MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b66657df206db8db1a9068b544e20f8046fcecfe596c5c76479d2fe2fcca5a18. 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: 9


Intelligence 9 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b66657df206db8db1a9068b544e20f8046fcecfe596c5c76479d2fe2fcca5a18
SHA3-384 hash: 7e80f721749d86cc53f1292484cd47bef75dfe8391335e821a8f45a7cd027c4474c68c54362b85d70cd615ef3b2c6c69
SHA1 hash: d1efdf9381dabacb80536ee932cc3a216ee2988f
MD5 hash: 47a4d5edb393c9df0550fbaead5823a2
humanhash: lamp-low-quiet-india
File name:file
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:2'205'368 bytes
First seen:2026-04-27 22:39:20 UTC
Last seen:2026-04-28 08:03:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ebc247a77b4d4a804b261f97a1fd075c (91 x Vidar, 26 x Smoke Loader, 20 x RemusStealer)
ssdeep 49152:gxonAwkdEHyhwrm6aoQ/d8bG9dodnzJN/1Wc3M:gxEN8ermR+bGjM3Ix
TLSH T1F5A5494178D004FDC4ADB63289F276967B34B8480B3227D31E956A783E77BE15C76B0A
TrID 33.1% (.EXE) Win64 Executable (generic) (6522/11/2)
25.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
10.4% (.ICL) Windows Icons Library (generic) (2059/9)
10.3% (.EXE) OS/2 Executable (generic) (2029/13)
10.1% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter Bitsight
Tags:dropped-by-gcleaner exe f MIX4.file signed Smoke Loader

Code Signing Certificate

Organisation:www.aa.com
Issuer:Entrust OV TLS Issuing ECC CA 2
Algorithm:sha256WithRSAEncryption
Valid from:2026-04-10T00:00:00Z
Valid to:2026-10-25T23:59:59Z
Serial number: beb98612d532decc4e5098a264c43efd
Intelligence: 2 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: da849f7cd30af7dd1db70236933a6520cb4dbf0f3262c7e0346308474011b282
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform


Avatar
Bitsight
url: http://91.92.241.242/service

Intelligence

File Origin
# of uploads :
10
# of downloads :
207
Origin country :
US US
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-04-27 22:42:16 UTC
Tags:
golang
Link:
https://app.any.run/tasks/f841ca70-8e29-4169-8d8d-33b076c40393

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/63806/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/b66657df206db8db1a9068b544e20f8046fcecfe596c5c76479d2fe2fcca5a18
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-04-27T19:58:00Z UTC
Last seen:
2026-04-29T16:33:00Z UTC
Hits:
~100
Detections:
Backdoor.Win64.Gsb.sb Backdoor.Win64.Gsb.gen Trojan.Win64.Agent.sb PDM:Trojan.Win32.Generic Backdoor.Win64.Gsb.ada Backdoor.Agent.HTTP.C&C
Link:
https://opentip.kaspersky.com/b66657df206db8db1a9068b544e20f8046fcecfe596c5c76479d2fe2fcca5a18/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/f1804e1d-0be3-4e2b-8cc8-e08d4fdbfb8b
Score:
96%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b66657df206db8db1a9068b544e20f8046fcecfe596c5c76479d2fe2fcca5a18
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b66657df206db8db1a9068b544e20f8046fcecfe596c5c76479d2fe2fcca5a18/
Verdict:
Malicious
Threat:
Backdoor.Win64.Gsb
Link:
https://tip.neiki.dev/file/b66657df206db8db1a9068b544e20f8046fcecfe596c5c76479d2fe2fcca5a18
Threat name:
Win64.Trojan.Egairtigado
Create hunting rule
Status:
Malicious
First seen:
2026-04-27 22:40:50 UTC
File Type:
PE+ (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wztfpxzanw4nwguqnc2ujyqpqbdpz3h6lfwfy5shtux6f7gklima._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/260427-2k73vaet4n/
Unpacked files
SH256 hash:
b66657df206db8db1a9068b544e20f8046fcecfe596c5c76479d2fe2fcca5a18
MD5 hash:
47a4d5edb393c9df0550fbaead5823a2
SHA1 hash:
d1efdf9381dabacb80536ee932cc3a216ee2988f
Link:
https://www.unpac.me/results/14bbc78f-c1f9-417e-b49d-e91f5f4bc0d4/
Malware family:
RemusStealer
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b66657df206d/report/overview.html
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:command_and_control
Create hunting rule
Author:CD_R0M_
Description:This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectGoMethodSignatures
Create hunting rule
Author:Wyatt Tauber
Description:Detects Go method signatures in unpacked Go binaries
Rule name:GoBinTest
Create hunting rule
Rule name:golang
Create hunting rule
Rule name:Golangmalware
Create hunting rule
Author:Dhanunjaya
Description:Malware in Golang
Rule name:golang_binary_string
Create hunting rule
Description:Golang strings present
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Golang_Find_CSC846
Create hunting rule
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:Golang_Find_CSC846_Simple
Create hunting rule
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:HiveRansomware
Create hunting rule
Author:Dhanunjaya
Description:Yara Rule To Detect Hive V4 Ransomware
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:ProgramLanguage_Golang
Create hunting rule
Author:albertzsigovits
Description:Application written in Golang programming language
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Suspicious_Golang_Binary
Create hunting rule
Author:Tim Machac
Description:Triage: Golang-compiled binary with suspicious OS/persistence/network strings (not family-specific)
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:https://cyfare.net/

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 b66657df206db8db1a9068b544e20f8046fcecfe596c5c76479d2fe2fcca5a18

(this sample)

  
Dropped by
Gcleaner
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/63806/

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