Malware Analysis Report

2025-06-15 21:58

Sample ID 221117-jywmvsdh87
Target f4fae06b0c73cef55ecba926edff5350e95fc54cbd81f0d81edde68a69c71c1b
SHA256 f4fae06b0c73cef55ecba926edff5350e95fc54cbd81f0d81edde68a69c71c1b
Tags
smokeloader systembc backdoor trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

f4fae06b0c73cef55ecba926edff5350e95fc54cbd81f0d81edde68a69c71c1b

Threat Level: Known bad

The file f4fae06b0c73cef55ecba926edff5350e95fc54cbd81f0d81edde68a69c71c1b was found to be: Known bad.

Malicious Activity Summary

smokeloader systembc backdoor trojan

SmokeLoader

Detects Smokeloader packer

SystemBC

Executes dropped EXE

Downloads MZ/PE file

Deletes itself

Drops file in Windows directory

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: EnumeratesProcesses

Checks SCSI registry key(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-11-17 08:05

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-11-17 08:05

Reported

2022-11-17 08:07

Platform

win10-20220901-en

Max time kernel

150s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f4fae06b0c73cef55ecba926edff5350e95fc54cbd81f0d81edde68a69c71c1b.exe"

Signatures

Detects Smokeloader packer

Description Indicator Process Target
N/A N/A N/A N/A

SmokeLoader

trojan backdoor smokeloader

SystemBC

trojan systembc

Downloads MZ/PE file

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\FEE2.exe N/A
N/A N/A C:\ProgramData\ksncv\oovht.exe N/A

Deletes itself

Description Indicator Process Target
N/A N/A N/A N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\Tasks\oovht.job C:\Users\Admin\AppData\Local\Temp\FEE2.exe N/A
File opened for modification C:\Windows\Tasks\oovht.job C:\Users\Admin\AppData\Local\Temp\FEE2.exe N/A

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\f4fae06b0c73cef55ecba926edff5350e95fc54cbd81f0d81edde68a69c71c1b.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\f4fae06b0c73cef55ecba926edff5350e95fc54cbd81f0d81edde68a69c71c1b.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\f4fae06b0c73cef55ecba926edff5350e95fc54cbd81f0d81edde68a69c71c1b.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f4fae06b0c73cef55ecba926edff5350e95fc54cbd81f0d81edde68a69c71c1b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\f4fae06b0c73cef55ecba926edff5350e95fc54cbd81f0d81edde68a69c71c1b.exe N/A
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Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A N/A N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f4fae06b0c73cef55ecba926edff5350e95fc54cbd81f0d81edde68a69c71c1b.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2056 wrote to memory of 4376 N/A N/A C:\Users\Admin\AppData\Local\Temp\FEE2.exe
PID 2056 wrote to memory of 4376 N/A N/A C:\Users\Admin\AppData\Local\Temp\FEE2.exe
PID 2056 wrote to memory of 4376 N/A N/A C:\Users\Admin\AppData\Local\Temp\FEE2.exe

Processes

C:\Users\Admin\AppData\Local\Temp\f4fae06b0c73cef55ecba926edff5350e95fc54cbd81f0d81edde68a69c71c1b.exe

"C:\Users\Admin\AppData\Local\Temp\f4fae06b0c73cef55ecba926edff5350e95fc54cbd81f0d81edde68a69c71c1b.exe"

C:\Users\Admin\AppData\Local\Temp\FEE2.exe

C:\Users\Admin\AppData\Local\Temp\FEE2.exe

C:\ProgramData\ksncv\oovht.exe

C:\ProgramData\ksncv\oovht.exe start

Network

Country Destination Domain Proto
N/A 8.8.8.8:53 freeshmex.at udp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 152.89.247.33:80 tcp
N/A 20.189.173.2:443 tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 8.8.8.8:53 xclusivelogistic.com udp
N/A 198.54.119.160:443 xclusivelogistic.com tcp
N/A 175.126.109.15:80 freeshmex.at tcp
N/A 89.248.165.79:443 tcp

