zloader | 8e50da51386c2f267afaf1a419e4467d62c01c9704f0e17c4aa188d0c090c8b2

Resubmissions

14-02-2021 15:04

210214-9vhhccnxks 10

14-02-2021 14:13

210214-vw3zm8jwws 10

Analysis

max time kernel
1778s
max time network
1778s
platform
windows7_x64
resource
win7v20201028
submitted
14-02-2021 15:04

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General

Target

8e50da51386c2f267afaf1a419e4467d62c01c9704f0e17c4aa188d0c090c8b2.dll
Size

362KB
MD5

d2852a3b2a20846528cec53426fd5f9c
SHA1

1fa892f9280708e7c82e958bec516bb2b09351f3
SHA256

8e50da51386c2f267afaf1a419e4467d62c01c9704f0e17c4aa188d0c090c8b2
SHA512

247fae9f2c9bdca9d7eb4f44996e7e28d2cd9b7c87ea05a15b72ecb073750c8d9199d585771366687c43d802eb474e9486bb328d2984abeb4aacee62916ca2b6

Score

10^/10

zloader kev 08/02 botnet trojan

Malware Config

Extracted

Family

zloader

Botnet

kev

Campaign

08/02

https://earfetti.com/post.php

https://evalynews.com/post.php

https://zeistatwalk.tk/post.php

https://spiraninendreamneu.tk/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

Blocklisted process makes network request 18 IoCs

Processes:

msiexec.exe

flow	pid	process
6	1628	msiexec.exe
7	1628	msiexec.exe
8	1628	msiexec.exe
9	1628	msiexec.exe
10	1628	msiexec.exe
11	1628	msiexec.exe
13	1628	msiexec.exe
15	1628	msiexec.exe
16	1628	msiexec.exe
17	1628	msiexec.exe
18	1628	msiexec.exe
19	1628	msiexec.exe
21	1628	msiexec.exe
22	1628	msiexec.exe
23	1628	msiexec.exe
24	1628	msiexec.exe
25	1628	msiexec.exe
26	1628	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 2016 set thread context of 1628 2016 rundll32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 1628 msiexec.exe
Token: SeSecurityPrivilege 1628 msiexec.exe

description	pid	process	target process
PID 2016 set thread context of 1628	2016	rundll32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	1628	msiexec.exe
Token: SeSecurityPrivilege	1628	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1852 wrote to memory of 2016	1852	rundll32.exe	rundll32.exe
PID 1852 wrote to memory of 2016	1852	rundll32.exe	rundll32.exe
PID 1852 wrote to memory of 2016	1852	rundll32.exe	rundll32.exe
PID 1852 wrote to memory of 2016	1852	rundll32.exe	rundll32.exe
PID 1852 wrote to memory of 2016	1852	rundll32.exe	rundll32.exe
PID 1852 wrote to memory of 2016	1852	rundll32.exe	rundll32.exe
PID 1852 wrote to memory of 2016	1852	rundll32.exe	rundll32.exe
PID 2016 wrote to memory of 1628	2016	rundll32.exe	msiexec.exe
PID 2016 wrote to memory of 1628	2016	rundll32.exe	msiexec.exe
PID 2016 wrote to memory of 1628	2016	rundll32.exe	msiexec.exe
PID 2016 wrote to memory of 1628	2016	rundll32.exe	msiexec.exe
PID 2016 wrote to memory of 1628	2016	rundll32.exe	msiexec.exe
PID 2016 wrote to memory of 1628	2016	rundll32.exe	msiexec.exe
PID 2016 wrote to memory of 1628	2016	rundll32.exe	msiexec.exe
PID 2016 wrote to memory of 1628	2016	rundll32.exe	msiexec.exe
PID 2016 wrote to memory of 1628	2016	rundll32.exe	msiexec.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8e50da51386c2f267afaf1a419e4467d62c01c9704f0e17c4aa188d0c090c8b2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1852

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8e50da51386c2f267afaf1a419e4467d62c01c9704f0e17c4aa188d0c090c8b2.dll,#1
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2016

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Blocklisted process makes network request
- Suspicious use of AdjustPrivilegeToken
PID:1628

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/388-9-0x000007FEF6500000-0x000007FEF677A000-memory.dmp

Filesize
2.5MB

Download
memory/1628-6-0x0000000000000000-mapping.dmp

Download
memory/1628-8-0x0000000000090000-0x00000000000B9000-memory.dmp

Filesize
164KB

Download
memory/2016-2-0x0000000000000000-mapping.dmp

Download
memory/2016-3-0x00000000756C1000-0x00000000756C3000-memory.dmp

Filesize
8KB

Download
memory/2016-4-0x0000000074DA0000-0x0000000074DC9000-memory.dmp

Filesize
164KB

Download
memory/2016-5-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download