09f61a04f81fd0850b93ad78cedfd947b6385f5b884d6c1eef7d1805bac38be4

General

Target

a35d1b3784a3d16e85575f176142f1f5_JaffaCakes118.dll
Size

126KB
MD5

a35d1b3784a3d16e85575f176142f1f5
SHA1

f1d17374cb27b7f13b3cf47a548bae5345ba3937
SHA256

09f61a04f81fd0850b93ad78cedfd947b6385f5b884d6c1eef7d1805bac38be4
SHA512

67dc519ec90b0219642a4489867afed4a6db5bf602c3d2d5530b92365d22b400a40d4b08bd6c8b741a61b903657ec60596da9a63a1a8970b5be79b30eb43b3e6
SSDEEP

3072:SLk53q0G7scMCvDuIK16SlWtOAuj/LCElwZnR:SLk187RMCDuVk2Wttuj/LCywZnR

Score

7^/10

adware discovery stealer upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2180-0-0x0000000010000000-0x0000000010060000-memory.dmp	upx

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\{500BCA15-57A7-4eaf-8143-8C619470B13D}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{500BCA15-57A7-4eaf-8143-8C619470B13D}\ = "XML module"	regsvr32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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

Modifies registry class 27 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML\ = "XML Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DBDD741E-2CC2-E987-F8B9-BC77991C520E}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\ProgID\ = "XML.XML.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DBDD741E-2CC2-E987-F8B9-BC77991C520E}\.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a35d1b3784a3d16e85575f176142f1f5_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML\CLSID\ = "{500BCA15-57A7-4eaf-8143-8C619470B13D}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DBDD741E-2CC2-E987-F8B9-BC77991C520E}\.0\ = "XML Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML\CurVer\ = "XML.XML.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\TypeLib\ = "{DBDD741E-2CC2-E987-F8B9-BC77991C520E}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\VersionIndependentProgID\ = "XML.XML"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DBDD741E-2CC2-E987-F8B9-BC77991C520E}\.0\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a35d1b3784a3d16e85575f176142f1f5_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\ = "XML Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\Install = "OK"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML.1\ = "XML Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML.1\CLSID\ = "{500BCA15-57A7-4eaf-8143-8C619470B13D}"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 2180	2080	regsvr32.exe	30
PID 2080 wrote to memory of 2180	2080	regsvr32.exe	30
PID 2080 wrote to memory of 2180	2080	regsvr32.exe	30
PID 2080 wrote to memory of 2180	2080	regsvr32.exe	30
PID 2080 wrote to memory of 2180	2080	regsvr32.exe	30
PID 2080 wrote to memory of 2180	2080	regsvr32.exe	30
PID 2080 wrote to memory of 2180	2080	regsvr32.exe	30

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\a35d1b3784a3d16e85575f176142f1f5_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2080
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\a35d1b3784a3d16e85575f176142f1f5_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2180