zloader | a3c625b0c6de6b9885470ce4e5f55e08e64c82c668cdc1df8d1a81d751f401be

General

Target

3Z8QHEBk.tmp.exe
Size

137KB
MD5

0d969fd596743d82839ac89189f47a2b
SHA1

2adb5aba20d3af1b9c78856555a08015b0f7df25
SHA256

a3c625b0c6de6b9885470ce4e5f55e08e64c82c668cdc1df8d1a81d751f401be
SHA512

ac2f7d71e8c547b6c8c12fc00ea9ef27a76daf59fdfe5b42cc32f42cebc85a689e04da239489a59c746300f89e1977f935ae94bd2a0047c27f428832a070068c

Score

10^/10

ransomware discovery persistence spyware trojan botnet zloader stealer raccoon backdoor smokeloader

Malware Config

Extracted

Path

C:\Users\Admin\AppData\LocalLow\machineinfo.txt

Family

raccoon

Ransom Note

[Raccoon Stealer] - v1.5.13-af-hotfix Release Build compiled on Mon Jul 6 14:33:03 2020 Launched at: 2020.09.19 - 02:24:24 GMT Bot_ID: 18823CA4-5761-4226-8787-CF36135F1C68_Admin Running on a desktop =R=A=C=C=O=O=N= - Cookies: 0 - Passwords: 5 - Files: 0 System Information: - System Language: English - System TimeZone: -0 hrs - IP: 154.61.71.13 - Location: 37.750999, -97.821999 | ?, ?, United States (?) - ComputerName: LZUKLIOU - Username: Admin - Windows version: NT 10.0 - Product name: Windows 10 Pro - System arch: x64 - CPU: Persocon Processor 2.5+ (2 cores) - RAM: 4095 MB (715 MB used) - Screen resolution: 1280x720 - Display devices: 0) Microsoft Basic Display Adapter ============

Extracted

Family

smokeloader

Version

2020

C2

http://dkajsdjiqwdwnfj.info/

http://2831ujedkdajsdj.info/

http://928eijdksasnfss.info/

https://dkajsdjiqwdwnfj.info/

https://2831ujedkdajsdj.info/

https://928eijdksasnfss.info/

rc4.i32

Extracted

Family

zloader

Botnet

DLLobnova

Campaign

02.09.2020dll

C2

https://fqnvtmqsywublocpheas.ru/gate.php

https://fqnvtmqsywublocpheas.su/gate.php

https://fqnvtmqsywublocpheas.eu/gate.php

https://fqnvtmqsywuikdjsmasablocpheas.eu/gate.php

https://fqnssvtmqsywufblocpheas.eu/gate.php

https://fqnvtmqsywublfocpheas.eu/gate.php

https://fqnvtmqsyfwublocpheas.eu/gate.php

https://fqnvtmqsywubflocpheas.eu/gate.php

rc4.plain

rsa_pubkey.plain

Signatures

Raccoon
Simple but powerful infostealer which was very active in 2019.
stealer raccoon
Raccoon log file 1 IoCs
Detects a log file produced by the Raccoon Stealer.

Processes:

yara_rule

raccoon_log_file
SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
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 2 IoCs

Processes:

msiexec.exe

flow pid process

28 2612 msiexec.exe
29 2612 msiexec.exe
Executes dropped EXE 1 IoCs

Processes:

B3D5.exe

pid process

2228 B3D5.exe
Deletes itself 1 IoCs

Processes:

pid process

2996
Loads dropped DLL 8 IoCs

Processes:

3Z8QHEBk.tmp.exeregsvr32.exeB3D5.exe

pid process

3888 3Z8QHEBk.tmp.exe
2448 regsvr32.exe
2228 B3D5.exe
2228 B3D5.exe
2228 B3D5.exe
2228 B3D5.exe
2228 B3D5.exe
2228 B3D5.exe
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

yara_rule
raccoon_log_file

flow	pid	process
28	2612	msiexec.exe
29	2612	msiexec.exe

pid	process
2228	B3D5.exe

pid	process
2996

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-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Windows\CurrentVersion\Run\Meaw = "regsvr32.exe /s C:\\Users\\Admin\\AppData\\Roaming\\Ases\\uqod.dll"	msiexec.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

JavaScript code in executable 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\nss3.dll	js

Suspicious use of SetThreadContext 1 IoCs

Processes:

regsvr32.exe

description pid process target process

PID 2448 set thread context of 2612 2448 regsvr32.exe msiexec.exe

description	pid	process	target process
PID 2448 set thread context of 2612	2448	regsvr32.exe	msiexec.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

3Z8QHEBk.tmp.exe

description	ioc	process
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3Z8QHEBk.tmp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3Z8QHEBk.tmp.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3Z8QHEBk.tmp.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

