formbook | 7e27edc8405ad4fdfcf6d5de75046b0dace6386f05dac3382629b0692274f861

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
09-08-2024 18:27

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

7e27edc8405ad4fdfcf6d5de75046b0dace6386f05dac3382629b0692274f861.exe
Size

1.1MB
MD5

b0896ccaf97625a546e53df07bb98769
SHA1

39d66b58804ff0f1b600b910713118041f0ddd4b
SHA256

7e27edc8405ad4fdfcf6d5de75046b0dace6386f05dac3382629b0692274f861
SHA512

2aa7ead5dd4ef225acecd4d56d1735b7041e1e772e5c82f177561638d262daeff4aca86c14a1b1bcaef5d4cf538d65b3bd0d5842a3382559d7727a379f74e50f
SSDEEP

24576:1qDEvCTbMWu7rQYlBQcBiT6rprG8acGCRB5I89:1TvC/MTQYxsWR7acjp

Score

10^/10

formbook cn14 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cn14

Decoy

fgfdwr254u.xyz

arm-uk.com

qoachu.com

radiantpm.christmas

ghacor.delivery

lindasartgmbh.com

agroguasch.com

silverlinedevelopment.net

1000thb.com

bremwq.xyz

qweuiop.top

dental-implants-21860.bond

elotesaguafria.com

biagiottifraticelli.com

pureleafworks.com

mokomusic.com

lunarqr.shop

bestbuyprods.com

michaelsec.com

morganstore.net

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/2608-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2608-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2608-19-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3588-24-0x0000000000B80000-0x0000000000BAF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 3068 set thread context of 2608	3068	7e27edc8405ad4fdfcf6d5de75046b0dace6386f05dac3382629b0692274f861.exe	86
PID 2608 set thread context of 3504	2608	svchost.exe	56
PID 2608 set thread context of 3504	2608	svchost.exe	56
PID 3588 set thread context of 3504	3588	chkdsk.exe	56

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	7e27edc8405ad4fdfcf6d5de75046b0dace6386f05dac3382629b0692274f861.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
2608	svchost.exe
2608	svchost.exe
2608	svchost.exe
2608	svchost.exe
2608	svchost.exe
2608	svchost.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
3068	7e27edc8405ad4fdfcf6d5de75046b0dace6386f05dac3382629b0692274f861.exe
2608	svchost.exe
2608	svchost.exe
2608	svchost.exe
2608	svchost.exe
3588	chkdsk.exe
3588	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2608	svchost.exe
Token: SeDebugPrivilege	3588	chkdsk.exe
Token: SeShutdownPrivilege	3504	Explorer.EXE
Token: SeCreatePagefilePrivilege	3504	Explorer.EXE
Token: SeShutdownPrivilege	3504	Explorer.EXE
Token: SeCreatePagefilePrivilege	3504	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3504	Explorer.EXE
3504	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3504	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3068 wrote to memory of 2608	3068	7e27edc8405ad4fdfcf6d5de75046b0dace6386f05dac3382629b0692274f861.exe	86
PID 3068 wrote to memory of 2608	3068	7e27edc8405ad4fdfcf6d5de75046b0dace6386f05dac3382629b0692274f861.exe	86
PID 3068 wrote to memory of 2608	3068	7e27edc8405ad4fdfcf6d5de75046b0dace6386f05dac3382629b0692274f861.exe	86
PID 3068 wrote to memory of 2608	3068	7e27edc8405ad4fdfcf6d5de75046b0dace6386f05dac3382629b0692274f861.exe	86
PID 2608 wrote to memory of 3588	2608	svchost.exe	87
PID 2608 wrote to memory of 3588	2608	svchost.exe	87
PID 2608 wrote to memory of 3588	2608	svchost.exe	87
PID 3588 wrote to memory of 5068	3588	chkdsk.exe	88
PID 3588 wrote to memory of 5068	3588	chkdsk.exe	88
PID 3588 wrote to memory of 5068	3588	chkdsk.exe	88

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
PID:3504
- C:\Users\Admin\AppData\Local\Temp\7e27edc8405ad4fdfcf6d5de75046b0dace6386f05dac3382629b0692274f861.exe
  "C:\Users\Admin\AppData\Local\Temp\7e27edc8405ad4fdfcf6d5de75046b0dace6386f05dac3382629b0692274f861.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:3068
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\7e27edc8405ad4fdfcf6d5de75046b0dace6386f05dac3382629b0692274f861.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:2608
  - - C:\Windows\SysWOW64\chkdsk.exe
      "C:\Windows\SysWOW64\chkdsk.exe"
      4⤵
      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:3588
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Windows\SysWOW64\svchost.exe"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:5068

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2608-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2608-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2608-13-0x0000000001700000-0x0000000001A4A000-memory.dmp

Filesize
3.3MB

Download
memory/2608-16-0x0000000001A70000-0x0000000001A84000-memory.dmp

Filesize
80KB

Download
memory/2608-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2608-20-0x0000000001AD0000-0x0000000001AE4000-memory.dmp

Filesize
80KB

Download
memory/3068-11-0x0000000001F00000-0x0000000001F04000-memory.dmp

Filesize
16KB

Download
memory/3504-21-0x0000000003100000-0x00000000032A1000-memory.dmp

Filesize
1.6MB

Download
memory/3504-17-0x000000000AE30000-0x000000000AF5A000-memory.dmp

Filesize
1.2MB

Download
memory/3504-25-0x000000000AE30000-0x000000000AF5A000-memory.dmp

Filesize
1.2MB

Download
memory/3504-27-0x0000000003100000-0x00000000032A1000-memory.dmp

Filesize
1.6MB

Download
memory/3504-29-0x0000000008E40000-0x0000000008F90000-memory.dmp

Filesize
1.3MB

Download
memory/3504-30-0x0000000008E40000-0x0000000008F90000-memory.dmp

Filesize
1.3MB

Download
memory/3504-33-0x0000000008E40000-0x0000000008F90000-memory.dmp

Filesize
1.3MB

Download
memory/3588-22-0x0000000000570000-0x000000000057A000-memory.dmp

Filesize
40KB

Download
memory/3588-23-0x0000000000570000-0x000000000057A000-memory.dmp

Filesize
40KB

Download
memory/3588-24-0x0000000000B80000-0x0000000000BAF000-memory.dmp

Filesize
188KB

Download