MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4841be428d00d29ab878fda23850d948bc2d12eefb31621c0272e301d95bbc7f. 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: 13


Intelligence 13 IOCs YARA 8 File information Comments 1

SHA256 hash: 4841be428d00d29ab878fda23850d948bc2d12eefb31621c0272e301d95bbc7f
SHA3-384 hash: 80ab724088061df6d85e49690d7c2b274ec428cc26330609915dbee3968d9df31ad19db72d576493fb84f9e53b6f80de
SHA1 hash: b718a320f4482e397719552f098a67b883c88b28
MD5 hash: 766801c28e2bba5d4587ee22941b6528
humanhash: december-iowa-tango-stairway
File name:ДОГОВIР_ПОСТАВКА_11224_Вiд_12_01_2024p.PDF.exe
Download: download sample
Signature Smoke Loader
File size:352'864 bytes
First seen:2024-01-29 09:41:26 UTC
Last seen:2024-01-29 11:35:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash cd132b2f89f79b212f0c4061c0a4f036 (2 x Smoke Loader, 1 x Glupteba, 1 x Stealc)
ssdeep 6144:Rg0i18FzH1EdOesCdFGSRacbvJNLW9Y3fXkAF:Op18FzH+dOevRaclNDfUAF
Threatray 1'837 similar samples on MalwareBazaar
TLSH T1FC748D5037ECC4F1E2B719358935C7A50B3BB8726E31A68F7AD16A3A5E347C1862131B
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon ecce889ca698e8f0 (2 x Smoke Loader)
Reporter angel11VR
Tags:exe signed Smoke Loader SmokeLoader

Code Signing Certificate

Organisation:Microsoft Windows Production PCA 2011
Issuer:Microsoft Windows Production PCA 2011
Algorithm:sha256WithRSAEncryption
Valid from:2023-09-23T00:00:00Z
Valid to:2028-09-23T00:00:00Z
Serial number: 08fe4deb33adccd2
Intelligence: 4 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: 60f9ae514684c36bd4a08861ebcb83c00073955ebe44ba25226fa878a68d2d8e
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
2
# of downloads :
386
Origin country :
US US
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
4841be428d00d29ab878fda23850d948bc2d12eefb31621c0272e301d95bbc7f.exe
Verdict:
Malicious activity
Analysis date:
2024-01-29 10:10:48 UTC
Tags:
loader smoke smokeloader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Query of malicious DNS domain
Unauthorized injection to a system process
Enabling autorun by creating a file
Sending an HTTP POST request to an infection source
Result
Threat name:
SmokeLoader
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
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)
Creates a thread in another existing process (thread injection)
Deletes itself after installation
Detected unpacking (changes PE section rights)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
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
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 an obfuscated file name to hide its real file extension (double extension)
Yara detected SmokeLoader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1381500 Sample: 024p.PDF.exe Startdate: 26/01/2024 Architecture: WINDOWS Score: 100 21 kitfishstore.ru 2->21 23 homemademagazine.ru 2->23 27 Snort IDS alert for network traffic 2->27 29 Multi AV Scanner detection for domain / URL 2->29 31 Found malware configuration 2->31 33 9 other signatures 2->33 7 024p.PDF.exe 2->7         started        10 gfhrjit 2->10         started        signatures3 process4 signatures5 35 Detected unpacking (changes PE section rights) 7->35 37 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 7->37 39 Maps a DLL or memory area into another process 7->39 49 2 other signatures 7->49 12 explorer.exe 6 3 7->12 injected 41 Antivirus detection for dropped file 10->41 43 Multi AV Scanner detection for dropped file 10->43 45 Machine Learning detection for dropped file 10->45 47 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->47 process6 dnsIp7 25 kitfishstore.ru 193.233.193.14, 49736, 49737, 49739 FREE-NET-ASFREEnetEU Russian Federation 12->25 17 C:\Users\user\AppData\Roaming\gfhrjit, PE32 12->17 dropped 19 C:\Users\user\...\gfhrjit:Zone.Identifier, ASCII 12->19 dropped 51 System process connects to network (likely due to code injection or exploit) 12->51 53 Benign windows process drops PE files 12->53 55 Deletes itself after installation 12->55 57 Hides that the sample has been downloaded from the Internet (zone.identifier) 12->57 file8 signatures9
Threat name:
Win32.Trojan.SmokeLoader
Status:
Malicious
First seen:
2024-01-26 12:40:16 UTC
File Type:
PE (Exe)
Extracted files:
56
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Result
Malware family:
smokeloader
Score:
  10/10
Tags:
family:smokeloader backdoor trojan
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://kitfishstore.ru/index.php
http://homemademagazine.ru/index.php
Unpacked files
SH256 hash:
e07b4b4f01f3a1409719cb0ca30c2044d4fd74402e705b833a2459ef7b792680
MD5 hash:
f44ef52a8ea797501328986afb8df6b4
SHA1 hash:
866c53886b000834160b9fbcfc0f3005b51a678f
Detections:
SmokeLoaderStage2 win_smokeloader_a2
SH256 hash:
4841be428d00d29ab878fda23850d948bc2d12eefb31621c0272e301d95bbc7f
MD5 hash:
766801c28e2bba5d4587ee22941b6528
SHA1 hash:
b718a320f4482e397719552f098a67b883c88b28
Please note that we are no longer able to provide a coverage score for Virus Total.

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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits
Rule name:Windows_Trojan_Smokeloader_3687686f
Author:Elastic Security

File information


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

Malspam

Smoke Loader

Executable exe 4841be428d00d29ab878fda23850d948bc2d12eefb31621c0272e301d95bbc7f

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments



Avatar
commented on 2024-01-29 10:00:23 UTC

#smokeloader #signed #7z #exe
email attach .7z (PWD) > exe1 and exe2 > C2
IOC`s
https://pastebin.com/WYsm7Jyk