204 timeout.exe

pid	process
204	timeout.exe

Suspicious behavior: EnumeratesProcesses 2608 IoCs

Processes:

3Z8QHEBk.tmp.exe

pid	process
3888	3Z8QHEBk.tmp.exe
3888	3Z8QHEBk.tmp.exe
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996
2996

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

3Z8QHEBk.tmp.exe

pid process

3888 3Z8QHEBk.tmp.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 2612 msiexec.exe
Token: SeSecurityPrivilege 2612 msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	2612	msiexec.exe
Token: SeSecurityPrivilege	2612	msiexec.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

regsvr32.exeB3D5.execmd.exeregsvr32.exe

description	pid	process	target process
PID 2996 wrote to memory of 2228	2996		B3D5.exe
PID 2996 wrote to memory of 2228	2996		B3D5.exe
PID 2996 wrote to memory of 2228	2996		B3D5.exe
PID 2996 wrote to memory of 2408	2996		regsvr32.exe
PID 2996 wrote to memory of 2408	2996		regsvr32.exe
PID 2408 wrote to memory of 2448	2408	regsvr32.exe	regsvr32.exe
PID 2408 wrote to memory of 2448	2408	regsvr32.exe	regsvr32.exe
PID 2408 wrote to memory of 2448	2408	regsvr32.exe	regsvr32.exe
PID 2228 wrote to memory of 972	2228	B3D5.exe	cmd.exe
PID 2228 wrote to memory of 972	2228	B3D5.exe	cmd.exe
PID 2228 wrote to memory of 972	2228	B3D5.exe	cmd.exe
PID 972 wrote to memory of 204	972	cmd.exe	timeout.exe
PID 972 wrote to memory of 204	972	cmd.exe	timeout.exe
PID 972 wrote to memory of 204	972	cmd.exe	timeout.exe
PID 2448 wrote to memory of 2612	2448	regsvr32.exe	msiexec.exe
PID 2448 wrote to memory of 2612	2448	regsvr32.exe	msiexec.exe
PID 2448 wrote to memory of 2612	2448	regsvr32.exe	msiexec.exe
PID 2448 wrote to memory of 2612	2448	regsvr32.exe	msiexec.exe
PID 2448 wrote to memory of 2612	2448	regsvr32.exe	msiexec.exe

C:\Users\Admin\AppData\Local\Temp\3Z8QHEBk.tmp.exe
"C:\Users\Admin\AppData\Local\Temp\3Z8QHEBk.tmp.exe"
1⤵
- Loads dropped DLL
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:3888

C:\Users\Admin\AppData\Local\Temp\B3D5.exe
C:\Users\Admin\AppData\Local\Temp\B3D5.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2228

C:\Windows\SysWOW64\cmd.exe
cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\B3D5.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:972

C:\Windows\SysWOW64\timeout.exe
timeout /T 10 /NOBREAK
3⤵
- Delays execution with timeout.exe
PID:204

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\B5D9.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2408

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\B5D9.dll
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2448

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Blacklisted process makes network request
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:2612

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

2

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\B3D5.exe

Download Submit
C:\Users\Admin\AppData\Local\Temp\B3D5.exe

Download Submit
C:\Users\Admin\AppData\Local\Temp\B5D9.dll

Download Submit
\Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\freebl3.dll

Download Submit
\Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\freebl3.dll

Download Submit
\Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\mozglue.dll

Download Submit
\Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\nss3.dll

Download Submit
\Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\softokn3.dll

Download Submit
\Users\Admin\AppData\LocalLow\sqlite3.dll

Download Submit
\Users\Admin\AppData\Local\Temp\210A.tmp

Download Submit
\Users\Admin\AppData\Local\Temp\B5D9.dll

Download Submit
memory/204-20-0x0000000000000000-mapping.dmp

Download
memory/972-19-0x0000000000000000-mapping.dmp

Download
memory/2228-11-0x0000000002A61000-0x0000000002A62000-memory.dmp

Filesize
4KB

Download
memory/2228-12-0x0000000002B50000-0x0000000002B51000-memory.dmp

Filesize
4KB

Download
memory/2228-4-0x0000000000000000-mapping.dmp

Download
memory/2408-7-0x0000000000000000-mapping.dmp

Download
memory/2448-9-0x0000000000000000-mapping.dmp

Download
memory/2612-21-0x0000000000C20000-0x0000000000C4B000-memory.dmp

Filesize
172KB

Download
memory/2612-22-0x0000000000000000-mapping.dmp

Download
memory/2996-3-0x00000000008F0000-0x0000000000906000-memory.dmp

Filesize
88KB

Download
memory/3888-0-0x0000000006119000-0x000000000611A000-memory.dmp

Filesize
4KB

Download
memory/3888-1-0x0000000007DE0000-0x0000000007DE1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads