zloader | 8761a16b210e215456f4ad4dffeb624ee2b2b3646971860dc5ffb0f8b82658b0

Target

zte(1).dll
Size

473KB
MD5

2b99305fdd451f60f935efb4fd4fb9be
SHA1

d0c7f705d3d94ccea33654f940c7b2e77448fc3d
SHA256

8761a16b210e215456f4ad4dffeb624ee2b2b3646971860dc5ffb0f8b82658b0
SHA512

7fb8307f9a669fd1ba37a41d4f611d61124370b514fa290fd0d9ad1dcba8f2c0a37e3999ee507944f03d66ac3907ba56bf3fbaaef5409e5ae5e7746f6d7bca0f

Score

10^/10

zloader bot5 bot5 botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

bot5

Campaign

bot5

https://militanttra.at/owg.php

rc4.plain

rsa_pubkey.plain

Signatures

Zloader, Terdot, DELoader, ZeusSphinx
Zloader is a malware strain that was initially discovered back in August 2015.
trojan botnet zloader

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\Maemxi = "regsvr32.exe /s C:\\Users\\Admin\\AppData\\Roaming\\Lyty\\nyitmya.dll"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1396 set thread context of 2672	1396	rundll32.exe	79

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	2672	msiexec.exe
Token: SeSecurityPrivilege	2672	msiexec.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1304 wrote to memory of 1396	1304	rundll32.exe	68
PID 1304 wrote to memory of 1396	1304	rundll32.exe	68
PID 1304 wrote to memory of 1396	1304	rundll32.exe	68
PID 1396 wrote to memory of 2672	1396	rundll32.exe	79
PID 1396 wrote to memory of 2672	1396	rundll32.exe	79
PID 1396 wrote to memory of 2672	1396	rundll32.exe	79
PID 1396 wrote to memory of 2672	1396	rundll32.exe	79
PID 1396 wrote to memory of 2672	1396	rundll32.exe	79

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\zte(1).dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1304
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\zte(1).dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1396
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    PID:2672

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2672-1-0x0000000000A80000-0x0000000000AAB000-memory.dmp

Filesize
172KB

Download

Resubmissions

Analysis

Sharing

General