3d62c9ee50dac92527dafbfd8f05652d943a4f56e96e7bd3bc9c5807e4ee60d6

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04/02/2025, 20:51

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General

Target

3d62c9ee50dac92527dafbfd8f05652d943a4f56e96e7bd3bc9c5807e4ee60d6.dll
Size

52KB
MD5

e288761c98ec1f61751e0fc5170491cb
SHA1

130a9d1590dd114c36ee418a9897d2f3e7f07566
SHA256

3d62c9ee50dac92527dafbfd8f05652d943a4f56e96e7bd3bc9c5807e4ee60d6
SHA512

e236ea8d589964b54457b173f416f96abd35a6c7cba9006eb30e97a631ac89c57493107cc928239af3c3a69a4b532fa902bdb0900d502eb100d64f8e3077a1c7
SSDEEP

1536:iQsn/NsHjwUguu4yFqzff5u1BJIP5niy5zC:zs8UTubEBq5zC

Score

4^/10

discovery

Malware Config

Signatures

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\??R8ÒRÈY£	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 9 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\KOF÷2Š{øÿ”q1$ð z(y}€\¯p:qpÏÖP×Ó¬ZçW)`Mö!ë9ÆùºZ æuEWñ*êIâÊ£G ún	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\<<Q;Ñ#›6	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\33^4Þp\ = "R;ltî\x14×\x15bÅã”\x16"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\KOF÷2Š{øÿ”q1$ð z(y}€	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\KOF÷2Š{øÿ”q1$ð z(y}€\¯p:qpÏÖP×Ó¬ZçW)`Mö!ë9ÆùºZ æuEWñ*êIâÊ£G ún\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\3d62c9ee50dac92527dafbfd8f05652d943a4f56e96e7bd3bc9c5807e4ee60d6.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\<<Q;Ñ#›6\ = ":k\x7fC†\r\u009du^-fqÊ\x10Ë\x06BÇòœf:P"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\33^4Þp	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\33^4Þp\UEIÆÝuD!xgÐÏ Ùñ„#zŸ{0cR-mxÆýBÆåžpH = "D!xgÐ\x01Ï\n\x05Ùñ„#\x7fzŸ{0c\x10R-mxÆ\x01ý\x1aBÆåžpH"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\33^4Þp\ = "r?qiÙ\vÅBJÔôÁ'fwšL"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 2936	2192	regsvr32.exe	31
PID 2192 wrote to memory of 2936	2192	regsvr32.exe	31
PID 2192 wrote to memory of 2936	2192	regsvr32.exe	31
PID 2192 wrote to memory of 2936	2192	regsvr32.exe	31
PID 2192 wrote to memory of 2936	2192	regsvr32.exe	31
PID 2192 wrote to memory of 2936	2192	regsvr32.exe	31
PID 2192 wrote to memory of 2936	2192	regsvr32.exe	31

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\3d62c9ee50dac92527dafbfd8f05652d943a4f56e96e7bd3bc9c5807e4ee60d6.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2192
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\3d62c9ee50dac92527dafbfd8f05652d943a4f56e96e7bd3bc9c5807e4ee60d6.dll
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2936

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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