ca8a93c5292a120e78fdc681b00714554904a574eeb4bceff9f9f2ea8e6e8d0b

Analysis

max time kernel
146s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2023, 13:24

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General

Target

7238919053a402f5be4531891041417c.exe
Size

121KB
MD5

7238919053a402f5be4531891041417c
SHA1

09c38e204df82ed2b2a75ff3c479c49ec3af6ea9
SHA256

ca8a93c5292a120e78fdc681b00714554904a574eeb4bceff9f9f2ea8e6e8d0b
SHA512

1bb6c34bd0cf7d22eee54f60fad49e1f5ac880769f1a98309b840b2eec91a0aff09d34bcad6c6d6c93ffb9baba6d247093f5f625920a8b9c84e1f555ba938ecc
SSDEEP

3072:1KQXtg/sDHmJ945yBjDJT8TREntp0U2BupCv/bX//FObti:1NpujT8dYH0UIuc3h4Y

Score

7^/10

adware stealer

Malware Config

Signatures

Loads dropped DLL 5 IoCs

pid	Process
2536	7238919053a402f5be4531891041417c.exe
2536	7238919053a402f5be4531891041417c.exe
2536	7238919053a402f5be4531891041417c.exe
2536	7238919053a402f5be4531891041417c.exe
4884	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\{296AB1C6-FB22-4D17-8834-064E2BA0A6F0}	7238919053a402f5be4531891041417c.exe

Drops file in Windows directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system.ini	regsvr32.exe
File opened for modification	C:\Windows\AMD\google.dll	regsvr32.exe
File opened for modification	C:\Windows\AMD\google.dll	7238919053a402f5be4531891041417c.exe
File created	C:\Windows\AMD\google.dll	7238919053a402f5be4531891041417c.exe
File opened for modification	C:\Windows\system.ini	7238919053a402f5be4531891041417c.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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32	7238919053a402f5be4531891041417c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1C6-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\ = "{285AB8C5-FB22-4D17-8834-064E2BA0A6F0}"	7238919053a402f5be4531891041417c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\FLAGS	7238919053a402f5be4531891041417c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\FLAGS\ = "0"	7238919053a402f5be4531891041417c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\0\win32\ = "C:\\Windows\\AMD\\google.dll"	7238919053a402f5be4531891041417c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	7238919053a402f5be4531891041417c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\ = "{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}"	7238919053a402f5be4531891041417c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}	7238919053a402f5be4531891041417c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32\ = "C:\\Windows\\AMD\\google.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1C6-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\ = "{285AB8C5-FB22-4D17-8834-064E2BA0A6F0}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1C6-FB22-4D17-8834-064E2BA0A6F0}\TypeLib	7238919053a402f5be4531891041417c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ProxyStubClsid32	7238919053a402f5be4531891041417c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	7238919053a402f5be4531891041417c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\ = "{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}"	7238919053a402f5be4531891041417c.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1C6-FB22-4D17-8834-064E2BA0A6F0}\ = "Info cache"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1C6-FB22-4D17-8834-064E2BA0A6F0}\ = "Info cache"	7238919053a402f5be4531891041417c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib	7238919053a402f5be4531891041417c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\Version = "1.0"	7238919053a402f5be4531891041417c.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1C6-FB22-4D17-8834-064E2BA0A6F0}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\ = "Pbtoo2s 1.0 Type Library"	7238919053a402f5be4531891041417c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ = "IIEHelperObj2"	7238919053a402f5be4531891041417c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32\ThreadingModel = "Apartment"	7238919053a402f5be4531891041417c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0	7238919053a402f5be4531891041417c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\0	7238919053a402f5be4531891041417c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}	7238919053a402f5be4531891041417c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\Version = "1.0"	7238919053a402f5be4531891041417c.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1C6-FB22-4D17-8834-064E2BA0A6F0}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32\ = "C:\\Windows\\AMD\\google.dll"	7238919053a402f5be4531891041417c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}	7238919053a402f5be4531891041417c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\0\win32	7238919053a402f5be4531891041417c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1C6-FB22-4D17-8834-064E2BA0A6F0}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\HELPDIR\ = "C:\\Windows\\AMD"	7238919053a402f5be4531891041417c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ = "IIEHelperObj2"	7238919053a402f5be4531891041417c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ProxyStubClsid32	7238919053a402f5be4531891041417c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1C6-FB22-4D17-8834-064E2BA0A6F0}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1C6-FB22-4D17-8834-064E2BA0A6F0}	7238919053a402f5be4531891041417c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\HELPDIR	7238919053a402f5be4531891041417c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib	7238919053a402f5be4531891041417c.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 4884	2536	7238919053a402f5be4531891041417c.exe	90
PID 2536 wrote to memory of 4884	2536	7238919053a402f5be4531891041417c.exe	90
PID 2536 wrote to memory of 4884	2536	7238919053a402f5be4531891041417c.exe	90

C:\Users\Admin\AppData\Local\Temp\7238919053a402f5be4531891041417c.exe
"C:\Users\Admin\AppData\Local\Temp\7238919053a402f5be4531891041417c.exe"
1⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Windows\SysWOW64\regsvr32.exe
  "regsvr32.exe" "C:\Windows\AMD\google.dll" /s
  2⤵
  - Loads dropped DLL
  - Drops file in Windows directory
  - Modifies registry class
  PID:4884

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\nsx7F73.tmp\System.dll

Filesize
10KB

MD5
bf01b2d04e8fad306ba2f364cfc4edfa

SHA1
58f42b45ca9fc1818c4498ecd8bac088d20f2b18

SHA256
d3f9c99e0c1c9acd81a1b33bc3dbd305140def90d10485c253cf1d455f0dc903

SHA512
30ca1663d659c5efac7fed3d1aaba81c47d5d5fda77f30f021124c882b858732e17f917bfd0aa3ee7b269fad86e75b1b9388d8f916e7a4e2c9961669f2c772e7

Download Submit
C:\Windows\AMD\google.dll

Filesize
156KB

MD5
167a3de239998ea3de7cc8021da62cd8

SHA1
39e15fcafeb14a193df175ac28af9ce09664c4aa

SHA256
6a8de3ea76e3ca2e1d88d7c8544535454968f618d30a47a939d56c414fdec4d9

SHA512
dfdc7a5e3e9320164fcc4fe9936ee81cab5efc88ecf2fc686dd52d8d03394f90e7edd3491018b98b24f88bf1bb34490e22fc7e649a68ea0fcfc2bfb04627c104

Download Submit
C:\Windows\AMD\google.dll

Filesize
92KB

MD5
713f7c09c9e6ba3649ed3bce5d72b716

SHA1
a5b852c136ba5624fffa4fcfaac43f1ac3aa512a

SHA256
13ed17c09fa56fe5af1762e0c387790a09543ac461fe2c01d39da2efbfa7674f

SHA512
34d2744f2d175bdf0abc61fbe172105a610ea7c5d039e6b3f5af5792d0adf38213f797fadcc9dbf225782598466c37f21bf98e4478cbc42c552c7d514e101bb0

Download Submit
memory/2536-13-0x00000000024F0000-0x0000000002519000-memory.dmp

Filesize
164KB

Download