MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a845d78bb580f0e945968e893f9359bcc4aa001489e73a49c8c9876190cda2df. 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: 17


Maldoc score: 23


Intelligence 17 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a845d78bb580f0e945968e893f9359bcc4aa001489e73a49c8c9876190cda2df
SHA3-384 hash: deee2d7d24a4affc897edcbb5f9d459604d48a475022e17dbff5d12c61d21b685e88d260e666191b134292838a7d74c3
SHA1 hash: c6b949596eadacf12d1c18eb67d47af334123b4f
MD5 hash: eeef8d43d5c01e722708f5ac11b9a376
humanhash: nitrogen-nitrogen-island-sink
File name:Transaccion_SWIFT.xls
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:59'904 bytes
First seen:2025-07-26 17:58:44 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 1536:6oxEtjPOtioVjDGUU1qfDlaGGx+cL2QnAJxrd7s+mtJGid:6oxEtjPOtioVjDGUU1qfDlaGGx+cL2QN
TLSH T1FE43A4A2B695D8C6D94807310CE6C2E66727BC515F6783CB328DB72F6F726808CC2657
TrID 46.5% (.XLS) Microsoft Excel sheet (alternate) (56500/1/4)
26.7% (.XLS) Microsoft Excel sheet (32500/1/3)
20.1% (.XLS) Microsoft Excel sheet (alternate) (24500/1/2)
6.5% (.) 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 17 sections in this file using oledump:

Section IDSection sizeSection name
1107 bytesCompObj
2244 bytesDocumentSummaryInformation
3208 bytesSummaryInformation
436350 bytesWorkbook
5574 bytes_VBA_PROJECT_CUR/PROJECT
6128 bytes_VBA_PROJECT_CUR/PROJECTwm
7913 bytes_VBA_PROJECT_CUR/VBA/Module1
8985 bytes_VBA_PROJECT_CUR/VBA/Sheet1
9985 bytes_VBA_PROJECT_CUR/VBA/Sheet2
10985 bytes_VBA_PROJECT_CUR/VBA/Sheet3
115590 bytes_VBA_PROJECT_CUR/VBA/ThisWorkbook
124544 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
131408 bytes_VBA_PROJECT_CUR/VBA/__SRP_0
14210 bytes_VBA_PROJECT_CUR/VBA/__SRP_1
15388 bytes_VBA_PROJECT_CUR/VBA/__SRP_2
16158 bytes_VBA_PROJECT_CUR/VBA/__SRP_3
17612 bytes_VBA_PROJECT_CUR/VBA/dir
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
SuspiciousOpenMay open a file
SuspiciousWriteMay write to a file (if combined with Open)
Suspiciousadodb.streamMay create a text file
SuspiciousSaveToFileMay create a text file
SuspiciousShellMay run an executable file or a system command
SuspiciousWScript.ShellMay run an executable file or a system command
SuspiciousCreateObjectMay create an OLE object
SuspiciousShell.ApplicationMay run an application (if combined with CreateObject)
Suspiciousmicrosoft.xmlhttpMay download files from the Internet
SuspiciousChrMay 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)

Intelligence

File Origin
# of uploads :
1
# of downloads :
65
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Transaccion_SWIFT.xls
Verdict:
Malicious activity
Analysis date:
2025-07-26 17:59:20 UTC
Tags:
macros macros-on-open loader auto-reg crypto-regex confuser
Link:
https://app.any.run/tasks/d8546c23-1826-4017-ba53-773132f7e453

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/17050/
Detection(s):
TwinWave.EvilDoc.StatusIsLikeAFriend.20210201.UNOFFICIAL
Create hunting rule

