formbook | 57c00a4d8594511f335f5b1664d9f681e6803a50c0f0af72dc92f0428ed76fb6

General

Target

Scanbudget.00543647.pdf.exe
Size

620KB
MD5

ae8ca2a7cb793758ff88dee979ac1291
SHA1

d1892e62c48e1d184aed4e7f0aebe4851a8db0c9
SHA256

57c00a4d8594511f335f5b1664d9f681e6803a50c0f0af72dc92f0428ed76fb6
SHA512

07d9157d17230b3311556e726f728193606b4225bdb4b5e6137976d9a19bb564b4f0a2c761b67d44da31ff7c4df49f05a233defdb2744e7ec0c1d1fd02013752
SSDEEP

12288:iTt8JwIF8Q+aYDlQYik944YQsmb2kICDdH7/5fHO6vP0gkR:Wt8GIOa/R4YQsmS9CDdHVm+PE

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/2484-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2484-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2896-20-0x0000000000110000-0x000000000013F000-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
2100	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2440 set thread context of 2484	2440	Scanbudget.00543647.pdf.exe	33
PID 2484 set thread context of 1232	2484	RegSvcs.exe	21
PID 2896 set thread context of 1232	2896	chkdsk.exe	21

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	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Scanbudget.00543647.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
2484	RegSvcs.exe
2484	RegSvcs.exe
2100	powershell.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe
2896	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2484	RegSvcs.exe
2484	RegSvcs.exe
2484	RegSvcs.exe
2896	chkdsk.exe
2896	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2484	RegSvcs.exe
Token: SeDebugPrivilege	2100	powershell.exe
Token: SeDebugPrivilege	2896	chkdsk.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2440 wrote to memory of 2100	2440	Scanbudget.00543647.pdf.exe	31
PID 2440 wrote to memory of 2100	2440	Scanbudget.00543647.pdf.exe	31
PID 2440 wrote to memory of 2100	2440	Scanbudget.00543647.pdf.exe	31
PID 2440 wrote to memory of 2100	2440	Scanbudget.00543647.pdf.exe	31
PID 2440 wrote to memory of 2484	2440	Scanbudget.00543647.pdf.exe	33
PID 2440 wrote to memory of 2484	2440	Scanbudget.00543647.pdf.exe	33
PID 2440 wrote to memory of 2484	2440	Scanbudget.00543647.pdf.exe	33
PID 2440 wrote to memory of 2484	2440	Scanbudget.00543647.pdf.exe	33
PID 2440 wrote to memory of 2484	2440	Scanbudget.00543647.pdf.exe	33
PID 2440 wrote to memory of 2484	2440	Scanbudget.00543647.pdf.exe	33
PID 2440 wrote to memory of 2484	2440	Scanbudget.00543647.pdf.exe	33
PID 2440 wrote to memory of 2484	2440	Scanbudget.00543647.pdf.exe	33
PID 2440 wrote to memory of 2484	2440	Scanbudget.00543647.pdf.exe	33
PID 2440 wrote to memory of 2484	2440	Scanbudget.00543647.pdf.exe	33
PID 1232 wrote to memory of 2896	1232	Explorer.EXE	34
PID 1232 wrote to memory of 2896	1232	Explorer.EXE	34
PID 1232 wrote to memory of 2896	1232	Explorer.EXE	34
PID 1232 wrote to memory of 2896	1232	Explorer.EXE	34
PID 2896 wrote to memory of 2644	2896	chkdsk.exe	35
PID 2896 wrote to memory of 2644	2896	chkdsk.exe	35
PID 2896 wrote to memory of 2644	2896	chkdsk.exe	35
PID 2896 wrote to memory of 2644	2896	chkdsk.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Users\Admin\AppData\Local\Temp\Scanbudget.00543647.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Scanbudget.00543647.pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2440
- - 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\Scanbudget.00543647.pdf.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2100
- - 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:2484
- 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:2896
- - 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:2644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1232-21-0x00000000031B0000-0x00000000032B0000-memory.dmp

Filesize
1024KB

Download
memory/2440-17-0x0000000073CC0000-0x00000000743AE000-memory.dmp

Filesize
6.9MB

Download
memory/2440-5-0x0000000073CC0000-0x00000000743AE000-memory.dmp

Filesize
6.9MB

Download
memory/2440-3-0x00000000006B0000-0x00000000006C8000-memory.dmp

Filesize
96KB

Download
memory/2440-4-0x0000000073CCE000-0x0000000073CCF000-memory.dmp

Filesize
4KB

Download
memory/2440-1-0x00000000012B0000-0x000000000134E000-memory.dmp

Filesize
632KB

Download
memory/2440-6-0x0000000005520000-0x0000000005596000-memory.dmp

Filesize
472KB

Download
memory/2440-2-0x0000000073CC0000-0x00000000743AE000-memory.dmp

Filesize
6.9MB

Download
memory/2440-0-0x0000000073CCE000-0x0000000073CCF000-memory.dmp

Filesize
4KB

Download
memory/2484-15-0x0000000000770000-0x0000000000A73000-memory.dmp

Filesize
3.0MB

Download
memory/2484-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2484-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2484-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2484-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2484-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2896-19-0x0000000000300000-0x0000000000307000-memory.dmp

Filesize
28KB

Download
memory/2896-20-0x0000000000110000-0x000000000013F000-memory.dmp

Filesize
188KB

Download

Analysis

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