formbook | 1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30

Analysis

max time kernel
146s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-08-2024 06:45

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General

Target

CZyOWoN2hiszA6d.exe
Size

653KB
MD5

4f9709aa08fb342403b4a9d952419184
SHA1

07913a57cfe7e1674525397f571ae98d3195a11c
SHA256

1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30
SHA512

cde7fe3db0ee4fd1876e3b40601e4d9c81ae4b2fa525335d183c9d0314fde6eaaa5820303d3fd2eb0a008f09511c08967fe0ba00fea83c9dee8d98d80f513fe0
SSDEEP

12288:3Zxa/zmcDXmyLO609WOgt3MbOSJ6gAFss9ewhMBdULG503vdPlLVBkR:3ZxaakZb0wr3MRJ7U9ZMBYG503DLVc

Score

10^/10

formbook v15n discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

v15n

Decoy

dyahwoahjuk.store

toysstorm.com

y7rak9.com

2222233p6.shop

betbox2341.com

visualvarta.com

nijssenadventures.com

main-12.site

leng4d.net

kurainu.xyz

hatesa.xyz

culturamosaica.com

supermallify.store

gigboard.app

rxforgive.com

ameliestones.com

kapalwin.live

tier.credit

sobol-ksa.com

faredeal.online

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/2852-45-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3112-92-0x0000000000870000-0x000000000089F000-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
1856	powershell.exe
2952	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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	CZyOWoN2hiszA6d.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4208 set thread context of 2852	4208	CZyOWoN2hiszA6d.exe	92
PID 2852 set thread context of 3380	2852	CZyOWoN2hiszA6d.exe	56
PID 3112 set thread context of 3380	3112	svchost.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	CZyOWoN2hiszA6d.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	svchost.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
4884	schtasks.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
2952	powershell.exe
1856	powershell.exe
2852	CZyOWoN2hiszA6d.exe
2852	CZyOWoN2hiszA6d.exe
2852	CZyOWoN2hiszA6d.exe
2852	CZyOWoN2hiszA6d.exe
1856	powershell.exe
2952	powershell.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2852	CZyOWoN2hiszA6d.exe
2852	CZyOWoN2hiszA6d.exe
2852	CZyOWoN2hiszA6d.exe
3112	svchost.exe
3112	svchost.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1856	powershell.exe
Token: SeDebugPrivilege	2952	powershell.exe
Token: SeDebugPrivilege	2852	CZyOWoN2hiszA6d.exe
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE
Token: SeDebugPrivilege	3112	svchost.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3380	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4208 wrote to memory of 1856	4208	CZyOWoN2hiszA6d.exe	86
PID 4208 wrote to memory of 1856	4208	CZyOWoN2hiszA6d.exe	86
PID 4208 wrote to memory of 1856	4208	CZyOWoN2hiszA6d.exe	86
PID 4208 wrote to memory of 2952	4208	CZyOWoN2hiszA6d.exe	88
PID 4208 wrote to memory of 2952	4208	CZyOWoN2hiszA6d.exe	88
PID 4208 wrote to memory of 2952	4208	CZyOWoN2hiszA6d.exe	88
PID 4208 wrote to memory of 4884	4208	CZyOWoN2hiszA6d.exe	90
PID 4208 wrote to memory of 4884	4208	CZyOWoN2hiszA6d.exe	90
PID 4208 wrote to memory of 4884	4208	CZyOWoN2hiszA6d.exe	90
PID 4208 wrote to memory of 2852	4208	CZyOWoN2hiszA6d.exe	92
PID 4208 wrote to memory of 2852	4208	CZyOWoN2hiszA6d.exe	92
PID 4208 wrote to memory of 2852	4208	CZyOWoN2hiszA6d.exe	92
PID 4208 wrote to memory of 2852	4208	CZyOWoN2hiszA6d.exe	92
PID 4208 wrote to memory of 2852	4208	CZyOWoN2hiszA6d.exe	92
PID 4208 wrote to memory of 2852	4208	CZyOWoN2hiszA6d.exe	92
PID 3380 wrote to memory of 3112	3380	Explorer.EXE	93
PID 3380 wrote to memory of 3112	3380	Explorer.EXE	93
PID 3380 wrote to memory of 3112	3380	Explorer.EXE	93
PID 3112 wrote to memory of 5020	3112	svchost.exe	94
PID 3112 wrote to memory of 5020	3112	svchost.exe	94
PID 3112 wrote to memory of 5020	3112	svchost.exe	94

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3380
- C:\Users\Admin\AppData\Local\Temp\CZyOWoN2hiszA6d.exe
  "C:\Users\Admin\AppData\Local\Temp\CZyOWoN2hiszA6d.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4208
- - 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\CZyOWoN2hiszA6d.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1856
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\dacYzRiJuWECy.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2952
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dacYzRiJuWECy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE5EB.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4884
- - C:\Users\Admin\AppData\Local\Temp\CZyOWoN2hiszA6d.exe
    "C:\Users\Admin\AppData\Local\Temp\CZyOWoN2hiszA6d.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2852
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\SysWOW64\svchost.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:3112
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\CZyOWoN2hiszA6d.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5020

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
5ef64ea8ff303d8e57f1c811f3af6ea5

SHA1
c5826e3a3bc5c340cf87df6b775ce89cee4c6127

SHA256
7d6b78862f976a2ce30780adcd553204bb933e24d3b68cc81a6d96956c20079f

SHA512
599d1c68aed1905756d1bfc344cad5633990114b2ff05145bb82c48a541dcbd6da70673bccbc77b59e76a0bdb172120c32990ce9e8a26ca69f877ac5d9fccaf6

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ak3scu1b.meu.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE5EB.tmp

Filesize
1KB

MD5
1bfe1d57c5f522007dac77a748bf6888

SHA1
e4ddcc1707f663a872f9858c135f80aae819d294

SHA256
924775878d29f53feca62d72af892e39743b29dac405faf927c39dbb516e0c1d

SHA512
907f32afbcd4b3bd0489a35b6186d479901ef450fb60e0fe05b6e39cf330b2af84622fd3b14bd70292881c3d791a17a63455250aa41c8af7954d3d7fa0e1252e

Download Submit
memory/1856-77-0x0000000007170000-0x0000000007206000-memory.dmp

Filesize
600KB

Download
memory/1856-20-0x00000000054D0000-0x0000000005536000-memory.dmp

Filesize
408KB

Download
memory/1856-51-0x0000000006D40000-0x0000000006D72000-memory.dmp

Filesize
200KB

Download
memory/1856-53-0x00000000753C0000-0x000000007540C000-memory.dmp

Filesize
304KB

Download
memory/1856-89-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/1856-80-0x0000000007130000-0x0000000007144000-memory.dmp

Filesize
80KB

Download
memory/1856-76-0x0000000006F60000-0x0000000006F6A000-memory.dmp

Filesize
40KB

Download
memory/1856-15-0x0000000002300000-0x0000000002336000-memory.dmp

Filesize
216KB

Download
memory/1856-16-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/1856-17-0x0000000004E30000-0x0000000005458000-memory.dmp

Filesize
6.2MB

Download
memory/1856-18-0x0000000004B10000-0x0000000004B32000-memory.dmp

Filesize
136KB

Download
memory/1856-78-0x00000000070F0000-0x0000000007101000-memory.dmp

Filesize
68KB

Download
memory/1856-79-0x0000000007120000-0x000000000712E000-memory.dmp

Filesize
56KB

Download
memory/1856-44-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/1856-19-0x0000000004C30000-0x0000000004C96000-memory.dmp

Filesize
408KB

Download
memory/1856-74-0x0000000007530000-0x0000000007BAA000-memory.dmp

Filesize
6.5MB

Download
memory/2852-45-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2952-33-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/2952-34-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/2952-32-0x0000000006270000-0x00000000065C4000-memory.dmp

Filesize
3.3MB

Download
memory/2952-49-0x0000000006890000-0x00000000068AE000-memory.dmp

Filesize
120KB

Download
memory/2952-21-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/2952-52-0x00000000753C0000-0x000000007540C000-memory.dmp

Filesize
304KB

Download
memory/2952-81-0x0000000007EF0000-0x0000000007F0A000-memory.dmp

Filesize
104KB

Download
memory/2952-82-0x0000000007ED0000-0x0000000007ED8000-memory.dmp

Filesize
32KB

Download
memory/2952-88-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/2952-50-0x0000000006920000-0x000000000696C000-memory.dmp

Filesize
304KB

Download
memory/2952-72-0x0000000006E20000-0x0000000006E3E000-memory.dmp

Filesize
120KB

Download
memory/2952-73-0x0000000006EC0000-0x0000000006F63000-memory.dmp

Filesize
652KB

Download
memory/2952-75-0x0000000007BB0000-0x0000000007BCA000-memory.dmp

Filesize
104KB

Download
memory/3112-92-0x0000000000870000-0x000000000089F000-memory.dmp

Filesize
188KB

Download
memory/3112-91-0x0000000000F70000-0x0000000000F7E000-memory.dmp

Filesize
56KB

Download
memory/3112-90-0x0000000000F70000-0x0000000000F7E000-memory.dmp

Filesize
56KB

Download
memory/3380-96-0x0000000002AA0000-0x0000000002B8E000-memory.dmp

Filesize
952KB

Download
memory/4208-9-0x00000000091E0000-0x0000000009256000-memory.dmp

Filesize
472KB

Download
memory/4208-4-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/4208-10-0x000000000C2F0000-0x000000000C38C000-memory.dmp

Filesize
624KB

Download
memory/4208-5-0x00000000055B0000-0x00000000055BA000-memory.dmp

Filesize
40KB

Download
memory/4208-2-0x00000000059C0000-0x0000000005F64000-memory.dmp

Filesize
5.6MB

Download
memory/4208-1-0x0000000000970000-0x0000000000A16000-memory.dmp

Filesize
664KB

Download
memory/4208-8-0x00000000065A0000-0x00000000065B6000-memory.dmp

Filesize
88KB

Download
memory/4208-7-0x0000000006580000-0x000000000658E000-memory.dmp

Filesize
56KB

Download
memory/4208-47-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/4208-3-0x0000000005410000-0x00000000054A2000-memory.dmp

Filesize
584KB

Download
memory/4208-6-0x0000000006C90000-0x0000000006CA8000-memory.dmp

Filesize
96KB

Download
memory/4208-0-0x0000000074B3E000-0x0000000074B3F000-memory.dmp

Filesize
4KB

Download