zloader | 15e6a048813e1fa7e06751b3cccd6125d7b8efb3ed160931213ac44eafa60807

General

Target

15e6a048813e1fa7e06751b3cccd6125d7b8efb3ed160931213ac44eafa60807.dll
Size

529KB
MD5

96ede22c743f990a839949fb3edd381b
SHA1

2506fb0f8e03108b5e4ee4555e6d9f309f4f8936
SHA256

15e6a048813e1fa7e06751b3cccd6125d7b8efb3ed160931213ac44eafa60807
SHA512

14922ce98535243e4f6e5c771c02397027b75b3e73ae807335dbcb97b653fc517010d89565ca6e0399a5012d40774455318a120ae5eb3f84693f9f0da1c1ed11

Score

10^/10

zloader plspam plspam botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

PLSPAM

Campaign

PLSPAM

C2

http://marchadvertisingnetwork4.com/post.php

http://marchadvertisingnetwork5.com/post.php

http://marchadvertisingnetwork6.com/post.php

http://marchadvertisingnetwork7.com/post.php

http://marchadvertisingnetwork8.com/post.php

http://marchadvertisingnetwork9.com/post.php

http://marchadvertisingnetwork10.com/post.php

Attributes

build_id
27

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\Deirbey = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Uwost\\syco.dll,DllRegisterServer"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1656 set thread context of 288	1656	rundll32.exe	30

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	288	msiexec.exe
Token: SeSecurityPrivilege	288	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 480 wrote to memory of 1656	480	rundll32.exe	27
PID 480 wrote to memory of 1656	480	rundll32.exe	27
PID 480 wrote to memory of 1656	480	rundll32.exe	27
PID 480 wrote to memory of 1656	480	rundll32.exe	27
PID 480 wrote to memory of 1656	480	rundll32.exe	27
PID 480 wrote to memory of 1656	480	rundll32.exe	27
PID 480 wrote to memory of 1656	480	rundll32.exe	27
PID 1656 wrote to memory of 288	1656	rundll32.exe	30
PID 1656 wrote to memory of 288	1656	rundll32.exe	30
PID 1656 wrote to memory of 288	1656	rundll32.exe	30
PID 1656 wrote to memory of 288	1656	rundll32.exe	30
PID 1656 wrote to memory of 288	1656	rundll32.exe	30
PID 1656 wrote to memory of 288	1656	rundll32.exe	30
PID 1656 wrote to memory of 288	1656	rundll32.exe	30
PID 1656 wrote to memory of 288	1656	rundll32.exe	30
PID 1656 wrote to memory of 288	1656	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\15e6a048813e1fa7e06751b3cccd6125d7b8efb3ed160931213ac44eafa60807.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:480
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\15e6a048813e1fa7e06751b3cccd6125d7b8efb3ed160931213ac44eafa60807.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1656
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    PID:288

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/288-59-0x0000000000090000-0x00000000000C0000-memory.dmp

Filesize
192KB

Download
memory/288-60-0x0000000000090000-0x00000000000C1000-memory.dmp

Filesize
196KB

Download
memory/288-61-0x0000000000090000-0x00000000000C1000-memory.dmp

Filesize
196KB

Download
memory/288-63-0x0000000000090000-0x00000000000C0000-memory.dmp

Filesize
192KB

Download
memory/1656-55-0x0000000074EC1000-0x0000000074EC3000-memory.dmp

Filesize
8KB

Download
memory/1656-57-0x0000000074990000-0x0000000074A35000-memory.dmp

Filesize
660KB

Download
memory/1656-56-0x0000000074990000-0x00000000749C0000-memory.dmp

Filesize
192KB

Download
memory/1656-58-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download

Analysis

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