0e354b0a3dae3616280ca94e128efaa0dff8484848336651ae86766a92a3d6c3

General

Target

8d6ee5d168c4ebe39ef2816d0c789e84_JaffaCakes118.dll
Size

166KB
MD5

8d6ee5d168c4ebe39ef2816d0c789e84
SHA1

d13143b8cc7d1e569202d7dfe01dc901b6517a28
SHA256

0e354b0a3dae3616280ca94e128efaa0dff8484848336651ae86766a92a3d6c3
SHA512

c812468e071bd86498273ec293d983d749eecb695bc38ba7a3af87f099bffafc71099078628276c57741c05a0c7bb4afa246db4e20f219e6cd68969b719e3a02
SSDEEP

3072:KgEvGJcoMSW6MFG1Yb3bdYTqaiZtjBG6o7+yT74Xff0DGzD74t0PCal:KgE+Js6ZidHTjg7+yAXj3uHO

Score

10^/10

discovery persistence upx

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\DCOM Server 25319 = "{2C1CD3D7-86AC-4068-93BC-A02304B25319}"	rundll32.exe

Blocklisted process makes network request 4 IoCs

flow	pid	Process
2	2684	rundll32.exe
3	2684	rundll32.exe
6	2684	rundll32.exe
7	2684	rundll32.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	rundll32.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2684-1-0x00000000021F0000-0x0000000002F1F000-memory.dmp	upx
behavioral1/memory/2684-2-0x00000000021F0000-0x0000000002F1F000-memory.dmp	upx
behavioral1/memory/2684-3-0x00000000021F0000-0x0000000002F1F000-memory.dmp	upx
behavioral1/memory/2684-5-0x00000000021F0000-0x0000000002F1F000-memory.dmp	upx
behavioral1/memory/2684-8-0x00000000021F0000-0x0000000002F1F000-memory.dmp	upx
behavioral1/memory/2684-11-0x00000000021F0000-0x0000000002F1F000-memory.dmp	upx
behavioral1/memory/2684-14-0x00000000021F0000-0x0000000002F1F000-memory.dmp	upx
behavioral1/memory/2684-15-0x00000000021F0000-0x0000000002F1F000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 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	rundll32.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2C1CD3D7-86AC-4068-93BC-A02304B25319}\InProcServer32	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2C1CD3D7-86AC-4068-93BC-A02304B25319}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2C1CD3D7-86AC-4068-93BC-A02304B25319}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8d6ee5d168c4ebe39ef2816d0c789e84_JaffaCakes118.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2C1CD3D7-86AC-4068-93BC-A02304B25319}\InProcServer32\ThreadingModel = "Apartment"	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1504 wrote to memory of 2684	1504	rundll32.exe	31
PID 1504 wrote to memory of 2684	1504	rundll32.exe	31
PID 1504 wrote to memory of 2684	1504	rundll32.exe	31
PID 1504 wrote to memory of 2684	1504	rundll32.exe	31
PID 1504 wrote to memory of 2684	1504	rundll32.exe	31
PID 1504 wrote to memory of 2684	1504	rundll32.exe	31
PID 1504 wrote to memory of 2684	1504	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8d6ee5d168c4ebe39ef2816d0c789e84_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1504
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8d6ee5d168c4ebe39ef2816d0c789e84_JaffaCakes118.dll,#1
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - Blocklisted process makes network request
  - Drops file in Drivers directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2684

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

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/2684-1-0x00000000021F0000-0x0000000002F1F000-memory.dmp

Filesize
13.2MB

Download
memory/2684-2-0x00000000021F0000-0x0000000002F1F000-memory.dmp

Filesize
13.2MB

Download
memory/2684-3-0x00000000021F0000-0x0000000002F1F000-memory.dmp

Filesize
13.2MB

Download
memory/2684-5-0x00000000021F0000-0x0000000002F1F000-memory.dmp

Filesize
13.2MB

Download
memory/2684-8-0x00000000021F0000-0x0000000002F1F000-memory.dmp

Filesize
13.2MB

Download
memory/2684-11-0x00000000021F0000-0x0000000002F1F000-memory.dmp

Filesize
13.2MB

Download
memory/2684-14-0x00000000021F0000-0x0000000002F1F000-memory.dmp

Filesize
13.2MB

Download
memory/2684-15-0x00000000021F0000-0x0000000002F1F000-memory.dmp

Filesize
13.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads