zloader | e3932ab83bc05de2e91d321c4d479ff1aa3d10fdbd91e1687c80cc0ec88270e8

General

Target

zloader 2_1.0.17.0.vir.dll
Size

111KB
MD5

e3564138588cba04c873bd054458f8b9
SHA1

157ec7421e1333b714d01a750b6d5d6517a92c45
SHA256

e3932ab83bc05de2e91d321c4d479ff1aa3d10fdbd91e1687c80cc0ec88270e8
SHA512

2a2e8ce45a928bcffdb40ebf6559c1f071bb3feccfd9cfe355e593acb559ecf84858cf4474708d311317ab08b3f981eba7c8b80dceae973839a0eec9049665c8

Score

10^/10

trojan botnet zloader persistence

Malware Config

Extracted

Family

zloader

Botnet

DLLobnova

Campaign

1017

C2

https://fdsjfjdsfjdsjfdjsfh.com/gate.php

https://fdsjfjdsfjdsdsjajjs.com/gate.php

https://idisaudhasdhasdj.com/gate.php

https://dsjdjsjdsadhasdas.com/gate.php

https://dsdjfhdsufudhjas.com/gate.php

https://dsdjfhdsufudhjas.info/gate.php

https://fdsjfjdsfjdsdsjajjs.info/gate.php

https://idisaudhasdhasdj.info/gate.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
Key created	\REGISTRY\USER\S-1-5-21-1231583446-2617009595-2137880041-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1231583446-2617009595-2137880041-1000\Software\Microsoft\Windows\CurrentVersion\Run\Odhoib = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Cuofy\\byhyfo.dll,DllRegisterServer"	msiexec.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 2536 wrote to memory of 2896	2536	rundll32.exe	rundll32.exe
PID 2536 wrote to memory of 2896	2536	rundll32.exe	rundll32.exe
PID 2536 wrote to memory of 2896	2536	rundll32.exe	rundll32.exe
PID 2896 wrote to memory of 2540	2896	rundll32.exe	msiexec.exe
PID 2896 wrote to memory of 2540	2896	rundll32.exe	msiexec.exe
PID 2896 wrote to memory of 2540	2896	rundll32.exe	msiexec.exe
PID 2896 wrote to memory of 2540	2896	rundll32.exe	msiexec.exe
PID 2896 wrote to memory of 2540	2896	rundll32.exe	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 2896 set thread context of 2540 2896 rundll32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 2540 msiexec.exe
Token: SeSecurityPrivilege 2540 msiexec.exe

description	pid	process	target process
PID 2896 set thread context of 2540	2896	rundll32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	2540	msiexec.exe
Token: SeSecurityPrivilege	2540	msiexec.exe

Blacklisted process makes network request 10 IoCs

Processes:

msiexec.exe

flow	pid	process
8	2540	msiexec.exe
9	2540	msiexec.exe
10	2540	msiexec.exe
11	2540	msiexec.exe
14	2540	msiexec.exe
19	2540	msiexec.exe
20	2540	msiexec.exe
21	2540	msiexec.exe
22	2540	msiexec.exe
23	2540	msiexec.exe

C:\Windows\system32\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\zloader 2_1.0.17.0.vir.dll",#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2536

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\zloader 2_1.0.17.0.vir.dll",#1
2⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
PID:2896

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Blacklisted process makes network request
PID:2540

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

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Downloads

memory/2540-1-0x0000000000870000-0x0000000000891000-memory.dmp

Filesize
132KB

Download
memory/2540-2-0x0000000000000000-mapping.dmp

Download
memory/2896-0-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads