zloader | 6d63bbc66801b9842d93edb1ebb0bae46a7218dceb83328f27deb5f3ad0f974b

Resubmissions

31-10-2020 05:41

201031-a4vqedhr2n 10

Analysis

max time kernel
145s
max time network
149s
platform
windows7_x64
resource
win7v20201028
submitted
31-10-2020 05:41

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General

Target

ZnVmZdD.dll
Size

539KB
MD5

a070bb84c2735c67a3f6154dc403f7d0
SHA1

fac8a42c17a0f19760a8596980707278de24556c
SHA256

4553d627f2509e19e9b84491c08ec9854d785df4f74e900b969c57ccd244c086
SHA512

bd32cd6ae1caea1722bf0df36a6952ba9381afcd45423231a761b8df692c3364172ea04637fc9a8a242a1a363931db8248c89024aace5b65383eeabbdcd4f7db

Score

10^/10

zloader apr14 spam botnet trojan

Malware Config

Extracted

Family

zloader

Botnet

Apr14

Campaign

Spam

http://wmwifbajxxbcxmucxmlc.com/post.php

http://ojnxjgfjlftfkkuxxiqd.com/post.php

http://pwkqhdgytsshkoibaake.com/post.php

http://snnmnkxdhflwgthqismb.com/post.php

http://iawfqecrwohcxnhwtofa.com/post.php

http://nlbmfsyplohyaicmxhum.com/post.php

http://fvqlkgedqjiqgapudkgq.com/post.php

http://cmmxhurildiigqghlryq.com/post.php

http://nmqsmbiabjdnuushksas.com/post.php

http://fyratyubvflktyyjiqgq.com/post.php

rc4.plain

Signatures

Zloader, Terdot, DELoader, ZeusSphinx
Zloader is a malware strain that was initially discovered back in August 2015.
trojan botnet zloader

Blacklisted process makes network request 1 IoCs

flow	pid	Process
11	284	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1940 set thread context of 284	1940	rundll32.exe	30

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	284	msiexec.exe
Token: SeSecurityPrivilege	284	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1068 wrote to memory of 1940	1068	rundll32.exe	25
PID 1068 wrote to memory of 1940	1068	rundll32.exe	25
PID 1068 wrote to memory of 1940	1068	rundll32.exe	25
PID 1068 wrote to memory of 1940	1068	rundll32.exe	25
PID 1068 wrote to memory of 1940	1068	rundll32.exe	25
PID 1068 wrote to memory of 1940	1068	rundll32.exe	25
PID 1068 wrote to memory of 1940	1068	rundll32.exe	25
PID 1940 wrote to memory of 284	1940	rundll32.exe	30
PID 1940 wrote to memory of 284	1940	rundll32.exe	30
PID 1940 wrote to memory of 284	1940	rundll32.exe	30
PID 1940 wrote to memory of 284	1940	rundll32.exe	30
PID 1940 wrote to memory of 284	1940	rundll32.exe	30
PID 1940 wrote to memory of 284	1940	rundll32.exe	30
PID 1940 wrote to memory of 284	1940	rundll32.exe	30
PID 1940 wrote to memory of 284	1940	rundll32.exe	30
PID 1940 wrote to memory of 284	1940	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ZnVmZdD.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1068
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ZnVmZdD.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1940
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - Blacklisted process makes network request
    - Suspicious use of AdjustPrivilegeToken
    PID:284

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/284-2-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/284-1-0x0000000000090000-0x00000000000C4000-memory.dmp

Filesize
208KB

Download
memory/284-3-0x0000000000090000-0x00000000000C4000-memory.dmp

Filesize
208KB

Download
memory/360-5-0x000007FEF6460000-0x000007FEF66DA000-memory.dmp

Filesize
2.5MB

Download