zloader | 8d5a770975e52ce1048534372207336f6cc657b43887daa49994e63e8d7f6ce1

Resubmissions

17-11-2023 12:48

231117-p1y4naad9s 10

05-02-2022 13:02

220205-qaa5ksbef5 10

Analysis

max time kernel
142s
max time network
153s
platform
windows7_x64
resource
win7-en-20211208
submitted
05-02-2022 13:02

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General

Target

8d5a770975e52ce1048534372207336f6cc657b43887daa49994e63e8d7f6ce1.dll
Size

856KB
MD5

306212efebc6ac92000687393e56a5cb
SHA1

dc0b678e9ad7cadd5de907bf80fa351d5d3347cc
SHA256

8d5a770975e52ce1048534372207336f6cc657b43887daa49994e63e8d7f6ce1
SHA512

1d40714f657f4f1820da817fcc9f6dd98d2c0dec2e5e7c71fa51c1066be30bd36de967d706f021e8032bce787bc881469261cbd0224a362d93a271c0ee6381ee

Score

10^/10

zloader main 05.04.2020 botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

main

Campaign

05.04.2020

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

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\Tuokpe = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Qaoxc\\ziuldyk.dll,DllRegisterServer"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 808 set thread context of 740	808	rundll32.exe	28

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	740	msiexec.exe
Token: SeSecurityPrivilege	740	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1476 wrote to memory of 808	1476	rundll32.exe	27
PID 1476 wrote to memory of 808	1476	rundll32.exe	27
PID 1476 wrote to memory of 808	1476	rundll32.exe	27
PID 1476 wrote to memory of 808	1476	rundll32.exe	27
PID 1476 wrote to memory of 808	1476	rundll32.exe	27
PID 1476 wrote to memory of 808	1476	rundll32.exe	27
PID 1476 wrote to memory of 808	1476	rundll32.exe	27
PID 808 wrote to memory of 740	808	rundll32.exe	28
PID 808 wrote to memory of 740	808	rundll32.exe	28
PID 808 wrote to memory of 740	808	rundll32.exe	28
PID 808 wrote to memory of 740	808	rundll32.exe	28
PID 808 wrote to memory of 740	808	rundll32.exe	28
PID 808 wrote to memory of 740	808	rundll32.exe	28
PID 808 wrote to memory of 740	808	rundll32.exe	28
PID 808 wrote to memory of 740	808	rundll32.exe	28
PID 808 wrote to memory of 740	808	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8d5a770975e52ce1048534372207336f6cc657b43887daa49994e63e8d7f6ce1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1476
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8d5a770975e52ce1048534372207336f6cc657b43887daa49994e63e8d7f6ce1.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:808
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    PID:740

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/740-58-0x0000000000090000-0x00000000000C0000-memory.dmp

Filesize
192KB

Download
memory/740-59-0x0000000000090000-0x00000000000C1000-memory.dmp

Filesize
196KB

Download
memory/740-60-0x0000000000090000-0x00000000000C1000-memory.dmp

Filesize
196KB

Download
memory/740-62-0x0000000000090000-0x00000000000C0000-memory.dmp

Filesize
192KB

Download
memory/808-55-0x0000000074EC1000-0x0000000074EC3000-memory.dmp

Filesize
8KB

Download
memory/808-56-0x0000000000730000-0x0000000000775000-memory.dmp

Filesize
276KB

Download
memory/808-57-0x0000000010000000-0x00000000100DB000-memory.dmp

Filesize
876KB

Download