zloader | 58afcdc59220bd54561c650d1c9f1ebed87e517dc747dfc7d243bd19708b7222

Resubmissions

16-11-2023 20:27

231116-y8gzsage5v 10

19-07-2020 19:22

200719-j3qdf4g92x 10

Analysis

max time kernel
119s
max time network
125s
platform
windows7_x64
resource
win7
submitted
19-07-2020 19:22

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General

Target

zloader 2_1.0.6.0.vir.exe
Size

141KB
MD5

a74a0a84a2ed0674e540ac9aa4405638
SHA1

6ea4c0b33b660908b6032252c345c1936364390e
SHA256

58afcdc59220bd54561c650d1c9f1ebed87e517dc747dfc7d243bd19708b7222
SHA512

a7dc0515208a02ebaec31b39c74bcf366ea2deaac7f7bbbe2b748273c53868144dec8e129f909a8b5d46c0598db384581977f51a42b2b19fb1da15d62699262c

Score

10^/10

persistence trojan botnet zloader

Malware Config

Extracted

Family

zloader

Botnet

-test2

Campaign

web7-test2

https://45.72.3.132/web7643/gate.php

rc4.plain

Signatures

Suspicious use of SetThreadContext 1 IoCs

Processes:

zloader 2_1.0.6.0.vir.exe

description pid process target process

PID 1152 set thread context of 1048 1152 zloader 2_1.0.6.0.vir.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 1048 msiexec.exe
Token: SeSecurityPrivilege 1048 msiexec.exe
Blacklisted process makes network request 5 IoCs

Processes:

msiexec.exe

flow pid process

4 1048 msiexec.exe
7 1048 msiexec.exe
10 1048 msiexec.exe
11 1048 msiexec.exe
12 1048 msiexec.exe

description	pid	process	target process
PID 1152 set thread context of 1048	1152	zloader 2_1.0.6.0.vir.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	1048	msiexec.exe
Token: SeSecurityPrivilege	1048	msiexec.exe

flow	pid	process
4	1048	msiexec.exe
7	1048	msiexec.exe
10	1048	msiexec.exe
11	1048	msiexec.exe
12	1048	msiexec.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\Gocefooc = "C:\\Users\\Admin\\AppData\\Roaming\\Dodia\\ifhuduu.exe"	msiexec.exe

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

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

zloader 2_1.0.6.0.vir.exe

description	pid	process	target process
PID 1152 wrote to memory of 1048	1152	zloader 2_1.0.6.0.vir.exe	msiexec.exe
PID 1152 wrote to memory of 1048	1152	zloader 2_1.0.6.0.vir.exe	msiexec.exe
PID 1152 wrote to memory of 1048	1152	zloader 2_1.0.6.0.vir.exe	msiexec.exe
PID 1152 wrote to memory of 1048	1152	zloader 2_1.0.6.0.vir.exe	msiexec.exe
PID 1152 wrote to memory of 1048	1152	zloader 2_1.0.6.0.vir.exe	msiexec.exe
PID 1152 wrote to memory of 1048	1152	zloader 2_1.0.6.0.vir.exe	msiexec.exe
PID 1152 wrote to memory of 1048	1152	zloader 2_1.0.6.0.vir.exe	msiexec.exe
PID 1152 wrote to memory of 1048	1152	zloader 2_1.0.6.0.vir.exe	msiexec.exe
PID 1152 wrote to memory of 1048	1152	zloader 2_1.0.6.0.vir.exe	msiexec.exe

C:\Users\Admin\AppData\Local\Temp\zloader 2_1.0.6.0.vir.exe
"C:\Users\Admin\AppData\Local\Temp\zloader 2_1.0.6.0.vir.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1152

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
2⤵
- Suspicious use of AdjustPrivilegeToken
- Blacklisted process makes network request
- Adds Run key to start application
PID:1048

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1048-0-0x00000000000D0000-0x00000000000F9000-memory.dmp

Filesize
164KB

Download
memory/1048-1-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/1048-2-0x00000000000D0000-0x00000000000F9000-memory.dmp

Filesize
164KB

Download
memory/1048-3-0x0000000000000000-mapping.dmp

Download