4e5ae5e719fa96759cd4b8ec8ae1cd247fa00e47269a89fe7a823e8918ca958b

Analysis

max time kernel
141s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-09-2024 20:08

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General

Target

dcf7bd1ae8479f4c6a8933be1acc739b_JaffaCakes118.exe
Size

128KB
MD5

dcf7bd1ae8479f4c6a8933be1acc739b
SHA1

94ba93b2ea14da0eaf884b8fd1f2660adbbf8e3b
SHA256

4e5ae5e719fa96759cd4b8ec8ae1cd247fa00e47269a89fe7a823e8918ca958b
SHA512

7ab58bca7a7c05ee2647d0006595b79179d194641b591fe246da1acb7d2f3f8eb1f7c386f9f297ee7632c5c19b7e9893fbcf7d21f7e479931dc2c71dc970a9ee
SSDEEP

3072:jUh1ECvAbPiMd2qcWgvOqISml8MVi8B4f3wD:oh+ChRugvOqI1zWID

Score

10^/10

discovery persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 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\userinit = "userinit.exe,C:\\Windows\\system32\\sdra64.exe,"	dcf7bd1ae8479f4c6a8933be1acc739b_JaffaCakes118.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2916-0-0x0000000000400000-0x000000000044E000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\sdra64.exe	dcf7bd1ae8479f4c6a8933be1acc739b_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\sdra64.exe	dcf7bd1ae8479f4c6a8933be1acc739b_JaffaCakes118.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	dcf7bd1ae8479f4c6a8933be1acc739b_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2916	dcf7bd1ae8479f4c6a8933be1acc739b_JaffaCakes118.exe
2916	dcf7bd1ae8479f4c6a8933be1acc739b_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\dcf7bd1ae8479f4c6a8933be1acc739b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\dcf7bd1ae8479f4c6a8933be1acc739b_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2916

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/2916-1-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2916-0-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2916-6-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download