formbook | 3f271ee973358892c46921351b80a8a56eb3ed96d925d4daa6958a4b2dcf4cb2

Analysis

max time kernel
146s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28/08/2024, 14:06

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General

Target

Payment Slip copy.scr
Size

618KB
MD5

9516fc51941956b460ca13cce642284f
SHA1

dd0844cffa29d997465067f127d850a9924768cf
SHA256

795a83d84b04c245a8b0ad9221ea20a4635ad6654f22d533f499a5523ee2fe71
SHA512

69e33849cf1631d2f998a7c3f168eea0de7065f5acd7c246f32e85e28cd2aa129918cb59f19b6227829bb4bc1d89c197547db683bfaa54af3dadd2106d4c94ec
SSDEEP

12288:2U+ovYgcf3FgNsOS86CKLlxO9D78qp/+lXvk1yxmnInyroBrFBGkJmAiyUkR:x+oBcf3mNsODp2lX8Ym58BrnGkIANT

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
behavioral1/memory/3720-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/3720-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2184-72-0x0000000001010000-0x000000000103F000-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
2200	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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	Payment Slip copy.scr

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1496 set thread context of 3720	1496	Payment Slip copy.scr	106
PID 3720 set thread context of 3532	3720	RegSvcs.exe	56
PID 2184 set thread context of 3532	2184	chkdsk.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	Payment Slip copy.scr
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.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-1-5-21-2170637797-568393320-3232933035-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3720	RegSvcs.exe
3720	RegSvcs.exe
3720	RegSvcs.exe
3720	RegSvcs.exe
3720	RegSvcs.exe
3720	RegSvcs.exe
2200	powershell.exe
2200	powershell.exe
2200	powershell.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe
2184	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
3720	RegSvcs.exe
3720	RegSvcs.exe
3720	RegSvcs.exe
2184	chkdsk.exe
2184	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	3720	RegSvcs.exe
Token: SeDebugPrivilege	2200	powershell.exe
Token: SeDebugPrivilege	2184	chkdsk.exe
Token: SeShutdownPrivilege	3532	Explorer.EXE
Token: SeCreatePagefilePrivilege	3532	Explorer.EXE
Token: SeShutdownPrivilege	3532	Explorer.EXE
Token: SeCreatePagefilePrivilege	3532	Explorer.EXE
Token: SeShutdownPrivilege	3532	Explorer.EXE
Token: SeCreatePagefilePrivilege	3532	Explorer.EXE
Token: SeShutdownPrivilege	3532	Explorer.EXE
Token: SeCreatePagefilePrivilege	3532	Explorer.EXE
Token: SeShutdownPrivilege	3532	Explorer.EXE
Token: SeCreatePagefilePrivilege	3532	Explorer.EXE
Token: SeShutdownPrivilege	3532	Explorer.EXE
Token: SeCreatePagefilePrivilege	3532	Explorer.EXE
Token: SeShutdownPrivilege	3532	Explorer.EXE
Token: SeCreatePagefilePrivilege	3532	Explorer.EXE
Token: SeShutdownPrivilege	3532	Explorer.EXE
Token: SeCreatePagefilePrivilege	3532	Explorer.EXE
Token: SeShutdownPrivilege	3532	Explorer.EXE
Token: SeCreatePagefilePrivilege	3532	Explorer.EXE
Token: SeShutdownPrivilege	3532	Explorer.EXE
Token: SeCreatePagefilePrivilege	3532	Explorer.EXE
Token: SeShutdownPrivilege	3532	Explorer.EXE
Token: SeCreatePagefilePrivilege	3532	Explorer.EXE
Token: SeShutdownPrivilege	3532	Explorer.EXE
Token: SeCreatePagefilePrivilege	3532	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3532	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1496 wrote to memory of 2200	1496	Payment Slip copy.scr	104
PID 1496 wrote to memory of 2200	1496	Payment Slip copy.scr	104
PID 1496 wrote to memory of 2200	1496	Payment Slip copy.scr	104
PID 1496 wrote to memory of 3720	1496	Payment Slip copy.scr	106
PID 1496 wrote to memory of 3720	1496	Payment Slip copy.scr	106
PID 1496 wrote to memory of 3720	1496	Payment Slip copy.scr	106
PID 1496 wrote to memory of 3720	1496	Payment Slip copy.scr	106
PID 1496 wrote to memory of 3720	1496	Payment Slip copy.scr	106
PID 1496 wrote to memory of 3720	1496	Payment Slip copy.scr	106
PID 3532 wrote to memory of 2184	3532	Explorer.EXE	107
PID 3532 wrote to memory of 2184	3532	Explorer.EXE	107
PID 3532 wrote to memory of 2184	3532	Explorer.EXE	107
PID 2184 wrote to memory of 3648	2184	chkdsk.exe	108
PID 2184 wrote to memory of 3648	2184	chkdsk.exe	108
PID 2184 wrote to memory of 3648	2184	chkdsk.exe	108

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:3532
- C:\Users\Admin\AppData\Local\Temp\Payment Slip copy.scr
  "C:\Users\Admin\AppData\Local\Temp\Payment Slip copy.scr" /S
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1496
- - 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\Payment Slip copy.scr"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2200
- - 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:3720
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2184
- - 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:3648

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4340,i,1729213506309163284,12809566808978835441,262144 --variations-seed-version --mojo-platform-channel-handle=4036 /prefetch:8
1⤵
PID:3144

