MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e547f7c290ea95ecc61eaa5ae61a957e9991e0b0fb3fa11d6d18dc12846a3ccc. 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 8 File information Comments

SHA256 hash:	e547f7c290ea95ecc61eaa5ae61a957e9991e0b0fb3fa11d6d18dc12846a3ccc
SHA3-384 hash:	57a657a2d12a08f842545615f3344b984d437d8abd6d4c963d0c82143bdcbc20029981eb1790f2523af03922e3df7ad8
SHA1 hash:	cd7bb3b8e27f9982dd8678dd42f16798ce5fa1fe
MD5 hash:	c51e6687036e931766c3e3cbdbbd008a
humanhash:	mountain-enemy-cardinal-orange
File name:	Transferi(Odeme).xls
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	292'864 bytes
First seen:	2025-03-21 13:43:46 UTC
Last seen:	Never
File type:	xls
MIME type:	application/vnd.ms-excel
ssdeep	6144:axEtjPOtioVjDGUU1qfDlavx+W2QnAu0PR7lHkj2DldcV0PuSNDfdtWP3OVn+mnm:2RkCDXcRa1VXnNT
TLSH	T19454F151B280C83ADA1922764CE1C6DA7677FC541F3E4A4735A1F73F6AB77D08A0221B
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:	geo QuasarRAT TUR 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 ID	Section size	Section name
1	107 bytes	CompObj
2	244 bytes	DocumentSummaryInformation
3	208 bytes	SummaryInformation
4	264494 bytes	Workbook
5	572 bytes	_VBA_PROJECT_CUR/PROJECT
6	128 bytes	_VBA_PROJECT_CUR/PROJECTwm
7	833 bytes	_VBA_PROJECT_CUR/VBA/Module1
8	985 bytes	_VBA_PROJECT_CUR/VBA/Sheet1
9	985 bytes	_VBA_PROJECT_CUR/VBA/Sheet2
10	985 bytes	_VBA_PROJECT_CUR/VBA/Sheet3
11	6800 bytes	_VBA_PROJECT_CUR/VBA/ThisWorkbook
12	5295 bytes	_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
13	1550 bytes	_VBA_PROJECT_CUR/VBA/__SRP_0
14	215 bytes	_VBA_PROJECT_CUR/VBA/__SRP_1
15	488 bytes	_VBA_PROJECT_CUR/VBA/__SRP_2
16	378 bytes	_VBA_PROJECT_CUR/VBA/__SRP_3
17	612 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:

Type	Keyword	Description
AutoExec	Workbook_Open	Runs when the Excel Workbook is opened
Suspicious	Open	May open a file
Suspicious	Write	May write to a file (if combined with Open)
Suspicious	adodb.stream	May create a text file
Suspicious	SaveToFile	May create a text file
Suspicious	Shell	May run an executable file or a system command
Suspicious	WScript.Shell	May run an executable file or a system command
Suspicious	CreateObject	May create an OLE object
Suspicious	Shell.Application	May run an application (if combined with CreateObject)
Suspicious	microsoft.xmlhttp	May download files from the Internet
Suspicious	Chr	May attempt to obfuscate specific strings (use option --deobf to deobfuscate)
Suspicious	Hex Strings	Hex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence

File Origin

# of uploads :

# of downloads :

472

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

Transferi(Odeme).xls

Verdict:

Malicious activity

Analysis date:

2025-03-21 14:09:45 UTC

Tags:

macros macros-on-open loader evasion phishing

Link:

https://app.any.run/tasks/fa1d987a-01b3-43f1-8ad9-3ff656e12800

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=67dd6d4c115e7b48b48f6725

Tags:

office macro micro

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Creating a window

Сreating synchronization primitives

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)

Using the Windows Management Instrumentation requests

Connection attempt

Enabling the 'hidden' option for recently created files

Connection attempt to an infection source

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

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Query of malicious DNS domain

Creating a process from a recently created file

Result

Verdict:

Malicious

File Type:

Legacy Excel File with Macro

Link:

https://app.docguard.net/e547f7c290ea95ecc61eaa5ae61a957e9991e0b0fb3fa11d6d18dc12846a3ccc/results/dashboard

Behaviour

BlacklistAPI detected

Document image

Image:

Download PNG

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

confuserex dropper language-tr macros macros-on-open net obfuscated packed packed

Link:

https://www.filescan.io/uploads/67dd6d405ca829f67323623b/reports/02c2df0e-2047-4805-8d36-180310ad4e59/overview

Verdict:

Malicious

Labled as:

Trojan.Exploit.MSOfficeExcel.GenericS

Link:

https://www.hybrid-analysis.com/sample/e547f7c290ea95ecc61eaa5ae61a957e9991e0b0fb3fa11d6d18dc12846a3ccc

Label:

Malicious

Suspicious Score:

10/10

Score Malicious:

Score Benign:

Link:

https://www.malware.ai/gui/files/?id=c1b7085f-323d-4438-b4ef-6cb72330f1db

Result

Threat name:

Quasar

Detection:

malicious

Classification:

troj.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1645169

Signature

Antivirus / Scanner detection for submitted sample

Connects to many ports of the same IP (likely port scanning)

Detected Quasar RAT

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 dropped file

Multi AV Scanner detection for submitted file

Office process queries suspicious COM object (likely to drop second stage)

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

Suricata IDS alerts for network traffic

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

Score:

100%

Verdict:

Malware

File Type:

OFFICE

Link:

https://malprob.io/report/e547f7c290ea95ecc61eaa5ae61a957e9991e0b0fb3fa11d6d18dc12846a3ccc

Detection:

quasar

Link:

https://mwdb.cert.pl/sample/e547f7c290ea95ecc61eaa5ae61a957e9991e0b0fb3fa11d6d18dc12846a3ccc/

Threat name:

Document-Excel.Trojan.Quasarrat

Status:

Suspicious

First seen:

2025-03-21 13:44:28 UTC

File Type:

Document

Extracted files:

AV detection:

18 of 24 (75.00%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=4vd7pquq5kk6zrq6vjnomguvp2mzdyfq7m72chlnddobfbdkhtga._file

Verdict:

malicious

Label(s):

venomrat

Similar samples:

error

QuasarRAT

Result

Malware family:

quasar

Score:

10/10

Tags:

family:quasar botnet:stroy8 discovery macro macro_on_action spyware trojan

Link:

https://tria.ge/reports/250321-q11sxstmy7/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Scheduled Task/Job: Scheduled Task

Suspicious behavior: AddClipboardFormatListener

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Office loads VBA resources, possible macro or embedded object present

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Looks up external IP address via web service

Executes dropped EXE

Loads dropped DLL

Downloads MZ/PE file

Quasar RAT

Quasar family

Quasar payload

Malware Config

C2 Extraction:

fortyfive5.ydns.eu:61539
seventyfive75.ydns.eu:61539
fortyfivev.crabdance.com:61540

Malware Family:

n/a

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/aac1bd3b-902d-4c1e-8694-39abbae27f64

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/e547f7c290ea/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/e547f7c290ea95ecc61eaa5ae61a957e9991e0b0fb3fa11d6d18dc12846a3ccc

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:	Suspicious_Latam_MSI_and_ZIP_Files Create hunting rule
Author:	eremit4, P4nd3m1cb0y
Description:	Detects suspicious .msi and .zip files used in Latam banking trojan campaigns.

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.

No further information available

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