formbook | 6ce77c20aa2bb6bd48fe6255c91a4167fd81215ed4f4fec78c7387ef2247ae7b

General

Target

myfile.exe
Size

605KB
MD5

5219b5632bdd4d2bf00ca0405660a8cd
SHA1

118b516281a7f9d07e23014611e3a0c5148ba2d6
SHA256

6ce77c20aa2bb6bd48fe6255c91a4167fd81215ed4f4fec78c7387ef2247ae7b
SHA512

998748303f20e88d0239cb7cf5fe8ce055c64c27085d129f174f10705bb9ce2cb838b59da7bed922fe069e03624dffb7306f482966e5bdb2df6481f6c7b6746f
SSDEEP

12288:lkjnD7Oh7Ch0pUCxtrqeZx1Kufvye6vvc3JZgPeAp0:anD7OhM0nx1t/KufvyeOwgb

Score

10^/10

formbook sx01 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

sx01

Decoy

r-salessolutions.xyz

jdh1.info

olar-panel-jobs-93084.bond

aebrasil.shop

oshua-xaaaa.buzz

xzkm.shop

nitedviplumbing.net

nnevateknoloji.xyz

rg-a.biz

indow-replacement-34091.bond

uyersagent3percent.net

ostbag.net

ibosolv.net

ahve.today

ophotshotjobs.today

emoreez.art

ift-chairs-94905.bond

okerdom-e.best

stagr.fun

irtyf-ingrancher.info

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/2140-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2140-21-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2236-22-0x0000000000080000-0x00000000000AF000-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
2216	powershell.exe

Deletes itself 1 IoCs

pid	Process
2672	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1800 set thread context of 2140	1800	myfile.exe	33
PID 2140 set thread context of 1216	2140	myfile.exe	21
PID 2236 set thread context of 1216	2236	control.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	myfile.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	control.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
2140	myfile.exe
2140	myfile.exe
2216	powershell.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe
2236	control.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2140	myfile.exe
2140	myfile.exe
2140	myfile.exe
2236	control.exe
2236	control.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2140	myfile.exe
Token: SeDebugPrivilege	2216	powershell.exe
Token: SeDebugPrivilege	2236	control.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1800 wrote to memory of 2216	1800	myfile.exe	31
PID 1800 wrote to memory of 2216	1800	myfile.exe	31
PID 1800 wrote to memory of 2216	1800	myfile.exe	31
PID 1800 wrote to memory of 2216	1800	myfile.exe	31
PID 1800 wrote to memory of 2140	1800	myfile.exe	33
PID 1800 wrote to memory of 2140	1800	myfile.exe	33
PID 1800 wrote to memory of 2140	1800	myfile.exe	33
PID 1800 wrote to memory of 2140	1800	myfile.exe	33
PID 1800 wrote to memory of 2140	1800	myfile.exe	33
PID 1800 wrote to memory of 2140	1800	myfile.exe	33
PID 1800 wrote to memory of 2140	1800	myfile.exe	33
PID 1216 wrote to memory of 2236	1216	Explorer.EXE	34
PID 1216 wrote to memory of 2236	1216	Explorer.EXE	34
PID 1216 wrote to memory of 2236	1216	Explorer.EXE	34
PID 1216 wrote to memory of 2236	1216	Explorer.EXE	34
PID 2236 wrote to memory of 2672	2236	control.exe	35
PID 2236 wrote to memory of 2672	2236	control.exe	35
PID 2236 wrote to memory of 2672	2236	control.exe	35
PID 2236 wrote to memory of 2672	2236	control.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1216
- C:\Users\Admin\AppData\Local\Temp\myfile.exe
  "C:\Users\Admin\AppData\Local\Temp\myfile.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1800
- - 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\myfile.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2216
- - C:\Users\Admin\AppData\Local\Temp\myfile.exe
    "C:\Users\Admin\AppData\Local\Temp\myfile.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2140
- C:\Windows\SysWOW64\control.exe
  "C:\Windows\SysWOW64\control.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:2236
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\myfile.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2672

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/1216-19-0x0000000003D50000-0x0000000003E50000-memory.dmp

Filesize
1024KB

Download
memory/1800-14-0x0000000074260000-0x000000007494E000-memory.dmp

Filesize
6.9MB

Download
memory/1800-1-0x0000000000FA0000-0x000000000103E000-memory.dmp

Filesize
632KB

Download
memory/1800-2-0x0000000074260000-0x000000007494E000-memory.dmp

Filesize
6.9MB

Download
memory/1800-3-0x0000000000470000-0x0000000000488000-memory.dmp

Filesize
96KB

Download
memory/1800-4-0x000000007426E000-0x000000007426F000-memory.dmp

Filesize
4KB

Download
memory/1800-5-0x0000000074260000-0x000000007494E000-memory.dmp

Filesize
6.9MB

Download
memory/1800-6-0x0000000005070000-0x00000000050E6000-memory.dmp

Filesize
472KB

Download
memory/1800-0-0x000000007426E000-0x000000007426F000-memory.dmp

Filesize
4KB

Download
memory/2140-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2140-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2140-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2140-15-0x0000000000980000-0x0000000000C83000-memory.dmp

Filesize
3.0MB

Download
memory/2140-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2140-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2236-20-0x00000000007E0000-0x00000000007FF000-memory.dmp

Filesize
124KB

Download
memory/2236-22-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download

Analysis

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