0b532e99623d46fef8c0a18d80cf21531b894697bc72a60b3d21d2f9108b21ab

General

Target

76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe
Size

73KB
MD5

76fa18b523120182f5730c2627b36fd4
SHA1

aa9f8bbc789e5c1177dc67b746d1e126af2b349a
SHA256

0b532e99623d46fef8c0a18d80cf21531b894697bc72a60b3d21d2f9108b21ab
SHA512

56907b474e47a518925f14a18e0c944dbaee9aa44d5856882ebf4c3fc076787ab73ddcf6ecae4a166b673b8898999401c993b8568d9634b8a7bced91d7ac3899
SSDEEP

768:MWLScsqbl2AxV//mlTYV3742+5K8S0L4p+SQxzylpav8ti7jd4Xn:MWLSil261/FVLrqNmp+Viakg3Un

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	76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Public\HEX-5823-6893-6818\jutched.exe = "C:\\Users\\Public\\HEX-5823-6893-6818\\jutched.exe:*:Enabled:Java Update Manager"	76fa18b523120182f5730c2627b36fd4_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-1-5-21-3419463127-3903270268-2580331543-1000\Control Panel\International\Geo\Nation	76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
5024	jutched.exe
624	jutched.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3524-0-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3524-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/files/0x00070000000234a5-13.dat	upx
behavioral2/memory/5024-70-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/5024-80-0x0000000000400000-0x0000000000421000-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-1-5-21-3419463127-3903270268-2580331543-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Java Update Manager = "C:\\Users\\Public\\HEX-5823-6893-6818\\jutched.exe"	76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\winrtsnr.txt	jutched.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3524 set thread context of 4524	3524	76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe	84
PID 5024 set thread context of 624	5024	jutched.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 4 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	76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jutched.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jutched.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3524	76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe
5024	jutched.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3524 wrote to memory of 4524	3524	76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe	84
PID 3524 wrote to memory of 4524	3524	76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe	84
PID 3524 wrote to memory of 4524	3524	76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe	84
PID 3524 wrote to memory of 4524	3524	76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe	84
PID 3524 wrote to memory of 4524	3524	76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe	84
PID 3524 wrote to memory of 4524	3524	76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe	84
PID 3524 wrote to memory of 4524	3524	76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe	84
PID 3524 wrote to memory of 4524	3524	76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe	84
PID 4524 wrote to memory of 5024	4524	76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe	88
PID 4524 wrote to memory of 5024	4524	76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe	88
PID 4524 wrote to memory of 5024	4524	76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe	88
PID 5024 wrote to memory of 624	5024	jutched.exe	89
PID 5024 wrote to memory of 624	5024	jutched.exe	89
PID 5024 wrote to memory of 624	5024	jutched.exe	89
PID 5024 wrote to memory of 624	5024	jutched.exe	89
PID 5024 wrote to memory of 624	5024	jutched.exe	89
PID 5024 wrote to memory of 624	5024	jutched.exe	89
PID 5024 wrote to memory of 624	5024	jutched.exe	89
PID 5024 wrote to memory of 624	5024	jutched.exe	89

C:\Users\Admin\AppData\Local\Temp\76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3524
- C:\Users\Admin\AppData\Local\Temp\76fa18b523120182f5730c2627b36fd4_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\76fa18b523120182f5730c2627b36fd4_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:4524
- - C:\Users\Public\HEX-5823-6893-6818\jutched.exe
    "C:\Users\Public\HEX-5823-6893-6818\jutched.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:5024
  - - C:\Users\Public\HEX-5823-6893-6818\jutched.exe
      C:\Users\Public\HEX-5823-6893-6818\jutched.exe
      4⤵
      Executes dropped EXE
      Drops file in System32 directory
      System Location Discovery: System Language Discovery
      PID:624

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\Public\HEX-5823-6893-6818\jutched.exe

Filesize
73KB

MD5
76fa18b523120182f5730c2627b36fd4

SHA1
aa9f8bbc789e5c1177dc67b746d1e126af2b349a

SHA256
0b532e99623d46fef8c0a18d80cf21531b894697bc72a60b3d21d2f9108b21ab

SHA512
56907b474e47a518925f14a18e0c944dbaee9aa44d5856882ebf4c3fc076787ab73ddcf6ecae4a166b673b8898999401c993b8568d9634b8a7bced91d7ac3899

Download Submit
memory/624-78-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/624-81-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/624-83-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/3524-0-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3524-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4524-3-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/4524-5-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/4524-8-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/4524-72-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/5024-70-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5024-80-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads