zloader | af6af9c2d50e7c692521dac219b7f2f23c6b677216267dcbaf44bd44f7290d70

General

Target

af6af9c2d50e7c692521dac219b7f2f23c6b677216267dcbaf44bd44f7290d70.dll
Size

830KB
MD5

05df30ff372ff1d27ab4874b50565c8f
SHA1

e5e16ba4f24fd939e6ece581704ac6ca9df4b0d6
SHA256

af6af9c2d50e7c692521dac219b7f2f23c6b677216267dcbaf44bd44f7290d70
SHA512

ff152d5327fe7c3abeed6f74c3f5173de8bb228b6207036d9bc086eaeb164781118b6eb2fbae648ad06c59f862c902b8735099d63022dd661f6e5183631b97f8

Score

10^/10

zloader main 23.03.2020 botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

main

Campaign

23.03.2020

C2

https://hustlertest.com/sound.php

https://dandycodes.com/sound.php

https://sandyfotos.com/sound.php

Attributes

build_id
26

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
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ynfidea = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Onex\\evniypyh.dll,DllRegisterServer"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 788 set thread context of 1600 788 rundll32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 1600 msiexec.exe
Token: SeSecurityPrivilege 1600 msiexec.exe

description	pid	process	target process
PID 788 set thread context of 1600	788	rundll32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	1600	msiexec.exe
Token: SeSecurityPrivilege	1600	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 732 wrote to memory of 788	732	rundll32.exe	rundll32.exe
PID 732 wrote to memory of 788	732	rundll32.exe	rundll32.exe
PID 732 wrote to memory of 788	732	rundll32.exe	rundll32.exe
PID 732 wrote to memory of 788	732	rundll32.exe	rundll32.exe
PID 732 wrote to memory of 788	732	rundll32.exe	rundll32.exe
PID 732 wrote to memory of 788	732	rundll32.exe	rundll32.exe
PID 732 wrote to memory of 788	732	rundll32.exe	rundll32.exe
PID 788 wrote to memory of 1600	788	rundll32.exe	msiexec.exe
PID 788 wrote to memory of 1600	788	rundll32.exe	msiexec.exe
PID 788 wrote to memory of 1600	788	rundll32.exe	msiexec.exe
PID 788 wrote to memory of 1600	788	rundll32.exe	msiexec.exe
PID 788 wrote to memory of 1600	788	rundll32.exe	msiexec.exe
PID 788 wrote to memory of 1600	788	rundll32.exe	msiexec.exe
PID 788 wrote to memory of 1600	788	rundll32.exe	msiexec.exe
PID 788 wrote to memory of 1600	788	rundll32.exe	msiexec.exe
PID 788 wrote to memory of 1600	788	rundll32.exe	msiexec.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\af6af9c2d50e7c692521dac219b7f2f23c6b677216267dcbaf44bd44f7290d70.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:732

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\af6af9c2d50e7c692521dac219b7f2f23c6b677216267dcbaf44bd44f7290d70.dll,#1
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:788

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:1600

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/788-55-0x0000000076B81000-0x0000000076B83000-memory.dmp

Filesize
8KB

Download
memory/788-56-0x0000000000220000-0x000000000026C000-memory.dmp

Filesize
304KB

Download
memory/788-57-0x0000000010000000-0x00000000100D1000-memory.dmp

Filesize
836KB

Download
memory/1600-58-0x0000000000090000-0x00000000000C0000-memory.dmp

Filesize
192KB

Download
memory/1600-59-0x0000000000090000-0x00000000000C1000-memory.dmp

Filesize
196KB

Download
memory/1600-60-0x0000000000090000-0x00000000000C1000-memory.dmp

Filesize
196KB

Download
memory/1600-62-0x0000000000090000-0x00000000000C0000-memory.dmp

Filesize
192KB

Download

Analysis

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