zloader | c194e82e8a3ada40421b28e668c9135f09f9336732dc31053fc0cebf7be97564

Resubmissions

17-11-2023 10:11

231117-l79xyshg5x 10

09-11-2020 20:51

201109-e7t1r93kmn 10

Analysis

max time kernel
835s
max time network
838s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
17-11-2023 10:11

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General

Target

sustenance.dll
Size

525KB
MD5

d50829ab5499f6ec3a0829515db611d0
SHA1

d6d5ea77c50e01a1472e8ea7dbd1380df65fe0b4
SHA256

c194e82e8a3ada40421b28e668c9135f09f9336732dc31053fc0cebf7be97564
SHA512

104e1e5a50e0928d96cf28c560fbab1006e3cbd049edc661e8512eabee2cc80119e143359a14ff6d6e509c0cd2ea8ef64a137f6010e017a36293485d134a88b9
SSDEEP

6144:CG/nMeCMDNS1wz3YpxG7Y2nwT6ESbgwZQ6gRPhkqNMyHMr+u/B:PfM8DNS1wkb52UNaQ5R5kqytr+u5

Score

10^/10

zloader can1 vbsdll5 botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

CAN1

Campaign

VBSDLL5

https://studentsclasses.com/post.php

https://booking-king.com/post.php

Attributes

build_id
39

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ytfoefyz = "regsvr32.exe /s C:\\Users\\Admin\\AppData\\Roaming\\Yxig\\qeal.dll"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 2484 set thread context of 2420 2484 rundll32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 2420 msiexec.exe
Token: SeSecurityPrivilege 2420 msiexec.exe

description	pid	process	target process
PID 2484 set thread context of 2420	2484	rundll32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	2420	msiexec.exe
Token: SeSecurityPrivilege	2420	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1564 wrote to memory of 2484	1564	rundll32.exe	rundll32.exe
PID 1564 wrote to memory of 2484	1564	rundll32.exe	rundll32.exe
PID 1564 wrote to memory of 2484	1564	rundll32.exe	rundll32.exe
PID 1564 wrote to memory of 2484	1564	rundll32.exe	rundll32.exe
PID 1564 wrote to memory of 2484	1564	rundll32.exe	rundll32.exe
PID 1564 wrote to memory of 2484	1564	rundll32.exe	rundll32.exe
PID 1564 wrote to memory of 2484	1564	rundll32.exe	rundll32.exe
PID 2484 wrote to memory of 2420	2484	rundll32.exe	msiexec.exe
PID 2484 wrote to memory of 2420	2484	rundll32.exe	msiexec.exe
PID 2484 wrote to memory of 2420	2484	rundll32.exe	msiexec.exe
PID 2484 wrote to memory of 2420	2484	rundll32.exe	msiexec.exe
PID 2484 wrote to memory of 2420	2484	rundll32.exe	msiexec.exe
PID 2484 wrote to memory of 2420	2484	rundll32.exe	msiexec.exe
PID 2484 wrote to memory of 2420	2484	rundll32.exe	msiexec.exe
PID 2484 wrote to memory of 2420	2484	rundll32.exe	msiexec.exe
PID 2484 wrote to memory of 2420	2484	rundll32.exe	msiexec.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\sustenance.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1564

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\sustenance.dll,#1
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2484

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:2420

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/2420-3-0x0000000000090000-0x00000000000BB000-memory.dmp

Filesize
172KB

Download
memory/2420-5-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/2420-7-0x0000000000090000-0x00000000000BB000-memory.dmp

Filesize
172KB

Download
memory/2420-9-0x0000000000090000-0x00000000000BB000-memory.dmp

Filesize
172KB

Download
memory/2420-11-0x0000000000090000-0x00000000000BB000-memory.dmp

Filesize
172KB

Download
memory/2420-12-0x0000000000090000-0x00000000000BB000-memory.dmp

Filesize
172KB

Download
memory/2420-13-0x0000000000090000-0x00000000000BB000-memory.dmp

Filesize
172KB

Download
memory/2484-1-0x0000000000240000-0x000000000026B000-memory.dmp

Filesize
172KB

Download
memory/2484-2-0x0000000000120000-0x0000000000148000-memory.dmp

Filesize
160KB

Download
memory/2484-0-0x0000000000240000-0x000000000026B000-memory.dmp

Filesize
172KB

Download
memory/2484-8-0x0000000000240000-0x000000000026B000-memory.dmp

Filesize
172KB

Download