zloader | d20f5e6ff3b8af7d2adb395d2fc57b5c35343fc7b17865ccbbc66b66711a3b4c

General

Target

AvjaxFt7.html.dll
Size

511KB
MD5

c6b02277b3dd7e0fd1133cf9290cdef6
SHA1

754cc1546ceafe9f62db188e214d5696aed609d5
SHA256

d20f5e6ff3b8af7d2adb395d2fc57b5c35343fc7b17865ccbbc66b66711a3b4c
SHA512

e5702c48ce1dcdde8c059502f4c316ec31dd02ff0995ce33ebadbca913d31d0e213089c162e8cdbe356f7ca806e00ffe5f00f4ccc7ed97b6a09966fad392a701

Score

10^/10

zloader kev 12/03 botnet trojan

Malware Config

Extracted

Family

zloader

Botnet

kev

Campaign

12/03

C2

https://dazzlingnight.com/post.php

https://rylaconfxilo.tk/post.php

https://seaofsilver.com/post.php

https://kenthehafana.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 4 IoCs

Processes:

msiexec.exe

flow pid process

7 1320 msiexec.exe
9 1320 msiexec.exe
11 1320 msiexec.exe
13 1320 msiexec.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

regsvr32.exe

description pid process target process

PID 2044 set thread context of 1320 2044 regsvr32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 1320 msiexec.exe
Token: SeSecurityPrivilege 1320 msiexec.exe

flow	pid	process
7	1320	msiexec.exe
9	1320	msiexec.exe
11	1320	msiexec.exe
13	1320	msiexec.exe

description	pid	process	target process
PID 2044 set thread context of 1320	2044	regsvr32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	1320	msiexec.exe
Token: SeSecurityPrivilege	1320	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

regsvr32.exeregsvr32.exe

description	pid	process	target process
PID 1152 wrote to memory of 2044	1152	regsvr32.exe	regsvr32.exe
PID 1152 wrote to memory of 2044	1152	regsvr32.exe	regsvr32.exe
PID 1152 wrote to memory of 2044	1152	regsvr32.exe	regsvr32.exe
PID 1152 wrote to memory of 2044	1152	regsvr32.exe	regsvr32.exe
PID 1152 wrote to memory of 2044	1152	regsvr32.exe	regsvr32.exe
PID 1152 wrote to memory of 2044	1152	regsvr32.exe	regsvr32.exe
PID 1152 wrote to memory of 2044	1152	regsvr32.exe	regsvr32.exe
PID 2044 wrote to memory of 1320	2044	regsvr32.exe	msiexec.exe
PID 2044 wrote to memory of 1320	2044	regsvr32.exe	msiexec.exe
PID 2044 wrote to memory of 1320	2044	regsvr32.exe	msiexec.exe
PID 2044 wrote to memory of 1320	2044	regsvr32.exe	msiexec.exe
PID 2044 wrote to memory of 1320	2044	regsvr32.exe	msiexec.exe
PID 2044 wrote to memory of 1320	2044	regsvr32.exe	msiexec.exe
PID 2044 wrote to memory of 1320	2044	regsvr32.exe	msiexec.exe
PID 2044 wrote to memory of 1320	2044	regsvr32.exe	msiexec.exe
PID 2044 wrote to memory of 1320	2044	regsvr32.exe	msiexec.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\AvjaxFt7.html.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1152

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\AvjaxFt7.html.dll
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2044

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Blocklisted process makes network request
- Suspicious use of AdjustPrivilegeToken
PID:1320

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/392-10-0x000007FEF6010000-0x000007FEF628A000-memory.dmp

Filesize
2.5MB

Download
memory/1152-2-0x000007FEFB991000-0x000007FEFB993000-memory.dmp

Filesize
8KB

Download
memory/1320-7-0x0000000000000000-mapping.dmp

Download
memory/1320-9-0x00000000000D0000-0x00000000000F9000-memory.dmp

Filesize
164KB

Download
memory/2044-3-0x0000000000000000-mapping.dmp

Download
memory/2044-4-0x00000000760C1000-0x00000000760C3000-memory.dmp

Filesize
8KB

Download
memory/2044-5-0x00000000744C0000-0x00000000744E9000-memory.dmp

Filesize
164KB

Download
memory/2044-6-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download

Analysis

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