zloader | b37533b42dd24cc7efb7b1c4c71a70dac1a70623026e6c49dc50857b9e1f585c

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
20-03-2024 10:24

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General

Target

Device/HarddiskVolume7/imaginaryC2-master/examples/use-case-9-zloader/zloader-imaginary-c2/server_da.dll
Size

838KB
MD5

57138593c18492f813e426719ebed2e8
SHA1

7d44bd7d83dace54b68f93ef16b7a70173dc9ccf
SHA256

d0226de456f5fb75ae7588d57bb9368848aa01afae86893d6da2b95098080c97
SHA512

57097f8dea1681713ebe983f2e1829ea21536c1bb867865b65ce8497fca67ca89ae148f0a77bdd9c5622b60b29344a83bfea9b09cbf388336c764840b5e32daa
SSDEEP

6144:oxG3wZYnmy+9Mw6PeJ/Oubatb6pf4Pbjmr9UnbNzLLxsw:NwZYn72hSS9gbNzLLOw

Score

10^/10

zloader main 26.04.2020 botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

main

Campaign

26.04.2020

https://coult.org/sound.php

https://chorbly.org/sound.php

https://kodray.org/sound.php

https://retualeigh.com/sound.php

https://grually.com/sound.php

https://footmess.com/sound.php

https://rarigussa.com/sound.php

https://pacallse.com/sound.php

Attributes

build_id
47

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 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ycgoe = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Neokqo\\osip.dll,DllRegisterServer"	msiexec.exe

Blocklisted process makes network request 6 IoCs

flow	pid	Process
323	4948	msiexec.exe
325	4948	msiexec.exe
338	4948	msiexec.exe
341	4948	msiexec.exe
352	4948	msiexec.exe
355	4948	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3796 set thread context of 4948	3796	rundll32.exe	102

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	4948	msiexec.exe
Token: SeSecurityPrivilege	4948	msiexec.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3924 wrote to memory of 3796	3924	rundll32.exe	87
PID 3924 wrote to memory of 3796	3924	rundll32.exe	87
PID 3924 wrote to memory of 3796	3924	rundll32.exe	87
PID 3796 wrote to memory of 4948	3796	rundll32.exe	102
PID 3796 wrote to memory of 4948	3796	rundll32.exe	102
PID 3796 wrote to memory of 4948	3796	rundll32.exe	102
PID 3796 wrote to memory of 4948	3796	rundll32.exe	102
PID 3796 wrote to memory of 4948	3796	rundll32.exe	102

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume7\imaginaryC2-master\examples\use-case-9-zloader\zloader-imaginary-c2\server_da.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3924
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume7\imaginaryC2-master\examples\use-case-9-zloader\zloader-imaginary-c2\server_da.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3796
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - Adds Run key to start application
    - Blocklisted process makes network request
    - Suspicious use of AdjustPrivilegeToken
    PID:4948

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3796-0-0x0000000002180000-0x00000000021D1000-memory.dmp

Filesize
324KB

Download
memory/3796-1-0x0000000010000000-0x00000000100DA000-memory.dmp

Filesize
872KB

Download
memory/3796-9-0x0000000010000000-0x00000000100DA000-memory.dmp

Filesize
872KB

Download
memory/4948-8-0x0000000000B40000-0x0000000000B74000-memory.dmp

Filesize
208KB

Download
memory/4948-10-0x0000000000B40000-0x0000000000B74000-memory.dmp

Filesize
208KB

Download
memory/4948-12-0x0000000000B40000-0x0000000000B74000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads