10bcf0414ac0347454dcc5c8719ff35fc266c4c06a9bca789e8235bfb13cff99

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
01-07-2024 08:13

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General

Target

1a8ebf701b14220cfea18641528bed22_JaffaCakes118.dll
Size

272KB
MD5

1a8ebf701b14220cfea18641528bed22
SHA1

d9eb5f2cbe562f9a1931f16205e99bfd91358f4f
SHA256

10bcf0414ac0347454dcc5c8719ff35fc266c4c06a9bca789e8235bfb13cff99
SHA512

51af9d47f00889001558fa20877e9aa8bcfdbba2a20d60a8893be637a85d9583833f60dfca15252512011588dba1e71a065bdd4d54d89e1d2ef8e2a17c37f883
SSDEEP

3072:EpBLGlRkonVfFWmA+QvJ9WhhL0HLFRl6RM5CqJpfRj5WOLHqUS+Gs:EPLGllVYb+Qv/WhyURBo5t8s

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

Processes:

regsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{1E905554-CF1D-4C5B-9085-A74F8E76A042}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{1E905554-CF1D-4C5B-9085-A74F8E76A042}\ = "FirstClick"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{1E905554-CF1D-4C5B-9085-A74F8E76A042}\NoExplorer = "1"	regsvr32.exe

Modifies registry class 50 IoCs

Processes:

regsvr32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\FirstClick.FirstClickBHO.1\ = "FirstClickBHO Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E905554-CF1D-4C5B-9085-A74F8E76A042}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{541A7A9E-6CE8-46BD-8E3B-EC9A62EABC01}\TypeLib\ = "{EF291573-D7F2-4CE9-BDD6-7E457519E24A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\FirstClick.FirstClickBHO\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\FirstClick.FirstClickBHO\CurVer\ = "FirstClick.FirstClickBHO.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E905554-CF1D-4C5B-9085-A74F8E76A042}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E905554-CF1D-4C5B-9085-A74F8E76A042}\ProgID\ = "FirstClick.FirstClickBHO.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF291573-D7F2-4CE9-BDD6-7E457519E24A}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{541A7A9E-6CE8-46BD-8E3B-EC9A62EABC01}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{541A7A9E-6CE8-46BD-8E3B-EC9A62EABC01}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E905554-CF1D-4C5B-9085-A74F8E76A042}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF291573-D7F2-4CE9-BDD6-7E457519E24A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{541A7A9E-6CE8-46BD-8E3B-EC9A62EABC01}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{70E74DE8-A621-4C79-A6DF-7CD84F13D58C}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\FirstClick.DLL\AppID = "{70E74DE8-A621-4C79-A6DF-7CD84F13D58C}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\FirstClick.FirstClickBHO.1\CLSID\ = "{1E905554-CF1D-4C5B-9085-A74F8E76A042}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E905554-CF1D-4C5B-9085-A74F8E76A042}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF291573-D7F2-4CE9-BDD6-7E457519E24A}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF291573-D7F2-4CE9-BDD6-7E457519E24A}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{541A7A9E-6CE8-46BD-8E3B-EC9A62EABC01}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E905554-CF1D-4C5B-9085-A74F8E76A042}\TypeLib\ = "{EF291573-D7F2-4CE9-BDD6-7E457519E24A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{541A7A9E-6CE8-46BD-8E3B-EC9A62EABC01}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{541A7A9E-6CE8-46BD-8E3B-EC9A62EABC01}\TypeLib\ = "{EF291573-D7F2-4CE9-BDD6-7E457519E24A}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\FirstClick.FirstClickBHO\CLSID\ = "{1E905554-CF1D-4C5B-9085-A74F8E76A042}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF291573-D7F2-4CE9-BDD6-7E457519E24A}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1a8ebf701b14220cfea18641528bed22_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{541A7A9E-6CE8-46BD-8E3B-EC9A62EABC01}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{70E74DE8-A621-4C79-A6DF-7CD84F13D58C}\ = "FirstClick"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\FirstClick.FirstClickBHO.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{541A7A9E-6CE8-46BD-8E3B-EC9A62EABC01}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF291573-D7F2-4CE9-BDD6-7E457519E24A}\1.0\ = "FirstClick 1.0 Çü½Ä ¶óÀÌºê·¯¸®"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{541A7A9E-6CE8-46BD-8E3B-EC9A62EABC01}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF291573-D7F2-4CE9-BDD6-7E457519E24A}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF291573-D7F2-4CE9-BDD6-7E457519E24A}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\FirstClick.FirstClickBHO.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\FirstClick.FirstClickBHO	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\FirstClick.FirstClickBHO\ = "FirstClickBHO Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{541A7A9E-6CE8-46BD-8E3B-EC9A62EABC01}\ = "IFirstClickBHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\FirstClick.DLL	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E905554-CF1D-4C5B-9085-A74F8E76A042}\ = "FirstClickBHO Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E905554-CF1D-4C5B-9085-A74F8E76A042}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E905554-CF1D-4C5B-9085-A74F8E76A042}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{541A7A9E-6CE8-46BD-8E3B-EC9A62EABC01}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\FirstClick.FirstClickBHO\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E905554-CF1D-4C5B-9085-A74F8E76A042}\VersionIndependentProgID\ = "FirstClick.FirstClickBHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E905554-CF1D-4C5B-9085-A74F8E76A042}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF291573-D7F2-4CE9-BDD6-7E457519E24A}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF291573-D7F2-4CE9-BDD6-7E457519E24A}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{541A7A9E-6CE8-46BD-8E3B-EC9A62EABC01}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E905554-CF1D-4C5B-9085-A74F8E76A042}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1a8ebf701b14220cfea18641528bed22_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{541A7A9E-6CE8-46BD-8E3B-EC9A62EABC01}\ = "IFirstClickBHO"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 2252 wrote to memory of 2908	2252	regsvr32.exe	regsvr32.exe
PID 2252 wrote to memory of 2908	2252	regsvr32.exe	regsvr32.exe
PID 2252 wrote to memory of 2908	2252	regsvr32.exe	regsvr32.exe
PID 2252 wrote to memory of 2908	2252	regsvr32.exe	regsvr32.exe
PID 2252 wrote to memory of 2908	2252	regsvr32.exe	regsvr32.exe
PID 2252 wrote to memory of 2908	2252	regsvr32.exe	regsvr32.exe
PID 2252 wrote to memory of 2908	2252	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\1a8ebf701b14220cfea18641528bed22_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2252

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\1a8ebf701b14220cfea18641528bed22_JaffaCakes118.dll
2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2908

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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