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

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=688517810b4775fb2131a1b1
Tags:
autorun office macro micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Sending a custom TCP request
Creating a window
DNS request
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Searching for synchronization primitives
Creating a file
Launching the default Windows debugger (dwwin.exe)
Connection attempt by exploiting the app vulnerability
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/a845d78bb580f0e945968e893f9359bcc4aa001489e73a49c8c9876190cda2df/results/dashboard
Behaviour
BlacklistAPI detected
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
dropper macros macros-on-open
Link:
https://www.filescan.io/uploads/68851783a16348d835efb72b/reports/0fdf6de0-5a79-4e77-a7bb-bb857492e08a/overview
Verdict:
Malicious
Labled as:
Valyria
Link:
https://www.hybrid-analysis.com/sample/a845d78bb580f0e945968e893f9359bcc4aa001489e73a49c8c9876190cda2df
Label:
Malicious
Suspicious Score:
10/10
Score Malicious:
1%
Score Benign:
0%
Link:
https://www.malware.ai/gui/files/?id=426e7e33-c35a-488b-af30-836935ff8f97
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/a845d78bb580f0e945968e893f9359bcc4aa001489e73a49c8c9876190cda2df
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
Macro with File System Write
Detected macro logic that can write data to the file system.
Document With Minimal Content
Document contains less than 1 kilobyte of semantic information.
Shell.Application Object
Detected the instantiation of Shell Application object within the macro.
Macro Contains Suspicious String
Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1744734
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Document contains an embedded VBA macro with suspicious strings
Document contains an embedded VBA with functions possibly related to ADO stream file operations
Document contains an embedded VBA with functions possibly related to HTTP operations
Document contains an embedded VBA with hexadecimal encoded strings
Document contains VBA stomped code (only p-code) potentially bypassing AV detection
Document exploit detected (process start blacklist hit)
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
Office process queries suspicious COM object (likely to drop second stage)
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 known network protocols on non-standard ports
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: 1744734 Sample: Transaccion_SWIFT.xls Startdate: 26/07/2025 Architecture: WINDOWS Score: 100 57 ploatvoatin.ydns.eu 2->57 59 forwardspecview.ydns.eu 2->59 61 6 other IPs or domains 2->61 75 Found malware configuration 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 Antivirus / Scanner detection for submitted sample 2->79 81 13 other signatures 2->81 12 EXCEL.EXE 193 57 2->12         started        17 appViegHD.exe 2->17         started        signatures3 process4 dnsIp5 67 forwardspecview.ydns.eu 196.251.87.88, 49727, 5338 SONIC-WirelessZA Seychelles 12->67 69 s-part-0012.t-0009.t-msedge.net 13.107.246.40, 443, 49741, 49742 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 12->69 55 C:\Users\user\Desktop\Transaccion_SWIFT.xls, Composite 12->55 dropped 91 Office process queries suspicious COM object (likely to drop second stage) 12->91 19 XRCXSZF.exe 1 12->19         started        22 splwow64.exe 12->22         started        93 Injects a PE file into a foreign processes 17->93 24 appViegHD.exe 17->24         started        26 appViegHD.exe 17->26         started        file6 signatures7 process8 signatures9 83 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 19->83 85 Uses schtasks.exe or at.exe to add and modify task schedules 19->85 28 XRCXSZF.exe 4 19->28         started        32 XRCXSZF.exe 19->32         started        process10 file11 53 C:\Users\user\AppData\...\appViegHD.exe, PE32 28->53 dropped 89 Hides that the sample has been downloaded from the Internet (zone.identifier) 28->89 34 appViegHD.exe 1 28->34         started        37 schtasks.exe 1 28->37         started        39 WerFault.exe 2 32->39         started        signatures12 process13 signatures14 71 Antivirus detection for dropped file 34->71 73 Injects a PE file into a foreign processes 34->73 41 appViegHD.exe 34->41         started        45 appViegHD.exe 34->45         started        47 conhost.exe 37->47         started        process15 dnsIp16 63 ploatvoatin.ydns.eu 196.251.70.114, 4787, 49744, 49746 Web4AfricaZA Seychelles 41->63 65 floataboat.strangled.net 185.251.70.119, 4785 SESTEKTR Russian Federation 41->65 87 Hides that the sample has been downloaded from the Internet (zone.identifier) 41->87 49 schtasks.exe 41->49         started        signatures17 process18 process19 51 conhost.exe 49->51         started       
Score:
100%
Verdict:
Malware
File Type:
OFFICE
Link:
https://malprob.io/report/a845d78bb580f0e945968e893f9359bcc4aa001489e73a49c8c9876190cda2df
Verdict:
Malware
YARA:
6 match(es)
Tags:
adodb.stream ATT&CK T1564.007 Blacklist VBA Malicious Malicious Document microsoft.xmlhttp Office Document Shell.Application VBA Stomping WScript.Shell
Link:
https://app.malva.re/file/eeef8d43d5c01e722708f5ac11b9a376
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a845d78bb580f0e945968e893f9359bcc4aa001489e73a49c8c9876190cda2df/
Threat name:
Script-Macro.Trojan.Valyria
Create hunting rule
Status:
Malicious
First seen:
2025-07-26 17:59:30 UTC
File Type:
Document
Extracted files:
29
AV detection:
21 of 35 (60.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vbc5pc5vqdyosrmwr2et7e2zxtckuaaurhttusoizgdwdegnulpq._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
error
QuasarRAT
Result
Malware family:
n/a
Score:
  8/10
Tags:
macro macro_on_action
Link:
https://tria.ge/reports/250726-wkxn8aar51/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Process spawned suspicious child process
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/da8236b9-d7d7-4566-86db-effef7877931
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/a845d78bb580f0e945968e893f9359bcc4aa001489e73a49c8c9876190cda2df

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.

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/17050/

Comments