2614037e739f887b035352494471e2076ebeae1cd1cabd284748e145d992bdc2

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
29/09/2024, 15:25

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General

Target

fecf90bbf80fb03d6e27d10fdbc89bc8_JaffaCakes118.dll
Size

86KB
MD5

fecf90bbf80fb03d6e27d10fdbc89bc8
SHA1

90358de5bceeba6e86e3705b5f913cb81640f305
SHA256

2614037e739f887b035352494471e2076ebeae1cd1cabd284748e145d992bdc2
SHA512

66ec2b22830f2f06d2a00109c80e0a27b2722438ff79ed9ab929c85bff94f1a6b7545bce444e5ffd5977625e6f327a3f08394d32485e718e9a84e47dac5ae4d1
SSDEEP

1536:VYvynn+A2VKzuaeUbQtK3E5+O4m6Rrbl/FvfAPtri8pDUfdo6R/43FfQ:ev4+A9zdvbjTPbHgPtrCdtRw3+

Score

6^/10

adware discovery stealer upx

Malware Config

Signatures

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\{7D81BD1B-E0C4-445B-8AB5-B0F9E4F38213}	regsvr32.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1792-0-0x00000000006F0000-0x000000000072C000-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	regsvr32.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7D81BD1B-E0C4-445B-8AB5-B0F9E4F38213}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7D81BD1B-E0C4-445B-8AB5-B0F9E4F38213}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fecf90bbf80fb03d6e27d10fdbc89bc8_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7D81BD1B-E0C4-445B-8AB5-B0F9E4F38213}\InprocServer32\ThreadingModel = "apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7D81BD1B-E0C4-445B-8AB5-B0F9E4F38213}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1676 wrote to memory of 1792	1676	regsvr32.exe	30
PID 1676 wrote to memory of 1792	1676	regsvr32.exe	30
PID 1676 wrote to memory of 1792	1676	regsvr32.exe	30
PID 1676 wrote to memory of 1792	1676	regsvr32.exe	30
PID 1676 wrote to memory of 1792	1676	regsvr32.exe	30
PID 1676 wrote to memory of 1792	1676	regsvr32.exe	30
PID 1676 wrote to memory of 1792	1676	regsvr32.exe	30

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\fecf90bbf80fb03d6e27d10fdbc89bc8_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1676
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\fecf90bbf80fb03d6e27d10fdbc89bc8_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:1792

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/1792-0-0x00000000006F0000-0x000000000072C000-memory.dmp

Filesize
240KB

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