d76ea2765a19e5bf5fc5311a8cf5319fb6c3bf2cf0925b8b80ae2977a95ed3a3

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04/12/2024, 14:58

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General

Target

c3135961b640aa7bf38faa9fb2416050_JaffaCakes118.dll
Size

35KB
MD5

c3135961b640aa7bf38faa9fb2416050
SHA1

342adcd4efffc2d2259f90d2e07df5dbc287031f
SHA256

d76ea2765a19e5bf5fc5311a8cf5319fb6c3bf2cf0925b8b80ae2977a95ed3a3
SHA512

2f7d1862b0e33288821ebc34a0d37474bf77bd72e69c19f8bf6cf3e2c6696b765f020183fa5655667811dbf69a34812388c470e9b7120d2d69dc21b25630c8f1
SSDEEP

768:HV6MRheslbAoRkvTKUO+BpaJBmz58YMb2JaI3Lf0ZMqe:H3ewko6rBA+5RnJaesO3

Score

6^/10

adware discovery stealer upx

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\{5321E378-FFAD-4999-8C62-03CA8155F0B3}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{5321E378-FFAD-4999-8C62-03CA8155F0B3}\ = "BHO Class"	regsvr32.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2076-0-0x0000000010000000-0x0000000010019000-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 46 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Replace.HBO\CurVer\ = "Replace.HBO.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5321E378-FFAD-4999-8C62-03CA8155F0B3}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{516A36EA-AFE2-4965-A492-B198B7F7B018}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F864100B-0250-43FB-AE95-F50C5537B178}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F864100B-0250-43FB-AE95-F50C5537B178}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Replace.HBO\ = "HBO Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Replace.HBO\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5321E378-FFAD-4999-8C62-03CA8155F0B3}\ = "HBO Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F864100B-0250-43FB-AE95-F50C5537B178}\ = "IHBO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{516A36EA-AFE2-4965-A492-B198B7F7B018}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{516A36EA-AFE2-4965-A492-B198B7F7B018}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F864100B-0250-43FB-AE95-F50C5537B178}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F864100B-0250-43FB-AE95-F50C5537B178}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F864100B-0250-43FB-AE95-F50C5537B178}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F864100B-0250-43FB-AE95-F50C5537B178}\TypeLib\ = "{516A36EA-AFE2-4965-A492-B198B7F7B018}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Replace.HBO.1\CLSID\ = "{5321E378-FFAD-4999-8C62-03CA8155F0B3}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5321E378-FFAD-4999-8C62-03CA8155F0B3}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5321E378-FFAD-4999-8C62-03CA8155F0B3}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{516A36EA-AFE2-4965-A492-B198B7F7B018}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F864100B-0250-43FB-AE95-F50C5537B178}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Replace.HBO\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5321E378-FFAD-4999-8C62-03CA8155F0B3}\VersionIndependentProgID\ = "Replace.HBO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5321E378-FFAD-4999-8C62-03CA8155F0B3}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\C31359~1.DLL"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5321E378-FFAD-4999-8C62-03CA8155F0B3}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5321E378-FFAD-4999-8C62-03CA8155F0B3}\TypeLib\ = "{516A36EA-AFE2-4965-A492-B198B7F7B018}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{516A36EA-AFE2-4965-A492-B198B7F7B018}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c3135961b640aa7bf38faa9fb2416050_JaffaCakes118.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Replace.HBO.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{516A36EA-AFE2-4965-A492-B198B7F7B018}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{516A36EA-AFE2-4965-A492-B198B7F7B018}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F864100B-0250-43FB-AE95-F50C5537B178}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F864100B-0250-43FB-AE95-F50C5537B178}\ = "IHBO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F864100B-0250-43FB-AE95-F50C5537B178}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Replace.HBO.1\ = "HBO Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Replace.HBO.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Replace.HBO	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Replace.HBO\CLSID\ = "{5321E378-FFAD-4999-8C62-03CA8155F0B3}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5321E378-FFAD-4999-8C62-03CA8155F0B3}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{516A36EA-AFE2-4965-A492-B198B7F7B018}\1.0\ = "Replace 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F864100B-0250-43FB-AE95-F50C5537B178}\TypeLib\ = "{516A36EA-AFE2-4965-A492-B198B7F7B018}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F864100B-0250-43FB-AE95-F50C5537B178}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5321E378-FFAD-4999-8C62-03CA8155F0B3}\ProgID\ = "Replace.HBO.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5321E378-FFAD-4999-8C62-03CA8155F0B3}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5321E378-FFAD-4999-8C62-03CA8155F0B3}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{516A36EA-AFE2-4965-A492-B198B7F7B018}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{516A36EA-AFE2-4965-A492-B198B7F7B018}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F864100B-0250-43FB-AE95-F50C5537B178}\ProxyStubClsid32	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1852 wrote to memory of 2076	1852	regsvr32.exe	31
PID 1852 wrote to memory of 2076	1852	regsvr32.exe	31
PID 1852 wrote to memory of 2076	1852	regsvr32.exe	31
PID 1852 wrote to memory of 2076	1852	regsvr32.exe	31
PID 1852 wrote to memory of 2076	1852	regsvr32.exe	31
PID 1852 wrote to memory of 2076	1852	regsvr32.exe	31
PID 1852 wrote to memory of 2076	1852	regsvr32.exe	31

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\c3135961b640aa7bf38faa9fb2416050_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1852
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\c3135961b640aa7bf38faa9fb2416050_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2076

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/2076-0-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

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