f87fc3458d3c60ce33788f11a04315f7c469b3dd0bcc26e76da52bec1f89cb6b

Resubmissions

29/08/2024, 03:04

240829-dktcpasell 3

29/08/2024, 02:43

240829-c7sh8s1hmm 1

Analysis

max time kernel
255s
max time network
203s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29/08/2024, 03:04

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General

Target

RGGV.txt
Size

644KB
MD5

0d31055db83286b5e0aafc69609502ac
SHA1

63c50a5e0126329ce24f064af90f9ffb90394013
SHA256

f87fc3458d3c60ce33788f11a04315f7c469b3dd0bcc26e76da52bec1f89cb6b
SHA512

f547d0924f899ac28d71763f34cff7f8fc13697548bbdae6e3b5893b537e63a8fab90032b245ad60781310dcea222f3a6c5a1ebb8c0e84f5ce94722899f8b8ce
SSDEEP

12288:dkOTDFNXjOsggjpM3IzJquTTYuDu6pELjN/nwVNNi:d/VNlVjpRJ7TTYuDfcjN/wD4

Score

3^/10

discovery

Malware Config

Signatures

System Location Discovery: System Language Discovery 1 TTPs 3 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	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
3092	NOTEPAD.EXE

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3600 wrote to memory of 4544	3600	cmd.exe	121
PID 3600 wrote to memory of 4544	3600	cmd.exe	121
PID 3600 wrote to memory of 4544	3600	cmd.exe	121
PID 3600 wrote to memory of 1816	3600	cmd.exe	122
PID 3600 wrote to memory of 1816	3600	cmd.exe	122
PID 3600 wrote to memory of 1816	3600	cmd.exe	122
PID 3600 wrote to memory of 3924	3600	cmd.exe	123
PID 3600 wrote to memory of 3924	3600	cmd.exe	123
PID 3600 wrote to memory of 3924	3600	cmd.exe	123

C:\Windows\system32\NOTEPAD.EXE
C:\Windows\system32\NOTEPAD.EXE C:\Users\Admin\AppData\Local\Temp\RGGV.txt
1⤵
- Opens file in notepad (likely ransom note)
PID:3092

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3600
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  regasm
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4544
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  regasm /stext C:\Users\Admin\AppData\Local\Temp\RGGV.txt
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1816
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  regasm C:\Users\Admin\AppData\Local\Temp\RGGV.txt
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3924

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RegAsm.exe.log

Filesize
42B

MD5
84cfdb4b995b1dbf543b26b86c863adc

SHA1
d2f47764908bf30036cf8248b9ff5541e2711fa2

SHA256
d8988d672d6915b46946b28c06ad8066c50041f6152a91d37ffa5cf129cc146b

SHA512
485f0ed45e13f00a93762cbf15b4b8f996553baa021152fae5aba051e3736bcd3ca8f4328f0e6d9e3e1f910c96c4a9ae055331123ee08e3c2ce3a99ac2e177ce

Download Submit
memory/4544-0-0x00000000743CE000-0x00000000743CF000-memory.dmp

Filesize
4KB

Download
memory/4544-1-0x0000000000DC0000-0x0000000000DD2000-memory.dmp

Filesize
72KB

Download