000-0x0000000005896000-memory.dmp

Filesize
408KB

Download
memory/2036-50-0x00000000063E0000-0x000000000642C000-memory.dmp

Filesize
304KB

Download
memory/2036-29-0x00000000057C0000-0x0000000005826000-memory.dmp

Filesize
408KB

Download
memory/2036-36-0x00000000059A0000-0x0000000005CF4000-memory.dmp

Filesize
3.3MB

Download
memory/2036-78-0x0000000007410000-0x00000000074A6000-memory.dmp

Filesize
600KB

Download
memory/2036-86-0x0000000074DC0000-0x0000000075570000-memory.dmp

Filesize
7.7MB

Download
memory/3320-35-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3460-95-0x0000000008B00000-0x0000000008C47000-memory.dmp

Filesize
1.3MB

Download
memory/3724-23-0x0000000074DC0000-0x0000000075570000-memory.dmp

Filesize
7.7MB

Download
memory/3724-22-0x0000000074DC0000-0x0000000075570000-memory.dmp

Filesize
7.7MB

Download
memory/3724-90-0x0000000074DC0000-0x0000000075570000-memory.dmp

Filesize
7.7MB

Download
memory/3724-58-0x0000000075650000-0x000000007569C000-memory.dmp

Filesize
304KB

Download
memory/3724-19-0x0000000074DC0000-0x0000000075570000-memory.dmp

Filesize
7.7MB

Download
memory/3724-74-0x0000000007900000-0x0000000007F7A000-memory.dmp

Filesize
6.5MB

Download
memory/3724-76-0x00000000073B0000-0x00000000073BA000-memory.dmp

Filesize
40KB

Download
memory/3728-77-0x0000000000E60000-0x0000000000E76000-memory.dmp

Filesize
88KB

Download
memory/3728-91-0x0000000000610000-0x000000000063F000-memory.dmp

Filesize
188KB

Download
memory/4524-6-0x0000000004FA0000-0x0000000004FBA000-memory.dmp

Filesize
104KB

Download
memory/4524-10-0x0000000009D50000-0x0000000009DEC000-memory.dmp

Filesize
624KB

Download
memory/4524-9-0x0000000007620000-0x0000000007698000-memory.dmp

Filesize
480KB

Download
memory/4524-8-0x0000000074DC0000-0x0000000075570000-memory.dmp

Filesize
7.7MB

Download
memory/4524-7-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

Filesize
4KB

Download
memory/4524-0-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

Filesize
4KB

Download
memory/4524-5-0x0000000074DC0000-0x0000000075570000-memory.dmp

Filesize
7.7MB

Download
memory/4524-4-0x0000000004CC0000-0x0000000004CCA000-memory.dmp

Filesize
40KB

Download
memory/4524-3-0x0000000004D10000-0x0000000004DA2000-memory.dmp

Filesize
584KB

Download
memory/4524-2-0x0000000005220000-0x00000000057C4000-memory.dmp

Filesize
5.6MB

Download
memory/4524-39-0x0000000074DC0000-0x0000000075570000-memory.dmp

Filesize
7.7MB

Download
memory/4524-1-0x0000000000350000-0x00000000003F8000-memory.dmp

Filesize
672KB

Download