formbook | 1613bfb500607dd257e4fd9f329e10d9383804e45c055061eac7c54819cf93e0

Analysis

max time kernel
147s
max time network
136s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-09-2024 00:38

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General

Target

d561757e0af77697ac7c78cce04880a0_JaffaCakes118.exe
Size

582KB
MD5

d561757e0af77697ac7c78cce04880a0
SHA1

d2f8788e1f4f95bf866914a7efbb284bba3f850d
SHA256

1613bfb500607dd257e4fd9f329e10d9383804e45c055061eac7c54819cf93e0
SHA512

74a7b11f188b8b0cfa518eaa7315424b64e4d5e5be8ee8deaa821e1dcd46fe0b2e3a51e12de8911e46a1cfe590302f68615e734ca8288f6516d701bf30825e80
SSDEEP

6144:HktFGcCmUocjJCYx+lo63fPzVdgIJXEt5YE3j6Dbnc82gKa:HkicEocdCYxoo63fvgTH3uDDf2n

Score

10^/10

formbook discovery persistence rat spyware stealer trojan

Malware Config

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
behavioral1/memory/2704-13-0x0000000000400000-0x0000000000428000-memory.dmp	formbook
behavioral1/memory/2704-18-0x0000000000400000-0x0000000000428000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

pid	Process
2640	purchase1.exe
2704	purchase1.exe

Loads dropped DLL 3 IoCs

pid	Process
2360	cmd.exe
2360	cmd.exe
2640	purchase1.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\purchase1 = "cmd /c type C:\\Users\\Admin\\AppData\\Local\\Temp\\purchase1.txt \| cmd"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2640 set thread context of 2704	2640	purchase1.exe	37
PID 2704 set thread context of 1152	2704	purchase1.exe	20
PID 2860 set thread context of 1152	2860	mstsc.exe	20

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	purchase1.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	mstsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d561757e0af77697ac7c78cce04880a0_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 35 IoCs

pid	Process
1224	d561757e0af77697ac7c78cce04880a0_JaffaCakes118.exe
1224	d561757e0af77697ac7c78cce04880a0_JaffaCakes118.exe
2640	purchase1.exe
2640	purchase1.exe
2704	purchase1.exe
2704	purchase1.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe
2860	mstsc.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2704	purchase1.exe
2704	purchase1.exe
2704	purchase1.exe
2860	mstsc.exe
2860	mstsc.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1224	d561757e0af77697ac7c78cce04880a0_JaffaCakes118.exe
Token: SeDebugPrivilege	2640	purchase1.exe
Token: SeDebugPrivilege	2704	purchase1.exe
Token: SeDebugPrivilege	2860	mstsc.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1152	Explorer.EXE
1152	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1152	Explorer.EXE
1152	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
1152	Explorer.EXE

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 1224 wrote to memory of 2360	1224	d561757e0af77697ac7c78cce04880a0_JaffaCakes118.exe	31
PID 1224 wrote to memory of 2360	1224	d561757e0af77697ac7c78cce04880a0_JaffaCakes118.exe	31
PID 1224 wrote to memory of 2360	1224	d561757e0af77697ac7c78cce04880a0_JaffaCakes118.exe	31
PID 1224 wrote to memory of 2360	1224	d561757e0af77697ac7c78cce04880a0_JaffaCakes118.exe	31
PID 2360 wrote to memory of 2640	2360	cmd.exe	33
PID 2360 wrote to memory of 2640	2360	cmd.exe	33
PID 2360 wrote to memory of 2640	2360	cmd.exe	33
PID 2360 wrote to memory of 2640	2360	cmd.exe	33
PID 2640 wrote to memory of 2192	2640	purchase1.exe	34
PID 2640 wrote to memory of 2192	2640	purchase1.exe	34
PID 2640 wrote to memory of 2192	2640	purchase1.exe	34
PID 2640 wrote to memory of 2192	2640	purchase1.exe	34
PID 2192 wrote to memory of 2108	2192	cmd.exe	36
PID 2192 wrote to memory of 2108	2192	cmd.exe	36
PID 2192 wrote to memory of 2108	2192	cmd.exe	36
PID 2192 wrote to memory of 2108	2192	cmd.exe	36
PID 2640 wrote to memory of 2704	2640	purchase1.exe	37
PID 2640 wrote to memory of 2704	2640	purchase1.exe	37
PID 2640 wrote to memory of 2704	2640	purchase1.exe	37
PID 2640 wrote to memory of 2704	2640	purchase1.exe	37
PID 2640 wrote to memory of 2704	2640	purchase1.exe	37
PID 2640 wrote to memory of 2704	2640	purchase1.exe	37
PID 2640 wrote to memory of 2704	2640	purchase1.exe	37
PID 1152 wrote to memory of 2860	1152	Explorer.EXE	38
PID 1152 wrote to memory of 2860	1152	Explorer.EXE	38
PID 1152 wrote to memory of 2860	1152	Explorer.EXE	38
PID 1152 wrote to memory of 2860	1152	Explorer.EXE	38
PID 2860 wrote to memory of 2724	2860	mstsc.exe	40
PID 2860 wrote to memory of 2724	2860	mstsc.exe	40
PID 2860 wrote to memory of 2724	2860	mstsc.exe	40
PID 2860 wrote to memory of 2724	2860	mstsc.exe	40

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Users\Admin\AppData\Local\Temp\d561757e0af77697ac7c78cce04880a0_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d561757e0af77697ac7c78cce04880a0_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1224
- - C:\Windows\SysWOW64\cmd.exe
    "cmd"
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2360
  - - C:\Users\Admin\Desktop\purchase1.exe
      "C:\Users\Admin\Desktop\purchase1.exe"
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2640
    - - C:\Windows\SysWOW64\cmd.exe
        
        "cmd"
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2192
      - C:\Windows\SysWOW64\reg.exe
        
        reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "purchase1" /d "cmd /c type "C:\Users\Admin\AppData\Local\Temp\purchase1.txt" | cmd"
        6⤵
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        
        PID:2108
    - - C:\Users\Admin\Desktop\purchase1.exe
        
        "C:\Users\Admin\Desktop\purchase1.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of AdjustPrivilegeToken
        
        PID:2704
- C:\Windows\SysWOW64\mstsc.exe
  "C:\Windows\SysWOW64\mstsc.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:2860
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\Desktop\purchase1.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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 Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\Desktop\purchase1.exe

Filesize
582KB

MD5
d561757e0af77697ac7c78cce04880a0

SHA1
d2f8788e1f4f95bf866914a7efbb284bba3f850d

SHA256
1613bfb500607dd257e4fd9f329e10d9383804e45c055061eac7c54819cf93e0

SHA512
74a7b11f188b8b0cfa518eaa7315424b64e4d5e5be8ee8deaa821e1dcd46fe0b2e3a51e12de8911e46a1cfe590302f68615e734ca8288f6516d701bf30825e80

Download Submit
memory/1152-20-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1224-8-0x0000000074380000-0x000000007492B000-memory.dmp

Filesize
5.7MB

Download
memory/1224-2-0x0000000074380000-0x000000007492B000-memory.dmp

Filesize
5.7MB

Download
memory/1224-0-0x0000000074381000-0x0000000074382000-memory.dmp

Filesize
4KB

Download
memory/1224-1-0x0000000074380000-0x000000007492B000-memory.dmp

Filesize
5.7MB

Download
memory/2640-10-0x0000000074380000-0x000000007492B000-memory.dmp

Filesize
5.7MB

Download
memory/2640-9-0x0000000074380000-0x000000007492B000-memory.dmp

Filesize
5.7MB

Download
memory/2640-15-0x0000000074380000-0x000000007492B000-memory.dmp

Filesize
5.7MB

Download
memory/2704-13-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2704-17-0x00000000009C0000-0x0000000000CC3000-memory.dmp

Filesize
3.0MB

Download
memory/2704-18-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2860-19-0x0000000000290000-0x0000000000394000-memory.dmp

Filesize
1.0MB

Download