66c4c600ba4cca6359f276759b9fd2ce82073e24242f85d06dd678e05218c3a2

General

Target

9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe
Size

48KB
MD5

9775719c20f8fc7d469ea54aee9b97d3
SHA1

e78d391470578777b2f654f1d4e5c53c4e522ed9
SHA256

66c4c600ba4cca6359f276759b9fd2ce82073e24242f85d06dd678e05218c3a2
SHA512

5abf561688a355e18fe181874bb3b5997f5ce9f7da8cc9deebe3a3edb30cdf750caf2c249dd85333eb63385dfa84af30c875ce2b85b10c4c570ae33bfdcf3002
SSDEEP

768:LWRnlOFZzOVeZb7LiWfR5+QTs0aMEwMfW4jW8/7k2yuK8fDpvuUNDQGF:cnlQ9l9XzBv9Ety8zk2Y8fDp7N5

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\AuthorizedApplications\List	9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\M-1-52-5782-8754-5245\winsam.exe = "C:\\Users\\Admin\\M-1-52-5782-8754-5245\\winsam.exe:*:Enabled:Microsoft® Windows System"	9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
3728	winsam.exe
3664	winsam.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3480-0-0x0000000000400000-0x00000000004BB000-memory.dmp	upx
behavioral2/memory/3688-3-0x0000000000400000-0x000000000040D000-memory.dmp	upx
behavioral2/memory/3480-7-0x0000000000400000-0x00000000004BB000-memory.dmp	upx
behavioral2/memory/3688-6-0x0000000000400000-0x000000000040D000-memory.dmp	upx
behavioral2/memory/3688-8-0x0000000000400000-0x000000000040D000-memory.dmp	upx
behavioral2/memory/3688-9-0x0000000000400000-0x000000000040D000-memory.dmp	upx
behavioral2/files/0x0009000000023480-14.dat	upx
behavioral2/memory/3728-78-0x0000000000400000-0x00000000004BB000-memory.dmp	upx
behavioral2/memory/3664-80-0x0000000000400000-0x000000000040D000-memory.dmp	upx
behavioral2/memory/3664-81-0x0000000000400000-0x000000000040D000-memory.dmp	upx
behavioral2/memory/3664-82-0x0000000000400000-0x000000000040D000-memory.dmp	upx

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-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft® Windows System = "C:\\Users\\Admin\\M-1-52-5782-8754-5245\\winsam.exe"	9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3480 set thread context of 3688	3480	9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe	87
PID 3728 set thread context of 3664	3728	winsam.exe	89

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	9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winsam.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3480	9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe
3728	winsam.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3480 wrote to memory of 3688	3480	9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe	87
PID 3480 wrote to memory of 3688	3480	9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe	87
PID 3480 wrote to memory of 3688	3480	9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe	87
PID 3480 wrote to memory of 3688	3480	9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe	87
PID 3480 wrote to memory of 3688	3480	9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe	87
PID 3480 wrote to memory of 3688	3480	9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe	87
PID 3480 wrote to memory of 3688	3480	9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe	87
PID 3688 wrote to memory of 3728	3688	9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe	88
PID 3688 wrote to memory of 3728	3688	9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe	88
PID 3688 wrote to memory of 3728	3688	9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe	88
PID 3728 wrote to memory of 3664	3728	winsam.exe	89
PID 3728 wrote to memory of 3664	3728	winsam.exe	89
PID 3728 wrote to memory of 3664	3728	winsam.exe	89
PID 3728 wrote to memory of 3664	3728	winsam.exe	89
PID 3728 wrote to memory of 3664	3728	winsam.exe	89
PID 3728 wrote to memory of 3664	3728	winsam.exe	89
PID 3728 wrote to memory of 3664	3728	winsam.exe	89

C:\Users\Admin\AppData\Local\Temp\9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3480
- C:\Users\Admin\AppData\Local\Temp\9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\9775719c20f8fc7d469ea54aee9b97d3_JaffaCakes118.exe"
  2⤵
  - Modifies firewall policy service
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3688
- - C:\Users\Admin\M-1-52-5782-8754-5245\winsam.exe
    "C:\Users\Admin\M-1-52-5782-8754-5245\winsam.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3728
  - - C:\Users\Admin\M-1-52-5782-8754-5245\winsam.exe
      "C:\Users\Admin\M-1-52-5782-8754-5245\winsam.exe"
      4⤵
      Executes dropped EXE
      PID:3664

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

Query Registry

1

T1012

System Information Discovery

2

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\M-1-52-5782-8754-5245\winsam.exe

Filesize
48KB

MD5
9775719c20f8fc7d469ea54aee9b97d3

SHA1
e78d391470578777b2f654f1d4e5c53c4e522ed9

SHA256
66c4c600ba4cca6359f276759b9fd2ce82073e24242f85d06dd678e05218c3a2

SHA512
5abf561688a355e18fe181874bb3b5997f5ce9f7da8cc9deebe3a3edb30cdf750caf2c249dd85333eb63385dfa84af30c875ce2b85b10c4c570ae33bfdcf3002

Download Submit
memory/3480-0-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/3480-7-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/3664-80-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/3664-81-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/3664-82-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/3688-3-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/3688-6-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/3688-8-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/3688-9-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/3688-70-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3728-78-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads