formbook | 863062f983aac165c04b1af4ce761865b4fd734b71de85e0aba00c112febac2b

General

Target

3aY3m96tqMSF6uX.exe
Size

713KB
MD5

e0e2345d91945b57353de7be04535f15
SHA1

2d5ac0274b741d19da82180264f5819ddfd11551
SHA256

863062f983aac165c04b1af4ce761865b4fd734b71de85e0aba00c112febac2b
SHA512

e78122530a09a9b874e5291584ffb4257e34fa1ea3b9f8f1dc54c5fa757de269566e2b07533ae3a7ba6212cd253c399949faaaab8f261ed8952c636d2146cf35
SSDEEP

12288:OC25usx+XtWhK/bACVDNdRBE6teRn6iB6/VN9hogN5AjJeuM5cifib7Qhk:yxg8ClrRa3Rn3BoP/AjO5cK

Score

10^/10

formbook ax19 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ax19

Decoy

nmarklun.biz

eadithere.net

oytromcm.net

6gu536d.shop

hysicsjunction.online

esistivitysensors.net

ealthcare-software-53940.bond

tupid-edsee.cyou

614.lat

agmart.store

lothesthesale.store

ranopen.info

c1v.lat

owflyingbugs.online

undumimmobilien.net

nline-advertising-57252.bond

orktyper.net

kten10.shop

sadeaguia.net

ouseofnormal.party

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/1784-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1784-21-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1852-22-0x0000000000080000-0x00000000000AF000-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
2932	powershell.exe

Deletes itself 1 IoCs

pid	Process
756	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2728 set thread context of 1784	2728	3aY3m96tqMSF6uX.exe	32
PID 1784 set thread context of 1204	1784	3aY3m96tqMSF6uX.exe	21
PID 1852 set thread context of 1204	1852	cmd.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3aY3m96tqMSF6uX.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
2728	3aY3m96tqMSF6uX.exe
2728	3aY3m96tqMSF6uX.exe
1784	3aY3m96tqMSF6uX.exe
1784	3aY3m96tqMSF6uX.exe
2932	powershell.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe
1852	cmd.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1784	3aY3m96tqMSF6uX.exe
1784	3aY3m96tqMSF6uX.exe
1784	3aY3m96tqMSF6uX.exe
1852	cmd.exe
1852	cmd.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2728	3aY3m96tqMSF6uX.exe
Token: SeDebugPrivilege	1784	3aY3m96tqMSF6uX.exe
Token: SeDebugPrivilege	2932	powershell.exe
Token: SeDebugPrivilege	1852	cmd.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2728 wrote to memory of 2932	2728	3aY3m96tqMSF6uX.exe	30
PID 2728 wrote to memory of 2932	2728	3aY3m96tqMSF6uX.exe	30
PID 2728 wrote to memory of 2932	2728	3aY3m96tqMSF6uX.exe	30
PID 2728 wrote to memory of 2932	2728	3aY3m96tqMSF6uX.exe	30
PID 2728 wrote to memory of 1784	2728	3aY3m96tqMSF6uX.exe	32
PID 2728 wrote to memory of 1784	2728	3aY3m96tqMSF6uX.exe	32
PID 2728 wrote to memory of 1784	2728	3aY3m96tqMSF6uX.exe	32
PID 2728 wrote to memory of 1784	2728	3aY3m96tqMSF6uX.exe	32
PID 2728 wrote to memory of 1784	2728	3aY3m96tqMSF6uX.exe	32
PID 2728 wrote to memory of 1784	2728	3aY3m96tqMSF6uX.exe	32
PID 2728 wrote to memory of 1784	2728	3aY3m96tqMSF6uX.exe	32
PID 1204 wrote to memory of 1852	1204	Explorer.EXE	34
PID 1204 wrote to memory of 1852	1204	Explorer.EXE	34
PID 1204 wrote to memory of 1852	1204	Explorer.EXE	34
PID 1204 wrote to memory of 1852	1204	Explorer.EXE	34
PID 1852 wrote to memory of 756	1852	cmd.exe	35
PID 1852 wrote to memory of 756	1852	cmd.exe	35
PID 1852 wrote to memory of 756	1852	cmd.exe	35
PID 1852 wrote to memory of 756	1852	cmd.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Users\Admin\AppData\Local\Temp\3aY3m96tqMSF6uX.exe
  "C:\Users\Admin\AppData\Local\Temp\3aY3m96tqMSF6uX.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2728
- - 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\3aY3m96tqMSF6uX.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2932
- - C:\Users\Admin\AppData\Local\Temp\3aY3m96tqMSF6uX.exe
    "C:\Users\Admin\AppData\Local\Temp\3aY3m96tqMSF6uX.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1784
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2604
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\SysWOW64\cmd.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:1852
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\3aY3m96tqMSF6uX.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:756

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

System Information Discovery

1

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/1204-19-0x00000000003B0000-0x00000000004B0000-memory.dmp

Filesize
1024KB

Download
memory/1204-23-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1784-17-0x0000000000930000-0x0000000000C33000-memory.dmp

Filesize
3.0MB

Download
memory/1784-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1784-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1784-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1784-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1784-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1852-22-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1852-20-0x000000004AB30000-0x000000004AB7C000-memory.dmp

Filesize
304KB

Download
memory/2728-6-0x00000000049C0000-0x0000000004A38000-memory.dmp

Filesize
480KB

Download
memory/2728-14-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-0-0x000000007456E000-0x000000007456F000-memory.dmp

Filesize
4KB

Download
memory/2728-2-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-3-0x00000000003F0000-0x0000000000408000-memory.dmp

Filesize
96KB

Download
memory/2728-5-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-4-0x000000007456E000-0x000000007456F000-memory.dmp

Filesize
4KB

Download
memory/2728-1-0x0000000000F30000-0x0000000000FE8000-memory.dmp

Filesize
736KB

Download

Analysis

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