zloader | e5b440a826d14744df920514f027f0871f84292d83b95b731eadfe3165117448

General

Target

e5b440a826d14744df920514f027f0871f84292d83b95b731eadfe3165117448.dll
Size

873KB
MD5

4999aaea3e94b8cebf6f7c85c0e70f87
SHA1

89198a1da32b1aedf70e9a113269b25c0abada82
SHA256

e5b440a826d14744df920514f027f0871f84292d83b95b731eadfe3165117448
SHA512

2cbf48afd27075f2650f78b1f1414f27b0561590e4f142745f7ab326ca29edf22f9b53f1fe127ff9500285a9752ccc9579de525532f417cf3c638a3b5368eec4

Score

10^/10

zloader main 05.04.2020 botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

main

Campaign

05.04.2020

C2

https://knalc.com/sound.php

https://namilh.com/sound.php

https://ronswank.com/sound.php

https://stagolk.com/sound.php

https://mioniough.com/sound.php

https://ergensu.com/sound.php

Attributes

build_id
33

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\Feuqnov = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Aqguud\\erta.dll,DllRegisterServer"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 1544 set thread context of 1320 1544 rundll32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 1320 msiexec.exe
Token: SeSecurityPrivilege 1320 msiexec.exe

description	pid	process	target process
PID 1544 set thread context of 1320	1544	rundll32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	1320	msiexec.exe
Token: SeSecurityPrivilege	1320	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1440 wrote to memory of 1544	1440	rundll32.exe	rundll32.exe
PID 1440 wrote to memory of 1544	1440	rundll32.exe	rundll32.exe
PID 1440 wrote to memory of 1544	1440	rundll32.exe	rundll32.exe
PID 1440 wrote to memory of 1544	1440	rundll32.exe	rundll32.exe
PID 1440 wrote to memory of 1544	1440	rundll32.exe	rundll32.exe
PID 1440 wrote to memory of 1544	1440	rundll32.exe	rundll32.exe
PID 1440 wrote to memory of 1544	1440	rundll32.exe	rundll32.exe
PID 1544 wrote to memory of 1320	1544	rundll32.exe	msiexec.exe
PID 1544 wrote to memory of 1320	1544	rundll32.exe	msiexec.exe
PID 1544 wrote to memory of 1320	1544	rundll32.exe	msiexec.exe
PID 1544 wrote to memory of 1320	1544	rundll32.exe	msiexec.exe
PID 1544 wrote to memory of 1320	1544	rundll32.exe	msiexec.exe
PID 1544 wrote to memory of 1320	1544	rundll32.exe	msiexec.exe
PID 1544 wrote to memory of 1320	1544	rundll32.exe	msiexec.exe
PID 1544 wrote to memory of 1320	1544	rundll32.exe	msiexec.exe
PID 1544 wrote to memory of 1320	1544	rundll32.exe	msiexec.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e5b440a826d14744df920514f027f0871f84292d83b95b731eadfe3165117448.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1440

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e5b440a826d14744df920514f027f0871f84292d83b95b731eadfe3165117448.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:1320

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/1320-59-0x0000000000090000-0x00000000000C1000-memory.dmp

Filesize
196KB

Download
memory/1320-58-0x0000000000090000-0x00000000000C0000-memory.dmp

Filesize
192KB

Download
memory/1320-60-0x0000000000090000-0x00000000000C1000-memory.dmp

Filesize
196KB

Download
memory/1320-62-0x0000000000090000-0x00000000000C0000-memory.dmp

Filesize
192KB

Download
memory/1544-55-0x0000000075831000-0x0000000075833000-memory.dmp

Filesize
8KB

Download
memory/1544-56-0x0000000000270000-0x00000000002C8000-memory.dmp

Filesize
352KB

Download
memory/1544-57-0x0000000010000000-0x00000000100E2000-memory.dmp

Filesize
904KB

Download

Analysis

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