2b7301dc94d743818af1950dc1128dcc2045590b37d7be8448061ae541c99718

General

Target

30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe
Size

32KB
MD5

30b5a56de60c3c81f80fadf55d37b796
SHA1

f5fe8caa811adbe67d2281730c73e028a53bb786
SHA256

2b7301dc94d743818af1950dc1128dcc2045590b37d7be8448061ae541c99718
SHA512

b62d72ba55b3731bf2f5400410a2cb86d6de638dc9075ab080c1019b82d13ac4af05783fde724aa22ce0272fb91cbbd747ad2ea059d56b12e2d3715ee2577d5d
SSDEEP

384:j0YboIYj8sxtJaDFZ/dNxGnQTXylF9GFflueo7SKkqFYqMqny:jcIYj8sAZ3xGnQORGlIoKLSqMqy

Score

10^/10

discovery evasion persistence upx

Malware Config

Signatures

Modifies firewall policy service 3 TTPs 4 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	winlogon.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	winlogon.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\Windows Update System = "C:\\Users\\Admin\\AppData\\Roaming\\winlogon.exe"	winlogon.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	winlogon.exe

Executes dropped EXE 2 IoCs

pid	Process
3876	winlogon.exe
3240	winlogon.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update System = "C:\\Users\\Admin\\AppData\\Roaming\\winlogon.exe"	winlogon.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update System = "C:\\Users\\Admin\\AppData\\Roaming\\winlogon.exe"	winlogon.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1376 set thread context of 1100	1376	30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe	84
PID 3876 set thread context of 3240	3876	winlogon.exe	88

UPX packed file 20 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1100-3-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/1100-5-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/1100-7-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/1100-6-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/3240-20-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/3240-27-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/3240-28-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/3240-29-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/3240-30-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/3240-31-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/3240-32-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/3240-33-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/3240-34-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/3240-35-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/3240-36-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/3240-37-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/3240-38-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/3240-39-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/3240-40-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/3240-41-0x0000000000400000-0x000000000040E000-memory.dmp	upx

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	30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winlogon.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1100	30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe
1100	30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe
1100	30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe
1100	30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe
3240	winlogon.exe
3240	winlogon.exe
3240	winlogon.exe
3240	winlogon.exe
3240	winlogon.exe
3240	winlogon.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1376	30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe
3876	winlogon.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1376 wrote to memory of 1100	1376	30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe	84
PID 1376 wrote to memory of 1100	1376	30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe	84
PID 1376 wrote to memory of 1100	1376	30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe	84
PID 1376 wrote to memory of 1100	1376	30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe	84
PID 1376 wrote to memory of 1100	1376	30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe	84
PID 1376 wrote to memory of 1100	1376	30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe	84
PID 1376 wrote to memory of 1100	1376	30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe	84
PID 1376 wrote to memory of 1100	1376	30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe	84
PID 1100 wrote to memory of 3876	1100	30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe	87
PID 1100 wrote to memory of 3876	1100	30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe	87
PID 1100 wrote to memory of 3876	1100	30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe	87
PID 3876 wrote to memory of 3240	3876	winlogon.exe	88
PID 3876 wrote to memory of 3240	3876	winlogon.exe	88
PID 3876 wrote to memory of 3240	3876	winlogon.exe	88
PID 3876 wrote to memory of 3240	3876	winlogon.exe	88
PID 3876 wrote to memory of 3240	3876	winlogon.exe	88
PID 3876 wrote to memory of 3240	3876	winlogon.exe	88
PID 3876 wrote to memory of 3240	3876	winlogon.exe	88
PID 3876 wrote to memory of 3240	3876	winlogon.exe	88

C:\Users\Admin\AppData\Local\Temp\30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1376
- C:\Users\Admin\AppData\Local\Temp\30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp/30b5a56de60c3c81f80fadf55d37b796_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1100
- - C:\Users\Admin\AppData\Roaming\winlogon.exe
    "C:\Users\Admin\AppData\Roaming\winlogon.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3876
  - - C:\Users\Admin\AppData\Roaming\winlogon.exe
      C:\Users\Admin\AppData\Roaming/winlogon.exe
      4⤵
      Modifies firewall policy service
      Executes dropped EXE
      Adds Run key to start application
      Suspicious behavior: EnumeratesProcesses
      PID:3240

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

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\Roaming\winlogon.exe

Filesize
32KB

MD5
30b5a56de60c3c81f80fadf55d37b796

SHA1
f5fe8caa811adbe67d2281730c73e028a53bb786

SHA256
2b7301dc94d743818af1950dc1128dcc2045590b37d7be8448061ae541c99718

SHA512
b62d72ba55b3731bf2f5400410a2cb86d6de638dc9075ab080c1019b82d13ac4af05783fde724aa22ce0272fb91cbbd747ad2ea059d56b12e2d3715ee2577d5d

Download Submit
memory/1100-3-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1100-5-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1100-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1100-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3240-31-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3240-33-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3240-28-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3240-29-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3240-30-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3240-20-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3240-32-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3240-27-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3240-34-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3240-35-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3240-36-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3240-37-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3240-38-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3240-39-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3240-40-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3240-41-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads