MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b64f4ce87160ccf196a42334f23b99c28c5bfd910884e0d1caf9907d5fceb56b. 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


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

SHA256 hash: b64f4ce87160ccf196a42334f23b99c28c5bfd910884e0d1caf9907d5fceb56b
SHA3-384 hash: 7b19cff052b667d62467e6f950a25bd99a7a9f21e5c258865873911aadab4e6531ba3f2c328359fc2df76a871cef5fa7
SHA1 hash: 2a6a4409087fb288d0a3786741b65b5cf7543afb
MD5 hash: 1d1cdc3207ec7e0089fd2510d3230e1d
humanhash: kilo-quiet-apart-monkey
File name:pedido de compra.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:9'549'312 bytes
First seen:2025-02-21 08:32:56 UTC
Last seen:2025-03-10 11:24:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 49152:9BRDOZFxXuMJFxJh/Au+SSA0iYTAV4iM1OZfsSXBF6n2LkTQXxbvJPyBc2:9BAZFcI/Au+lA0iYTAV44RXH
Threatray 1'007 similar samples on MalwareBazaar
TLSH T169A6E687B6C68DA2C2E51736C9A7071443B5EDC3A323D7193A8E235A0E13FB94942777
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter lowmal3
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
534
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
pedido de compra.exe
Verdict:
Malicious activity
Analysis date:
2025-02-21 09:17:30 UTC
Tags:
opendir netreactor purecrypter rat quasar remote evasion
Link:
https://app.any.run/tasks/c4d5c5c6-93ed-4f0d-b729-4c14986fb069

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.14782.9536.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67b83b92a0fd713c335c2dce
Tags:
autorun virus sage msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Sending an HTTP GET request to an infection source
Creating a file in the %AppData% directory
Restart of the analyzed sample
Creating a window
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a file
Connection attempt to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated obfuscated
Link:
https://www.filescan.io/uploads/67b83a4aea4978452df273ec/reports/01f5616b-da2a-402e-a3c1-9675bf71c4fd/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b64f4ce87160ccf196a42334f23b99c28c5bfd910884e0d1caf9907d5fceb56b
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4eb63182-3554-4901-b71e-8afee99208ae
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1620793
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates multiple autostart registry keys
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1620793 Sample: pedido de compra.exe Startdate: 21/02/2025 Architecture: WINDOWS Score: 100 47 hoffmann3.ydns.eu 2->47 49 ipwho.is 2->49 61 Suricata IDS alerts for network traffic 2->61 63 Found malware configuration 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 8 other signatures 2->67 9 pedido de compra.exe 16 4 2->9         started        14 nusky1.exe 14 2 2->14         started        16 outlooks.exe 2->16         started        18 2 other processes 2->18 signatures3 process4 dnsIp5 55 196.251.71.142, 49704, 49883, 49929 Web4AfricaZA Seychelles 9->55 43 C:\Users\user\AppData\Roaming\nusky1.exe, PE32 9->43 dropped 45 C:\Users\user\...\nusky1.exe:Zone.Identifier, ASCII 9->45 dropped 77 Creates multiple autostart registry keys 9->77 79 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 9->79 81 Injects a PE file into a foreign processes 9->81 20 pedido de compra.exe 1 5 9->20         started        83 Antivirus detection for dropped file 14->83 24 nusky1.exe 14->24         started        26 outlooks.exe 16->26         started        28 nusky1.exe 18->28         started        30 outlooks.exe 18->30         started        file6 signatures7 process8 file9 39 C:\Users\user\AppData\...\outlooks.exe, PE32 20->39 dropped 41 C:\Users\user\...\pedido de compra.exe.log, ASCII 20->41 dropped 73 Creates multiple autostart registry keys 20->73 75 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->75 32 outlooks.exe 14 2 20->32         started        signatures10 process11 signatures12 57 Antivirus detection for dropped file 32->57 59 Injects a PE file into a foreign processes 32->59 35 outlooks.exe 32->35         started        process13 dnsIp14 51 hoffmann3.ydns.eu 212.23.222.222, 49983, 5829 TMRDE unknown 35->51 53 ipwho.is 195.201.57.90, 443, 49984 HETZNER-ASDE Germany 35->53 69 Hides that the sample has been downloaded from the Internet (zone.identifier) 35->69 71 Installs a global keyboard hook 35->71 signatures15
Score:
90%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b64f4ce87160ccf196a42334f23b99c28c5bfd910884e0d1caf9907d5fceb56b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b64f4ce87160ccf196a42334f23b99c28c5bfd910884e0d1caf9907d5fceb56b/
Threat name:
ByteCode-MSIL.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-02-21 08:33:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
32
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wzhuz2drmdgpdfveem2peo4zykgfx7mrbccobuok7gih2x6owvvq._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
02f0a7f184fcdaaa4d9a46ca29712c8daae0a46d2038bd362dc818025df8d553
QuasarRAT
4e6e48275b1f3412edc045e1a81d509ddcfe360c06bdd4483fcd5b4fc77b7ef3
QuasarRAT
56bd84e77da1de080c2d5c42b6f101574e7146b200026ea9468703d742edec10
QuasarRAT
a2b66f9f80d2add5e7b13f9e75b6c964e53d7aa2e52065b469b83f7e7c31fa7c
QuasarRAT
b4a61a178dfda52928802e1189f3bf1bef1c03aecf6b6fc99d2a3713f3d5e202
QuasarRAT
b64f4ce87160ccf196a42334f23b99c28c5bfd910884e0d1caf9907d5fceb56b
QuasarRAT
b70b64872a21f338463d0e6b1f2a45bb186ad711317164192b64e54a19baef85
QuasarRAT
error
QuasarRAT
+ 997 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:david discovery persistence spyware trojan
Link:
https://tria.ge/reports/250221-kfz31axrbm/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Executes dropped EXE
Quasar RAT
Quasar family
Quasar payload
Suspicious use of NtCreateUserProcessOtherParentProcess
Malware Config
C2 Extraction:
hoffmann3.ydns.eu:5829
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/817ef2c2-70c2-4e0b-8387-61715741265c
Unpacked files
SH256 hash:
b64f4ce87160ccf196a42334f23b99c28c5bfd910884e0d1caf9907d5fceb56b
MD5 hash:
1d1cdc3207ec7e0089fd2510d3230e1d
SHA1 hash:
2a6a4409087fb288d0a3786741b65b5cf7543afb
Link:
https://www.unpac.me/results/0bfcffc0-7c37-4454-a74f-46ead689fbb6/
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/b64f4ce87160ccf196a42334f23b99c28c5bfd910884e0d1caf9907d5fceb56b

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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Lumma_Stealer_Detection
Create hunting rule
Author:ashizZz
Description:Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

  
Delivery method
Other

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments