0f0641dd0731687ecacc41a76bef508b62525ca3e95b6313a6de315d811a0f1a

Analysis

max time kernel
95s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
14/09/2024, 07:10

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General

Target

dfb6c127befd0aaaa7c77ad8879237d2_JaffaCakes118.dll
Size

781KB
MD5

dfb6c127befd0aaaa7c77ad8879237d2
SHA1

58cc922ebbbc0b92318c8dc52cac5e1faddc9546
SHA256

0f0641dd0731687ecacc41a76bef508b62525ca3e95b6313a6de315d811a0f1a
SHA512

1f373e1044f1f3d4d2778b215ff48453cb2f96cefda3fa96b3bc7c0391687bf0a174cf5a3ebd16a98d7563bf92759f60720724816a445a199bbc4eb7807bf945
SSDEEP

12288:sxzIbzT6sEJEXKMESN88Wdta/rt5c9xd2ICgyRlheO7Ms3eWGs3IY8UKz1c:sxzgT6hJElN88Pvc9P2ICgy4MuWGYKzG

Score

6^/10

adware discovery stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 2 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\{4F528645-BADE-4EDF-AFE3-2BC22EBA0807}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{4F528645-BADE-4EDF-AFE3-2BC22EBA0807}\NoExplorer = "1"	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 14 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4F528645-BADE-4EDF-AFE3-2BC22EBA0807}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\dfb6c127befd0aaaa7c77ad8879237d2_JaffaCakes118.WGA Control Validation\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4F528645-BADE-4EDF-AFE3-2BC22EBA0807}\ProgID\ = "dfb6c127befd0aaaa7c77ad8879237d2_JaffaCakes118.WGA Control Validation"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4F528645-BADE-4EDF-AFE3-2BC22EBA0807}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4F528645-BADE-4EDF-AFE3-2BC22EBA0807}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dfb6c127befd0aaaa7c77ad8879237d2_JaffaCakes118.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4F528645-BADE-4EDF-AFE3-2BC22EBA0807}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4F528645-BADE-4EDF-AFE3-2BC22EBA0807}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\dfb6c127befd0aaaa7c77ad8879237d2_JaffaCakes118.WGA Control Validation\ = "Windows Genuine Advantage Control Validation"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4F528645-BADE-4EDF-AFE3-2BC22EBA0807}\ = "Windows Genuine Advantage Control Validation"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\dfb6c127befd0aaaa7c77ad8879237d2_JaffaCakes118.WGA Control Validation	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\dfb6c127befd0aaaa7c77ad8879237d2_JaffaCakes118.WGA Control Validation\Clsid\ = "{4F528645-BADE-4EDF-AFE3-2BC22EBA0807}"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1128 wrote to memory of 4524	1128	regsvr32.exe	83
PID 1128 wrote to memory of 4524	1128	regsvr32.exe	83
PID 1128 wrote to memory of 4524	1128	regsvr32.exe	83

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\dfb6c127befd0aaaa7c77ad8879237d2_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1128
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\dfb6c127befd0aaaa7c77ad8879237d2_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:4524

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

Replay Monitor

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Downloads

memory/4524-2-0x00000000007C2000-0x00000000007C3000-memory.dmp

Filesize
4KB

Download
memory/4524-1-0x00000000027B0000-0x00000000027E5000-memory.dmp

Filesize
212KB

Download
memory/4524-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/4524-3-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/4524-4-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/4524-5-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/4524-6-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download