Files

memory/2652-120-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-121-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-122-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-124-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-126-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-127-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-128-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-129-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-125-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-130-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-123-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-131-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-133-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-134-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-132-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-136-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-137-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-138-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-139-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-140-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-141-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-143-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-142-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-144-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-146-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-150-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-152-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-153-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-151-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-149-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-148-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-147-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-145-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/2652-155-0x0000000000720000-0x0000000000729000-memory.dmp

memory/2652-156-0x0000000000400000-0x000000000058E000-memory.dmp

memory/2652-154-0x0000000000590000-0x000000000063E000-memory.dmp

memory/2652-157-0x0000000000400000-0x000000000058E000-memory.dmp

memory/4376-160-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Local\Temp\FEE2.exe

MD5 ede4e0e4f4547b54a24a170161ae4542
SHA1 7b15b83ebd70c52302e0dea0dea0404026298713
SHA256 5411181f4261c8a1b21450ea7376df3d60003b19ad6ad6c6e1fbee2e4b6b8e32
SHA512 d602b165419d1c52e612027208e14a6dde2debfe0efc77c10041e9b02f95ddfe0996d1a6b6d3ad212e00a0f51cfe86cc767f38c5610d9f279b0191d169ddd0f4

memory/4376-162-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-163-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-164-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-168-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-170-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-173-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-174-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-177-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-176-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-175-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-172-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-171-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\FEE2.exe

MD5 ede4e0e4f4547b54a24a170161ae4542
SHA1 7b15b83ebd70c52302e0dea0dea0404026298713
SHA256 5411181f4261c8a1b21450ea7376df3d60003b19ad6ad6c6e1fbee2e4b6b8e32
SHA512 d602b165419d1c52e612027208e14a6dde2debfe0efc77c10041e9b02f95ddfe0996d1a6b6d3ad212e00a0f51cfe86cc767f38c5610d9f279b0191d169ddd0f4

memory/4376-167-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-166-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-165-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-178-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-181-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-184-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-185-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-183-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-182-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-186-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-187-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-189-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-192-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-193-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-195-0x00000000007D6000-0x00000000007E7000-memory.dmp

memory/4376-197-0x0000000000590000-0x00000000006DA000-memory.dmp

memory/4376-191-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-190-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-188-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-180-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-179-0x0000000077BA0000-0x0000000077D2E000-memory.dmp

memory/4376-215-0x0000000000400000-0x000000000058E000-memory.dmp

memory/4376-219-0x00000000007D6000-0x00000000007E7000-memory.dmp

memory/4376-220-0x0000000000590000-0x00000000006DA000-memory.dmp

C:\ProgramData\ksncv\oovht.exe

MD5 ede4e0e4f4547b54a24a170161ae4542
SHA1 7b15b83ebd70c52302e0dea0dea0404026298713
SHA256 5411181f4261c8a1b21450ea7376df3d60003b19ad6ad6c6e1fbee2e4b6b8e32
SHA512 d602b165419d1c52e612027208e14a6dde2debfe0efc77c10041e9b02f95ddfe0996d1a6b6d3ad212e00a0f51cfe86cc767f38c5610d9f279b0191d169ddd0f4

C:\ProgramData\ksncv\oovht.exe

MD5 ede4e0e4f4547b54a24a170161ae4542
SHA1 7b15b83ebd70c52302e0dea0dea0404026298713
SHA256 5411181f4261c8a1b21450ea7376df3d60003b19ad6ad6c6e1fbee2e4b6b8e32
SHA512 d602b165419d1c52e612027208e14a6dde2debfe0efc77c10041e9b02f95ddfe0996d1a6b6d3ad212e00a0f51cfe86cc767f38c5610d9f279b0191d169ddd0f4

memory/720-270-0x0000000000590000-0x000000000063E000-memory.dmp

memory/720-272-0x0000000000400000-0x000000000058E000-memory.dmp

memory/720-271-0x0000000000590000-0x000000000063E000-memory.dmp

memory/720-274-0x0000000000590000-0x000000000063E000-memory.dmp

memory/720-275-0x0000000000590000-0x000000000063E000-memory.dmp