formbook | d21e26aa5cfaeae40be681b6ef282698d6e3b76dea7f6f1c54233870aca8ac8c

Analysis

max time kernel
150s
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
27-08-2024 08:00

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General

Target

c49b28723e072ebf59a5917c1390e502_JaffaCakes118.exe
Size

325KB
MD5

c49b28723e072ebf59a5917c1390e502
SHA1

fc5c7975c2ae71ce95d2e2ad132539cc5a67353f
SHA256

d21e26aa5cfaeae40be681b6ef282698d6e3b76dea7f6f1c54233870aca8ac8c
SHA512

405c55f8ad898a612372634d9ec1c0ee08cd505f4eb3724894f4b9cb0a9459dfc77937b82cabad072ce019d66f11b59e6f90ab19ff4749306e16834ce2f1b930
SSDEEP

6144:3IDk2llfQ8FZK7jfp6E8Ty3YUEXznI6mh9X8EL3HR8yptp7Nu+:3IDk2Xf0fpnHYhy3XFHR8Ap7Nu

Score

10^/10

formbook hx63 discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

2.9

Campaign

hx63

Decoy

click-click.site

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral2/memory/4288-13-0x0000000000400000-0x0000000000426000-memory.dmp	formbook
behavioral2/memory/4288-20-0x0000000000400000-0x0000000000426000-memory.dmp	formbook

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TBQKRBRU.exe	c49b28723e072ebf59a5917c1390e502_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TBQKRBRU.exe	c49b28723e072ebf59a5917c1390e502_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
3956	TBQKRBRU.exe
4288	TBQKRBRU.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TBQKRBRU = "cmd /c type C:\\Users\\Admin\\AppData\\Local\\Temp\\TBQKRBRU.txt \| cmd"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3956 set thread context of 4288	3956	TBQKRBRU.exe	92
PID 4288 set thread context of 3376	4288	TBQKRBRU.exe	56
PID 2844 set thread context of 3376	2844	ipconfig.exe	56

System Location Discovery: System Language Discovery 1 TTPs 7 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	TBQKRBRU.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ipconfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c49b28723e072ebf59a5917c1390e502_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2844	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3348	c49b28723e072ebf59a5917c1390e502_JaffaCakes118.exe
3348	c49b28723e072ebf59a5917c1390e502_JaffaCakes118.exe
3956	TBQKRBRU.exe
3956	TBQKRBRU.exe
4288	TBQKRBRU.exe
4288	TBQKRBRU.exe
4288	TBQKRBRU.exe
4288	TBQKRBRU.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe
2844	ipconfig.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4288	TBQKRBRU.exe
4288	TBQKRBRU.exe
4288	TBQKRBRU.exe
2844	ipconfig.exe
2844	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3348	c49b28723e072ebf59a5917c1390e502_JaffaCakes118.exe
Token: SeDebugPrivilege	3956	TBQKRBRU.exe
Token: SeDebugPrivilege	4288	TBQKRBRU.exe
Token: SeDebugPrivilege	2844	ipconfig.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3376	Explorer.EXE

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3348 wrote to memory of 3168	3348	c49b28723e072ebf59a5917c1390e502_JaffaCakes118.exe	84
PID 3348 wrote to memory of 3168	3348	c49b28723e072ebf59a5917c1390e502_JaffaCakes118.exe	84
PID 3348 wrote to memory of 3168	3348	c49b28723e072ebf59a5917c1390e502_JaffaCakes118.exe	84
PID 3168 wrote to memory of 3956	3168	cmd.exe	86
PID 3168 wrote to memory of 3956	3168	cmd.exe	86
PID 3168 wrote to memory of 3956	3168	cmd.exe	86
PID 3956 wrote to memory of 4860	3956	TBQKRBRU.exe	89
PID 3956 wrote to memory of 4860	3956	TBQKRBRU.exe	89
PID 3956 wrote to memory of 4860	3956	TBQKRBRU.exe	89
PID 4860 wrote to memory of 2748	4860	cmd.exe	91
PID 4860 wrote to memory of 2748	4860	cmd.exe	91
PID 4860 wrote to memory of 2748	4860	cmd.exe	91
PID 3956 wrote to memory of 4288	3956	TBQKRBRU.exe	92
PID 3956 wrote to memory of 4288	3956	TBQKRBRU.exe	92
PID 3956 wrote to memory of 4288	3956	TBQKRBRU.exe	92
PID 3956 wrote to memory of 4288	3956	TBQKRBRU.exe	92
PID 3956 wrote to memory of 4288	3956	TBQKRBRU.exe	92
PID 3956 wrote to memory of 4288	3956	TBQKRBRU.exe	92
PID 3376 wrote to memory of 2844	3376	Explorer.EXE	94
PID 3376 wrote to memory of 2844	3376	Explorer.EXE	94
PID 3376 wrote to memory of 2844	3376	Explorer.EXE	94
PID 2844 wrote to memory of 4352	2844	ipconfig.exe	98
PID 2844 wrote to memory of 4352	2844	ipconfig.exe	98
PID 2844 wrote to memory of 4352	2844	ipconfig.exe	98

