formbook | 35a957c128cb8431e412fad3f0a71d392d5bad8433936a99909477a3b9c43bc4

General

Target

caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe
Size

509KB
MD5

caa15cf238aab71d356c954b1041948d
SHA1

45eda2d654be6c79854b8cb14f3c27f3e024f46f
SHA256

35a957c128cb8431e412fad3f0a71d392d5bad8433936a99909477a3b9c43bc4
SHA512

c395c9dfc59b851b956b2d4bf21bceeb7dafd1e5e9cd6f6286e0e9ae94c7f04442a59c5e57a3ebfdf3e79d71067a3567cd4d65b10772c32a7fb0201adedc30a4
SSDEEP

12288:yu/N1ulb9BayeVL5fO2c6sRWBP0SoivrtzQMG5p45+ygUu8:Pl1umL5fRaRK0SfZznG5p

Score

10^/10

formbook discovery evasion rat spyware stealer trojan

Malware Config

Signatures

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

Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs

evasion trojan

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral1/memory/2196-27-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2648 set thread context of 2196	2648	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe	34

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 3 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	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2936	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3004	powershell.exe
2648	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe
2196	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3004	powershell.exe
Token: SeDebugPrivilege	2648	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 3004	2648	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe	30
PID 2648 wrote to memory of 3004	2648	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe	30
PID 2648 wrote to memory of 3004	2648	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe	30
PID 2648 wrote to memory of 3004	2648	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe	30
PID 2648 wrote to memory of 2936	2648	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe	32
PID 2648 wrote to memory of 2936	2648	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe	32
PID 2648 wrote to memory of 2936	2648	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe	32
PID 2648 wrote to memory of 2936	2648	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe	32
PID 2648 wrote to memory of 2196	2648	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe	34
PID 2648 wrote to memory of 2196	2648	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe	34
PID 2648 wrote to memory of 2196	2648	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe	34
PID 2648 wrote to memory of 2196	2648	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe	34
PID 2648 wrote to memory of 2196	2648	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe	34
PID 2648 wrote to memory of 2196	2648	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe	34
PID 2648 wrote to memory of 2196	2648	caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe	34

C:\Users\Admin\AppData\Local\Temp\caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe"
1⤵
- Modifies Windows Defender Real-time Protection settings
- Windows security modification
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2648
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell" Get-MpPreference -verbose
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3004
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pxZSGYPHdOLq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4579.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2936
- C:\Users\Admin\AppData\Local\Temp\caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\caa15cf238aab71d356c954b1041948d_JaffaCakes118.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2196

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify Tools

Modify Registry

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp4579.tmp

Filesize
1KB

MD5
df5de2eb5771c40c87686b4e0bef3cc2

SHA1
4bcc9e19c4b38ae0587c321e65a1383ffd102ac3

SHA256
ee153ad61f257d70c62dd60caaf568022a9d0659cad55e9a465e8ae2cb844437

SHA512
83ff8378581734420ca10caa788c1b624fbfe1d8e69e9474941049d4af1b40e2a5a598963f33d2101ee04b05f07801f779e41e0185d100b5eedfb1920c439490

Download Submit
memory/2196-24-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2196-22-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2196-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2196-27-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2648-5-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2648-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2648-7-0x00000000043B0000-0x0000000004406000-memory.dmp

Filesize
344KB

Download
memory/2648-8-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/2648-9-0x00000000048C0000-0x00000000048F6000-memory.dmp

Filesize
216KB

Download
memory/2648-28-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2648-1-0x0000000000C80000-0x0000000000D06000-memory.dmp

Filesize
536KB

Download
memory/2648-2-0x00000000003B0000-0x0000000000418000-memory.dmp

Filesize
416KB

Download
memory/2648-3-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2648-4-0x00000000002A0000-0x00000000002B8000-memory.dmp

Filesize
96KB

Download
memory/2648-6-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/3004-16-0x000000006F770000-0x000000006FD1B000-memory.dmp

Filesize
5.7MB

Download
memory/3004-15-0x000000006F770000-0x000000006FD1B000-memory.dmp

Filesize
5.7MB

Download
memory/3004-14-0x000000006F770000-0x000000006FD1B000-memory.dmp

Filesize
5.7MB

Download
memory/3004-13-0x000000006F770000-0x000000006FD1B000-memory.dmp

Filesize
5.7MB

Download
memory/3004-12-0x000000006F771000-0x000000006F772000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads