formbook | 1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1

Analysis

max time kernel
145s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27/08/2024, 16:54

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General

Target

1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe
Size

645KB
MD5

bacaf023d27109a446220e48b7a1c60e
SHA1

ddaec29b4f7dc71f6826aebd845e81c30dd09146
SHA256

1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1
SHA512

b154ba5afb5b02fa2a7beb0d64cc519315e4c227b6c87b4c7ae38c526285215e5cc03b685d72354eb1da7d01d987933adcebcce04710848a6f9aa3667690c51b
SSDEEP

12288:ycvIGc21SUSSRsyVjLu77HUd4DNFP5V4mHlcOH97OEWzm/WejH7xWsXWHWY6jRGc:fx4o2yVjC77m4DNB5V4mHlcW9yEzvX1f

Score

10^/10

formbook m49z discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

m49z

Decoy

ormswarm.xyz

awn-care-63587.bond

uymetanail5.online

mergencyloan007.xyz

545.top

eiliao596.pro

ackersandmoverschennai.net

ehdiahmadvandmusicbest.click

tlgxmb2024.cloud

ulfcoastharborhopper.pro

rohns-disease-early-signs.today

oldenhorizonsbgcl.click

weetindulgencepro.xyz

yexoiup.xyz

yself-solar.net

kfirsatimla.online

bropub3.online

ouljourney.online

usvf76f.shop

onnaberich.online

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/4068-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4068-21-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1672-70-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
4204	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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4540 set thread context of 4068	4540	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	95
PID 4068 set thread context of 3396	4068	RegSvcs.exe	56
PID 1672 set thread context of 3396	1672	NETSTAT.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 4 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	NETSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
1672	NETSTAT.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-1-5-21-2412658365-3084825385-3340777666-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 58 IoCs

pid	Process
4068	RegSvcs.exe
4068	RegSvcs.exe
4068	RegSvcs.exe
4068	RegSvcs.exe
4204	powershell.exe
4204	powershell.exe
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE
1672	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4068	RegSvcs.exe
4068	RegSvcs.exe
4068	RegSvcs.exe
1672	NETSTAT.EXE
1672	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 13 IoCs

description	pid	Process
Token: SeDebugPrivilege	4068	RegSvcs.exe
Token: SeDebugPrivilege	4204	powershell.exe
Token: SeDebugPrivilege	1672	NETSTAT.EXE
Token: SeShutdownPrivilege	3396	Explorer.EXE
Token: SeCreatePagefilePrivilege	3396	Explorer.EXE
Token: SeShutdownPrivilege	3396	Explorer.EXE
Token: SeCreatePagefilePrivilege	3396	Explorer.EXE
Token: SeShutdownPrivilege	3396	Explorer.EXE
Token: SeCreatePagefilePrivilege	3396	Explorer.EXE
Token: SeShutdownPrivilege	3396	Explorer.EXE
Token: SeCreatePagefilePrivilege	3396	Explorer.EXE
Token: SeShutdownPrivilege	3396	Explorer.EXE
Token: SeCreatePagefilePrivilege	3396	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3396	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4540 wrote to memory of 4204	4540	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	93
PID 4540 wrote to memory of 4204	4540	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	93
PID 4540 wrote to memory of 4204	4540	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	93
PID 4540 wrote to memory of 4068	4540	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	95
PID 4540 wrote to memory of 4068	4540	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	95
PID 4540 wrote to memory of 4068	4540	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	95
PID 4540 wrote to memory of 4068	4540	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	95
PID 4540 wrote to memory of 4068	4540	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	95
PID 4540 wrote to memory of 4068	4540	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	95
PID 3396 wrote to memory of 1672	3396	Explorer.EXE	96
PID 3396 wrote to memory of 1672	3396	Explorer.EXE	96
PID 3396 wrote to memory of 1672	3396	Explorer.EXE	96
PID 1672 wrote to memory of 3300	1672	NETSTAT.EXE	97
PID 1672 wrote to memory of 3300	1672	NETSTAT.EXE	97
PID 1672 wrote to memory of 3300	1672	NETSTAT.EXE	97

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:3396
- C:\Users\Admin\AppData\Local\Temp\1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe
  "C:\Users\Admin\AppData\Local\Temp\1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4540
- - 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\1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4204
- - 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:4068
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1672
- - 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:3300

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

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\Temp\__PSScriptPolicyTest_rb21dh5q.3a2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1672-70-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1672-65-0x0000000000EC0000-0x0000000000ECB000-memory.dmp

Filesize
44KB

Download
memory/1672-66-0x0000000000EC0000-0x0000000000ECB000-memory.dmp

Filesize
44KB

Download
memory/3396-75-0x0000000008CC0000-0x0000000008E1F000-memory.dmp

Filesize
1.4MB

Download
memory/3396-71-0x0000000003350000-0x000000000343A000-memory.dmp

Filesize
936KB

Download
memory/3396-24-0x0000000003350000-0x000000000343A000-memory.dmp

Filesize
936KB

Download
memory/4068-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4068-19-0x0000000001890000-0x0000000001BDA000-memory.dmp

