zloader | 1dda49ee9286f6c433dd46056c690d02d2e7dea1f96e01dbe148136891d01bbd

General

Target

zloader 2_1.1.18.0.vir.dll
Size

276KB
MD5

3f5e18655426b5ffc62d65048187dfdc
SHA1

b785e3e416fe5a64dd518cefc1df2e8bb39e534e
SHA256

1dda49ee9286f6c433dd46056c690d02d2e7dea1f96e01dbe148136891d01bbd
SHA512

37d23977d2a36e30088a41236937b60a8b1173b44571e71213c78e9df335abfc5bbcc9986b77f508ac5dd5f61f3e0433bbbe7e11496947fa5a7378a66eefcd95

Score

10^/10

trojan botnet zloader persistence

Malware Config

Extracted

Family

zloader

Botnet

10/03

Campaign

https://dhteijwrb.host/milagrecf.php

C2

https://aquolepp.pw/milagrecf.php

rc4.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

Processes:

msiexec.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\Icolni = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Vaubud\\qixu.dll,DllRegisterServer"	msiexec.exe
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 896 wrote to memory of 596	896	rundll32.exe	rundll32.exe
PID 896 wrote to memory of 596	896	rundll32.exe	rundll32.exe
PID 896 wrote to memory of 596	896	rundll32.exe	rundll32.exe
PID 896 wrote to memory of 596	896	rundll32.exe	rundll32.exe
PID 896 wrote to memory of 596	896	rundll32.exe	rundll32.exe
PID 896 wrote to memory of 596	896	rundll32.exe	rundll32.exe
PID 896 wrote to memory of 596	896	rundll32.exe	rundll32.exe
PID 596 wrote to memory of 1872	596	rundll32.exe	msiexec.exe
PID 596 wrote to memory of 1872	596	rundll32.exe	msiexec.exe
PID 596 wrote to memory of 1872	596	rundll32.exe	msiexec.exe
PID 596 wrote to memory of 1872	596	rundll32.exe	msiexec.exe
PID 596 wrote to memory of 1872	596	rundll32.exe	msiexec.exe
PID 596 wrote to memory of 1872	596	rundll32.exe	msiexec.exe
PID 596 wrote to memory of 1872	596	rundll32.exe	msiexec.exe
PID 596 wrote to memory of 1872	596	rundll32.exe	msiexec.exe
PID 596 wrote to memory of 1872	596	rundll32.exe	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 596 set thread context of 1872 596 rundll32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 1872 msiexec.exe
Token: SeSecurityPrivilege 1872 msiexec.exe

description	pid	process	target process
PID 596 set thread context of 1872	596	rundll32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	1872	msiexec.exe
Token: SeSecurityPrivilege	1872	msiexec.exe

C:\Windows\system32\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\zloader 2_1.1.18.0.vir.dll",#1
1⤵
- Suspicious use of WriteProcessMemory
PID:896

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\zloader 2_1.1.18.0.vir.dll",#1
2⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
PID:596

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:1872

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/596-0-0x0000000000000000-mapping.dmp

Download
memory/1872-1-0x00000000000D0000-0x0000000000100000-memory.dmp

Filesize
192KB

Download
memory/1872-2-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/1872-3-0x00000000000D0000-0x0000000000100000-memory.dmp

Filesize
192KB

Download
memory/1872-4-0x0000000000000000-mapping.dmp

Download

Analysis

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