142e18ff10fd279499f5c10f94175746e1eec5ef82b7dfbfde2b51a3c9e07a66

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31/10/2024, 11:44 UTC

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General

Target

ChangerSteamByOstrogV2/ChangerSteamByOstrog.dll
Size

43KB
MD5

8be7868e56b934d338b24ed3a1f92e54
SHA1

a293f447d18b3c9d87b17619c737d05039e3a950
SHA256

c7308b8aa5092c67de5bd8a59fd0892b9ba02a5420f979a51e8347943ae7bd72
SHA512

e9705dcccf894f48a656588d2ed8f04db9db0438d6835f360d78ab1a8d4ab8d1c34335266f07d6823c13f4b9191a72bd006acd7fe752542412c15fa6075b9b19
SSDEEP

768:wYrwv9rqwFUtGA0nHcwERRWuTOhiLPYYQEKdjIm5EL8koTPrboe4nbcuyD7U:wYrwvBqwi8A0nH9s5OkLPYYemm5EgkG4

Score

5^/10

discovery upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral3/memory/2072-3-0x0000000000130000-0x0000000000159000-memory.dmp	upx
behavioral3/memory/2072-4-0x0000000000130000-0x0000000000159000-memory.dmp	upx

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	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 2072	2124	rundll32.exe	30
PID 2124 wrote to memory of 2072	2124	rundll32.exe	30
PID 2124 wrote to memory of 2072	2124	rundll32.exe	30
PID 2124 wrote to memory of 2072	2124	rundll32.exe	30
PID 2124 wrote to memory of 2072	2124	rundll32.exe	30
PID 2124 wrote to memory of 2072	2124	rundll32.exe	30
PID 2124 wrote to memory of 2072	2124	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ChangerSteamByOstrogV2\ChangerSteamByOstrog.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ChangerSteamByOstrogV2\ChangerSteamByOstrog.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2072

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

Replay Monitor

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Downloads

memory/2072-0-0x0000000000120000-0x0000000000149000-memory.dmp

Filesize
164KB

Download
memory/2072-3-0x0000000000130000-0x0000000000159000-memory.dmp

Filesize
164KB

Download
memory/2072-2-0x0000000000120000-0x0000000000149000-memory.dmp

Filesize
164KB

Download
memory/2072-1-0x0000000000120000-0x0000000000149000-memory.dmp

Filesize
164KB

Download
memory/2072-4-0x0000000000130000-0x0000000000159000-memory.dmp

Filesize
164KB

Download