MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 033a99b9bbd0893a8305dfebe5d7683ff9bf54518e4a6dbde3fa1e052f411340. 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


RemcosRAT


Vendor detections: 11


Intelligence 11 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 033a99b9bbd0893a8305dfebe5d7683ff9bf54518e4a6dbde3fa1e052f411340
SHA3-384 hash: 9b8ed1238473ef777953bf2b279ece97c543020e5d25215d0097809610c34609b1d1a8fe1ad3b5e04591bed1bfceef8c
SHA1 hash: b16901306f28b4a7b6566f7acc751fcb708aea61
MD5 hash: b04336d89aaa84a6cb8ffb8151d48474
humanhash: september-sweet-grey-enemy
File name:udarmning.vbs
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:85'088 bytes
First seen:2026-06-02 07:03:11 UTC
Last seen:2026-06-02 07:03:35 UTC
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 1536:zc4LsX85ED8aP3P+9ytPD10j/o8ZbkbGZ9QmSMU0nbRjeb:Y4LsX85mf+9yRqgLGAmpUyljeb
TLSH T11C832921DDE007BA5F4307BDBDA52A11D6BC8669022640FCF6D9230D600A57CFBBE66D
Magika vba
Reporter lowmal3
Tags:RemcosRAT vbs

Intelligence

File Origin
# of uploads :
2
# of downloads :
55
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/68767/
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a1e3eaca22676d7bfe4e722
Tags:
obfuscate xtreme sage
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm fingerprint ping
Link:
https://www.filescan.io/uploads/6a1e803a099ef368af15545b/reports/1c645541-8b34-4df3-86e9-aa2352034dd1/overview
Verdict:
Malicious
Labled as:
VBS/Agent.CUK
Link:
https://www.hybrid-analysis.com/sample/033a99b9bbd0893a8305dfebe5d7683ff9bf54518e4a6dbde3fa1e052f411340
Verdict:
Malicious
File Type:
vbs
First seen:
2026-06-01T21:20:00Z UTC
Last seen:
2026-06-02T04:02:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/033a99b9bbd0893a8305dfebe5d7683ff9bf54518e4a6dbde3fa1e052f411340/results?tab=lookup
Result
Threat name:
Remcos, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1921475
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to steal Internet Explorer form passwords
Detected Remcos RAT
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Obfuscated command line found
Sigma detected: Potential PowerShell Command Line Obfuscation
Sigma detected: Remcos
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Unusual module load detection (module proxying)
Uses ping.exe to check the status of other devices and networks
VBScript performs obfuscated calls to suspicious functions
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
WScript reads language and country specific registry keys (likely country aware script)
Wscript starts Powershell (via cmd or directly)
Yara detected GuLoader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1921475 Sample: udarmning.vbs Startdate: 02/06/2026 Architecture: WINDOWS Score: 100 47 Bera_6637.6637.6637.657e 2->47 49 drive.usercontent.google.com 2->49 51 drive.google.com 2->51 65 Found malware configuration 2->65 67 Malicious sample detected (through community Yara rule) 2->67 69 Multi AV Scanner detection for submitted file 2->69 71 9 other signatures 2->71 8 powershell.exe 18 2->8         started        11 wscript.exe 1 2->11         started        13 svchost.exe 1 1 2->13         started        signatures3 process4 dnsIp5 73 Writes to foreign memory regions 8->73 75 Found suspicious powershell code related to unpacking or dynamic code loading 8->75 77 Switches to a custom stack to bypass stack traces 8->77 16 backgroundTaskHost.exe 4 9 8->16         started        21 backgroundTaskHost.exe 8->21         started        23 conhost.exe 8->23         started        79 VBScript performs obfuscated calls to suspicious functions 11->79 81 Suspicious powershell command line found 11->81 83 Wscript starts Powershell (via cmd or directly) 11->83 85 5 other signatures 11->85 25 powershell.exe 14 16 11->25         started        27 PING.EXE 1 11->27         started        53 127.0.0.1 unknown unknown 13->53 signatures6 process7 dnsIp8 41 102.220.160.21, 2404, 49698, 49700 VPSDEDICATED-ASUS Nigeria 16->41 35 C:\Users\user\AppData\...\Login Data.tmp, SQLite 16->35 dropped 37 C:\Users\user\AppData\...\Login Data.tmp, SQLite 16->37 dropped 39 C:\Users\user\...\Login Data For Account.tmp, SQLite 16->39 dropped 55 Detected Remcos RAT 16->55 57 Tries to harvest and steal browser information (history, passwords, etc) 16->57 29 backgroundTaskHost.exe 16->29         started        59 Contains functionality to steal Internet Explorer form passwords 21->59 61 Unusual module load detection (module proxying) 21->61 43 drive.usercontent.google.com 142.251.167.132, 443, 49690, 49697 GOOGLE-GoogleLLCUS United States 25->43 45 drive.google.com 173.194.45.138, 443, 49687, 49696 GOOGLE-GoogleLLCUS United States 25->45 63 Found suspicious powershell code related to unpacking or dynamic code loading 25->63 31 conhost.exe 25->31         started        33 conhost.exe 27->33         started        file9 signatures10 process11
Score:
98%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/033a99b9bbd0893a8305dfebe5d7683ff9bf54518e4a6dbde3fa1e052f411340
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/033a99b9bbd0893a8305dfebe5d7683ff9bf54518e4a6dbde3fa1e052f411340/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=am5jton32cetvayf37v6lv3ih7436vcrrzfg3ppd7ipakl2bcnaa._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection discovery rat
Link:
https://tria.ge/reports/260602-hvjnfsgz5m/
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses Microsoft Outlook profiles
Contacts third-party web service commonly abused for C2
Checks computer location settings
Badlisted process makes network request
Family: Remcos
Malware Config
C2 Extraction:
102.220.160.21:2404
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/033a99b9bbd0/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/033a99b9bbd0893a8305dfebe5d7683ff9bf54518e4a6dbde3fa1e052f411340

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:detect_tiny_vbs
Create hunting rule
Author:daniyyell
Description:Detects tiny VBS delivery technique

File information

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

Malspam

RemcosRAT

Visual Basic Script (vbs) vbs 033a99b9bbd0893a8305dfebe5d7683ff9bf54518e4a6dbde3fa1e052f411340

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/68767/

Comments