MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4fefc8e8a7c832d9d59f52fa3cdf766644485021be3e91499d57c8e0248c1bd6. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Smoke Loader


Vendor detections: 17


Intelligence 17 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4fefc8e8a7c832d9d59f52fa3cdf766644485021be3e91499d57c8e0248c1bd6
SHA3-384 hash: 3b46e49a12a2a2aeb7db86cb79c0ccb03c9d9312c16567e94e5f1b6c941c5ee4a3a2b4995c5a9d337e2644d2ce613a16
SHA1 hash: 999680364c32d44c1ceb03c41c988e044f0f3948
MD5 hash: 29c8fe3fe1b641a41966ff4886ca5020
humanhash: alpha-bakerloo-charlie-may
File name:29c8fe3fe1b641a41966ff4886ca5020.exe
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:243'200 bytes
First seen:2024-01-26 13:39:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 0434967da91307b41bbd56e96ff6e491 (1 x GuLoader, 1 x Smoke Loader, 1 x GCleaner)
ssdeep 3072:uSXudpX6HLVd+N1NXlLEpIzAfxzV887m+Xiw/Kl5OwITG7Lzuajnk49osm:uoLLK1N1NAfxzyr+ywWLITGiQnN9
TLSH T11A345B2372E13C54E6674B328E2EC2EB761FF5408E597769111A4BDB36722B2C263F11
TrID 46.6% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
25.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
8.5% (.EXE) Win64 Executable (generic) (10523/12/4)
5.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 14222234a0804400 (1 x Smoke Loader)
Reporter abuse_ch
Tags:exe Smoke Loader

Intelligence

File Origin
# of uploads :
1
# of downloads :
330
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
smoke
Create hunting rule
ID:
1
File name:
4fefc8e8a7c832d9d59f52fa3cdf766644485021be3e91499d57c8e0248c1bd6.exe
Verdict:
Malicious activity
Analysis date:
2024-01-26 13:46:06 UTC
Tags:
loader smoke smokeloader
Link:
https://app.any.run/tasks/d9e31496-96b4-46c7-877d-9d12a9835631

