f5a5cdf64a788f03392340c017e0c29390581652b76638573d5065866f5b2268

Analysis

max time kernel
132s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
22/08/2024, 08:43

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General

Target

b70352493d65efbb0445458262c3e478_JaffaCakes118.dll
Size

86KB
MD5

b70352493d65efbb0445458262c3e478
SHA1

96b3b62a4eba98727750cc2624b05e1301d1f84e
SHA256

f5a5cdf64a788f03392340c017e0c29390581652b76638573d5065866f5b2268
SHA512

1fcc72bfccb8541e3137b6483bfb8cf4a3219c6f87f7d6d343df429bcb0eb3a2280b00d20990e93393ccf7539f3e56939c53acd5b118f545eec10a053ee2caee
SSDEEP

1536:RYvynn+A2V0JaHkRhD7FU9Ba1wgyymjC4hwSlJf951L4d4W:Kv4+ALJYO7FSg1wgyN8Sb5

Score

7^/10

adware discovery stealer upx

Malware Config

Signatures

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2404-0-0x0000000000400000-0x000000000043C000-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\{8E973C80-2744-43FD-AA93-1EAEF8028A55}	regsvr32.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	regsvr32.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E973C80-2744-43FD-AA93-1EAEF8028A55}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E973C80-2744-43FD-AA93-1EAEF8028A55}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E973C80-2744-43FD-AA93-1EAEF8028A55}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b70352493d65efbb0445458262c3e478_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E973C80-2744-43FD-AA93-1EAEF8028A55}\InprocServer32\ThreadingModel = "apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1104 wrote to memory of 2404	1104	regsvr32.exe	84
PID 1104 wrote to memory of 2404	1104	regsvr32.exe	84
PID 1104 wrote to memory of 2404	1104	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b70352493d65efbb0445458262c3e478_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1104
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\b70352493d65efbb0445458262c3e478_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2404

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/2404-0-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

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