MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5d3b92d36198035df9370027e3e1e269f9757c4006a1b4eda2dd5575caa4d24. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
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SHA256 hash: b5d3b92d36198035df9370027e3e1e269f9757c4006a1b4eda2dd5575caa4d24
SHA3-384 hash: 3c10c41d0c5976664828d1a7e5768fd9468a118b31f6feb14137b01de0ad5a98c0ff3a8ef03a71544ffbb071d8f19b53
SHA1 hash: 50a52ca7cb848e121b7bb712709d166d00db72df
MD5 hash: 7bf9bc7b539ef9b9b16e4617075a4093
humanhash: item-fish-one-vegan
File name:7bf9bc7b539ef9b9b16e4617075a4093.exe
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:24'576 bytes
First seen:2023-02-08 18:48:30 UTC
Last seen:2023-02-08 20:30:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 96:i8p3jFpU/a5me4xn0bGkCNiRB4e3T3eb1MnMMKXTMMVzNt:iiFpMUm/n6rCFd
Threatray 15'708 similar samples on MalwareBazaar
TLSH T121B2DC0263A8D6B9FC133E749CA717714BBAADCA88329FAF8C5079DABC78341C515710
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 72690d69690d6972 (8 x AgentTesla, 6 x Smoke Loader, 2 x PureCrypter)
Reporter abuse_ch
Tags:exe Smoke Loader

Intelligence

File Origin
# of uploads :
2
# of downloads :
176
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
7bf9bc7b539ef9b9b16e4617075a4093.exe
Verdict:
No threats detected
Analysis date:
2023-02-08 19:36:23 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c72324f4-f38c-4333-9cbb-596f594f308c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/362217/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.65404701.19095.2903.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
80%
Tags:
packed
Link:
https://www.filescan.io/uploads/63e3eea2d68ac683b34b0632/reports/b3ab8568-e499-42a1-bcd4-5a8e30b5cb17/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/b5d3b92d36198035df9370027e3e1e269f9757c4006a1b4eda2dd5575caa4d24
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/4a4593ce-ee48-445e-92bb-a18989129f2b
Result
Threat name:
SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1169649
Signature
.NET source code contains potential unpacker
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
Encrypted powershell cmdline option found
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
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 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 harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 802428 Sample: 2WFDOtNBYI.exe Startdate: 09/02/2023 Architecture: WINDOWS Score: 100 110 Snort IDS alert for network traffic 2->110 112 Malicious sample detected (through community Yara rule) 2->112 114 Antivirus detection for URL or domain 2->114 116 6 other signatures 2->116 10 2WFDOtNBYI.exe 16 7 2->10         started        15 idfatsi 2->15         started        process3 dnsIp4 90 flordecor.sk 163.172.102.204, 443, 49713, 49714 OnlineSASFR United Kingdom 10->90 92 www.flordecor.sk 10->92 64 C:\Users\user\AppData\Roaming\...\Mhzrqb.exe, PE32 10->64 dropped 66 C:\Users\user\...\Mhzrqb.exe:Zone.Identifier, ASCII 10->66 dropped 68 C:\Users\user\AppData\...\2WFDOtNBYI.exe.log, ASCII 10->68 dropped 134 Encrypted powershell cmdline option found 10->134 136 Injects a PE file into a foreign processes 10->136 17 2WFDOtNBYI.exe 10->17         started        20 powershell.exe 16 10->20         started        22 2WFDOtNBYI.exe 10->22         started        24 2WFDOtNBYI.exe 10->24         started        94 www.flordecor.sk 15->94 96 192.168.2.1 unknown unknown 15->96 138 Multi AV Scanner detection for dropped file 15->138 140 Machine Learning detection for dropped file 15->140 26 powershell.exe 15->26         started        file5 signatures6 process7 signatures8 102 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 17->102 104 Maps a DLL or memory area into another process 17->104 106 Checks if the current machine is a virtual machine (disk enumeration) 17->106 108 Creates a thread in another existing process (thread injection) 17->108 28 explorer.exe 5 7 17->28 injected 33 conhost.exe 20->33         started        35 conhost.exe 26->35         started        process9 dnsIp10 98 alpatrik.com 45.81.39.147, 49733, 49734, 49735 LVLT-10753US United States 28->98 100 cletonmy.com 172.105.103.207, 49728, 80 LINODE-APLinodeLLCUS United States 28->100 70 C:\Users\user\AppData\Roaming\idfatsi, PE32 28->70 dropped 72 C:\Users\user\AppData\Local\Temp\446C.exe, PE32 28->72 dropped 74 C:\Users\user\...\idfatsi:Zone.Identifier, ASCII 28->74 dropped 142 System process connects to network (likely due to code injection or exploit) 28->142 144 Benign windows process drops PE files 28->144 146 Injects code into the Windows Explorer (explorer.exe) 28->146 148 3 other signatures 28->148 37 Mhzrqb.exe 14 4 28->37         started        41 Mhzrqb.exe 28->41         started        43 explorer.exe 28->43         started        45 6 other processes 28->45 file11 signatures12 process13 dnsIp14 76 www.flordecor.sk 37->76 78 flordecor.sk 37->78 118 Multi AV Scanner detection for dropped file 37->118 120 Machine Learning detection for dropped file 37->120 122 Encrypted powershell cmdline option found 37->122 47 Mhzrqb.exe 37->47         started        50 powershell.exe 13 37->50         started        80 www.flordecor.sk 41->80 82 flordecor.sk 41->82 124 Injects a PE file into a foreign processes 41->124 52 Mhzrqb.exe 41->52         started        54 powershell.exe 41->54         started        84 alpatrik.com 43->84 126 System process connects to network (likely due to code injection or exploit) 43->126 128 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 43->128 130 Tries to steal Mail credentials (via file / registry access) 43->130 132 Tries to harvest and steal browser information (history, passwords, etc) 43->132 86 www.flordecor.sk 45->86 88 flordecor.sk 45->88 56 powershell.exe 45->56         started        signatures15 process16 signatures17 150 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 47->150 152 Maps a DLL or memory area into another process 47->152 154 Checks if the current machine is a virtual machine (disk enumeration) 47->154 58 conhost.exe 50->58         started        156 Creates a thread in another existing process (thread injection) 52->156 60 conhost.exe 54->60         started        62 conhost.exe 56->62         started        process18
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b5d3b92d36198035df9370027e3e1e269f9757c4006a1b4eda2dd5575caa4d24/
Threat name:
Win32.Trojan.Bsymem
Create hunting rule
Status:
Malicious
First seen:
2023-02-08 01:22:58 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wxj3sljwdgadlx4toabh4pq6e2pzov6eabvbwtw2fxkvoxfkjusa._file
Verdict:
malicious
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d1d6cb926e13808764271dbc10680e34ab3665997731a8b650c6e8fa27a24097
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edd4bdbdd4718c8e28c0e35043c199a4beed017857aa8add3d3079e7ffdc5b4d
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ffbd7d675bcd4f230a06234d3d6b0121ed728e98ed60127c6bada7e1d4c1afba
Smoke Loader
+ 15'698 additional samples on MalwareBazaar
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:smokeloader backdoor collection persistence trojan
Link:
https://tria.ge/reports/230208-xgcejsdf91/
Behaviour
Checks SCSI registry key(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Detects Smokeloader packer
SmokeLoader
Unpacked files
SH256 hash:
b5d3b92d36198035df9370027e3e1e269f9757c4006a1b4eda2dd5575caa4d24
MD5 hash:
7bf9bc7b539ef9b9b16e4617075a4093
SHA1 hash:
50a52ca7cb848e121b7bb712709d166d00db72df
Link:
https://www.unpac.me/results/eb51fca8-bfd2-45ba-8bc5-5ff3094e4a94/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b5d3b92d3619/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/b5d3b92d36198035df9370027e3e1e269f9757c4006a1b4eda2dd5575caa4d24

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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 b5d3b92d36198035df9370027e3e1e269f9757c4006a1b4eda2dd5575caa4d24

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2532852/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/362217/

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