48239932367151039aef3c447a0497e5103ec6d03f25e730f9466a118c0595d6

Analysis

max time kernel
136s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21-08-2024 11:36

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General

Target

b34e02bd19c160502deb59a4f09d6ea5_JaffaCakes118.dll
Size

9KB
MD5

b34e02bd19c160502deb59a4f09d6ea5
SHA1

590593473d873278d26df57acf2edb4dd3ae6c6e
SHA256

48239932367151039aef3c447a0497e5103ec6d03f25e730f9466a118c0595d6
SHA512

a04a7e93c18491345a3837d97cb339fbb530a5b40ccbdce70d04f443215beb63d641b3c9537f0ae73a86cc483418841849cb27702bf0d8136c8923de74bfeadf
SSDEEP

192:H8g6AXcpXY24s6f/8FjR/oG6L4ecw/QH8xp8M3TLxc85fuJsw:HdDf24ssWjRgx4VOQbM3TLxc89u

Score

6^/10

discovery persistence

Malware Config

Signatures

Modifies WinLogon 2 TTPs 7 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\cryptnet32\Logon = "ChainWlxLogonEvent"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\cryptnet32\Logoff = "ChainWlxLogoffEvent"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\cryptnet32	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\cryptnet32\Asynchronous = "0"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\cryptnet32\DLLName = "cryptnet32.dll"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\cryptnet32\Impersonate = "0"	rundll32.exe

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

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 792 wrote to memory of 4736	792	rundll32.exe	89
PID 792 wrote to memory of 4736	792	rundll32.exe	89
PID 792 wrote to memory of 4736	792	rundll32.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b34e02bd19c160502deb59a4f09d6ea5_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:792
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b34e02bd19c160502deb59a4f09d6ea5_JaffaCakes118.dll,#1
  2⤵
  - Modifies WinLogon
  - System Location Discovery: System Language Discovery
  PID:4736

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=1028,i,12470628711992022444,7767535593390851522,262144 --variations-seed-version --mojo-platform-channel-handle=4064 /prefetch:8
1⤵
PID:4772

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

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/4736-0-0x0000000010000000-0x0000000010009000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads