zloader | e38c9a5d62aec8a807336ef40668f82a9bf764a8102fe464ee7f82041e007bee

Analysis

max time kernel
147s
max time network
62s
platform
windows10_x64
resource
win10v200430
submitted
10/07/2020, 09:28

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General

Target
ungulate.dll
Size 284KB
Sample200710-93833k9nxa
SHA256 e38c9a5d62aec8a807336ef40668f82a9bf764a8102fe464ee7f82041e007bee
MD5 2881d2ca3bcf68dbbe2c3190a193dddc
SHA1 fc249ddc69222e5f62a6113211b20f5f21b5c2ab
SHA512 9b79fd41012121a52f2762f24bf05489d6be18b1240899bd8abc43ae92a4f37160ccdb736cec3ca138fba6b315680b6ef9822ff998b090256fc6323fd9372743
MD5 SHA1 SHA512

Score

10^/10

trojan botnet zloader persistence

Malware Config

Extracted

Family

zloader

Botnet

main

Campaign

2020-07-06

https://giridly.com/web/data
https://pleclep.com/web/data
https://phanleb.com/web/data
https://zonculet.com/web/data
https://dweandro.com/web/data
https://sweleger.com/web/data
https://cromecho.com/web/data
https://wunchilm.com/web/data
https://odoncrol.com/web/data

rc4.plain

rsa_pubkey.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-1-5-21-1231583446-2617009595-2137880041-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1231583446-2617009595-2137880041-1000\Software\Microsoft\Windows\CurrentVersion\Run\Kyederk = "regsvr32.exe /s C:\\Users\\Admin\\AppData\\Roaming\\Sielx\\efun.dll"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4064 set thread context of 2524	4064	rundll32.exe	73

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	2524	msiexec.exe
Token: SeSecurityPrivilege	2524	msiexec.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3692 wrote to memory of 4064	3692	rundll32.exe	66
PID 3692 wrote to memory of 4064	3692	rundll32.exe	66
PID 3692 wrote to memory of 4064	3692	rundll32.exe	66
PID 4064 wrote to memory of 2524	4064	rundll32.exe	73
PID 4064 wrote to memory of 2524	4064	rundll32.exe	73
PID 4064 wrote to memory of 2524	4064	rundll32.exe	73
PID 4064 wrote to memory of 2524	4064	rundll32.exe	73
PID 4064 wrote to memory of 2524	4064	rundll32.exe	73

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ungulate.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3692
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ungulate.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4064
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    PID:2524

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2524-1-0x00000000008A0000-0x00000000008CC000-memory.dmp

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