formbook | 1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c

Analysis

max time kernel
150s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
24/07/2024, 18:57

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General

Target

1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe
Size

831KB
MD5

5ca90548bfafebd308ac134e049c334c
SHA1

bf538269ba7f53b4bb1ceac79c7a7f296b7e2715
SHA256

1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c
SHA512

eb9592d086a537290263770f5b7edc7f1dc679aaf22dd592763211794cc0433be770ce52b3116a3a9bee9d1846b8c33972a437d6ee73db9d6646c4a16c078f76
SSDEEP

24576:v/1zRDvw29GtsBaF0wqlK/qhgT/qLU1GYlafA:vtdw20tP0dlYZ/qLUWfA

Score

10^/10

formbook md02 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

md02

Decoy

onsen1508.com

partymaxclubmen36.click

texasshelvingwarehouse.com

tiantiying.com

taxcredits-pr.com

33mgbet.com

equipoleiremnacional.com

andrewghita.com

zbbnp.xyz

englandbreaking.com

a1b5v.xyz

vizamag.com

h0lg3.rest

ux-design-courses-17184.bond

of84.top

qqkartel88v1.com

avalynkate.com

cpuk-finance.com

yeslabs.xyz

webuyandsellpa.com

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral2/memory/3760-40-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1116-96-0x0000000000970000-0x000000000099F000-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
3372	powershell.exe
3656	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-1-5-21-2650514177-1034912467-4025611726-1000\Control Panel\International\Geo\Nation	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4020 set thread context of 3760	4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe	101
PID 3760 set thread context of 3456	3760	RegSvcs.exe	56
PID 1116 set thread context of 3456	1116	msiexec.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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.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
3076	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe
4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe
4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe
4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe
4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe
4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe
4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe
4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe
3656	powershell.exe
3656	powershell.exe
3372	powershell.exe
3372	powershell.exe
4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe
4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe
3760	RegSvcs.exe
3760	RegSvcs.exe
3656	powershell.exe
3372	powershell.exe
3760	RegSvcs.exe
3760	RegSvcs.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe
1116	msiexec.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
3760	RegSvcs.exe
3760	RegSvcs.exe
3760	RegSvcs.exe
1116	msiexec.exe
1116	msiexec.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe
Token: SeDebugPrivilege	3372	powershell.exe
Token: SeDebugPrivilege	3656	powershell.exe
Token: SeDebugPrivilege	3760	RegSvcs.exe
Token: SeDebugPrivilege	1116	msiexec.exe
Token: SeShutdownPrivilege	3456	Explorer.EXE
Token: SeCreatePagefilePrivilege	3456	Explorer.EXE
Token: SeShutdownPrivilege	3456	Explorer.EXE
Token: SeCreatePagefilePrivilege	3456	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3456	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4020 wrote to memory of 3372	4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe	95
PID 4020 wrote to memory of 3372	4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe	95
PID 4020 wrote to memory of 3372	4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe	95
PID 4020 wrote to memory of 3656	4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe	97
PID 4020 wrote to memory of 3656	4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe	97
PID 4020 wrote to memory of 3656	4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe	97
PID 4020 wrote to memory of 3076	4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe	99
PID 4020 wrote to memory of 3076	4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe	99
PID 4020 wrote to memory of 3076	4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe	99
PID 4020 wrote to memory of 3760	4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe	101
PID 4020 wrote to memory of 3760	4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe	101
PID 4020 wrote to memory of 3760	4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe	101
PID 4020 wrote to memory of 3760	4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe	101
PID 4020 wrote to memory of 3760	4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe	101
PID 4020 wrote to memory of 3760	4020	1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe	101
PID 3456 wrote to memory of 1116	3456	Explorer.EXE	102
PID 3456 wrote to memory of 1116	3456	Explorer.EXE	102
PID 3456 wrote to memory of 1116	3456	Explorer.EXE	102
PID 1116 wrote to memory of 4320	1116	msiexec.exe	104
PID 1116 wrote to memory of 4320	1116	msiexec.exe	104
PID 1116 wrote to memory of 4320	1116	msiexec.exe	104

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3456
- C:\Users\Admin\AppData\Local\Temp\1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe
  "C:\Users\Admin\AppData\Local\Temp\1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.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:4020
- - 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\1541552b46b3b5a0d35698ce1d6bde3da40971bfda8d65897b2d6f343d815e3c.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3372
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\cqvYbdRxczOjiH.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3656
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cqvYbdRxczOjiH" /XML "C:\Users\Admin\AppData\Local\Temp\tmp21CB.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3076
- - 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:3760
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.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:1116
- - 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:4320

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

Replay Monitor

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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
4bddc7d6ad2f56e0747508a546f4521d

SHA1
9da0e6eb1729d52e17c6dce9e1f2038386f9315f

SHA256
67bf1d8dbc6864e65d36c6e15690d08880c4081b72ee5aa71da5a24d975c3d53

SHA512
16cc681d84c64f7e6f51048b850d279aff473ba660d8902394c59810a780288e0f3898675839fb28ab81dc946b0dd52935385fb31b780eff822d6b26a6a17098

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ek2qords.5ty.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp21CB.tmp

Filesize
1KB

MD5
1a629a10600ab1409e9366b8b47d638e

SHA1
483565e47bc60a6d341055b9fa9ece8ae029e777

SHA256
1d366970baba6931bd2385785503271b82712e63d9e0bedcca83799d6628ded4

SHA512
1a1f4b07998c7f514e024744f7a666ce48aa94dbb4b3da0319066862fd137547628cc1cce08328e16bfb37420570ed70da768a4867535899ffc9f0fadc5c47be

Download Submit
memory/1116-85-0x0000000000260000-0x0000000000272000-memory.dmp

Filesize
72KB

Download
memory/1116-96-0x0000000000970000-0x000000000099F000-memory.dmp

Filesize
188KB

Download
memory/1116-86-0x0000000000260000-0x0000000000272000-memory.dmp

Filesize
72KB

Download
memory/1116-88-0x0000000000260000-0x0000000000272000-memory.dmp

Filesize
72KB

Download
memory/3372-81-0x0000000007940000-0x000000000794E000-memory.dmp

Filesize
56KB

Download
memory/3372-84-0x0000000007A30000-0x0000000007A38000-memory.dmp

Filesize
32KB

Download
memory/3372-94-0x0000000074520000-0x0000000074CD0000-memory.dmp

Filesize
7.7MB

Download
memory/3372-77-0x0000000007710000-0x000000000772A000-memory.dmp

Filesize
104KB

Download
memory/3372-54-0x0000000074DB0000-0x0000000074DFC000-memory.dmp

Filesize
304KB

Download
memory/3372-17-0x0000000004E50000-0x0000000004E86000-memory.dmp

Filesize
216KB

Download
memory/3372-19-0x0000000074520000-0x0000000074CD0000-memory.dmp

Filesize
7.7MB

Download
memory/3372-18-0x0000000005560000-0x0000000005B88000-memory.dmp

Filesize
6.2MB

Download
memory/3372-20-0x0000000074520000-0x0000000074CD0000-memory.dmp

Filesize
7.7MB

Download
memory/3372-24-0x0000000005B90000-0x0000000005BF6000-memory.dmp

Filesize
408KB

Download
memory/3372-23-0x0000000005310000-0x0000000005332000-memory.dmp

Filesize
136KB

Download
memory/3372-25-0x0000000005C80000-0x0000000005CE6000-memory.dmp

Filesize
408KB

Download
memory/3456-99-0x0000000008620000-0x0000000008725000-memory.dmp

Filesize
1.0MB

Download
memory/3656-79-0x0000000007D90000-0x0000000007E26000-memory.dmp

Filesize
600KB

Download
memory/3656-83-0x0000000007E50000-0x0000000007E6A000-memory.dmp

Filesize
104KB

Download
memory/3656-22-0x0000000074520000-0x0000000074CD0000-memory.dmp

Filesize
7.7MB

Download
memory/3656-30-0x0000000006200000-0x0000000006554000-memory.dmp

Filesize
3.3MB

Download
memory/3656-82-0x0000000007D50000-0x0000000007D64000-memory.dmp

Filesize
80KB

Download
memory/3656-21-0x0000000074520000-0x0000000074CD0000-memory.dmp

Filesize
7.7MB

Download
memory/3656-95-0x0000000074520000-0x0000000074CD0000-memory.dmp

Filesize
7.7MB

Download
memory/3656-51-0x00000000067E0000-0x00000000067FE000-memory.dmp

Filesize
120KB

Download
memory/3656-52-0x0000000006DB0000-0x0000000006DFC000-memory.dmp

Filesize
304KB

Download
memory/3656-80-0x0000000007D10000-0x0000000007D21000-memory.dmp

Filesize
68KB

Download
memory/3656-55-0x0000000074DB0000-0x0000000074DFC000-memory.dmp

Filesize
304KB

Download
memory/3656-53-0x00000000077D0000-0x0000000007802000-memory.dmp

Filesize
200KB

Download
memory/3656-74-0x0000000006D30000-0x0000000006D4E000-memory.dmp

Filesize
120KB

Download
memory/3656-75-0x0000000007A10000-0x0000000007AB3000-memory.dmp

Filesize
652KB

Download
memory/3656-76-0x0000000008150000-0x00000000087CA000-memory.dmp

Filesize
6.5MB

Download
memory/3656-27-0x0000000074520000-0x0000000074CD0000-memory.dmp

Filesize
7.7MB

Download
memory/3656-78-0x0000000007B80000-0x0000000007B8A000-memory.dmp

Filesize
40KB

Download
memory/3760-40-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4020-11-0x000000007452E000-0x000000007452F000-memory.dmp

Filesize
4KB

Download
memory/4020-10-0x0000000006A70000-0x0000000006B0C000-memory.dmp

Filesize
624KB

Download
memory/4020-0-0x000000007452E000-0x000000007452F000-memory.dmp

Filesize
4KB

Download
memory/4020-12-0x0000000074520000-0x0000000074CD0000-memory.dmp

Filesize
7.7MB

Download
memory/4020-9-0x0000000006960000-0x00000000069D6000-memory.dmp

Filesize
472KB

Download
memory/4020-8-0x0000000002FA0000-0x0000000002FAC000-memory.dmp

Filesize
48KB

Download
memory/4020-7-0x00000000059D0000-0x00000000059D8000-memory.dmp

Filesize
32KB

Download
memory/4020-6-0x0000000008130000-0x000000000814A000-memory.dmp

Filesize
104KB

Download
memory/4020-5-0x0000000074520000-0x0000000074CD0000-memory.dmp

Filesize
7.7MB

Download
memory/4020-49-0x0000000074520000-0x0000000074CD0000-memory.dmp

Filesize
7.7MB

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memory/4020-4-0x00000000057E0000-0x00000000057EA000-memory.dmp

Filesize
40KB

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memory/4020-3-0x0000000005720000-0x00000000057B2000-memory.dmp

Filesize
584KB

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memory/4020-2-0x0000000005DB0000-0x0000000006354000-memory.dmp

Filesize
5.6MB

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memory/4020-1-0x0000000000C70000-0x0000000000D46000-memory.dmp

Filesize
856KB

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