331154d6f9e7734f5eaebc970dfc7c3616c983f72d411da110a418a4d7cacb0c

General

Target

ba1fc8a1073bf0547d3d14a3a464152b_JaffaCakes118.exe
Size

317KB
MD5

ba1fc8a1073bf0547d3d14a3a464152b
SHA1

af179884275df3b482223c9807d947fb8bce6395
SHA256

331154d6f9e7734f5eaebc970dfc7c3616c983f72d411da110a418a4d7cacb0c
SHA512

b95b3a9d32c777978520556cb5e23fb518f91893ffca836cb03f2937591ca6e909ecabcef51276673d9d188703d490e59d5f172e2b37614c6aa132a690f7238f
SSDEEP

6144:aA3xt2BoRpY4oEspnVDgF7zSuJvINP9LoOQVxrrbzum4LpMGMe:aA72BoRGFEuDgYTLuH/u

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
916	Regsvr32.exe

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\{34C1F70A-CA00-4B6D-A827-01D468AB2D1B}	Regsvr32.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\Media\media-update.dll	ba1fc8a1073bf0547d3d14a3a464152b_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ba1fc8a1073bf0547d3d14a3a464152b_JaffaCakes118.exe

Modifies Internet Explorer start page 1 TTPs 1 IoCs

stealer

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Start Page = "http://www.9249.com/?s"	ba1fc8a1073bf0547d3d14a3a464152b_JaffaCakes118.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34C1F70A-CA00-4B6D-A827-01D468AB2D1B}\InprocServer32	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34C1F70A-CA00-4B6D-A827-01D468AB2D1B}\InprocServer32\ThreadingModel = "Apartment"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\media-update.IEExtend	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\media-update.IEExtend\Clsid	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34C1F70A-CA00-4B6D-A827-01D468AB2D1B}\ProgID\ = "media-update.IEExtend"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34C1F70A-CA00-4B6D-A827-01D468AB2D1B}	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34C1F70A-CA00-4B6D-A827-01D468AB2D1B}\	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\media-update.IEExtend\Clsid\ = "{34C1F70A-CA00-4B6D-A827-01D468AB2D1B}"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34C1F70A-CA00-4B6D-A827-01D468AB2D1B}\ProgID	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34C1F70A-CA00-4B6D-A827-01D468AB2D1B}\InprocServer32\ = "C:\\Windows\\Media\\media-update.dll"	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\media-update.IEExtend\	Regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1908 wrote to memory of 916	1908	ba1fc8a1073bf0547d3d14a3a464152b_JaffaCakes118.exe	84
PID 1908 wrote to memory of 916	1908	ba1fc8a1073bf0547d3d14a3a464152b_JaffaCakes118.exe	84
PID 1908 wrote to memory of 916	1908	ba1fc8a1073bf0547d3d14a3a464152b_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\ba1fc8a1073bf0547d3d14a3a464152b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ba1fc8a1073bf0547d3d14a3a464152b_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer start page
- Suspicious use of WriteProcessMemory
PID:1908
- C:\Windows\SysWOW64\Regsvr32.exe
  Regsvr32.exe /s C:\WINDOWS\Media\media-update.dll
  2⤵
  - Loads dropped DLL
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:916

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\Internet Explorer.url

Filesize
105B

MD5
af66b7930455743a072e5955010a52b4

SHA1
e025ad5313895ae6ae506f7cf396198823c34ea0

SHA256
dac8b3f6736854281bfc48508047dec2bbf1f2114293574fd3ccb1d1b64e0c5d

SHA512
1e0f92866341a33ffc3f9a6b61d9b64d119f8cc0f50eddfc41c1292ac1824b507f90839a258d79e0f3a82834718975a3aef4e416d419d76a2cf6fd814d38adee

Download Submit
C:\WINDOWS\Media\media-update.dll

Filesize
562KB

MD5
f495a9f34124164aca59b54d8f901b4d

SHA1
9b903cd369e72b451eefff0a7005e70283312ff1

SHA256
5abac7348ce80c115c2333ed4eaf766d37ad3fe2fd7f46281e381e05cdc73cfa

SHA512
175d4656a93cf81fad9befadce2ea619a8fa2094007de446eb55a0c4c084d62c48403606551e903ecf1f2d5e79176892db3b029945c3f77773a939babc2f786d

Download Submit
memory/1908-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads