MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ec623337e17c8a9b0cd636c905b9b1e474040516e7bd4cb6fdc45310ecf2181c. 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


QuasarRAT


Vendor detections: 16


Maldoc score: 23


Intelligence 16 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ec623337e17c8a9b0cd636c905b9b1e474040516e7bd4cb6fdc45310ecf2181c
SHA3-384 hash: 460515cf44211da9e75856ca0b968755adbd9f7c885058b663c0219f178d4be60d4e280c9c7cb29617571c4f7c931635
SHA1 hash: c7e835404bd7ae608231eaf0ea0db4a04362f4d1
MD5 hash: b935c6e33853d2bb0aa2131db51b4d38
humanhash: apart-social-seventeen-hydrogen
File name:Pago.xls
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:246'784 bytes
First seen:2025-06-14 13:16:48 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 6144:vxEtjPOtioVjDGUU1qfDlavx+W2QnATqEhyECuTf/WxvyCJecICXVp4a1Qtx:/qEcECwf+lRJrIUVpV2t
Threatray 75 similar samples on MalwareBazaar
TLSH T12334F1A5B391C816C58943360EEBD6A5232BFD514F72478B3394F32F6FB7E809942252
TrID 58.2% (.XLS) Microsoft Excel sheet (alternate) (56500/1/4)
33.5% (.XLS) Microsoft Excel sheet (32500/1/3)
8.2% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika xls
Reporter abuse_ch
Tags:QuasarRAT xls

Office OLE Information

This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE id
Maldoc score: 23
OLE dump

MalwareBazaar was able to identify 16 sections in this file using oledump:

Section IDSection sizeSection name
1107 bytesCompObj
2244 bytesDocumentSummaryInformation
3208 bytesSummaryInformation
4223428 bytesWorkbook
5527 bytes_VBA_PROJECT_CUR/PROJECT
692 bytes_VBA_PROJECT_CUR/PROJECTwm
7977 bytes_VBA_PROJECT_CUR/VBA/Sheet1
8977 bytes_VBA_PROJECT_CUR/VBA/Sheet2
9977 bytes_VBA_PROJECT_CUR/VBA/Sheet3
103454 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
111558 bytes_VBA_PROJECT_CUR/VBA/__SRP_0
12378 bytes_VBA_PROJECT_CUR/VBA/__SRP_1
13436 bytes_VBA_PROJECT_CUR/VBA/__SRP_2
14438 bytes_VBA_PROJECT_CUR/VBA/__SRP_3
15550 bytes_VBA_PROJECT_CUR/VBA/dir
165120 bytes_VBA_PROJECT_CUR/VBA/sdfgdsok
OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

TypeKeywordDescription
AutoExecWorkbook_OpenRuns when the Excel Workbook is opened
IOCshell32.dllExecutable file name code and P-code are different, this may have been used to hide malicious code
SuspiciousEnvironMay read system environment variables
SuspiciousopenMay open a file
SuspiciousvbNormalFocusMay run an executable file or a system command
SuspiciousShellExecuteAMay run an executable file or a system command
Suspiciousshell32May run an executable file or a system command
SuspiciousLibMay run code from a DLL
SuspiciousURLDownloadToFileAMay download files from the Internet
SuspiciousChrMay attempt to obfuscate specific strings (use option --deobf to deobfuscate)
SuspiciousStrReverseMay attempt to obfuscate specific strings (use option --deobf to deobfuscate)
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
SuspiciousBase64 StringsBase64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence

File Origin
# of uploads :
1
# of downloads :
407
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Pago.xls
Verdict:
No threats detected
Analysis date:
2025-06-14 13:34:24 UTC
Tags:
macros macros-on-open
Link:
https://app.any.run/tasks/1aab7db1-f308-4773-b9a6-3e196997074e

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/9441/
Detection(s):
SecuriteInfo.com.Macro.Downloader-1.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.URLDownloaderSuperStar.20200510.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.PkillDlAndDetonateFugeeLa.20220525.UNOFFICIAL
Create hunting rule

Sanesecurity.Badmacro.Doc.dtop.UNOFFICIAL
Create hunting rule

Sanesecurity.Badmacro.XlsM.Urlmon1.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Macro.Downloader-7.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=684d76788bd5d68a12e89d05
Tags:
autorun office macro micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
DNS request
Using the Windows Management Instrumentation requests
Searching for synchronization primitives
Creating a file
Launching the default Windows debugger (dwwin.exe)
Creating a window
Query of malicious DNS domain
Launching a file downloaded from the Internet
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Link:
https://app.docguard.net/ec623337e17c8a9b0cd636c905b9b1e474040516e7bd4cb6fdc45310ecf2181c/results/dashboard
Behaviour
BlacklistAPI detected
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 confuserex macros macros-on-open net obfuscated packed packed
Link:
https://www.filescan.io/uploads/684d766dfd02ed5e05aa5e86/reports/e607727c-0af7-4a3f-9203-047e9fdc1736/overview
Verdict:
Malicious
Labled as:
GT:VB.Cridex.1
Link:
https://www.hybrid-analysis.com/sample/ec623337e17c8a9b0cd636c905b9b1e474040516e7bd4cb6fdc45310ecf2181c
Label:
Malicious
Suspicious Score:
10/10
Score Malicious:
1%
Score Benign:
0%
Link:
https://www.malware.ai/gui/files/?id=71285218-593a-49f6-9bb3-b58e20e8fbb3
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/ec623337e17c8a9b0cd636c905b9b1e474040516e7bd4cb6fdc45310ecf2181c
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
Document With Minimal Content
Document contains less than 1 kilobyte of semantic information.
Macro Contains Suspicious String
Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...
Macro with DLL Reference
Detected macro logic that will load additional functionality from Dynamically Linked Libraries (DLLs). While not explicitly malicious, this is a common tactic for accessing APIs that are not otherwised exposed via Visual Basic for Applications (VBA).
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1714451
Signature
Detected unpacking (changes PE section rights)
Document contains an embedded VBA macro which may execute processes
Document contains an embedded VBA macro with suspicious strings
Document contains VBA stomped code (only p-code) potentially bypassing AV detection
Document exploit detected (process start blacklist hit)
Document exploit detected (UrlDownloadToFile)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
Sample uses string decryption to hide its real strings
Sigma detected: Suspicious Binary In User Directory Spawned From Office Application
Sigma detected: Suspicious Microsoft Office Child Process
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1714451 Sample: Pago.xls Startdate: 14/06/2025 Architecture: WINDOWS Score: 100 63 www.js-hurling.com 2->63 65 star-azurefd-prod.trafficmanager.net 2->65 67 7 other IPs or domains 2->67 75 Found malware configuration 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 Multi AV Scanner detection for submitted file 2->79 81 10 other signatures 2->81 12 EXCEL.EXE 230 60 2->12         started        17 application.exe 2->17         started        signatures3 process4 dnsIp5 69 s-part-0012.t-0009.t-msedge.net 13.107.246.40, 443, 49720, 49722 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 12->69 71 js-hurling.com 75.98.175.107, 443, 49692 A2HOSTINGUS United States 12->71 61 C:\Users\user\Desktop\Pago.xls, Composite 12->61 dropped 93 Document exploit detected (UrlDownloadToFile) 12->93 19 aoao.exe 1 12->19         started        22 splwow64.exe 12->22         started        95 Injects a PE file into a foreign processes 17->95 24 application.exe 17->24         started        26 application.exe 17->26         started        file6 signatures7 process8 signatures9 83 Detected unpacking (changes PE section rights) 19->83 85 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 19->85 87 Uses schtasks.exe or at.exe to add and modify task schedules 19->87 28 aoao.exe 4 19->28         started        32 aoao.exe 19->32         started        34 svchost.exe 19->34         started        36 WerFault.exe 24->36         started        process10 file11 59 C:\Users\user\AppData\...\application.exe, PE32 28->59 dropped 91 Hides that the sample has been downloaded from the Internet (zone.identifier) 28->91 38 application.exe 1 28->38         started        41 schtasks.exe 1 28->41         started        43 WerFault.exe 22 18 32->43         started        signatures12 process13 signatures14 89 Injects a PE file into a foreign processes 38->89 45 application.exe 38->45         started        49 application.exe 38->49         started        51 conhost.exe 41->51         started        process15 dnsIp16 73 mjoatboating.ydns.eu 196.251.118.120, 4787, 49711, 49714 xneeloZA Seychelles 45->73 97 Hides that the sample has been downloaded from the Internet (zone.identifier) 45->97 53 schtasks.exe 45->53         started        55 WerFault.exe 49->55         started        signatures17 process18 process19 57 conhost.exe 53->57         started       
Score:
100%
Verdict:
Malware
File Type:
OFFICE
Link:
https://malprob.io/report/ec623337e17c8a9b0cd636c905b9b1e474040516e7bd4cb6fdc45310ecf2181c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ec623337e17c8a9b0cd636c905b9b1e474040516e7bd4cb6fdc45310ecf2181c/
Verdict:
Malicious
Threat:
Script-Macro.Trojan.Leonem
Link:
https://tip.neiki.dev/file/ec623337e17c8a9b0cd636c905b9b1e474040516e7bd4cb6fdc45310ecf2181c
Threat name:
Script-Macro.Trojan.Dridex
Create hunting rule
Status:
Malicious
First seen:
2025-06-14 03:34:45 UTC
File Type:
Document
Extracted files:
25
AV detection:
15 of 23 (65.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5rrdgn7bpsfjwdgwg3eqlonr4r2aibiw466uznx5yrjrb3hsdaoa._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
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QuasarRAT
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QuasarRAT
error
QuasarRAT
+ 65 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
macro macro_on_action
Link:
https://tria.ge/reports/250614-qjm6hahp2s/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/c3abc0fc-8ada-42aa-a405-b5525c93db21
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/ec623337e17c8a9b0cd636c905b9b1e474040516e7bd4cb6fdc45310ecf2181c

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:informational_win_ole_protected
Create hunting rule
Author:Jeff White (karttoon@gmail.com) @noottrak
Description:Identify OLE Project protection within documents.
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/9441/

Comments