8bf4bc302525f68ee62fb9fbb0dca6dc19c9d874e217604e4edbacd4d0d53727

General

Target
e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe
Size 45KB
Sample240408-k761madf96
SHA256 8bf4bc302525f68ee62fb9fbb0dca6dc19c9d874e217604e4edbacd4d0d53727
MD5 e71f4e9b00a1ae28aec4161a4f889d73
SHA1 003b9972b991488a7e8db93a7e609d15b51405fd
SHA512 37c45c7bc6494fa11deef29042f18fdf04437216e63f22142f218d9922051765cf01baf7e07bc8bce6a89392802af0f99786a98e9458def5480dbdcbd2eade72
SSDEEP 768:kcTSgCLyEO/hTj+XHsIYdnm+CG6uVeywXx3Op+l/g3MZc86pVcSaZZLF2RQ:DKyEOQHsJmSVej5Op+Rg3MZc1pYnLF
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

adware persistence stealer

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\explorer\run	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\dcomcfg.exe = "dcomcfg.exe"	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe

Loads dropped DLL 2 IoCs

pid	Process
2124	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe
2124	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe

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

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{f79fd28e-36ee-4989-aa61-9dd8e30a82fa}	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{f79fd28e-36ee-4989-aa61-9dd8e30a82fa}\	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\hp100.tmp	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\stdole3.tlb	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\stdole3.tlb	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\simpole.tlb	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe

Modifies Internet Explorer settings 1 TTPs 3 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Internet Explorer\Main	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Internet Explorer\Search	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Internet Explorer\SearchUrl	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe

Modifies Internet Explorer start page 1 TTPs 1 IoCs

stealer

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Start Page = "about:blank"	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe

Modifies registry class 7 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F79FD28E-36EE-4989-AA61-9DD8E30A82FA}\InprocServer32\ = "C:\\Windows\\SysWow64\\hp100.tmp"	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F79FD28E-36EE-4989-AA61-9DD8E30A82FA}\InprocServer32\ThreadingModel = "Apartment"	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{f79fd28e-36ee-4989-aa61-9dd8e30a82fa}\InprocServer32	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F79FD28E-36EE-4989-AA61-9DD8E30A82FA}	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F79FD28E-36EE-4989-AA61-9DD8E30A82FA}\ = "Nothing"	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F79FD28E-36EE-4989-AA61-9DD8E30A82FA}\InprocServer32	e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e71f4e9b00a1ae28aec4161a4f889d73_JaffaCakes118.exe"
1⤵
- Adds policy Run key to start application
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- Modifies Internet Explorer settings
- Modifies Internet Explorer start page
- Modifies registry class
PID:2124

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Browser Extensions

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

4

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

hp100.tmp

Path C:\Windows\SysWOW64\hp100.tmp
Size 27KB
SHA256 15dc20adabb0dfbdddc594b54835706ec26c0e4f743959bd78dc77975c9b0651
MD5 2bd6d584f12193681399e0dd3d8d4281
SHA1 dfe33dcf79268e19d4e92d2b40f2f5ad5c9b0348
SHA512 01160d1d19d5dc773ab755a2da1db889e68b25598b8872ba9c11dbeefffe931b632a3cdfb4699fc275d80a525c7cd4dcfe9e2f6b92bba4e825b7cf968dd59242
SSDEEP 384:KEJVoAdifQERO0BkLhb/IOWXfSATDB1BIhVHCKdtlO+M/mukZJSXCU2TvGbiQDwv:vVoAdiPHC9bbYrBYJttlhMaSXCfAbIj
MD5 SHA1 SHA512 SSDEEP

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simpole.tlb

Path C:\Windows\SysWOW64\simpole.tlb
Size 6KB
SHA256 1c6a647616137445d251c342db13407ed17454a93a3c93f4cbab97a90e0e1884
MD5 b506ea15762ea2004e3947aa07c62d29
SHA1 799ee946c3555357194eb4cb30583a9665428958
SHA512 c5c97da0c606d0542a5dfc59321fdecc20a751bf6644ca80dd85c6f8d6731f7a7d2f706c7f3cd477d640a637d4c16c308527d7710657d75f29c695d36f001fef
SSDEEP 96:ycCrvt+R8F0Cd2LlfVRKh3kkkhyM3HJ2/nXE1:bCLt+Ax2TS0kkhyGkf6
MD5 SHA1 SHA512 SSDEEP

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads