MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 da77b731f6573bb078499e5ca66b8985f4fd740e5995dbaa1bd5d611b262c411. 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: 12


Intelligence 12 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: da77b731f6573bb078499e5ca66b8985f4fd740e5995dbaa1bd5d611b262c411
SHA3-384 hash: d6a425ef030d75305716992ff37e5dee16ad823bee25fa89da2d51c07f74870487e78d3c3e5662b35d7d901633c172a1
SHA1 hash: 1315ad5d3b554f8169325da1d5c9f9395eff4b45
MD5 hash: e11e8fc84643fad8b9dec319b2848bfe
humanhash: alabama-delta-solar-aspen
File name:SOSTENER.bat
Download: download sample
File size:8'503 bytes
First seen:2026-03-17 16:13:26 UTC
Last seen:Never
File type:Batch (bat) bat
MIME type:text/x-msdos-batch
ssdeep 192:RHVimQu0RKFg4ygJoYR7CwtvVrjnSictIVQ0eD6Epgz4xH:Rc/uGCgtnYBCwvjl1su7zKH
TLSH T1A50220BCE6D7FCD0835A72C06AE9FAD712568A137A761A9CE1C914C10B54214FB7D60C
Magika batch
Reporter abuse_ch
Tags:bat

Intelligence

File Origin
# of uploads :
1
# of downloads :
60
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
SOSTENER.bat
Verdict:
Malicious activity
Analysis date:
2026-03-17 16:17:21 UTC
Tags:
loader reverseloader susp-powershell payload
Link:
https://app.any.run/tasks/173f1e66-3752-4198-bf26-4bc0a21b250a

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/57793/
Verdict:
Malicious
Score:
94.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69b97dda88c80c01586b47cf
Tags:
ransomware shell sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
DNS request
Connection attempt
Creating a process with a hidden window
Сreating synchronization primitives
Sending a custom TCP request
Connection attempt to an infection source
Query of malicious DNS domain
Unauthorized injection to a system process
Gathering data
Verdict:
Malicious
Labled as:
BAT/Obfuscated.AZ trojan
Link:
https://www.hybrid-analysis.com/sample/da77b731f6573bb078499e5ca66b8985f4fd740e5995dbaa1bd5d611b262c411
Verdict:
Malicious
File Type:
unix shell
Detections:
PDM:Trojan.Win32.Generic HEUR:Trojan.BAT.Alien.gen Trojan-Downloader.PowerShell.NanoShield.sb
Link:
https://opentip.kaspersky.com/da77b731f6573bb078499e5ca66b8985f4fd740e5995dbaa1bd5d611b262c411/results?tab=lookup
Result
Threat name:
RDPWrap Tool
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1885029
Signature
.NET source code contains process injector
.NET source code contains very large strings
.NET source code references suspicious native API functions
Contains functionality to capture screen (.Net source)
Contains functionality to hide user accounts
Contains functionality to log keystrokes (.Net Source)
Contains functionality to register a low level keyboard hook
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Net WebClient Casing Anomalies
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Powershell Decrypt And Execute Base64 Data
Sigma detected: Suspicious PowerShell IEX Execution Patterns
Suricata IDS alerts for network traffic
Suspicious powershell command line found
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Powershell decode and execute
Yara detected Powershell download and execute
Yara detected RDPWrap Tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1885029 Sample: SOSTENER.bat Startdate: 17/03/2026 Architecture: WINDOWS Score: 100 30 oficialrem.duckdns.org 2->30 32 shed.dual-low.part-0029.t-0009.t-msedge.net 2->32 34 9 other IPs or domains 2->34 44 Suricata IDS alerts for network traffic 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Multi AV Scanner detection for submitted file 2->48 52 15 other signatures 2->52 9 cmd.exe 1 2->9         started        12 svchost.exe 1 1 2->12         started        signatures3 50 Uses dynamic DNS services 30->50 process4 dnsIp5 60 Suspicious powershell command line found 9->60 15 powershell.exe 12 9->15         started        18 conhost.exe 9->18         started        42 127.0.0.1 unknown unknown 12->42 signatures6 process7 signatures8 68 Suspicious powershell command line found 15->68 70 Found suspicious powershell code related to unpacking or dynamic code loading 15->70 20 powershell.exe 14 14 15->20         started        process9 dnsIp10 36 pastefy.app 104.21.49.12, 443, 49683 CLOUDFLARENETUS United States 20->36 38 gitlab.com 172.65.251.78, 443, 49684 CLOUDFLARENETUS United States 20->38 54 Contains functionality to hide user accounts 20->54 56 Writes to foreign memory regions 20->56 58 Injects a PE file into a foreign processes 20->58 24 MSBuild.exe 2 20->24         started        28 conhost.exe 20->28         started        signatures11 process12 dnsIp13 40 oficialrem.duckdns.org 186.169.78.134, 49686, 49691, 49692 COLOMBIATELECOMUNICACIONESSAESPCO Colombia 24->40 62 Contains functionality to hide user accounts 24->62 64 Contains functionality to register a low level keyboard hook 24->64 66 Installs a global keyboard hook 24->66 signatures14
Score:
97%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/da77b731f6573bb078499e5ca66b8985f4fd740e5995dbaa1bd5d611b262c411
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/da77b731f6573bb078499e5ca66b8985f4fd740e5995dbaa1bd5d611b262c411/
Verdict:
Malicious
Threat:
Trojan-Downloader.PowerShell.NanoShield
Link:
https://tip.neiki.dev/file/da77b731f6573bb078499e5ca66b8985f4fd740e5995dbaa1bd5d611b262c411
Threat name:
Script-BAT.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-03-17 01:15:08 UTC
File Type:
Text (Batch)
AV detection:
8 of 22 (36.36%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3j33ompwk453a6cjtzokm24jqx2p25aolgk5xkq32xlbdmtcyqiq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Link:
https://tria.ge/reports/260317-tprmnagx6l/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
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/da77b731f6573bb078499e5ca66b8985f4fd740e5995dbaa1bd5d611b262c411

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:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

File information

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

Web download

Batch (bat) bat da77b731f6573bb078499e5ca66b8985f4fd740e5995dbaa1bd5d611b262c411

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3787543/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/57793/

Comments