zloader | bbbc1a46aa7998a12dc9b13c29b5204b784669e60d8bb1d05fbf2741abf68342

General

Target

bbbc1a46aa7998a12dc9b13c29b5204b784669e60d8bb1d05fbf2741abf68342.dll
Size

847KB
MD5

4fc69f56dfa547aea675fdaa51141cc2
SHA1

ad3b5825bacb4768e7724b81cc5048cae16c9688
SHA256

bbbc1a46aa7998a12dc9b13c29b5204b784669e60d8bb1d05fbf2741abf68342
SHA512

791b37b80711be0eebc702efaf08445b256a6b768ce94314f693ee1dafe93ad9c756d1ad116be429d933b8cf2cfd3c72dc5c4a597d47b61ef664b5dd1edf432b

Score

10^/10

zloader main 18.03.2020 botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

main

Campaign

18.03.2020

C2

https://postxer.com/sound.php

https://sentspiels.com/sound.php

https://watae.org/sound.php

https://eirry.org/sound.php

https://lotio.org/sound.php

Attributes

build_id
24

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-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run\Maixaclu = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Iwlei\\ixkeyc.dll,DllRegisterServer"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 1912 set thread context of 688 1912 rundll32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 688 msiexec.exe
Token: SeSecurityPrivilege 688 msiexec.exe

description	pid	process	target process
PID 1912 set thread context of 688	1912	rundll32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	688	msiexec.exe
Token: SeSecurityPrivilege	688	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 800 wrote to memory of 1912	800	rundll32.exe	rundll32.exe
PID 800 wrote to memory of 1912	800	rundll32.exe	rundll32.exe
PID 800 wrote to memory of 1912	800	rundll32.exe	rundll32.exe
PID 800 wrote to memory of 1912	800	rundll32.exe	rundll32.exe
PID 800 wrote to memory of 1912	800	rundll32.exe	rundll32.exe
PID 800 wrote to memory of 1912	800	rundll32.exe	rundll32.exe
PID 800 wrote to memory of 1912	800	rundll32.exe	rundll32.exe
PID 1912 wrote to memory of 688	1912	rundll32.exe	msiexec.exe
PID 1912 wrote to memory of 688	1912	rundll32.exe	msiexec.exe
PID 1912 wrote to memory of 688	1912	rundll32.exe	msiexec.exe
PID 1912 wrote to memory of 688	1912	rundll32.exe	msiexec.exe
PID 1912 wrote to memory of 688	1912	rundll32.exe	msiexec.exe
PID 1912 wrote to memory of 688	1912	rundll32.exe	msiexec.exe
PID 1912 wrote to memory of 688	1912	rundll32.exe	msiexec.exe
PID 1912 wrote to memory of 688	1912	rundll32.exe	msiexec.exe
PID 1912 wrote to memory of 688	1912	rundll32.exe	msiexec.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bbbc1a46aa7998a12dc9b13c29b5204b784669e60d8bb1d05fbf2741abf68342.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:800

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bbbc1a46aa7998a12dc9b13c29b5204b784669e60d8bb1d05fbf2741abf68342.dll,#1
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1912

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:688

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/688-56-0x00000000000D0000-0x0000000000100000-memory.dmp

Filesize
192KB

Download
memory/688-57-0x00000000000D0000-0x0000000000101000-memory.dmp

Filesize
196KB

Download
memory/688-58-0x00000000000D0000-0x0000000000101000-memory.dmp

Filesize
196KB

Download
memory/688-60-0x00000000000D0000-0x0000000000100000-memory.dmp

Filesize
192KB

Download
memory/1912-53-0x0000000075F21000-0x0000000075F23000-memory.dmp

Filesize
8KB

Download
memory/1912-54-0x0000000000130000-0x0000000000170000-memory.dmp

Filesize
256KB

Download
memory/1912-55-0x0000000010000000-0x00000000100DA000-memory.dmp

Filesize
872KB

Download

Analysis

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