345d7da4735539425dabd839e43961ae6065abff85ac4b120971af3819fab6cf

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
28/09/2024, 16:58

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General

Target

fcbf1ceb872de2b2b863bd033fca4738_JaffaCakes118.dll
Size

95KB
MD5

fcbf1ceb872de2b2b863bd033fca4738
SHA1

0dbb8dba59e7fdd8fab5ce1c6c0ec6f6e948e8ee
SHA256

345d7da4735539425dabd839e43961ae6065abff85ac4b120971af3819fab6cf
SHA512

22e9276678208a1d3040b0a01131f76bc3d6f111ffe12779727b66c7bad2480dfad7ea0d9fa14fc991ea40d68d418472af30a8808ed66fa3d34875d6436dfea3
SSDEEP

1536:nvs1W8DktHtqslQAGyEAWex2L8BY5J6H7o90///s1uvxeGMJG:vZtNh9L2Lv5Jt0/M6P

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\{2E2C7747-6BD2-F959-E35F-7D9A7E600D50}	regsvr32.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2468-0-0x0000000010000000-0x0000000010040000-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 42 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TaeXxccy.IEHlprObj.1\CLSID\ = "{2E2C7747-6BD2-F959-E35F-7D9A7E600D50}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2E2C7747-6BD2-F959-E35F-7D9A7E600D50}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2E2C7747-6BD2-F959-E35F-7D9A7E600D50}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\FCBF1C~1.DLL"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2E2C7746-6BD2-F959-E35F-7D9A7E600D50}\1.0\ = "TaeXxccy 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2E2C7746-6BD2-F959-E35F-7D9A7E600D50}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TaeXxccy.IEHlprObj\ = "TaeXxccy Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2E2C7747-6BD2-F959-E35F-7D9A7E600D50}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2E2C7746-6BD2-F959-E35F-7D9A7E600D50}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TaeXxccy.IEHlprObj.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2E2C7747-6BD2-F959-E35F-7D9A7E600D50}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2E2C7745-6BD2-F959-E35F-7D9A7E600D50}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2E2C7745-6BD2-F959-E35F-7D9A7E600D50}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2E2C7745-6BD2-F959-E35F-7D9A7E600D50}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2E2C7747-6BD2-F959-E35F-7D9A7E600D50}\VersionIndependentProgID\ = "TaeXxccy.IEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2E2C7746-6BD2-F959-E35F-7D9A7E600D50}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2E2C7746-6BD2-F959-E35F-7D9A7E600D50}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2E2C7746-6BD2-F959-E35F-7D9A7E600D50}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2E2C7746-6BD2-F959-E35F-7D9A7E600D50}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2E2C7745-6BD2-F959-E35F-7D9A7E600D50}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TaeXxccy.IEHlprObj.1\ = "TaeXxccy Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TaeXxccy.IEHlprObj.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TaeXxccy.IEHlprObj\CurVer\ = "TaeXxccy.IEHlprObj.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2E2C7747-6BD2-F959-E35F-7D9A7E600D50}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2E2C7747-6BD2-F959-E35F-7D9A7E600D50}\ = "TaeXxccy Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2E2C7745-6BD2-F959-E35F-7D9A7E600D50}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TaeXxccy.IEHlprObj	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2E2C7747-6BD2-F959-E35F-7D9A7E600D50}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2E2C7747-6BD2-F959-E35F-7D9A7E600D50}\ProgID\ = "TaeXxccy.IEHlprObj.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2E2C7747-6BD2-F959-E35F-7D9A7E600D50}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2E2C7746-6BD2-F959-E35F-7D9A7E600D50}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2E2C7746-6BD2-F959-E35F-7D9A7E600D50}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2E2C7746-6BD2-F959-E35F-7D9A7E600D50}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fcbf1ceb872de2b2b863bd033fca4738_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2E2C7745-6BD2-F959-E35F-7D9A7E600D50}\TypeLib\ = "{2E2C7746-6BD2-F959-E35F-7D9A7E600D50}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2E2C7745-6BD2-F959-E35F-7D9A7E600D50}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2E2C7745-6BD2-F959-E35F-7D9A7E600D50}\TypeLib\ = "{2E2C7746-6BD2-F959-E35F-7D9A7E600D50}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2E2C7745-6BD2-F959-E35F-7D9A7E600D50}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TaeXxccy.IEHlprObj\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2E2C7745-6BD2-F959-E35F-7D9A7E600D50}\ = "IIEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2E2C7745-6BD2-F959-E35F-7D9A7E600D50}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2E2C7745-6BD2-F959-E35F-7D9A7E600D50}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2E2C7745-6BD2-F959-E35F-7D9A7E600D50}\ = "IIEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2E2C7745-6BD2-F959-E35F-7D9A7E600D50}\TypeLib	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2456 wrote to memory of 2468	2456	regsvr32.exe	30
PID 2456 wrote to memory of 2468	2456	regsvr32.exe	30
PID 2456 wrote to memory of 2468	2456	regsvr32.exe	30
PID 2456 wrote to memory of 2468	2456	regsvr32.exe	30
PID 2456 wrote to memory of 2468	2456	regsvr32.exe	30
PID 2456 wrote to memory of 2468	2456	regsvr32.exe	30
PID 2456 wrote to memory of 2468	2456	regsvr32.exe	30

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\fcbf1ceb872de2b2b863bd033fca4738_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2456
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\fcbf1ceb872de2b2b863bd033fca4738_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2468

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/2468-0-0x0000000010000000-0x0000000010040000-memory.dmp

Filesize
256KB

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