75df84ce51fba958aabc1d460c40406083753dfe8a66d7b4b8fb4c65675db1ad

Analysis

max time kernel
150s
max time network
153s
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, 21:16

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General

Target

435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Size

121KB
MD5

435e570880d6aca6d294205fc08e7695
SHA1

a985ba7f09de7371f6c151194ced63807b13b6e3
SHA256

75df84ce51fba958aabc1d460c40406083753dfe8a66d7b4b8fb4c65675db1ad
SHA512

86d684d6eb73a1a2aa8540f47c7f682b01d1f289ba54d2f9ab62c04061177202617befde62848db37cd90eac2d837f69345a84292d34838e331c5b8c4d74a293
SSDEEP

3072:1KQXtg/sDHmJ945Q41S/HdrJckuzIsJjs0Oh8bFgG1jP:1NpuESfdr+ssV0OpjP

Score

7^/10

adware stealer

Malware Config

Signatures

Loads dropped DLL 5 IoCs

pid	Process
2600	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
2600	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
2600	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
2600	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
824	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\{296AB8C6-FB22-4D17-8834-064E2BA0A6F0}	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe

Drops file in Windows directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Intel\baiduc.dll	regsvr32.exe
File opened for modification	C:\Windows\Intel\baiduc.dll	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
File created	C:\Windows\Intel\baiduc.dll	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
File opened for modification	C:\Windows\system.ini	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
File opened for modification	C:\Windows\system.ini	regsvr32.exe

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

System Information Discovery
T1082

Modifies registry class 41 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\0\win32\ = "C:\\Windows\\Intel\\baiduc.dll"	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\HELPDIR	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\ = "{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}"	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB8C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB8C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB8C6-FB22-4D17-8834-064E2BA0A6F0}	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB8C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32\ = "C:\\Windows\\Intel\\baiduc.dll"	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\ = "Pbtoo2s 1.0 Type Library"	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\HELPDIR\ = "C:\\Windows\\Intel"	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ = "IIEHelperObj2"	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB8C6-FB22-4D17-8834-064E2BA0A6F0}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\FLAGS\ = "0"	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\Version = "1.0"	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ProxyStubClsid32	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB8C6-FB22-4D17-8834-064E2BA0A6F0}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB8C6-FB22-4D17-8834-064E2BA0A6F0}\ = "Info cache"	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB8C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32\ThreadingModel = "Apartment"	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\0	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\0\win32	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ProxyStubClsid32	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\ = "{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}"	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB8C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32\ = "C:\\Windows\\Intel\\baiduc.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB8C6-FB22-4D17-8834-064E2BA0A6F0}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ = "IIEHelperObj2"	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\Version = "1.0"	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB8C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB8C6-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\ = "{285AB8C5-FB22-4D17-8834-064E2BA0A6F0}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB8C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB8C6-FB22-4D17-8834-064E2BA0A6F0}\TypeLib	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB8C6-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\ = "{285AB8C5-FB22-4D17-8834-064E2BA0A6F0}"	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\FLAGS	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB8C6-FB22-4D17-8834-064E2BA0A6F0}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB8C6-FB22-4D17-8834-064E2BA0A6F0}\ = "Info cache"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2600 wrote to memory of 824	2600	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe	85
PID 2600 wrote to memory of 824	2600	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe	85
PID 2600 wrote to memory of 824	2600	435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\435e570880d6aca6d294205fc08e7695_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2600
- C:\Windows\SysWOW64\regsvr32.exe
  "regsvr32.exe" "C:\Windows\Intel\baiduc.dll" /s
  2⤵
  - Loads dropped DLL
  - Drops file in Windows directory
  - Modifies registry class
  PID:824

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsrBE7F.tmp\System.dll

Filesize
10KB

MD5
bf01b2d04e8fad306ba2f364cfc4edfa

SHA1
58f42b45ca9fc1818c4498ecd8bac088d20f2b18

SHA256
d3f9c99e0c1c9acd81a1b33bc3dbd305140def90d10485c253cf1d455f0dc903

SHA512
30ca1663d659c5efac7fed3d1aaba81c47d5d5fda77f30f021124c882b858732e17f917bfd0aa3ee7b269fad86e75b1b9388d8f916e7a4e2c9961669f2c772e7

Download Submit
C:\Windows\Intel\baiduc.dll

Filesize
156KB

MD5
42748366d1edb36ffc9156932e52cf13

SHA1
1c2862acc20bb1d530340ae4c26d7b6337f5c07c

SHA256
06d3bd3d155d93792a41eaf999bf2d45b9de1cb093622dafbfc7b634d8105244

SHA512
ac7fdaa8bfa348ed62cce11109d3ad0d9a77494be5ad8202df98f0881c9ebe5bccd904839527b635e583b038440cff25a179abfbf741bdf4980de58c76d5f8c0

Download Submit
C:\Windows\system.ini

Filesize
247B

MD5
54d86797f5bb50e10fb6e3c6f2cd9432

SHA1
4ba0c23e177830332276c53f8460151a5b8248ef

SHA256
f898742bb7083056a6cc110503856690881e57530845c0d6af5bfba9ae8dfbbd

SHA512
fed3356ca6e2be4702a08c1fb2dde2d1ccd681b1bed4deeb4c06fbb032e9233e2c1774efb3868bc71c40d3a023f02f7b69240058e96ceeece325b42ed02c8fb5

Download Submit
memory/2600-13-0x0000000004810000-0x0000000004839000-memory.dmp

Filesize
164KB

Download