zloader | c37bc29895eae8a3410142b9eaa4b8a125def1f2261c8642534bd56e135514fc

Analysis

max time kernel
61s
max time network
12s
platform
windows7_x64
resource
win7v20201028
submitted
02-04-2021 05:25

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General

Target

287352aca562a84f441ad7794832770ddfe283a8f05bab7a37f2ba66f3dc7edf.dll
Size

619KB
MD5

a467c5e63940b8bc9b56f382aa20ea94
SHA1

eac1e8911a5fced479130bd8c7382aa6cb3278c9
SHA256

287352aca562a84f441ad7794832770ddfe283a8f05bab7a37f2ba66f3dc7edf
SHA512

2bf61eb3264e2171cb4dad95018ac5dca826950821f5b8c8a1399bac6fe55dab258fd54f12f3d3c83039ce37b43f292fefc02082010f102a26e86bccc04a1ce9

Score

10^/10

zloader nut 30/03 botnet trojan

Malware Config

Extracted

Family

zloader

Botnet

nut

Campaign

30/03

https://holacast.com/post.php

https://homeloansadvisor.in/post.php

https://hoteldonalala.com.mx/post.php

https://hotimobiliaria.com.br/post.php

https://hrdgschool.com/post.php

https://huloolcreations.com/post.php

https://hyundainhatrang.vn/post.php

https://iaikotasemarang.id/post.php

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

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 1832 wrote to memory of 1944	1832	regsvr32.exe	regsvr32.exe
PID 1832 wrote to memory of 1944	1832	regsvr32.exe	regsvr32.exe
PID 1832 wrote to memory of 1944	1832	regsvr32.exe	regsvr32.exe
PID 1832 wrote to memory of 1944	1832	regsvr32.exe	regsvr32.exe
PID 1832 wrote to memory of 1944	1832	regsvr32.exe	regsvr32.exe
PID 1832 wrote to memory of 1944	1832	regsvr32.exe	regsvr32.exe
PID 1832 wrote to memory of 1944	1832	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\287352aca562a84f441ad7794832770ddfe283a8f05bab7a37f2ba66f3dc7edf.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1832

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\287352aca562a84f441ad7794832770ddfe283a8f05bab7a37f2ba66f3dc7edf.dll
2⤵
PID:1944

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1832-2-0x000007FEFC251000-0x000007FEFC253000-memory.dmp

Filesize
8KB

Download
memory/1944-3-0x0000000000000000-mapping.dmp

Download
memory/1944-4-0x00000000765A1000-0x00000000765A3000-memory.dmp

Filesize
8KB

Download
memory/1944-5-0x0000000074780000-0x00000000747AB000-memory.dmp

Filesize
172KB

Download
memory/1944-6-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download