formbook | 2d1d21fefaccdde89b759234f18ed79ea0a8a631c15be4f93fe3106f7fe6abe6

General

Target

2d1d21fefaccdde89b759234f18ed79ea0a8a631c15be4f93fe3106f7fe6abe6.exe
Size

1.0MB
MD5

8128f92e759ef0399a73d001b78bf37e
SHA1

64d435e7ca1c98ea6e1b5818d6cc8d0dad22db7d
SHA256

2d1d21fefaccdde89b759234f18ed79ea0a8a631c15be4f93fe3106f7fe6abe6
SHA512

5de12e936fc0be70ed771cb911e3cacec64a1ddd6e84124bd59b9a56117fd5eae655c79442cc33f971fe686ec8826484c196f04c5c6b85fb6864ac7b24faee30
SSDEEP

24576:ffmMv6Ckr7Mny5QL2OTYtNaqimUy7RRtst35de:f3v+7/5QL2mTARReR5de

Score

10^/10

formbook n04s discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

n04s

Decoy

imberstimedtinter.cfd

ttfr44solutionschesapeake.pro

kkas.xyz

sk-frby.xyz

ptowing.net

jzimq-community.xyz

ressoncrookencruller.cfd

amedana.click

ravamarketing.tech

udfa-speech.xyz

ose-bdbzsg.xyz

alsiuuarsiau.xyz

fgiopa.xyz

15501.pro

tart-ewlon.xyz

kjjf-company.xyz

araldschauer.shop

wet25.vip

armostfavorgaivn.cfd

ompa77.click

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/2472-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2472-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2472-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2404-16-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2348 set thread context of 2472	2348	2d1d21fefaccdde89b759234f18ed79ea0a8a631c15be4f93fe3106f7fe6abe6.exe	30
PID 2472 set thread context of 1196	2472	svchost.exe	21
PID 2472 set thread context of 1196	2472	svchost.exe	21
PID 2404 set thread context of 1196	2404	wuapp.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	2d1d21fefaccdde89b759234f18ed79ea0a8a631c15be4f93fe3106f7fe6abe6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuapp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2472	svchost.exe
2472	svchost.exe
2472	svchost.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe
2404	wuapp.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2348	2d1d21fefaccdde89b759234f18ed79ea0a8a631c15be4f93fe3106f7fe6abe6.exe
2472	svchost.exe
2472	svchost.exe
2472	svchost.exe
2472	svchost.exe
2404	wuapp.exe
2404	wuapp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2472	svchost.exe
Token: SeDebugPrivilege	2404	wuapp.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
2348	2d1d21fefaccdde89b759234f18ed79ea0a8a631c15be4f93fe3106f7fe6abe6.exe
2348	2d1d21fefaccdde89b759234f18ed79ea0a8a631c15be4f93fe3106f7fe6abe6.exe
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
2348	2d1d21fefaccdde89b759234f18ed79ea0a8a631c15be4f93fe3106f7fe6abe6.exe
2348	2d1d21fefaccdde89b759234f18ed79ea0a8a631c15be4f93fe3106f7fe6abe6.exe
1196	Explorer.EXE
1196	Explorer.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 2472	2348	2d1d21fefaccdde89b759234f18ed79ea0a8a631c15be4f93fe3106f7fe6abe6.exe	30
PID 2348 wrote to memory of 2472	2348	2d1d21fefaccdde89b759234f18ed79ea0a8a631c15be4f93fe3106f7fe6abe6.exe	30
PID 2348 wrote to memory of 2472	2348	2d1d21fefaccdde89b759234f18ed79ea0a8a631c15be4f93fe3106f7fe6abe6.exe	30
PID 2348 wrote to memory of 2472	2348	2d1d21fefaccdde89b759234f18ed79ea0a8a631c15be4f93fe3106f7fe6abe6.exe	30
PID 2348 wrote to memory of 2472	2348	2d1d21fefaccdde89b759234f18ed79ea0a8a631c15be4f93fe3106f7fe6abe6.exe	30
PID 2472 wrote to memory of 2404	2472	svchost.exe	32
PID 2472 wrote to memory of 2404	2472	svchost.exe	32
PID 2472 wrote to memory of 2404	2472	svchost.exe	32
PID 2472 wrote to memory of 2404	2472	svchost.exe	32
PID 2472 wrote to memory of 2404	2472	svchost.exe	32
PID 2472 wrote to memory of 2404	2472	svchost.exe	32
PID 2472 wrote to memory of 2404	2472	svchost.exe	32
PID 2404 wrote to memory of 2680	2404	wuapp.exe	33
PID 2404 wrote to memory of 2680	2404	wuapp.exe	33
PID 2404 wrote to memory of 2680	2404	wuapp.exe	33
PID 2404 wrote to memory of 2680	2404	wuapp.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1196
- C:\Users\Admin\AppData\Local\Temp\2d1d21fefaccdde89b759234f18ed79ea0a8a631c15be4f93fe3106f7fe6abe6.exe
  "C:\Users\Admin\AppData\Local\Temp\2d1d21fefaccdde89b759234f18ed79ea0a8a631c15be4f93fe3106f7fe6abe6.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2348
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\2d1d21fefaccdde89b759234f18ed79ea0a8a631c15be4f93fe3106f7fe6abe6.exe"
    3⤵
    - 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:2472
  - - C:\Windows\SysWOW64\wuapp.exe
      "C:\Windows\SysWOW64\wuapp.exe"
      4⤵
      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:2404
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Windows\SysWOW64\svchost.exe"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2680

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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/1196-12-0x0000000004EF0000-0x0000000005000000-memory.dmp

Filesize
1.1MB

Download
memory/1196-24-0x00000000050E0000-0x000000000523C000-memory.dmp

Filesize
1.4MB

Download
memory/1196-22-0x00000000050E0000-0x000000000523C000-memory.dmp

Filesize
1.4MB

Download
memory/1196-8-0x0000000004EF0000-0x0000000005000000-memory.dmp

Filesize
1.1MB

Download
memory/1196-21-0x00000000050E0000-0x000000000523C000-memory.dmp

Filesize
1.4MB

Download
memory/1196-17-0x0000000005000000-0x00000000050E0000-memory.dmp

Filesize
896KB

Download
memory/1196-13-0x0000000005000000-0x00000000050E0000-memory.dmp

Filesize
896KB

Download
memory/2348-2-0x0000000003B90000-0x0000000003D90000-memory.dmp

Filesize
2.0MB

Download
memory/2404-16-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/2404-15-0x0000000000110000-0x000000000011B000-memory.dmp

Filesize
44KB

Download
memory/2404-14-0x0000000000110000-0x000000000011B000-memory.dmp

Filesize
44KB

Download
memory/2472-11-0x0000000000210000-0x0000000000225000-memory.dmp

Filesize
84KB

Download
memory/2472-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2472-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2472-7-0x0000000000180000-0x0000000000195000-memory.dmp

Filesize
84KB

Download
memory/2472-4-0x0000000000990000-0x0000000000C93000-memory.dmp

Filesize
3.0MB

Download
memory/2472-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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