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
SmokeLoader
Create hunting rule
Link:
https://www.capesandbox.com/analysis/473036/
Detection(s):
Win.Packer.pkr_ce1a-9980177-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
DNS request
Sending an HTTP GET request
Query of malicious DNS domain
Sending a TCP request to an infection source
Unauthorized injection to a system process
Enabling autorun by creating a file
Sending an HTTP POST request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fingerprint packed
Link:
https://www.filescan.io/uploads/65b3b634fc0458d7ffdcd8c4/reports/ecb03ece-6295-4aca-b57d-d6a58cef6cb6/overview
Verdict:
Malicious
Labled as:
Midie.Generic
Link:
https://www.hybrid-analysis.com/sample/4fefc8e8a7c832d9d59f52fa3cdf766644485021be3e91499d57c8e0248c1bd6
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/8fae17c4-fd2d-4afa-ac31-f2daa7c4fe5f
Result
Threat name:
SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1381656
Signature
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Checks if the current machine is a virtual machine (disk enumeration)
Contains functionality to detect sleep reduction / modifications
Contains functionality to infect the boot sector
Creates a thread in another existing process (thread injection)
Delayed program exit found
Deletes itself after installation
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
Found malware configuration
Found stalling execution ending in API Sleep call
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies Group Policy settings
Modifies the windows firewall
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses netsh to modify the Windows network and firewall settings
Yara detected Defender Control Hacktool
Yara detected SmokeLoader
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1381656 Sample: Qkk9UKA1cW.exe Startdate: 26/01/2024 Architecture: WINDOWS Score: 100 84 gxutc2c.com 2->84 86 mmtplonline.com 2->86 94 Snort IDS alert for network traffic 2->94 96 Multi AV Scanner detection for domain / URL 2->96 98 Found malware configuration 2->98 100 14 other signatures 2->100 12 Qkk9UKA1cW.exe 2->12         started        15 rjjihgh 2->15         started        17 B219.exe 2->17         started        19 gpscript.exe 2->19         started        signatures3 process4 signatures5 114 Detected unpacking (changes PE section rights) 12->114 116 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 12->116 118 Maps a DLL or memory area into another process 12->118 128 2 other signatures 12->128 21 explorer.exe 7 7 12->21 injected 120 Antivirus detection for dropped file 15->120 122 Multi AV Scanner detection for dropped file 15->122 124 Machine Learning detection for dropped file 15->124 126 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 15->126 26 WerFault.exe 21 16 17->26         started        process6 dnsIp7 88 91.92.244.44, 80 THEZONEBG Bulgaria 21->88 90 190.12.87.61, 49754, 80 OPTICALTECHNOLOGIESSACPE Peru 21->90 92 4 other IPs or domains 21->92 66 C:\Users\user\AppData\Roaming\rjjihgh, PE32 21->66 dropped 68 C:\Users\user\AppData\Local\Temp\B90.exe, PE32+ 21->68 dropped 70 C:\Users\user\AppData\Local\Temp\B219.exe, PE32 21->70 dropped 72 C:\Users\user\...\rjjihgh:Zone.Identifier, ASCII 21->72 dropped 102 System process connects to network (likely due to code injection or exploit) 21->102 104 Benign windows process drops PE files 21->104 106 Deletes itself after installation 21->106 108 Hides that the sample has been downloaded from the Internet (zone.identifier) 21->108 28 B90.exe 43 21->28         started        32 B219.exe 21->32         started        file8 signatures9 process10 file11 78 C:\Windows \System32\WINMM.dll, PE32+ 28->78 dropped 80 C:\Windows \System32\winSAT.exe, PE32+ 28->80 dropped 130 Multi AV Scanner detection for dropped file 28->130 132 Detected unpacking (overwrites its own PE header) 28->132 134 Machine Learning detection for dropped file 28->134 140 5 other signatures 28->140 34 winSAT.exe 1 28->34         started        36 winSAT.exe 28->36         started        136 Antivirus detection for dropped file 32->136 138 Contains functionality to infect the boot sector 32->138 38 WerFault.exe 21 32->38         started        signatures12 process13 process14 40 B90.exe 83 34->40         started        44 conhost.exe 34->44         started        file15 74 C:\Windows\System\svchost.exe, PE32+ 40->74 dropped 76 C:\Windows\System\dc.exe, PE32 40->76 dropped 110 Drops executables to the windows directory (C:\Windows) and starts them 40->110 112 Adds a directory exclusion to Windows Defender 40->112 46 dc.exe 40->46         started        50 netsh.exe 40->50         started        52 netsh.exe 40->52         started        54 2 other processes 40->54 signatures16 process17 file18 82 C:\Windows\System32behaviorgraphroupPolicy\gpt.ini, ASCII 46->82 dropped 142 Multi AV Scanner detection for dropped file 46->142 144 Found stalling execution ending in API Sleep call 46->144 146 Allocates memory in foreign processes 46->146 148 2 other signatures 46->148 56 dc.exe 46->56         started        58 conhost.exe 50->58         started        60 conhost.exe 52->60         started        62 conhost.exe 54->62         started        64 conhost.exe 54->64         started        signatures19 process20
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4fefc8e8a7c832d9d59f52fa3cdf766644485021be3e91499d57c8e0248c1bd6
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4fefc8e8a7c832d9d59f52fa3cdf766644485021be3e91499d57c8e0248c1bd6/
Threat name:
Win32.Trojan.Smokeloader
Create hunting rule
Status:
Malicious
First seen:
2024-01-25 04:05:15 UTC
File Type:
PE (Exe)
Extracted files:
38
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j7x4r2fhzazntvm7kl5dzx3wmzcequbbxy7jcsm5k7eoajemdpla._file
Verdict:
malicious
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:smokeloader botnet:pub1 backdoor trojan
Link:
https://tria.ge/reports/240126-qyh54agcbn/
Behaviour
Checks SCSI registry key(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Uses Task Scheduler COM API
Deletes itself
SmokeLoader
Malware Config
C2 Extraction:
http://gxutc2c.com/tmp/index.php
http://proekt8.ru/tmp/index.php
http://mth.com.ua/tmp/index.php
http://pirateking.online/tmp/index.php
http://piratia.pw/tmp/index.php
http://go-piratia.ru/tmp/index.php
Unpacked files
SH256 hash:
ba2abe6e3486f21ddd1f30f96783879e086c3589a5fb8e12d925a3f994a91f62
MD5 hash:
137ced7ac62db40c3b2ea3661536d5ed
SHA1 hash:
e9a2554b90911985b4be4fb924e7290986818f02
Detections:
SmokeLoaderStage2
Create hunting rule
win_smokeloader_a2
Create hunting rule
Link:
https://www.unpac.me/results/80c5adb1-e8bd-4bc8-a1ba-6579c60092f7/
Parent samples :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 hash:
4fefc8e8a7c832d9d59f52fa3cdf766644485021be3e91499d57c8e0248c1bd6
MD5 hash:
29c8fe3fe1b641a41966ff4886ca5020
SHA1 hash:
999680364c32d44c1ceb03c41c988e044f0f3948
Link:
https://www.unpac.me/results/80c5adb1-e8bd-4bc8-a1ba-6579c60092f7/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4fefc8e8a7c8/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4fefc8e8a7c832d9d59f52fa3cdf766644485021be3e91499d57c8e0248c1bd6

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:Windows_Trojan_Smokeloader_3687686f
Create hunting rule
Author:Elastic Security

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Smoke Loader

Executable exe 4fefc8e8a7c832d9d59f52fa3cdf766644485021be3e91499d57c8e0248c1bd6

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2749336/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/473036/

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