MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b1bf0f6717341cb605ebf48e85805282b77e5a3d610f211b90e4ec726b448331. 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


Glupteba


Vendor detections: 14


Intelligence 14 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b1bf0f6717341cb605ebf48e85805282b77e5a3d610f211b90e4ec726b448331
SHA3-384 hash: c6e15ea586b99d30c883f6175d1d7f4804cd4f78c0aedca1a2e4f6f75a8f1581ef8e4ae5dfb85ce2eea4bf164201c1cd
SHA1 hash: b33a15b47c3b99c65f2277562a928bf9ce9dabf7
MD5 hash: 81f2e982687c695ee0bbadf147feca3b
humanhash: violet-failed-wyoming-lemon
File name:81f2e982687c695ee0bbadf147feca3b.exe
Download: download sample
Signature Glupteba
Create hunting rule
File size:392'888 bytes
First seen:2024-04-15 06:21:34 UTC
Last seen:2024-04-15 07:24:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 6144:kz00wubhcFv7g9X7wkDStegoIG2sJnuhLvdHVpHBm/F0kpJVdVpftj7XfLT:kzhBqFv7g9kBVG2ACLvd1pBmN3pJ5plX
Threatray 3 similar samples on MalwareBazaar
TLSH T1EF842202EBF5A01BFEF75B3488FA8540067FB9A751A5E33D15D4E1280A717A6C4E2B43
TrID 44.4% (.EXE) Win64 Executable (generic) (10523/12/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Reporter abuse_ch
Tags:exe Glupteba

Intelligence

File Origin
# of uploads :
2
# of downloads :
328
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
a02549a343b100949c013f1c84927136e8c8f6e23110ae1d025c9733d5ad712f.exe
Verdict:
Malicious activity
Analysis date:
2024-04-15 05:44:59 UTC
Tags:
amadey botnet stealer lumma loader redline opendir gcleaner stealc evasion risepro privateloader
Link:
https://app.any.run/tasks/868dcbd9-3fa6-4457-bc47-74c8e6c3c844

