a4f373ca90a906e601a376d3cd7ce3b75da22c37dfc69382c5ab1f52751afc42

General

Target

b88f49666f6c8d7ef3f906b80dd52996_JaffaCakes118.dll
Size

708KB
MD5

b88f49666f6c8d7ef3f906b80dd52996
SHA1

75ca3e0fee55720c919d36815284fd819439d5a0
SHA256

a4f373ca90a906e601a376d3cd7ce3b75da22c37dfc69382c5ab1f52751afc42
SHA512

661ed88ace08f905f9acfcb2ca5cc06e32929171b48a89d3d81f0597ffb01fa0b1c74a9bb3a28f6eacabde1b69815f1a52c5ece4e39d76239d3865f638779f41
SSDEEP

6144:XMOIg5oNh+o+m5voltUMSxSHrQr/3yp578VnGcmD9X6WI7JuvcP7b3y7gTKF12h7:XA+jtUZ/S78lLuvcjToNei+6HL1Jf+

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4048	rgq86C4.tmp

Installs/modifies Browser Helper Object 2 TTPs 2 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\{4240F0D1-6BC2-4CEF-BFB5-65CFAA444710}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{4240F0D1-6BC2-4CEF-BFB5-65CFAA444710}\ = "Mirar"	regsvr32.exe

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	rgq86C4.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies Internet Explorer settings 1 TTPs 18 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\DefaultScope = "{FF80E5FC-6D36-45AA-9950-0ACA4AAA0A83}"	regsvr32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Use Custom Search URL = "1"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Toolbar\{4240F0D0-6BC2-4CEF-BFB5-65CFAA444710} = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\SearchScopes\{FF80E5FC-6D36-45AA-9950-0ACA4AAA0A83}\URL = "http://www.mirarsearch.com/?q={searchTerms}&a=SEARCH"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{FF80E5FC-6D36-45AA-9950-0ACA4AAA0A83}\URL = "http://www.mirarsearch.com/?q={searchTerms}&a=SEARCH"	regsvr32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{FF80E5FC-6D36-45AA-9950-0ACA4AAA0A83}\Codepage = "65001"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{FF80E5FC-6D36-45AA-9950-0ACA4AAA0A83}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Toolbar	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\SearchScopes\DefaultScope = "{FF80E5FC-6D36-45AA-9950-0ACA4AAA0A83}"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{FF80E5FC-6D36-45AA-9950-0ACA4AAA0A83}\DisplayName = "Search"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Search Bar = "http://www.mirarsearch.com/?useie5=1&q="	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\Use Custom Search URL = "1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\Search Bar = "http://www.mirarsearch.com/?useie5=1&q="	regsvr32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\WebBrowser\ITBarLayout = "0"	rgq86C4.tmp
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\SearchScopes\{FF80E5FC-6D36-45AA-9950-0ACA4AAA0A83}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\SearchScopes\{FF80E5FC-6D36-45AA-9950-0ACA4AAA0A83}\DisplayName = "Search"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\SearchScopes\{FF80E5FC-6D36-45AA-9950-0ACA4AAA0A83}\Codepage = "65001"	regsvr32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\WebBrowser\ITBar7Layout = "0"	rgq86C4.tmp

Modifies Internet Explorer start page 1 TTPs 1 IoCs

stealer

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Start Page = "http://home.adbsearch.com/"	regsvr32.exe

Modifies registry class 18 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4240F0D0-6BC2-4CEF-BFB5-65CFAA444710}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4240F0D0-6BC2-4CEF-BFB5-65CFAA444710}\Properties	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4240F0D0-6BC2-4CEF-BFB5-65CFAA444710}\Properties\BuildName = "876993"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4240F0D1-6BC2-4CEF-BFB5-65CFAA444710}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4240F0D1-6BC2-4CEF-BFB5-65CFAA444710}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b88f49666f6c8d7ef3f906b80dd52996_JaffaCakes118.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4240F0D1-6BC2-4CEF-BFB5-65CFAA444710}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4240F0D1-6BC2-4CEF-BFB5-65CFAA444710}\TypeLib\ = "{88D4AD00-6C2F-4C94-9413-13EE4B22BFEF}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4240F0D0-6BC2-4CEF-BFB5-65CFAA444710}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b88f49666f6c8d7ef3f906b80dd52996_JaffaCakes118.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4240F0D0-6BC2-4CEF-BFB5-65CFAA444710}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4240F0D0-6BC2-4CEF-BFB5-65CFAA444710}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4240F0D1-6BC2-4CEF-BFB5-65CFAA444710}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4240F0D1-6BC2-4CEF-BFB5-65CFAA444710}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4240F0D0-6BC2-4CEF-BFB5-65CFAA444710}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4240F0D1-6BC2-4CEF-BFB5-65CFAA444710}\ = "Mirar"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4240F0D0-6BC2-4CEF-BFB5-65CFAA444710}\TypeLib\ = "{88D4AD00-6C2F-4C94-9413-13EE4B22BFEF}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4240F0D0-6BC2-4CEF-BFB5-65CFAA444710}\Properties\Version = "78"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4240F0D0-6BC2-4CEF-BFB5-65CFAA444710}\Properties\Ticket = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4240F0D0-6BC2-4CEF-BFB5-65CFAA444710}\ = "Mirar"	regsvr32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4048	rgq86C4.tmp

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1900 wrote to memory of 3452	1900	regsvr32.exe	84
PID 1900 wrote to memory of 3452	1900	regsvr32.exe	84
PID 1900 wrote to memory of 3452	1900	regsvr32.exe	84
PID 3452 wrote to memory of 4048	3452	regsvr32.exe	87
PID 3452 wrote to memory of 4048	3452	regsvr32.exe	87
PID 3452 wrote to memory of 4048	3452	regsvr32.exe	87

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b88f49666f6c8d7ef3f906b80dd52996_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1900
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\b88f49666f6c8d7ef3f906b80dd52996_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Modifies Internet Explorer start page
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3452
- - C:\Users\Admin\AppData\Local\Temp\rgq86C4.tmp
    C:\Users\Admin\AppData\Local\Temp\rgq86C4.tmp
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:4048

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\rgq86C4.tmp

Filesize
188KB

MD5
0b27574ed8b016855e469e0bcea5ac4a

SHA1
12a5302d5991acaadb039921aa0287d50470785d

SHA256
59c1b7664414fa8127e33617c5d2dcf89b163680855c74463200bfa4eaa3a889

SHA512
19a028cb4bb5025593e626cc5feebe3fd00536ac84715041ddabee3cf9d0b824065491697d80ba2ce0da7cd289e30475b810ccd024e3e30525f38124c6648462

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads