61bc5d9518b650fbfdce614f48ebcab86b2531f132a086a14ab8225862447ab2

General

Target

8a62b16940d9af2697b318bf27558dec_JaffaCakes118.exe
Size

68KB
MD5

8a62b16940d9af2697b318bf27558dec
SHA1

b40badedd48ec4eda45f97d33bb60f565130fa66
SHA256

61bc5d9518b650fbfdce614f48ebcab86b2531f132a086a14ab8225862447ab2
SHA512

3cbb1545a435203f153331c93c318915da667a28b6b78fda45da1100df89e23aa40e1068472df3611fa266e44ab7e1629b8da41d83e211dda6c5d0d86e83a2b5
SSDEEP

768:XMoJ0OZ7FV732L2vC+E90i4q9p+SimMhhQKVizBvcenHNzHX7Z6I:LP7FV7Ctai4BSimMhGRNfHpoI

Score

7^/10

discovery persistence

Malware Config

Signatures

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	8a62b16940d9af2697b318bf27558dec_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
4984	winlog.exe

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\NeverShowExt	winlog.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\winlog.EXE	8a62b16940d9af2697b318bf27558dec_JaffaCakes118.exe
File opened for modification	C:\Windows\winlog.EXE	8a62b16940d9af2697b318bf27558dec_JaffaCakes118.exe

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 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	8a62b16940d9af2697b318bf27558dec_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winlog.exe

Modifies registry class 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shell\ = "open"	winlog.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shell\explore\command	winlog.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shell\explore\command\ = "C:\\Windows\\winlog.EXE %1"	winlog.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile	winlog.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shell\open\command	winlog.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shell	winlog.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shell\open	winlog.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shell\explore\ = "?????(&X) "	winlog.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\inffile\shell\open\command\ = "C:\\Windows\\winlog.EXE %1"	winlog.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\VBSFile\Shell\Open\Command\ = "C:\\Windows\\winlog.EXE %1"	winlog.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\NeverShowExt	winlog.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive	winlog.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\inifile\shell\open\command\ = "C:\\Windows\\winlog.EXE %1"	winlog.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\regfile\shell\open\command	winlog.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\chm.file\shell\open\command	winlog.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shell\explore	winlog.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\inifile\shell\open\command	winlog.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\inffile\shell\open\command	winlog.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command	winlog.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "C:\\Windows\\winlog.EXE %1"	winlog.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\regfile\shell\open\command\ = "C:\\Windows\\winlog.EXE %1"	winlog.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\vbsfile\shell\open\command	winlog.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shell\open\ = "??(&O) "	winlog.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shell\open\command\ = "C:\\Windows\\winlog.EXE %1"	winlog.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4984	winlog.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2008	8a62b16940d9af2697b318bf27558dec_JaffaCakes118.exe
4984	winlog.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2008 wrote to memory of 4984	2008	8a62b16940d9af2697b318bf27558dec_JaffaCakes118.exe	85
PID 2008 wrote to memory of 4984	2008	8a62b16940d9af2697b318bf27558dec_JaffaCakes118.exe	85
PID 2008 wrote to memory of 4984	2008	8a62b16940d9af2697b318bf27558dec_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\8a62b16940d9af2697b318bf27558dec_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8a62b16940d9af2697b318bf27558dec_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Windows\winlog.exe
  "C:\Windows\winlog.exe"
  2⤵
  - Executes dropped EXE
  - Modifies system executable filetype association
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:4984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Privilege Escalation

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Defense Evasion

Modify Registry

1

T1112

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:\Windows\winlog.EXE

Filesize
68KB

MD5
8a62b16940d9af2697b318bf27558dec

SHA1
b40badedd48ec4eda45f97d33bb60f565130fa66

SHA256
61bc5d9518b650fbfdce614f48ebcab86b2531f132a086a14ab8225862447ab2

SHA512
3cbb1545a435203f153331c93c318915da667a28b6b78fda45da1100df89e23aa40e1068472df3611fa266e44ab7e1629b8da41d83e211dda6c5d0d86e83a2b5

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads