9bea396ec3f58cbe169b12b211d743f645e0bb9cda53b62fd2e4a03a45586730

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
11/08/2024, 08:18

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General

Target

89a71d95ca4c355ec4d5ef9b10aeea9c_JaffaCakes118.dll
Size

166KB
MD5

89a71d95ca4c355ec4d5ef9b10aeea9c
SHA1

34c0634916a5acf408e29806bc39a19c7d2ebca3
SHA256

9bea396ec3f58cbe169b12b211d743f645e0bb9cda53b62fd2e4a03a45586730
SHA512

ebc56519cf8238a79cd2457c42fc4e9d3bef6953ccb1929f3a52f46b3902fed306743cc6d72a72ce18f623d0939c5d34492aacfda7787a18e53eed8d780c1511
SSDEEP

3072:ibYFhQIHsRSLLgk0IwSJtInVw6k3vvjAlO+kTLdwztUC61G:JFhR6Qg4wSJtInqBUlYwf

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 60787 = "{2C1CD3D7-86AC-4068-93BC-A02304B60787}"	rundll32.exe

Blocklisted process makes network request 4 IoCs

flow	pid	Process
3	1168	rundll32.exe
6	1168	rundll32.exe
69	1168	rundll32.exe
70	1168	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 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1168-0-0x0000000010000000-0x0000000010D2F000-memory.dmp	upx
behavioral2/memory/1168-3-0x0000000010000000-0x0000000010D2F000-memory.dmp	upx
behavioral2/memory/1168-5-0x0000000010000000-0x0000000010D2F000-memory.dmp	upx
behavioral2/memory/1168-9-0x0000000010000000-0x0000000010D2F000-memory.dmp	upx
behavioral2/memory/1168-15-0x0000000010000000-0x0000000010D2F000-memory.dmp	upx
behavioral2/memory/1168-16-0x0000000010000000-0x0000000010D2F000-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 data under HKEY_USERS 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client"	svchost.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2C1CD3D7-86AC-4068-93BC-A02304B60787}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2C1CD3D7-86AC-4068-93BC-A02304B60787}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\89a71d95ca4c355ec4d5ef9b10aeea9c_JaffaCakes118.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2C1CD3D7-86AC-4068-93BC-A02304B60787}\InProcServer32\ThreadingModel = "Apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2C1CD3D7-86AC-4068-93BC-A02304B60787}\InProcServer32	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3404 wrote to memory of 1168	3404	rundll32.exe	84
PID 3404 wrote to memory of 1168	3404	rundll32.exe	84
PID 3404 wrote to memory of 1168	3404	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\89a71d95ca4c355ec4d5ef9b10aeea9c_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3404
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\89a71d95ca4c355ec4d5ef9b10aeea9c_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:1168

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:3400

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1168-0-0x0000000010000000-0x0000000010D2F000-memory.dmp

Filesize
13.2MB

Download
memory/1168-3-0x0000000010000000-0x0000000010D2F000-memory.dmp

Filesize
13.2MB

Download
memory/1168-5-0x0000000010000000-0x0000000010D2F000-memory.dmp

Filesize
13.2MB

Download
memory/1168-9-0x0000000010000000-0x0000000010D2F000-memory.dmp

Filesize
13.2MB

Download
memory/1168-15-0x0000000010000000-0x0000000010D2F000-memory.dmp

Filesize
13.2MB

Download
memory/1168-16-0x0000000010000000-0x0000000010D2F000-memory.dmp

Filesize
13.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads