MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 47014593d97368b6ed063234c8a3df28e7d89ad4abf5a7d5c176d64bf2e66967. 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: 11


Maldoc score: 31


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

SHA256 hash: 47014593d97368b6ed063234c8a3df28e7d89ad4abf5a7d5c176d64bf2e66967
SHA3-384 hash: 5870014ad52794d93976cd7219bf955539cd7fc16c415abaaae179aebebd0c6678d1129ac243288e83082d6bec218139
SHA1 hash: 0c6c3cde893904ea1093883d06917d9b73f2ae68
MD5 hash: 23cde0022c4f71e4a90e27cfe229a257
humanhash: two-kilo-high-december
File name:Comprobante.de.Pago.xls
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:138'240 bytes
First seen:2021-12-29 17:05:27 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 3072:prxEtjPOtioVjDGUU1qfDlaGGx+cL2QnAK/h3gRqCCwtnvTZmcCZUeRaqwZUdEAW:lxEtjPOtioVjDGUU1qfDlavx+W2QnAcG
TLSH T100D3AD617A41C816D98547710CE2DAE87B3BFC926EB707033695F72E2EB36D0D91360A
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: 31
OLE dump

MalwareBazaar was able to identify 17 sections in this file using oledump:

Section IDSection sizeSection name
1107 bytesCompObj
2244 bytesDocumentSummaryInformation
3208 bytesSummaryInformation
4102299 bytesWorkbook
5645 bytes_VBA_PROJECT_CUR/PROJECT
6128 bytes_VBA_PROJECT_CUR/PROJECTwm
7833 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
1113049 bytes_VBA_PROJECT_CUR/VBA/ThisWorkbook
127298 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
131725 bytes_VBA_PROJECT_CUR/VBA/__SRP_0
14323 bytes_VBA_PROJECT_CUR/VBA/__SRP_1
15468 bytes_VBA_PROJECT_CUR/VBA/__SRP_2
16348 bytes_VBA_PROJECT_CUR/VBA/__SRP_3
17613 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
SuspiciousEnvironMay read system environment variables
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
SuspiciousvbNormalFocusMay 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)
SuspiciousXorMay 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) code and P-code are different, this may have been used to hide malicious code

Intelligence

File Origin
# of uploads :
1
# of downloads :
266
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Comprobante.de.Pago.xls
Verdict:
No threats detected
Analysis date:
2021-12-29 17:08:51 UTC
Tags:
macros macros-on-open
Link:
https://app.any.run/tasks/1ef118dc-236a-4864-ab43-d9bc8247d1d1

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/vnd.ms-excel
Has a screenshot:
False
Contains macros:
False
Detection:
QuasarRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/216807/
Detection(s):
TwinWave.EvilDoc.StatusIsLikeAFriend.20210201.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Office.Macro-13.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Office.Macro-11.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
DNS request
Sending a custom TCP request
Creating a window
Сreating synchronization primitives
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Link:
https://app.docguard.net/47014593d97368b6ed063234c8a3df28e7d89ad4abf5a7d5c176d64bf2e66967/results/dashboard
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
evasive macros macros-on-open vbastomped
Link:
https://www.filescan.io/uploads/61cc957dec6c6c14a9fbea30/reports/64a04250-9aca-4947-b655-58f29783fa46/overview
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/47014593d97368b6ed063234c8a3df28e7d89ad4abf5a7d5c176d64bf2e66967
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/913872
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
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 functions possibly related to WSH operations (process, registry, environment, or keystrokes)
Document contains an embedded VBA with hexadecimal encoded strings
Document contains VBA stomped code (only p-code) potentially bypassing AV detection
Document exploit detected (creates forbidden files)
Document exploit detected (drops PE files)
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
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for domain / URL
Office process drops PE file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Sigma detected: MS Office Product Spawning Exe in User Dir
Writes to foreign memory regions
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 546350 Sample: Comprobante.de.Pago.xls Startdate: 29/12/2021 Architecture: WINDOWS Score: 100 59 Multi AV Scanner detection for domain / URL 2->59 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 18 other signatures 2->65 7 EXCEL.EXE 57 24 2->7         started        12 wscadminui.exe 12 1 2->12         started        14 wscadminui.exe 2->14         started        process3 dnsIp4 45 js-hurling.com 192.185.113.96, 443, 49165, 49166 UNIFIEDLAYER-AS-1US United States 7->45 47 www.js-hurling.com 7->47 33 C:\Users\user\AppData\...\KYZPSDHC.exe, PE32 7->33 dropped 35 C:\Users\user\AppData\...\njjouhbjhgm[1].exe, PE32 7->35 dropped 37 C:\Users\user\...\Comprobante.de.Pago.xls, Composite 7->37 dropped 83 Document exploit detected (creates forbidden files) 7->83 16 KYZPSDHC.exe 13 3 7->16         started        49 www.js-hurling.com 12->49 39 C:\Users\user\AppData\...\wscadminui.exe, PE32 12->39 dropped 85 Machine Learning detection for dropped file 12->85 21 wscadminui.exe 12->21         started        51 www.js-hurling.com 14->51 file5 signatures6 process7 dnsIp8 41 www.js-hurling.com 16->41 43 js-hurling.com 16->43 29 C:\Users\user\AppData\...\wscadminui.exe, PE32 16->29 dropped 31 C:\Users\user\AppData\Local\...\KYZPSDHC.exe, PE32 16->31 dropped 67 Machine Learning detection for dropped file 16->67 69 Writes to foreign memory regions 16->69 71 Allocates memory in foreign processes 16->71 73 Injects a PE file into a foreign processes 16->73 23 KYZPSDHC.exe 16->23         started        26 KYZPSDHC.exe 16->26         started        file9 signatures10 process11 dnsIp12 75 May check the online IP address of the machine 23->75 77 Machine Learning detection for dropped file 23->77 79 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 23->79 53 artedriendfrim.hopto.org 2.56.57.210, 49168, 49171, 61857 GBTCLOUDUS Netherlands 26->53 55 famesurvelizerditis.sytes.net 26->55 57 2 other IPs or domains 26->57 81 Hides that the sample has been downloaded from the Internet (zone.identifier) 26->81 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/47014593d97368b6ed063234c8a3df28e7d89ad4abf5a7d5c176d64bf2e66967/
Threat name:
Script-Macro.Trojan.Valyria
Create hunting rule
Status:
Malicious
First seen:
2021-12-29 17:10:39 UTC
AV detection:
20 of 43 (46.51%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=i4aule6zonuln3iggi2mri67fdt5rgwuvp22pvobo3lex4xgnftq._file
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:woon3 macro macro_on_action persistence spyware trojan
Link:
https://tria.ge/reports/211229-vmeezsdfek/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Executes dropped EXE
Quasar Payload
Quasar RAT
Malware Config
C2 Extraction:
famesurvelizerditis.sytes.net:61857
tancesucesm.chickenkiller.com:61857
artedriendfrim.hopto.org:61974
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/47014593d97368b6ed063234c8a3df28e7d89ad4abf5a7d5c176d64bf2e66967

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

File information

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

Malspam

QuasarRAT

Excel file xls 47014593d97368b6ed063234c8a3df28e7d89ad4abf5a7d5c176d64bf2e66967

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/216807/

Comments