MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b4f8b12e45dcecfd72eadf5e55e8e1cbd69951ce3d3f5e17c9f5a160350d896f. 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
Threat unknown
Vendor detections: 11
| SHA256 hash: | b4f8b12e45dcecfd72eadf5e55e8e1cbd69951ce3d3f5e17c9f5a160350d896f |
|---|---|
| SHA3-384 hash: | 41f50d0dac3b479765adf64fdf62cc080bdfb0961c462af95a4b8f3c822013a20217f748b2c24edbfa55fa7ba391f3ee |
| SHA1 hash: | 1e11e0d17031b4bbb513a0307632426c3f256ad1 |
| MD5 hash: | 1b0b03ed015e7e920f5ef85a63ea6040 |
| humanhash: | hawaii-missouri-nine-cat |
| File name: | fxETk.exe |
| Download: | download sample |
| File size: | 3'841'696 bytes |
| First seen: | 2026-05-14 23:46:57 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | d42595b695fc008ef2c56aabd8efd68e (349 x Vidar, 93 x Stealc, 92 x Rhadamanthys) |
| ssdeep | 49152:8coMAixvrzXT6PfV08i+1vJVWDcyc0VSc:84bLTh+1LySc |
| TLSH | T1A7064B07E852C8F5D095D93DC97651926A21BCACDB303BDB2E40AAB02F357D0EB75389 |
| 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 |
| dhash icon | 33d0dcf4f0f0500f |
| Reporter |  aachum |
| Tags: | 95-85-236-201 dropped-by-Remus exe fiinterchillers-com signed |
Code Signing Certificate
| Organisation: | textranch.com |
|---|---|
| Issuer: | Amazon RSA 2048 M04 |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2025-08-30T00:00:00Z |
| Valid to: | 2026-09-28T23:59:59Z |
| Serial number: | 0c2a27621fd64b52a76c95ba0e510b80 |
| Intelligence: | 8 malware samples on MalwareBazaar are signed with this code signing certificate |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | b3090250be90087e5a88f4d4a3d324d5becac1f47cb27433ef1dc965e5b6f022 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
111
Origin country :
ESVendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
http://cloudsaze.com/file/16019d0
Verdict:
Malicious activity
Analysis date:
2026-05-14 16:34:09 UTC
Tags:
downloadassistant adware stealer remus inno installer delphi neoreklami loader golang raccoonclipper
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Detection(s):
Verdict:
Malicious
Score:
90.2%
Tags:
injection obfusc crypt
Result
Verdict:
Clean
Maliciousness:
Behaviour
Using the Windows Management Instrumentation requests
Connection attempt
Sending a custom TCP request
Creating a file
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
adaptive-context anti-vm crypt golang signed
Verdict:
Malicious
Labled as:
Trojan.Generic
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-05-14T19:08:00Z UTC
Last seen:
2026-05-15T01:44:00Z UTC
Hits:
~100
Detections:
Backdoor.Win64.Gsb.sb Trojan.Win64.Agent.sb Backdoor.Win64.Gsb.ayq
Verdict:
Suspicious
Result
Threat name:
n/a
Detection:
malicious
Classification:
spyw.evad.mine
Score:
92 / 100
Signature
Contains functionality to registers a callback to get notified when the system is suspended or resumed (often done by Miners)
Creates a thread in another existing process (thread injection)
Detected unpacking (creates a PE file in dynamic memory)
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Potentially malicious time measurement code found
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Tries to harvest and steal browser information (history, passwords, etc)
Writes to foreign memory regions
Behaviour
Behavior Graph:
Score:
91%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Verdict:
Malicious
Threat:
Backdoor.Win64.Gsb
Threat name:
Win64.Trojan.Generic
Status:
Suspicious
First seen:
2026-05-14 22:07:04 UTC
File Type:
PE+ (Exe)
Extracted files:
4
AV detection:
10 of 24 (41.67%)
Threat level:
5/5
Detection(s):
Suspicious file
Gathering data
Unpacked files
SH256 hash:
b4f8b12e45dcecfd72eadf5e55e8e1cbd69951ce3d3f5e17c9f5a160350d896f
MD5 hash:
1b0b03ed015e7e920f5ef85a63ea6040
SHA1 hash:
1e11e0d17031b4bbb513a0307632426c3f256ad1
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
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 |
|---|---|
| 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 |
|---|---|
| Author: | DiegoAnalytics |
| Description: | Detects attempts to inject code into another process across PE, ELF, Mach-O binaries |
| Rule name: | DebuggerException__SetConsoleCtrl |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DetectGoMethodSignatures |
|---|---|
| Author: | Wyatt Tauber |
| Description: | Detects Go method signatures in unpacked Go binaries |
| Rule name: | GoBinTest |
|---|
| Rule name: | golang |
|---|
| Rule name: | Golangmalware |
|---|---|
| Author: | Dhanunjaya |
| Description: | Malware in Golang |
| Rule name: | golang_binary_string |
|---|---|
| Description: | Golang strings present |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | golang_duffcopy_amd64 |
|---|
| Rule name: | Golang_Find_CSC846 |
|---|---|
| Author: | Ashar Siddiqui |
| Description: | Find Go Signatuers |
| Rule name: | Golang_Find_CSC846_Simple |
|---|---|
| Author: | Ashar Siddiqui |
| Description: | Find Go Signatuers |
| Rule name: | HiveRansomware |
|---|---|
| Author: | Dhanunjaya |
| Description: | Yara Rule To Detect Hive V4 Ransomware |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | ProgramLanguage_Golang |
|---|---|
| Author: | albertzsigovits |
| Description: | Application written in Golang programming language |
| Rule name: | SEH__vectored |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | Suspicious_Golang_Binary |
|---|---|
| Author: | Tim Machac |
| Description: | Triage: Golang-compiled binary with suspicious OS/persistence/network strings (not family-specific) |
| Rule name: | Sus_CMD_Powershell_Usage |
|---|---|
| Author: | XiAnzheng |
| Description: | May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP) |
| Rule name: | ThreadControl__Context |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
exe b4f8b12e45dcecfd72eadf5e55e8e1cbd69951ce3d3f5e17c9f5a160350d896f
(this sample)
Dropped by
RemusStealer
Delivery method
Distributed via web download
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