zloader | d94b57307f3b68e57f1cf34e4aaa0794a6d0b4c551d05f6d1a2f0d3b45625177

General

Target

SecuriteInfo.com.Variant.Johnnie.253352.23036.17576.dll
Size

536KB
MD5

2fac38dc801716d730a94667f1e46338
SHA1

2a7d8e1b1f3a4bd51da44191edc1932361272182
SHA256

d94b57307f3b68e57f1cf34e4aaa0794a6d0b4c551d05f6d1a2f0d3b45625177
SHA512

5c718fc7c86563e7b931d60fb1be52f3d3db75de6a978268a450e5025473d4ab23f9d800931eed1992b43cfce1b825739daf46b6ff2c7f425a285ff5efa17190

Score

10^/10

zloader bot5 bot5 botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

bot5

Campaign

bot5

C2

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

Processes:

msiexec.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ipnuria = "regsvr32.exe /s C:\\Users\\Admin\\AppData\\Roaming\\Xoil\\olexwaqo.dll"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 1544 set thread context of 1236 1544 rundll32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 1236 msiexec.exe
Token: SeSecurityPrivilege 1236 msiexec.exe

description	pid	process	target process
PID 1544 set thread context of 1236	1544	rundll32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	1236	msiexec.exe
Token: SeSecurityPrivilege	1236	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 844 wrote to memory of 1544	844	rundll32.exe	rundll32.exe
PID 844 wrote to memory of 1544	844	rundll32.exe	rundll32.exe
PID 844 wrote to memory of 1544	844	rundll32.exe	rundll32.exe
PID 844 wrote to memory of 1544	844	rundll32.exe	rundll32.exe
PID 844 wrote to memory of 1544	844	rundll32.exe	rundll32.exe
PID 844 wrote to memory of 1544	844	rundll32.exe	rundll32.exe
PID 844 wrote to memory of 1544	844	rundll32.exe	rundll32.exe
PID 1544 wrote to memory of 1236	1544	rundll32.exe	msiexec.exe
PID 1544 wrote to memory of 1236	1544	rundll32.exe	msiexec.exe
PID 1544 wrote to memory of 1236	1544	rundll32.exe	msiexec.exe
PID 1544 wrote to memory of 1236	1544	rundll32.exe	msiexec.exe
PID 1544 wrote to memory of 1236	1544	rundll32.exe	msiexec.exe
PID 1544 wrote to memory of 1236	1544	rundll32.exe	msiexec.exe
PID 1544 wrote to memory of 1236	1544	rundll32.exe	msiexec.exe
PID 1544 wrote to memory of 1236	1544	rundll32.exe	msiexec.exe
PID 1544 wrote to memory of 1236	1544	rundll32.exe	msiexec.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Johnnie.253352.23036.17576.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:844

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Johnnie.253352.23036.17576.dll,#1
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1544

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:1236

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/1236-1-0x0000000000090000-0x00000000000BB000-memory.dmp

Filesize
172KB

Download
memory/1236-2-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/1236-3-0x0000000000090000-0x00000000000BB000-memory.dmp

Filesize
172KB

Download
memory/1236-4-0x0000000000000000-mapping.dmp

Download
memory/1452-5-0x000007FEF81B0000-0x000007FEF842A000-memory.dmp

Filesize
2.5MB

Download
memory/1544-0-0x0000000000000000-mapping.dmp

Download

Analysis

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