cef45b35e70c139cdf8f46dd350978a0e3cb97982297421adabef748f01f7e6e

Analysis

max time kernel
84s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
07-09-2024 16:00

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General

Target

d24f344ecaea0b7d88315cc0db15d433_JaffaCakes118.dll
Size

102KB
MD5

d24f344ecaea0b7d88315cc0db15d433
SHA1

1c20674d16281e29530f3806923c04c8b9ae5545
SHA256

cef45b35e70c139cdf8f46dd350978a0e3cb97982297421adabef748f01f7e6e
SHA512

3cfbae19b6c643965f3db709abeba9fd3b6f4472917a0d024ff9875c81a6eac6c64aaacfdc332b2f3b28158fbf491b05daa2b0515bdc72d09c9a9834f04abda7
SSDEEP

3072:v01RxfaY9uOBG3oqyEZqADo4aD0LSw/ctBuTu:vfYEl3JyEZLdaImt8u

Score

7^/10

adware discovery stealer upx

Malware Config

Signatures

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2348-3-0x0000000000400000-0x0000000000437000-memory.dmp	upx
behavioral1/memory/2348-2-0x0000000000400000-0x0000000000437000-memory.dmp	upx
behavioral1/memory/2348-4-0x0000000000400000-0x0000000000437000-memory.dmp	upx
behavioral1/memory/2348-6-0x0000000000400000-0x0000000000437000-memory.dmp	upx

Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{870FFF04-740D-4D65-AC81-ACCECAE3DA59}	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

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{870FFF04-740D-4D65-AC81-ACCECAE3DA59}\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\{870FFF04-740D-4D65-AC81-ACCECAE3DA59}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{870FFF04-740D-4D65-AC81-ACCECAE3DA59}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\d24f344ecaea0b7d88315cc0db15d433_JaffaCakes118.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{870FFF04-740D-4D65-AC81-ACCECAE3DA59}\InprocServer32\ThreadingModel = "apartment"	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2116 wrote to memory of 2348	2116	rundll32.exe	29
PID 2116 wrote to memory of 2348	2116	rundll32.exe	29
PID 2116 wrote to memory of 2348	2116	rundll32.exe	29
PID 2116 wrote to memory of 2348	2116	rundll32.exe	29
PID 2116 wrote to memory of 2348	2116	rundll32.exe	29
PID 2116 wrote to memory of 2348	2116	rundll32.exe	29
PID 2116 wrote to memory of 2348	2116	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d24f344ecaea0b7d88315cc0db15d433_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2116
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\d24f344ecaea0b7d88315cc0db15d433_JaffaCakes118.dll,#1
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2348

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

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/2348-1-0x0000000000150000-0x000000000018A000-memory.dmp

Filesize
232KB

Download
memory/2348-0-0x0000000000150000-0x000000000018A000-memory.dmp

Filesize
232KB

Download
memory/2348-3-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2348-2-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2348-4-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2348-5-0x0000000000150000-0x000000000018A000-memory.dmp

Filesize
232KB

Download
memory/2348-6-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download