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dwb5frqs.rxt.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1496-8-0x00000000750CE000-0x00000000750CF000-memory.dmp

Filesize
4KB

Download
memory/1496-10-0x0000000006050000-0x00000000060C6000-memory.dmp

Filesize
472KB

Download
memory/1496-3-0x0000000004D70000-0x0000000004E02000-memory.dmp

Filesize
584KB

Download
memory/1496-4-0x0000000004D10000-0x0000000004D1A000-memory.dmp

Filesize
40KB

Download
memory/1496-5-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/1496-6-0x0000000005FB0000-0x000000000604A000-memory.dmp

Filesize
616KB

Download
memory/1496-2-0x0000000005320000-0x00000000058C4000-memory.dmp

Filesize
5.6MB

Download
memory/1496-7-0x0000000004FA0000-0x0000000004FB8000-memory.dmp

Filesize
96KB

Download
memory/1496-9-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/1496-1-0x00000000003F0000-0x000000000048C000-memory.dmp

Filesize
624KB

Download
memory/1496-11-0x00000000061F0000-0x000000000628C000-memory.dmp

Filesize
624KB

Download
memory/1496-0-0x00000000750CE000-0x00000000750CF000-memory.dmp

Filesize
4KB

Download
memory/1496-14-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/2184-59-0x00000000005A0000-0x00000000005AA000-memory.dmp

Filesize
40KB

Download
memory/2184-58-0x00000000005A0000-0x00000000005AA000-memory.dmp

Filesize
40KB

Download
memory/2184-72-0x0000000001010000-0x000000000103F000-memory.dmp

Filesize
188KB

Download
memory/2200-28-0x00000000054F0000-0x0000000005556000-memory.dmp

Filesize
408KB

Download
memory/2200-61-0x000000007514E000-0x000000007514F000-memory.dmp

Filesize
4KB

Download
memory/2200-71-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/2200-21-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/2200-68-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/2200-24-0x0000000004C70000-0x0000000005298000-memory.dmp

Filesize
6.2MB

Download
memory/2200-25-0x00000000052E0000-0x0000000005302000-memory.dmp

Filesize
136KB

Download
memory/2200-26-0x0000000005480000-0x00000000054E6000-memory.dmp

Filesize
408KB

Download
memory/2200-18-0x00000000045B0000-0x00000000045E6000-memory.dmp

Filesize
216KB

Download
memory/2200-67-0x00000000071B0000-0x00000000071B8000-memory.dmp

Filesize
32KB

Download
memory/2200-37-0x0000000005560000-0x00000000058B4000-memory.dmp

Filesize
3.3MB

Download
memory/2200-38-0x0000000005B60000-0x0000000005B7E000-memory.dmp

Filesize
120KB

Download
memory/2200-39-0x0000000005BA0000-0x0000000005BEC000-memory.dmp

Filesize
304KB

Download
memory/2200-40-0x000000007F680000-0x000000007F690000-memory.dmp

Filesize
64KB

Download
memory/2200-41-0x0000000006B40000-0x0000000006B72000-memory.dmp

Filesize
200KB

Download
memory/2200-42-0x0000000070F60000-0x0000000070FAC000-memory.dmp

Filesize
304KB

Download
memory/2200-54-0x0000000004630000-0x0000000004640000-memory.dmp

Filesize
64KB

Download
memory/2200-53-0x0000000004630000-0x0000000004640000-memory.dmp

Filesize
64KB

Download
memory/2200-52-0x0000000006140000-0x000000000615E000-memory.dmp

Filesize
120KB

Download
memory/2200-55-0x0000000006D80000-0x0000000006E23000-memory.dmp

Filesize
652KB

Download
memory/2200-56-0x00000000074E0000-0x0000000007B5A000-memory.dmp

Filesize
6.5MB

Download
memory/2200-57-0x0000000006E90000-0x0000000006EAA000-memory.dmp

Filesize
104KB

Download
memory/2200-20-0x000000007514E000-0x000000007514F000-memory.dmp

Filesize
4KB

Download
memory/2200-66-0x00000000071D0000-0x00000000071EA000-memory.dmp

Filesize
104KB

Download
memory/2200-60-0x0000000006F00000-0x0000000006F0A000-memory.dmp

Filesize
40KB

Download
memory/2200-23-0x0000000004630000-0x0000000004640000-memory.dmp

Filesize
64KB

Download
memory/2200-62-0x0000000007110000-0x00000000071A6000-memory.dmp

Filesize
600KB

Download
memory/2200-63-0x0000000007090000-0x00000000070A1000-memory.dmp

Filesize
68KB

Download
memory/2200-64-0x00000000070C0000-0x00000000070CE000-memory.dmp

Filesize
56KB

Download
memory/2200-65-0x00000000070D0000-0x00000000070E4000-memory.dmp

Filesize
80KB

Download
memory/3532-22-0x0000000008810000-0x000000000890C000-memory.dmp

Filesize
1008KB

Download
memory/3532-76-0x0000000008910000-0x00000000089D9000-memory.dmp

Filesize
804KB

Download
memory/3720-15-0x00000000018E0000-0x0000000001C2A000-memory.dmp

Filesize
3.3MB

Download
memory/3720-19-0x0000000001D30000-0x0000000001D44000-memory.dmp

Filesize
80KB

Download
memory/3720-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3720-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download