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

Behaviour
Searching for the window
Launching a process
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request to an infection source
Sending an HTTP GET request
Creating a file
Creating a process from a recently created file
Creating a process with a hidden window
Connection attempt to an infection source
Query of malicious DNS domain
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Malicious
Labled as:
MSIL/Kryptik_AGeneric.CEZ trojan
Link:
https://www.hybrid-analysis.com/sample/b1bf0f6717341cb605ebf48e85805282b77e5a3d610f211b90e4ec726b448331
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.
Malware family:
Glupteba
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c6fbfd13-083a-4cd0-8bab-7c98da3574a9
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1425965
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
Creates HTML files with .exe extension (expired dropper behavior)
Drops script or batch files to the startup folder
Found direct / indirect Syscall (likely to bypass EDR)
Hides threads from debuggers
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Query firmware table information (likely to detect VMs)
Sample uses process hollowing technique
Sigma detected: Drops script at startup location
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1425965 Sample: jhwTchfZRO.exe Startdate: 15/04/2024 Architecture: WINDOWS Score: 100 96 Antivirus detection for dropped file 2->96 98 Multi AV Scanner detection for dropped file 2->98 100 Multi AV Scanner detection for submitted file 2->100 102 5 other signatures 2->102 8 jhwTchfZRO.exe 3 2->8         started        11 cmd.exe 2->11         started        13 cmd.exe 2->13         started        process3 signatures4 104 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->104 106 Writes to foreign memory regions 8->106 108 Allocates memory in foreign processes 8->108 110 2 other signatures 8->110 15 AddInProcess32.exe 15 165 8->15         started        20 WerFault.exe 19 16 8->20         started        22 conhost.exe 8->22         started        30 3 other processes 8->30 24 conhost.exe 11->24         started        26 cGee0prz9zs6n2UNGA6W00Yy.exe 11->26         started        28 conhost.exe 13->28         started        process5 dnsIp6 72 107.167.110.211 OPERASOFTWAREUS United States 15->72 74 185.172.128.59 NADYMSS-ASRU Russian Federation 15->74 78 11 other IPs or domains 15->78 48 C:\Users\...\znA9H1B3vCgwtGlQhJCzP389.exe, PE32 15->48 dropped 50 C:\Users\...\xgFpPWWFAEG2D2aPMUsDHpxU.exe, MS-DOS 15->50 dropped 52 C:\Users\...\vkikO2eSkcZBCzBsxvdpyTpm.exe, PE32 15->52 dropped 54 141 other malicious files 15->54 dropped 92 Drops script or batch files to the startup folder 15->92 94 Creates HTML files with .exe extension (expired dropper behavior) 15->94 32 hADrB6HuCGBYdmdMKcRTyYhU.exe 15->32         started        35 Muys2p1ctT1qHpj2A1H9IXpy.exe 15->35         started        37 VSLN8gNwBpysZVMYMorZtkVs.exe 15->37         started        39 21 other processes 15->39 76 20.42.65.92 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 20->76 file7 signatures8 process9 dnsIp10 80 Query firmware table information (likely to detect VMs) 32->80 82 Tries to detect sandboxes and other dynamic analysis tools (window names) 32->82 84 Hides threads from debuggers 32->84 86 Found direct / indirect Syscall (likely to bypass EDR) 35->86 88 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 35->88 90 Tries to detect sandboxes / dynamic malware analysis system (registry check) 37->90 66 107.167.110.217 OPERASOFTWAREUS United States 39->66 68 107.167.110.218 OPERASOFTWAREUS United States 39->68 70 5 other IPs or domains 39->70 56 C:\Users\user\AppData\Local\Temp\u5c0.1.exe, PE32 39->56 dropped 58 C:\Users\user\AppData\Local\Temp\u5c0.0.exe, PE32 39->58 dropped 60 Opera_installer_2404150623437754368.dll, PE32 39->60 dropped 62 7 other malicious files 39->62 dropped 43 GUKICIzJXIMcmlp6Uox1vOan.exe 39->43         started        46 u5c0.0.exe 39->46         started        file11 signatures12 process13 file14 64 Opera_installer_2404150623367472572.dll, PE32 43->64 dropped
Score:
73%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b1bf0f6717341cb605ebf48e85805282b77e5a3d610f211b90e4ec726b448331
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b1bf0f6717341cb605ebf48e85805282b77e5a3d610f211b90e4ec726b448331/
Threat name:
ByteCode-MSIL.Trojan.Stealc
Create hunting rule
Status:
Malicious
First seen:
2024-04-14 08:41:09 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
1
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wg7q6zyxgqolmbpl6shilacsqk3x4wr5mehscg4q4twhe22eqmyq._file
Verdict:
malicious
Similar samples:
56768dc2486a0eadfb82e3df6436434d1b6502d542fe6c41e2b52aae948b140f
Glupteba
d0ef5d7c8fa467cca0626b576f96dc86a58293b859aa5ddd4aa0ff1304427d04
Glupteba
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/240415-g4wtpsah7w/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Drops startup file
Unpacked files
SH256 hash:
b1bf0f6717341cb605ebf48e85805282b77e5a3d610f211b90e4ec726b448331
MD5 hash:
81f2e982687c695ee0bbadf147feca3b
SHA1 hash:
b33a15b47c3b99c65f2277562a928bf9ce9dabf7
Link:
https://www.unpac.me/results/7bf005db-f75d-478b-8001-cf5e2de4c43e/
Malware family:
Glupteba
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b1bf0f671734/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Glupteba
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b1bf0f6717341cb605ebf48e85805282b77e5a3d610f211b90e4ec726b448331

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:INDICATOR_SUSPICIOUS_EXE_RawPaste_URL
Create hunting rule
Author:ditekSHen
Description:Detects executables (downlaoders) containing URLs to raw contents of a paste
Rule name:MSIL_TinyDownloader_Generic
Create hunting rule
Author:albertzsigovits
Description:Detects small-sized dotNET downloaders
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
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

Glupteba

Executable exe b1bf0f6717341cb605ebf48e85805282b77e5a3d610f211b90e4ec726b448331

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2812590/
  
Delivery method
Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments