f92f0a55af5d012e0524929713895e2ffefe0311ab9308e1d0a8aa7b83955fda

Analysis

max time kernel
93s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
13/07/2024, 16:34

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General

Target

427ae18d86d1163216e23551d4ef09cf_JaffaCakes118.dll
Size

555KB
MD5

427ae18d86d1163216e23551d4ef09cf
SHA1

337ffa2db95b8e03a3017702ed84666113512744
SHA256

f92f0a55af5d012e0524929713895e2ffefe0311ab9308e1d0a8aa7b83955fda
SHA512

f40b29f71ad6df76ed166541b5f22aed7b795db08fc1fdc8920ce1f1e6784bbdc42619f61f1cf3d7d2e8710548698ab49f20bc9021d4d504e5c567b3f2ab975d
SSDEEP

6144:EuVZOIIL4jp9QhlcebRY82X7EybcHbNRXXYZuDJOi0YBodw/AQ8/U0vSFqd6KYSp:npIL4kd6f4hHLnQI4X/UO650cG15

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

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{F7323DE8-9519-45B2-8F77-9FAF1FFA5736}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{F7323DE8-9519-45B2-8F77-9FAF1FFA5736}\ = "yvhlibP"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{F7323DE8-9519-45B2-8F77-9FAF1FFA5736}\NoExplorer = "1"	regsvr32.exe

Modifies registry class 64 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{755E20D5-0D04-4279-9EE0-4C5027D4C750}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5509CB1F-1FA7-4CCA-AA49-6737315FBE45}\ProgID\ = "yvhlib.BClass.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exfwocbadgswehe.Pystuitckfexg\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F7323DE8-9519-45B2-8F77-9FAF1FFA5736}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C7E40123-DE83-458F-A590-D6F6AC9E4CD8}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{755E20D5-0D04-4279-9EE0-4C5027D4C750}\NumMethods\ = "7"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5509CB1F-1FA7-4CCA-AA49-6737315FBE45}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exfwocbadgswehe.Pystuitckfexg\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F7323DE8-9519-45B2-8F77-9FAF1FFA5736}\ = "PPCM Data Decoder"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81F56B85-D63F-4267-B599-6DF71651C318}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\427ae18d86d1163216e23551d4ef09cf_JaffaCakes118.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exfwocbadgswehe.Mystuitckfexg.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F7323DE8-9519-45B2-8F77-9FAF1FFA5736}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C7E40123-DE83-458F-A590-D6F6AC9E4CD8}\1.0\HELPDIR\	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exfwocbadgswehe.Mystuitckfexg\CurVer\ = "3"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{755E20D5-0D04-4279-9EE0-4C5027D4C750}\TypeLib\ = "{C7E40123-DE83-458F-A590-D6F6AC9E4CD8}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C7E40123-DE83-458F-A590-D6F6AC9E4CD8}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{755E20D5-0D04-4279-9EE0-4C5027D4C750}\ProxyStubClsid32\ = "{81F56B85-D63F-4267-B599-6DF71651C318}"	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{49AE8F1B-54E7-4d8b-AE22-A1B4D709230B}\{B3A6E4C7-3FCA-4235-9B2D-3A302EDFC6F2} = 7b00460037003300320033004400450038002d0039003500310039002d0034003500420032002d0038004600370037002d003900460041004600310046004600410035003700330036007d00	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C7E40123-DE83-458F-A590-D6F6AC9E4CD8}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F7323DE8-9519-45B2-8F77-9FAF1FFA5736}\VersionIndependentProgID\ = "yvhlib.AClass"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{81F56B85-D63F-4267-B599-6DF71651C318}\ = "IPystuitckfexg"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{81F56B85-D63F-4267-B599-6DF71651C318}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\yvhlib.DLL\AppID = "{26723C9C-001D-419C-A083-D581FD52B3A7}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{755E20D5-0D04-4279-9EE0-4C5027D4C750}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{755E20D5-0D04-4279-9EE0-4C5027D4C750}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81F56B85-D63F-4267-B599-6DF71651C318}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{81F56B85-D63F-4267-B599-6DF71651C318}\ProxyStubClsid32\ = "{81F56B85-D63F-4267-B599-6DF71651C318}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5509CB1F-1FA7-4CCA-AA49-6737315FBE45}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5509CB1F-1FA7-4CCA-AA49-6737315FBE45}\TypeLib\ = "{C7E40123-DE83-458F-A590-D6F6AC9E4CD8}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exfwocbadgswehe.Pystuitckfexg.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F7323DE8-9519-45B2-8F77-9FAF1FFA5736}\ProgID\ = "yvhlib.AClass.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C7E40123-DE83-458F-A590-D6F6AC9E4CD8}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\427ae18d86d1163216e23551d4ef09cf_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81F56B85-D63F-4267-B599-6DF71651C318}\InProcServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{81F56B85-D63F-4267-B599-6DF71651C318}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exfwocbadgswehe.Mystuitckfexg\CLSID\ = "{5509CB1F-1FA7-4CCA-AA49-6737315FBE45}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{755E20D5-0D04-4279-9EE0-4C5027D4C750}\TypeLib\ = "{C7E40123-DE83-458F-A590-D6F6AC9E4CD8}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{755E20D5-0D04-4279-9EE0-4C5027D4C750}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exfwocbadgswehe.Pystuitckfexg\ = "yvhlibA Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{81F56B85-D63F-4267-B599-6DF71651C318}\TypeLib\ = "{C7E40123-DE83-458F-A590-D6F6AC9E4CD8}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exfwocbadgswehe.Mystuitckfexg	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{755E20D5-0D04-4279-9EE0-4C5027D4C750}\ = "IMystuitckfexg"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{81F56B85-D63F-4267-B599-6DF71651C318}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exfwocbadgswehe.Mystuitckfexg.1\CLSID\ = "{5509CB1F-1FA7-4CCA-AA49-6737315FBE45}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exfwocbadgswehe.Pystuitckfexg.1\CLSID\ = "{F7323DE8-9519-45B2-8F77-9FAF1FFA5736}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exfwocbadgswehe.Mystuitckfexg.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exfwocbadgswehe.Pystuitckfexg\CurVer\ = "2"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F7323DE8-9519-45B2-8F77-9FAF1FFA5736}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C7E40123-DE83-458F-A590-D6F6AC9E4CD8}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C7E40123-DE83-458F-A590-D6F6AC9E4CD8}\1.0\ = "yvhlib Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{81F56B85-D63F-4267-B599-6DF71651C318}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{81F56B85-D63F-4267-B599-6DF71651C318}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exfwocbadgswehe.Pystuitckfexg\CLSID\ = "{F7323DE8-9519-45B2-8F77-9FAF1FFA5736}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F7323DE8-9519-45B2-8F77-9FAF1FFA5736}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F7323DE8-9519-45B2-8F77-9FAF1FFA5736}\AppID = "{26723C9C-001D-419C-A083-D581FD52B3A7}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{81F56B85-D63F-4267-B599-6DF71651C318}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{755E20D5-0D04-4279-9EE0-4C5027D4C750}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000_Classes\WOW6432Node\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81F56B85-D63F-4267-B599-6DF71651C318}\ = "PSFactoryBuffer"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5509CB1F-1FA7-4CCA-AA49-6737315FBE45}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81F56B85-D63F-4267-B599-6DF71651C318}\InProcServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F7323DE8-9519-45B2-8F77-9FAF1FFA5736}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C7E40123-DE83-458F-A590-D6F6AC9E4CD8}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exfwocbadgswehe.Mystuitckfexg.1\ = "yvhlibB Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{81F56B85-D63F-4267-B599-6DF71651C318}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 212 wrote to memory of 224	212	regsvr32.exe	85
PID 212 wrote to memory of 224	212	regsvr32.exe	85
PID 212 wrote to memory of 224	212	regsvr32.exe	85

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\427ae18d86d1163216e23551d4ef09cf_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:212
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\427ae18d86d1163216e23551d4ef09cf_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:224

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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