Filesize
3.3MB

Download
memory/4068-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4068-22-0x0000000001860000-0x0000000001874000-memory.dmp

Filesize
80KB

Download
memory/4204-27-0x00000000056A0000-0x0000000005706000-memory.dmp

Filesize
408KB

Download
memory/4204-61-0x0000000007220000-0x000000000722E000-memory.dmp

Filesize
56KB

Download
memory/4204-67-0x00000000747AE000-0x00000000747AF000-memory.dmp

Filesize
4KB

Download
memory/4204-15-0x00000000747AE000-0x00000000747AF000-memory.dmp

Filesize
4KB

Download
memory/4204-17-0x0000000004730000-0x0000000004766000-memory.dmp

Filesize
216KB

Download
memory/4204-18-0x0000000004EC0000-0x00000000054E8000-memory.dmp

Filesize
6.2MB

Download
memory/4204-64-0x0000000007310000-0x0000000007318000-memory.dmp

Filesize
32KB

Download
memory/4204-23-0x0000000004880000-0x0000000004890000-memory.dmp

Filesize
64KB

Download
memory/4204-63-0x0000000007330000-0x000000000734A000-memory.dmp

Filesize
104KB

Download
memory/4204-62-0x0000000007230000-0x0000000007244000-memory.dmp

Filesize
80KB

Download
memory/4204-20-0x0000000004880000-0x0000000004890000-memory.dmp

Filesize
64KB

Download
memory/4204-60-0x00000000071F0000-0x0000000007201000-memory.dmp

Filesize
68KB

Download
memory/4204-25-0x0000000004C10000-0x0000000004C32000-memory.dmp

Filesize
136KB

Download
memory/4204-26-0x0000000004DB0000-0x0000000004E16000-memory.dmp

Filesize
408KB

Download
memory/4204-59-0x0000000007270000-0x0000000007306000-memory.dmp

Filesize
600KB

Download
memory/4204-58-0x0000000007060000-0x000000000706A000-memory.dmp

Filesize
40KB

Download
memory/4204-37-0x0000000005710000-0x0000000005A64000-memory.dmp

Filesize
3.3MB

Download
memory/4204-38-0x0000000005CC0000-0x0000000005CDE000-memory.dmp

Filesize
120KB

Download
memory/4204-39-0x0000000005D00000-0x0000000005D4C000-memory.dmp

Filesize
304KB

Download
memory/4204-40-0x000000007F580000-0x000000007F590000-memory.dmp

Filesize
64KB

Download
memory/4204-41-0x0000000006290000-0x00000000062C2000-memory.dmp

Filesize
200KB

Download
memory/4204-42-0x0000000070660000-0x00000000706AC000-memory.dmp

Filesize
304KB

Download
memory/4204-49-0x0000000004880000-0x0000000004890000-memory.dmp

Filesize
64KB

Download
memory/4204-48-0x0000000004880000-0x0000000004890000-memory.dmp

Filesize
64KB

Download
memory/4204-54-0x0000000006E90000-0x0000000006EAE000-memory.dmp

Filesize
120KB

Download
memory/4204-55-0x0000000006EB0000-0x0000000006F53000-memory.dmp

Filesize
652KB

Download
memory/4204-56-0x0000000007630000-0x0000000007CAA000-memory.dmp

Filesize
6.5MB

Download
memory/4204-57-0x0000000006FF0000-0x000000000700A000-memory.dmp

Filesize
104KB

Download
memory/4540-10-0x0000000005600000-0x0000000005610000-memory.dmp

Filesize
64KB

Download
memory/4540-0-0x00000000747AE000-0x00000000747AF000-memory.dmp

Filesize
4KB

Download
memory/4540-7-0x00000000055D0000-0x00000000055EA000-memory.dmp

Filesize
104KB

Download
memory/4540-11-0x0000000006670000-0x00000000066E6000-memory.dmp

Filesize
472KB

Download
memory/4540-8-0x00000000747AE000-0x00000000747AF000-memory.dmp

Filesize
4KB

Download
memory/4540-9-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download
memory/4540-6-0x0000000005420000-0x00000000054BC000-memory.dmp

Filesize
624KB

Download
memory/4540-5-0x0000000005120000-0x000000000512A000-memory.dmp

Filesize
40KB

Download
memory/4540-4-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download
memory/4540-14-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download
memory/4540-3-0x00000000051A0000-0x0000000005232000-memory.dmp

Filesize
584KB

Download
memory/4540-2-0x0000000005750000-0x0000000005CF4000-memory.dmp

Filesize
5.6MB

Download
memory/4540-1-0x0000000000690000-0x0000000000734000-memory.dmp

Filesize
656KB

Download