zloader | eecf912bfb121a06499dd43e8f62381d18a8b9efdc9e57aa2ae3d355cb28794e

Resubmissions

03-11-2021 17:08

211103-vnrrpsecf5 10

28-10-2021 11:34

211028-nphf4agcan 10

Analysis

max time kernel
43s
max time network
156s
platform
windows7_x64
resource
win7-en-20210920
submitted
28-10-2021 11:34

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Report Analysis Logs

General

Target

SophosAmsiProvider.dll
Size

432KB
MD5

2b3251fe929788b34fd4af2b12c0ca09
SHA1

c58283831eb0d495b42236ff1ee59b05d6101873
SHA256

eecf912bfb121a06499dd43e8f62381d18a8b9efdc9e57aa2ae3d355cb28794e
SHA512

dd202ac9207c9e481911f29892c7fab12dc394349c51b318ab436d93c57f3217b3f52ba5bbc5fe0722bb5375fdd379810baaee334cc21cd34e7c09f357bfc386

Score

10^/10

zloader vasja vasja botnet suricata trojan

Malware Config

Extracted

Family

zloader

Botnet

vasja

Campaign

vasja

https://iqowijsdakm.com/gate.php

https://wiewjdmkfjn.com/gate.php

https://dksaoidiakjd.com/gate.php

https://iweuiqjdakjd.com/gate.php

https://yuidskadjna.com/gate.php

https://olksmadnbdj.com/gate.php

https://odsakmdfnbs.com/gate.php

https://odsakjmdnhsaj.com/gate.php

https://odjdnhsaj.com/gate.php

https://odoishsaj.com/gate.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
suricata: ET MALWARE Observed ZLoader CnC Domain in SNI
suricata: ET MALWARE Observed ZLoader CnC Domain in SNI
suricata

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 552 wrote to memory of 868	552	regsvr32.exe	regsvr32.exe
PID 552 wrote to memory of 868	552	regsvr32.exe	regsvr32.exe
PID 552 wrote to memory of 868	552	regsvr32.exe	regsvr32.exe
PID 552 wrote to memory of 868	552	regsvr32.exe	regsvr32.exe
PID 552 wrote to memory of 868	552	regsvr32.exe	regsvr32.exe
PID 552 wrote to memory of 868	552	regsvr32.exe	regsvr32.exe
PID 552 wrote to memory of 868	552	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\SophosAmsiProvider.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:552

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\SophosAmsiProvider.dll
2⤵
PID:868

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
PID:1716

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/552-54-0x000007FEFBF91000-0x000007FEFBF93000-memory.dmp

Filesize
8KB

Download
memory/868-55-0x0000000000000000-mapping.dmp

Download
memory/868-56-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

Filesize
8KB

Download
memory/868-57-0x0000000000140000-0x0000000000141000-memory.dmp

Filesize
4KB

Download
memory/868-58-0x0000000010000000-0x0000000010081000-memory.dmp

Filesize
516KB

Download
memory/1716-60-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/1716-59-0x00000000000D0000-0x00000000000F6000-memory.dmp

Filesize
152KB

Download
memory/1716-61-0x00000000000D0000-0x00000000000F6000-memory.dmp

Filesize
152KB

Download
memory/1716-62-0x0000000000000000-mapping.dmp

Download
memory/1716-64-0x00000000000D0000-0x00000000000F6000-memory.dmp

Filesize
152KB

Download