64a7f0745016b0e56a35058423809b8d7078d535421dfdf2d8ca2c05980758d3

General

Target

f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.exe
Size

284KB
MD5

f4efdc3802fab8a2f3d212f32004caff
SHA1

c80eb2de1c01e40da6f964920209cded8ab40f32
SHA256

64a7f0745016b0e56a35058423809b8d7078d535421dfdf2d8ca2c05980758d3
SHA512

3b23393cd2a4cea463d284266e7d422ce9e61d7e52b8ec5c0042e5b93b99d781a299a4a91b34a0bb16182a399280b8f6d643c930fc37d3507402cf3e4d34de48
SSDEEP

6144:5Mrv2ZWb+erGHwisJQ6x0Q6n2dLKU+AHBqkYoV3:oJ+tQ26x0Q62dGAR3

Score

7^/10

discovery persistence upx

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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.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\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\SSS = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.exe /cs:0 "	f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SSS = "\"C:\\242bb5\\SS242_284.exe\" /s"	f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.exe

Checks for any installed AV software in registry 1 TTPs 1 IoCs

Security Software Discovery

T1518.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Eset\Nod\	f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1136 set thread context of 3068	1136	f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.exe	82

UPX packed file 14 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3068-1-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3068-4-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3068-6-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3068-5-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3068-7-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3068-8-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3068-9-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3068-18-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3068-19-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3068-21-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3068-24-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3068-25-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3068-28-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3068-38-0x0000000000400000-0x000000000047C000-memory.dmp	upx

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	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
3608	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3608	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1136 wrote to memory of 3068	1136	f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.exe	82
PID 1136 wrote to memory of 3068	1136	f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.exe	82
PID 1136 wrote to memory of 3068	1136	f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.exe	82
PID 1136 wrote to memory of 3068	1136	f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.exe	82
PID 1136 wrote to memory of 3068	1136	f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.exe	82
PID 3068 wrote to memory of 3608	3068	f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.exe	83
PID 3068 wrote to memory of 3608	3068	f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.exe	83
PID 3068 wrote to memory of 3608	3068	f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.exe	83

C:\Users\Admin\AppData\Local\Temp\f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1136
- C:\Users\Admin\AppData\Local\Temp\f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.exe" "C:\Users\Admin\AppData\Local\Temp\f4efdc3802fab8a2f3d212f32004caff_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Checks for any installed AV software in registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3068
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill.exe /F /IM MSASCui* /IM avg* /IM ash* /IM McSA* /IM msse*
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3608

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

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Software Discovery

1

T1518

Security Software Discovery

1

T1518.001

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

memory/1136-3-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3068-8-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3068-4-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3068-6-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3068-5-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3068-7-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3068-1-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3068-9-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3068-18-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3068-19-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3068-21-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3068-24-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3068-25-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3068-28-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3068-38-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads