zloader | d3255ed380e290f4992701d1c10a3f65580b5e0aff384ab4308a8202d71f38a8

General

Target

d3255ed380e290f4992701d1c10a3f65580b5e0aff384ab4308a8202d71f38a8.dll
Size

275KB
MD5

39cb3387dedf5568efeb8ae071e9006e
SHA1

9e9005fe8e8817c87e8f55bb5ba41f12ec7724b0
SHA256

d3255ed380e290f4992701d1c10a3f65580b5e0aff384ab4308a8202d71f38a8
SHA512

ef496ca7b6aaa85df502a6eccc7fa1758b9bcc14ec194b451660444b4d8e23c3e67353432a3d653bf3936f0cf18df2abe239e7b4e5adb6eb8260aea07c1ca299

Score

10^/10

zloader dllobnova cookiesfix botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

DLLobnova

Campaign

cookiesfix

C2

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

https://dsdjfhdsufudhjas.pro/gate.php

https://dsdjfhd9ddksaas.pro/gate.php

Attributes

build_id
25

rc4.plain

Signatures

Zloader, Terdot, DELoader, ZeusSphinx
Zloader is a malware strain that was initially discovered back in August 2015.
trojan botnet zloader

Blocklisted process makes network request 8 IoCs

flow	pid	Process
5	1696	msiexec.exe
7	1696	msiexec.exe
9	1696	msiexec.exe
11	1696	msiexec.exe
13	1696	msiexec.exe
15	1696	msiexec.exe
17	1696	msiexec.exe
19	1696	msiexec.exe

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\Idewedi = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Seiv\\idadvea.dll,DllRegisterServer"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1656 set thread context of 1696	1656	rundll32.exe	28

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	1696	msiexec.exe
Token: SeSecurityPrivilege	1696	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1636 wrote to memory of 1656	1636	rundll32.exe	27
PID 1636 wrote to memory of 1656	1636	rundll32.exe	27
PID 1636 wrote to memory of 1656	1636	rundll32.exe	27
PID 1636 wrote to memory of 1656	1636	rundll32.exe	27
PID 1636 wrote to memory of 1656	1636	rundll32.exe	27
PID 1636 wrote to memory of 1656	1636	rundll32.exe	27
PID 1636 wrote to memory of 1656	1636	rundll32.exe	27
PID 1656 wrote to memory of 1696	1656	rundll32.exe	28
PID 1656 wrote to memory of 1696	1656	rundll32.exe	28
PID 1656 wrote to memory of 1696	1656	rundll32.exe	28
PID 1656 wrote to memory of 1696	1656	rundll32.exe	28
PID 1656 wrote to memory of 1696	1656	rundll32.exe	28
PID 1656 wrote to memory of 1696	1656	rundll32.exe	28
PID 1656 wrote to memory of 1696	1656	rundll32.exe	28
PID 1656 wrote to memory of 1696	1656	rundll32.exe	28
PID 1656 wrote to memory of 1696	1656	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d3255ed380e290f4992701d1c10a3f65580b5e0aff384ab4308a8202d71f38a8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1636
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\d3255ed380e290f4992701d1c10a3f65580b5e0aff384ab4308a8202d71f38a8.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1656
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - Blocklisted process makes network request
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    PID:1696

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1656-54-0x0000000075801000-0x0000000075803000-memory.dmp

Filesize
8KB

Download
memory/1656-58-0x0000000000280000-0x00000000002C7000-memory.dmp

Filesize
284KB

Download
memory/1696-56-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/1696-55-0x00000000000D0000-0x0000000000103000-memory.dmp

Filesize
204KB

Download
memory/1696-57-0x00000000000D0000-0x0000000000103000-memory.dmp

Filesize
204KB

Download
memory/1696-60-0x00000000000D0000-0x0000000000103000-memory.dmp

Filesize
204KB

Download

Analysis

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