MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3fbcfd775b7c9bfc5b58f5df13eb8fbeb4844d98756f8fca41b63f060ae5132. 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: 16


Intelligence 16 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b3fbcfd775b7c9bfc5b58f5df13eb8fbeb4844d98756f8fca41b63f060ae5132
SHA3-384 hash: 146f9054754aeb03c38f1cf69fac03543f7feaf7d1728201f017f3f21814298e82567b988208c2521f420d0bf09ff4f3
SHA1 hash: 92ea36730fa1f19300a27ebbb4d1359e7b8a16de
MD5 hash: a29c587c678826f4a44cf6a2a78599f1
humanhash: two-cup-venus-maine
File name:01885599.exe
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:290'304 bytes
First seen:2023-05-28 08:41:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 2d9ed3462f8a74bfd1231e2e9de56b43 (2 x Smoke Loader, 2 x GCleaner, 1 x RedLineStealer)
ssdeep 3072:X6JOiohJ19MbvuzdRE45nLtn5gFTti91:yOiY9T10FTti
Threatray 6'095 similar samples on MalwareBazaar
TLSH T1F154185382A13C55EA668B768E1FC6F8761EB6718F5D3769321CBA1F08B00B2D173B11
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 132b0303030b0302 (1 x Smoke Loader)
Reporter Neiki
Tags:Smoke Loader

Intelligence

File Origin
# of uploads :
1
# of downloads :
109
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
smoke
Create hunting rule
ID:
1
File name:
01885599.exe
Verdict:
Malicious activity
Analysis date:
2023-05-28 08:42:42 UTC
Tags:
loader smoke trojan
Link:
https://app.any.run/tasks/582ec44b-ae32-4fcc-b192-055e517a7efb

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/392751/
Detection(s):
Win.Packer.pkr_ce1a-9980177-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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
Sending a custom TCP request
Creating a file in the %temp% directory
Creating a process from a recently created file
Searching for synchronization primitives
Sending an HTTP POST request
Creating a file
Reading critical registry keys
Sending a TCP request to an infection source
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a recently created process
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
Malware family:
n/a
Score:
  9/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/88309/overview
Behaviour
MalwareBazaar
MeasuringTime
CPUID_Instruction
SystemUptime
CheckCmdLine
EvasionQueryPerformanceCounter
EvasionGetTickCount
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/647313db7e7618940cb6a5f3/reports/315af992-5dc6-4d72-a876-42ef32210c40/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b3fbcfd775b7c9bfc5b58f5df13eb8fbeb4844d98756f8fca41b63f060ae5132
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Malicious Packer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9ebb25fd-3139-4c7b-bb84-222e0fdb8420
Result
Threat name:
SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1243989
Signature
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 inject code into remote processes
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)
Injects a PE file into a foreign processes
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
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)
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 876999 Sample: 01885599.exe Startdate: 28/05/2023 Architecture: WINDOWS Score: 100 30 Multi AV Scanner detection for domain / URL 2->30 32 Found malware configuration 2->32 34 Malicious sample detected (through community Yara rule) 2->34 36 6 other signatures 2->36 7 01885599.exe 2->7         started        10 vbjjhwi 2->10         started        process3 signatures4 46 Detected unpacking (changes PE section rights) 7->46 48 Contains functionality to inject code into remote processes 7->48 50 Injects a PE file into a foreign processes 7->50 12 01885599.exe 7->12         started        52 Multi AV Scanner detection for dropped file 10->52 54 Machine Learning detection for dropped file 10->54 15 vbjjhwi 10->15         started        process5 signatures6 56 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 12->56 58 Maps a DLL or memory area into another process 12->58 60 Checks if the current machine is a virtual machine (disk enumeration) 12->60 17 explorer.exe 2 3 12->17 injected 62 Creates a thread in another existing process (thread injection) 15->62 process7 dnsIp8 26 host-file-host6.com 194.50.153.68, 49684, 80 GAZ-IS-ASRU United Kingdom 17->26 28 host-host-file8.com 17->28 22 C:\Users\user\AppData\Roaming\vbjjhwi, PE32 17->22 dropped 24 C:\Users\user\...\vbjjhwi:Zone.Identifier, ASCII 17->24 dropped 38 System process connects to network (likely due to code injection or exploit) 17->38 40 Benign windows process drops PE files 17->40 42 Deletes itself after installation 17->42 44 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->44 file9 signatures10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b3fbcfd775b7c9bfc5b58f5df13eb8fbeb4844d98756f8fca41b63f060ae5132/
Threat name:
Win32.Trojan.Smokeloader
Create hunting rule
Status:
Malicious
First seen:
2023-05-28 08:42:05 UTC
File Type:
PE (Exe)
Extracted files:
52
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wp547v3vw7e37rnvr5o7cpvy7pvuqrgzq5lpr7fednr7ayfokeza._file
Verdict:
malicious
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Smoke Loader
+ 6'085 additional samples on MalwareBazaar
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:smokeloader botnet:pub1 backdoor trojan
Link:
https://tria.ge/reports/230528-kl1aysfb6v/
Behaviour
Checks SCSI registry key(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Suspicious use of SetThreadContext
SmokeLoader
Malware Config
C2 Extraction:
http://host-file-host6.com/
http://host-host-file8.com/
Gathering data
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b3fbcfd775b7/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/b3fbcfd775b7c9bfc5b58f5df13eb8fbeb4844d98756f8fca41b63f060ae5132

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:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/392751/

Comments