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3376
- C:\Users\Admin\AppData\Local\Temp\c49b28723e072ebf59a5917c1390e502_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\c49b28723e072ebf59a5917c1390e502_JaffaCakes118.exe"
  2⤵
  - Drops startup file
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3348
- - C:\Windows\SysWOW64\cmd.exe
    "cmd"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3168
  - - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TBQKRBRU.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TBQKRBRU.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:3956
    - - C:\Windows\SysWOW64\cmd.exe
        
        "cmd"
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:4860
      - C:\Windows\SysWOW64\reg.exe
        
        reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "TBQKRBRU" /d "cmd /c type "C:\Users\Admin\AppData\Local\Temp\TBQKRBRU.txt" | cmd"
        6⤵
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        
        PID:2748
    - - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TBQKRBRU.exe
        
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TBQKRBRU.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of AdjustPrivilegeToken
        
        PID:4288
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4212
- C:\Windows\SysWOW64\ipconfig.exe
  "C:\Windows\SysWOW64\ipconfig.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2844
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TBQKRBRU.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4352

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TBQKRBRU.exe

Filesize
325KB

MD5
c49b28723e072ebf59a5917c1390e502

SHA1
fc5c7975c2ae71ce95d2e2ad132539cc5a67353f

SHA256
d21e26aa5cfaeae40be681b6ef282698d6e3b76dea7f6f1c54233870aca8ac8c

SHA512
405c55f8ad898a612372634d9ec1c0ee08cd505f4eb3724894f4b9cb0a9459dfc77937b82cabad072ce019d66f11b59e6f90ab19ff4749306e16834ce2f1b930

Download Submit
memory/2844-22-0x00000000007C0000-0x00000000007CB000-memory.dmp

Filesize
44KB

Download
memory/2844-23-0x00000000007C0000-0x00000000007CB000-memory.dmp

Filesize
44KB

Download
memory/3348-1-0x0000000074C50000-0x0000000075201000-memory.dmp

Filesize
5.7MB

Download
memory/3348-2-0x0000000074C50000-0x0000000075201000-memory.dmp

Filesize
5.7MB

Download
memory/3348-11-0x0000000074C50000-0x0000000075201000-memory.dmp

Filesize
5.7MB

Download
memory/3348-0-0x0000000074C52000-0x0000000074C53000-memory.dmp

Filesize
4KB

Download
memory/3376-25-0x0000000002F40000-0x0000000002FD0000-memory.dmp

Filesize
576KB

Download
memory/3376-21-0x0000000002F40000-0x0000000002FD0000-memory.dmp

Filesize
576KB

Download
memory/3956-8-0x0000000074C50000-0x0000000075201000-memory.dmp

Filesize
5.7MB

Download
memory/3956-16-0x0000000074C50000-0x0000000075201000-memory.dmp

Filesize
5.7MB

Download
memory/3956-9-0x0000000074C50000-0x0000000075201000-memory.dmp

Filesize
5.7MB

Download
memory/3956-7-0x0000000074C50000-0x0000000075201000-memory.dmp

Filesize
5.7MB

Download
memory/4288-13-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4288-18-0x00000000018D0000-0x0000000001C1A000-memory.dmp

Filesize
3.3MB

Download
memory/4288-19-0x00000000015D0000-0x00000000015E0000-memory.dmp

Filesize
64KB

Download
memory/4288-20-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download