MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f09f54a8c694a8b026051b90fd0f92040d952b75446af726de55522ef1e13dda. 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: 14


Maldoc score: 23


Intelligence 14 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f09f54a8c694a8b026051b90fd0f92040d952b75446af726de55522ef1e13dda
SHA3-384 hash: 483c21c647d54162c22c28de5b30df516d1cb79fc7225a803064caa06015b12d9e9450d6972f95469c5aa87fbb3b710a
SHA1 hash: 636573702a1feec449e3e13e1366221e1baff96d
MD5 hash: 784c8beac43a6f6de17a8f05299d528f
humanhash: tango-social-echo-ack
File name:pago_noviembre-diciembre.xls
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:143'872 bytes
First seen:2022-11-30 18:23:48 UTC
Last seen:2022-11-30 19:28:14 UTC
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 3072:HrxEtjPOtioVjDGUU1qfDlaGGx+cL2QnAIWpnUXB7pqkCkGSjrU91z+M/7OmGie:LxEtjPOtioVjDGUU1qfDlavx+W2QnA1d
TLSH T14AE39D567689C85AC65807720CE6C7EABB37FC125E7782073284F32E5E77AE4D812607
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)
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 19 sections in this file using oledump:

Section IDSection sizeSection name
1107 bytesCompObj
2244 bytesDocumentSummaryInformation
3208 bytesSummaryInformation
4109416 bytesWorkbook
5639 bytes_VBA_PROJECT_CUR/PROJECT
6128 bytes_VBA_PROJECT_CUR/PROJECTwm
7960 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
119665 bytes_VBA_PROJECT_CUR/VBA/ThisWorkbook
126373 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
132385 bytes_VBA_PROJECT_CUR/VBA/__SRP_0
14365 bytes_VBA_PROJECT_CUR/VBA/__SRP_1
151932 bytes_VBA_PROJECT_CUR/VBA/__SRP_2
16220 bytes_VBA_PROJECT_CUR/VBA/__SRP_3
1784 bytes_VBA_PROJECT_CUR/VBA/__SRP_4
18104 bytes_VBA_PROJECT_CUR/VBA/__SRP_5
19612 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 :
2
# of downloads :
191
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
pago_noviembre-diciembre.xls
Verdict:
Malicious activity
Analysis date:
2022-11-30 18:52:46 UTC
Tags:
macros macros-on-open evasion trojan quasar
Link:
https://app.any.run/tasks/cd9d6aa4-2adf-4a02-89fd-e9c858526fa7

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/340705/
Detection(s):
MiscreantPunch.EvilMacro.DL.170224.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.CROAndTheTangerineDream.M1.20200630.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.StatusIsLikeAFriend.20210201.UNOFFICIAL
Create hunting rule

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

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

TwinWave.EvilDoc.ShoulderOfOrion.20220121.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.OplupPicturesOfU.MSOLE2.220704.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
Creating a window
Сreating synchronization primitives
DNS request
Creating a file in the %AppData% subdirectories
Searching for synchronization primitives
Creating a file in the Program Files subdirectories
Running batch commands
Launching the default Windows debugger (dwwin.exe)
Sending an HTTP GET request
Unauthorized injection to a recently created process
Sending a custom TCP request by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Link:
https://app.docguard.net/f09f54a8c694a8b026051b90fd0f92040d952b75446af726de55522ef1e13dda/results/dashboard
Behaviour
BlacklistAPI detected
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm greyware macros macros-on-open setupapi.dll shdocvw.dll shell32.dll
Link:
https://www.filescan.io/uploads/63879fc353637738886634c9/reports/c17c9fdc-9165-47bf-a312-990fbd1b2149/overview
Label:
Malicious
Suspicious Score:
9.9/10
Score Malicious:
1%
Score Benign:
0%
Link:
https://www.malware.ai/gui/files/?id=1419c19d-e804-41bd-a5cc-12a175f95c88
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/f09f54a8c694a8b026051b90fd0f92040d952b75446af726de55522ef1e13dda
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.
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...
Document With Minimal Content
Document contains less than 1 kilobyte of semantic information.
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1124313
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 exploit detected (creates forbidden files)
Document exploit detected (drops PE files)
Document exploit detected (process start blacklist hit)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Office process drops PE file
Yara detected Generic Downloader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 757037 Sample: pago_noviembre-diciembre.xls Startdate: 30/11/2022 Architecture: WINDOWS Score: 100 42 Malicious sample detected (through community Yara rule) 2->42 44 Antivirus detection for URL or domain 2->44 46 Antivirus / Scanner detection for submitted sample 2->46 48 11 other signatures 2->48 10 EXCEL.EXE 53 24 2->10         started        process3 dnsIp4 38 tractorandinas.com 192.185.115.3, 443, 49171 UNIFIEDLAYER-AS-1US United States 10->38 40 www.tractorandinas.com 10->40 30 C:\Users\user\AppData\Roaming\...\ORDGKYG.exe, PE32 10->30 dropped 32 C:\Users\user\AppData\...\ionschedul[1].exe, PE32 10->32 dropped 34 C:\Users\...\pago_noviembre-diciembre.xls, Composite 10->34 dropped 52 Document exploit detected (creates forbidden files) 10->52 15 ORDGKYG.exe 6 10->15         started        file5 signatures6 process7 file8 36 C:\...\POkonjhjjrst.sfx.exe, PE32 15->36 dropped 18 cmd.exe 15->18         started        process9 process10 20 POkonjhjjrst.sfx.exe 7 18->20         started        file11 28 C:\Users\user\AppData\...\POkonjhjjrst.exe, PE32 20->28 dropped 23 POkonjhjjrst.exe 20->23         started        process12 signatures13 50 Machine Learning detection for dropped file 23->50 26 POkonjhjjrst.exe 23->26         started        process14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f09f54a8c694a8b026051b90fd0f92040d952b75446af726de55522ef1e13dda/
Threat name:
Script-Macro.Trojan.Valyria
Create hunting rule
Status:
Malicious
First seen:
2022-11-30 15:50:21 UTC
File Type:
Document
Extracted files:
28
AV detection:
23 of 40 (57.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6cpvjkggssulajqfdoip2d4saqgzkk3virvpojw6kvjc54pbhxna._file
Gathering data
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/b46ce89d-1beb-4d38-ab11-b00ed140350d
Malware family:
xRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f09f54a8c694/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f09f54a8c694a8b026051b90fd0f92040d952b75446af726de55522ef1e13dda

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
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:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB

File information

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

Malspam

QuasarRAT

Excel file xls f09f54a8c694a8b026051b90fd0f92040d952b75446af726de55522ef1e13dda

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/340705/

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