zloader | 0a529a4059586c60a025c4f646c6ca443488a39263f5f21b897fe7f9373602e8

General

Target

0a529a4059586c60a025c4f646c6ca443488a39263f5f21b897fe7f9373602e8.dll
Size

854KB
MD5

19e408f81cf26358f32010d0e8de00df
SHA1

31361849ff0cc6b9fecc7489462bb683d0f2af49
SHA256

0a529a4059586c60a025c4f646c6ca443488a39263f5f21b897fe7f9373602e8
SHA512

55be375f7a50d5ba319a9919ba7faf7f847c1e9164c973ddc77a504fbda9569e3c911c566e8719f3b237753bee41757477db20b6cd413953c356862a0a621220

Score

10^/10

zloader main 09.04.2020 botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

main

Campaign

09.04.2020

C2

https://vacontd.com/sound.php

https://zelacarths.com/sound.php

https://bluslias.com/sound.php

https://adandore.com/sound.php

https://ficutept.com/sound.php

https://veckeard.com/sound.php

Attributes

build_id
35

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\Ykraafyg = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Apidry\\isry.dll,DllRegisterServer"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 1508 set thread context of 520 1508 rundll32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 520 msiexec.exe
Token: SeSecurityPrivilege 520 msiexec.exe

description	pid	process	target process
PID 1508 set thread context of 520	1508	rundll32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	520	msiexec.exe
Token: SeSecurityPrivilege	520	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1096 wrote to memory of 1508	1096	rundll32.exe	rundll32.exe
PID 1096 wrote to memory of 1508	1096	rundll32.exe	rundll32.exe
PID 1096 wrote to memory of 1508	1096	rundll32.exe	rundll32.exe
PID 1096 wrote to memory of 1508	1096	rundll32.exe	rundll32.exe
PID 1096 wrote to memory of 1508	1096	rundll32.exe	rundll32.exe
PID 1096 wrote to memory of 1508	1096	rundll32.exe	rundll32.exe
PID 1096 wrote to memory of 1508	1096	rundll32.exe	rundll32.exe
PID 1508 wrote to memory of 520	1508	rundll32.exe	msiexec.exe
PID 1508 wrote to memory of 520	1508	rundll32.exe	msiexec.exe
PID 1508 wrote to memory of 520	1508	rundll32.exe	msiexec.exe
PID 1508 wrote to memory of 520	1508	rundll32.exe	msiexec.exe
PID 1508 wrote to memory of 520	1508	rundll32.exe	msiexec.exe
PID 1508 wrote to memory of 520	1508	rundll32.exe	msiexec.exe
PID 1508 wrote to memory of 520	1508	rundll32.exe	msiexec.exe
PID 1508 wrote to memory of 520	1508	rundll32.exe	msiexec.exe
PID 1508 wrote to memory of 520	1508	rundll32.exe	msiexec.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0a529a4059586c60a025c4f646c6ca443488a39263f5f21b897fe7f9373602e8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1096

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0a529a4059586c60a025c4f646c6ca443488a39263f5f21b897fe7f9373602e8.dll,#1
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1508

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:520

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/520-58-0x00000000000D0000-0x00000000000D1000-memory.dmp

Filesize
4KB

Download
memory/520-57-0x0000000000090000-0x00000000000C2000-memory.dmp

Filesize
200KB

Download
memory/520-59-0x0000000000090000-0x00000000000C2000-memory.dmp

Filesize
200KB

Download
memory/520-61-0x0000000000090000-0x00000000000C2000-memory.dmp

Filesize
200KB

Download
memory/1508-54-0x0000000076C61000-0x0000000076C63000-memory.dmp

Filesize
8KB

Download
memory/1508-55-0x00000000007D0000-0x000000000090F000-memory.dmp

Filesize
1.2MB

Download
memory/1508-56-0x0000000010000000-0x00000000101C1000-memory.dmp

Filesize
1.8MB

Download

Analysis

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