e5db28613bfab743266ed9a85289bc618b88345faadaad0e76bb35408c02aaf5

Analysis

max time kernel
125s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
04/07/2024, 04:01

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

248f436f6d98bff390055ea13f935f14_JaffaCakes118.dll
Size

71KB
MD5

248f436f6d98bff390055ea13f935f14
SHA1

d6f42a7d5182abd3bea0c2c342af2e92d5cbb1f9
SHA256

e5db28613bfab743266ed9a85289bc618b88345faadaad0e76bb35408c02aaf5
SHA512

e30a4fa6b2f4079dcc80d41e275ff50a87b5eae2d179cf659a99e6b1c1b95922f90f2b8251278de657592d8194ec0d33dcec273305ca85635aac28a0cc71caf6
SSDEEP

1536:MhA8pJv17kHxaqqQSmoGpdQBZ2U9bQE3NnL/Fp3MB:MhA87vBqq5BGpdz8bQE3NhlMB

Score

7^/10

adware 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/2928-0-0x0000000010000000-0x0000000010036000-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\{FFFFEECE-FF18-8222-2FB0-2935B9EA0830}	regsvr32.exe

Modifies registry class 42 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FFFFEECE-FF18-8222-2FB0-2935B9EA0831}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FFFFEECE-FF18-8222-2FB0-2935B9EA0830}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FFFFEECE-FF18-8222-2FB0-2935B9EA0830}\VersionIndependentProgID\ = "urlmon.urlmon"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FFFFEECE-FF18-8222-2FB0-2935B9EA0832}\TypeLib\ = "{FFFFEECE-FF18-8222-2FB0-2935B9EA0831}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FFFFEECE-FF18-8222-2FB0-2935B9EA0832}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\urlmon.urlmon	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FFFFEECE-FF18-8222-2FB0-2935B9EA0830}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FFFFEECE-FF18-8222-2FB0-2935B9EA0832}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FFFFEECE-FF18-8222-2FB0-2935B9EA0832}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FFFFEECE-FF18-8222-2FB0-2935B9EA0832}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\urlmon.urlmon\ = "urlmon Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FFFFEECE-FF18-8222-2FB0-2935B9EA0830}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FFFFEECE-FF18-8222-2FB0-2935B9EA0831}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FFFFEECE-FF18-8222-2FB0-2935B9EA0832}\ = "IIEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FFFFEECE-FF18-8222-2FB0-2935B9EA0832}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FFFFEECE-FF18-8222-2FB0-2935B9EA0830}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FFFFEECE-FF18-8222-2FB0-2935B9EA0830}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FFFFEECE-FF18-8222-2FB0-2935B9EA0830}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\248F43~1.DLL"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FFFFEECE-FF18-8222-2FB0-2935B9EA0831}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FFFFEECE-FF18-8222-2FB0-2935B9EA0831}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\248f436f6d98bff390055ea13f935f14_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FFFFEECE-FF18-8222-2FB0-2935B9EA0832}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\urlmon.urlmon.1\ = "urlmon Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\urlmon.urlmon.1\CLSID\ = "{FFFFEECE-FF18-8222-2FB0-2935B9EA0830}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\urlmon.urlmon\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\urlmon.urlmon\CurVer\ = "urlmon.urlmon.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FFFFEECE-FF18-8222-2FB0-2935B9EA0831}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FFFFEECE-FF18-8222-2FB0-2935B9EA0831}\1.0\ = "urlmon 1.0 Library Type"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FFFFEECE-FF18-8222-2FB0-2935B9EA0831}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FFFFEECE-FF18-8222-2FB0-2935B9EA0831}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FFFFEECE-FF18-8222-2FB0-2935B9EA0832}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FFFFEECE-FF18-8222-2FB0-2935B9EA0832}\ = "IIEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\urlmon.urlmon.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FFFFEECE-FF18-8222-2FB0-2935B9EA0830}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FFFFEECE-FF18-8222-2FB0-2935B9EA0830}\ProgID\ = "urlmon.urlmon.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FFFFEECE-FF18-8222-2FB0-2935B9EA0831}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FFFFEECE-FF18-8222-2FB0-2935B9EA0831}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FFFFEECE-FF18-8222-2FB0-2935B9EA0832}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FFFFEECE-FF18-8222-2FB0-2935B9EA0832}\TypeLib\ = "{FFFFEECE-FF18-8222-2FB0-2935B9EA0831}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\urlmon.urlmon.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FFFFEECE-FF18-8222-2FB0-2935B9EA0830}\ = "urlmon Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FFFFEECE-FF18-8222-2FB0-2935B9EA0832}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FFFFEECE-FF18-8222-2FB0-2935B9EA0832}\ProxyStubClsid32	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4972 wrote to memory of 2928	4972	regsvr32.exe	88
PID 4972 wrote to memory of 2928	4972	regsvr32.exe	88
PID 4972 wrote to memory of 2928	4972	regsvr32.exe	88

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\248f436f6d98bff390055ea13f935f14_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4972
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\248f436f6d98bff390055ea13f935f14_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2928

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=1280,i,1697479186275492802,18058102846092193784,262144 --variations-seed-version --mojo-platform-channel-handle=4412 /prefetch:8
1⤵
PID:3540

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2928-0-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download