661f115ac13fe374e36ab608673328ad9b77414f789d3bb487dd8fb5958ba4e9

General

Target

bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe
Size

2.5MB
MD5

bec42daba42fae73c7afa75869bb06e0
SHA1

81fcfd166a880dd3ea000e07fcf6c20cfd453611
SHA256

661f115ac13fe374e36ab608673328ad9b77414f789d3bb487dd8fb5958ba4e9
SHA512

ff65eb301cbc3ddeb19da72643dd629866d48e65c8e0d1d5abc05cc984bd4db7b3efc835331c15321cb67ea10781e8f2df54ae408e037b5ac3c3eb6b524da970
SSDEEP

49152:YN9QQkFFqrJ4yLi/qK26ViI+JKSUvn0Afb37cYJ6Luveul6qgl:YNjSTyLi/qKpiIRvnj37cYYLu266fl

Score

7^/10

bootkit discovery evasion persistence

Malware Config

Signatures

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Wine	bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3240	bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dw20.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Modifies registry class 10 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\WOW6432Node\CLSID\{662AF199-96BE-A5F2-E0CF-34BBB777}	bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\WOW6432Node\CLSID\{662AF199-96BE-A5F2-E0CF-34BBB777}\ProdID = 1e67c7044638bb570274a1a4e4512feef460e7188a63496b	bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\WOW6432Node\CLSID\{C3838D77-1E5A-6CB1-2EFC-37C67706}	bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\WOW6432Node\CLSID\{C3838D77-1E5A-6CB1-2EFC-37C67706}\ProdID = cce5616e483f0c68c487bf4684a2b00f8485f5dc40fa261c	bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\WOW6432Node\CLSID\{3AD3DF9A-5B6F-3424-873A-548410C0}\ProdID = af011b909a55ae006e99e242c8b646aed850cdda0ba3d738	bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\WOW6432Node\CLSID\{A4B02A34-14C8-E99D-ADB9-8EA9B143}	bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\WOW6432Node\CLSID\{A4B02A34-14C8-E99D-ADB9-8EA9B143}\ProdID = 20d7e50490e54ef0c8edbfa66664401e76d7014f864bd2dc	bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\WOW6432Node\CLSID\{3AD3DF9A-5B6F-3424-873A-548410C0}	bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\WOW6432Node\CLSID\{3AD3DF9A-5B6F-3424-873A-548410C0}\ProdID = affe1caed6ed8606d2f1bfc446da501f4638d94f335f5df0	bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\WOW6432Node\CLSID\{A4B02A34-14C8-E99D-ADB9-8EA9B143}\ProdID = 1ee7e5fc561271f86a0ec03ae6b5aedfe65727d0c270c244	bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3240	bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe
3240	bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeRestorePrivilege	2108	dw20.exe
Token: SeBackupPrivilege	2108	dw20.exe
Token: SeBackupPrivilege	2108	dw20.exe
Token: SeBackupPrivilege	2108	dw20.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3240 wrote to memory of 2108	3240	bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe	87
PID 3240 wrote to memory of 2108	3240	bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe	87
PID 3240 wrote to memory of 2108	3240	bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe	87

C:\Users\Admin\AppData\Local\Temp\bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bec42daba42fae73c7afa75869bb06e0_JaffaCakes118.exe"
1⤵
- Identifies Wine through registry keys
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3240
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
  dw20.exe -x -s 1072
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:2108

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3240-0-0x0000000000400000-0x00000000009DC000-memory.dmp

Filesize
5.9MB

Download
memory/3240-10-0x0000000000400000-0x00000000009DC000-memory.dmp

Filesize
5.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads