zloader | 66d4f17726f5853e6127da6c02b6760f5cabbcf2793673d0db6b93517a537a78

General

Target

zte(1).dll
Size

473KB
MD5

d3b52650de0ec3f5705f92e313717c1b
SHA1

bf54d6be7f59dbaa0add9e4a0615736d99ceeca3
SHA256

66d4f17726f5853e6127da6c02b6760f5cabbcf2793673d0db6b93517a537a78
SHA512

6db7afc67356e477e303667436dd0792639d2153e3a94253e91a8b07e38e490b6b8142c45815dfed59171f0ac1553781028348acbbb3027c65616dfba20600b5

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\Abcoa = "regsvr32.exe /s C:\\Users\\Admin\\AppData\\Roaming\\Ymkoy\\uvehy.dll"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 2000 set thread context of 1212 2000 rundll32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 1212 msiexec.exe
Token: SeSecurityPrivilege 1212 msiexec.exe

description	pid	process	target process
PID 2000 set thread context of 1212	2000	rundll32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	1212	msiexec.exe
Token: SeSecurityPrivilege	1212	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1032 wrote to memory of 2000	1032	rundll32.exe	rundll32.exe
PID 1032 wrote to memory of 2000	1032	rundll32.exe	rundll32.exe
PID 1032 wrote to memory of 2000	1032	rundll32.exe	rundll32.exe
PID 1032 wrote to memory of 2000	1032	rundll32.exe	rundll32.exe
PID 1032 wrote to memory of 2000	1032	rundll32.exe	rundll32.exe
PID 1032 wrote to memory of 2000	1032	rundll32.exe	rundll32.exe
PID 1032 wrote to memory of 2000	1032	rundll32.exe	rundll32.exe
PID 2000 wrote to memory of 1212	2000	rundll32.exe	msiexec.exe
PID 2000 wrote to memory of 1212	2000	rundll32.exe	msiexec.exe
PID 2000 wrote to memory of 1212	2000	rundll32.exe	msiexec.exe
PID 2000 wrote to memory of 1212	2000	rundll32.exe	msiexec.exe
PID 2000 wrote to memory of 1212	2000	rundll32.exe	msiexec.exe
PID 2000 wrote to memory of 1212	2000	rundll32.exe	msiexec.exe
PID 2000 wrote to memory of 1212	2000	rundll32.exe	msiexec.exe
PID 2000 wrote to memory of 1212	2000	rundll32.exe	msiexec.exe
PID 2000 wrote to memory of 1212	2000	rundll32.exe	msiexec.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\zte(1).dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1032

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:2000

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:1212

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

Loading Replay Monitor...

Downloads

memory/1212-2-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/1212-1-0x0000000000090000-0x00000000000BB000-memory.dmp

Filesize
172KB

Download
memory/1212-3-0x0000000000090000-0x00000000000BB000-memory.dmp

Filesize
172KB

Download
memory/1212-4-0x0000000000000000-mapping.dmp

Download
memory/1700-5-0x000007FEF71F0000-0x000007FEF746A000-memory.dmp

Filesize
2.5MB

Download
memory/2000-0-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing