MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3f5ce1cb8e9d41e779201fa63573230862cfb3aa0e0023ce82fd0ca4933bda77. 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


Intelligence 17 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3f5ce1cb8e9d41e779201fa63573230862cfb3aa0e0023ce82fd0ca4933bda77
SHA3-384 hash: 6bdc6a65393e143f19534ee07af59b7fb736649e2fcfd9c517935e9e1463fb34ceeeabe21a0239cba59eb102895c3776
SHA1 hash: 6bef0719ece0e27e88e9600ebe0cd28cc9fa53da
MD5 hash: 3753218f75697dc4a795d9d4b1fdfc36
humanhash: yankee-mississippi-grey-spring
File name:z69Calendario_de_Pagos.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:4'090'368 bytes
First seen:2025-09-29 23:01:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'654 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 98304:oGhg0YZbc1k9FoIBtR/4C8/QI/V0CW/JdBCXFiK:oyDGjt3R/4C8/QI/V0L/JrCAK
TLSH T1E91623EF7110F6DFD833C03A7A543C2CEACD67A3432B4673A0571668995C9468EB70A6
TrID 28.5% (.EXE) Win64 Executable (generic) (10522/11/4)
17.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
13.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
12.2% (.EXE) Win32 Executable (generic) (4504/4/1)
5.6% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter FXOLabs
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
110
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
z69Calendario_de_Pagos.exe
Verdict:
Malicious activity
Analysis date:
2025-09-29 23:02:38 UTC
Tags:
auto-reg crypto-regex confuser
Link:
https://app.any.run/tasks/38bcc168-f370-40c3-b26c-321ffe81c3cf

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/29507/
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68db100540b7da0b4eb8c2bf
Tags:
autorun packed spawn sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching a process
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
base64 confuser confuserex net obfuscated obfuscated packed packed vbnet
Link:
https://www.filescan.io/uploads/68db0fcac564c8e81d0a59ce/reports/bfec2944-82a9-4a76-b2a2-3ab1cd1459fc/overview
Verdict:
Malicious
Labled as:
MSILHeracles.Generic
Link:
https://www.hybrid-analysis.com/sample/3f5ce1cb8e9d41e779201fa63573230862cfb3aa0e0023ce82fd0ca4933bda77
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-29T18:08:00Z UTC
Last seen:
2025-09-29T18:08:00Z UTC
Hits:
~100
Detections:
PDM:Trojan.Win32.Tasker.cust PDM:Trojan.Win32.Generic HEUR:Trojan.MSIL.Injuke.gen Trojan-PSW.MSIL.Agent.sb Trojan.MSIL.Quasar.a
Link:
https://opentip.kaspersky.com/3f5ce1cb8e9d41e779201fa63573230862cfb3aa0e0023ce82fd0ca4933bda77/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/090fd484-df0a-4551-a506-0e75c21ec712
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3f5ce1cb8e9d41e779201fa63573230862cfb3aa0e0023ce82fd0ca4933bda77
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3f5ce1cb8e9d41e779201fa63573230862cfb3aa0e0023ce82fd0ca4933bda77/
Verdict:
Malicious
Threat:
Family.QUASAR
Link:
https://tip.neiki.dev/file/3f5ce1cb8e9d41e779201fa63573230862cfb3aa0e0023ce82fd0ca4933bda77
Threat name:
ByteCode-MSIL.Hacktool.Aikaantivm
Create hunting rule
Status:
Malicious
First seen:
2025-09-29 23:02:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
29 of 38 (76.32%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=h5oods4otva6o6jad6tdk4zdbbrm7m5kbyachtuc7ugkjez33j3q._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
error
QuasarRAT
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:silver02 discovery execution persistence spyware trojan
Link:
https://tria.ge/reports/250929-2z9vzsymy2/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
ConfuserEx .NET packer
Suspicious use of SetThreadContext
Executes dropped EXE
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
onanothertry.ydns.eu:4799
asesorarcolom.crabdance.com:4898
Verdict:
Malicious
Tags:
red_team_tool
YARA:
SUSP_NET_NAME_ConfuserEx
Link:
https://app.threat.zone/submission/7170dafe-ca45-44b1-a489-7b7e24d40bae
Unpacked files
SH256 hash:
f42dcad992d01c46c664f2efb566ee820d205de1f79adaf48939de34e159ac5b
MD5 hash:
a27eaedb1797952f186c136e9eb8d102
SHA1 hash:
8c80b1bfd1e98ac0ba4424eca060e66dfa8c09ed
Detections:
QuasarRAT
Create hunting rule
cn_utf8_windows_terminal
Create hunting rule
malware_windows_xrat_quasarrat
Create hunting rule
MAL_QuasarRAT_May19_1
Create hunting rule
MAL_BackNet_Nov18_1
Create hunting rule
INDICATOR_EXE_Packed_Fody
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Link:
https://www.unpac.me/results/7887ae4e-5e04-4c4b-875d-3f7848dfa54b/
Parent samples :
6e2c497b5ba8031212a6ec66f84c2483a35e124ba96db701679b480e8e56d0e0
9eb5301a3c5929f849f95bf070172e4a8a8bd8c4880dbe238aa88ee76adf3063
a769cf974a67c6c99eca486ea834aaf1f601ddf1ddb3860eafb2e433dec469e9
07a467fa5c5d3fd8474fef9e8024755d812ea3ed335e91eee64e55400bcc6086
3f5ce1cb8e9d41e779201fa63573230862cfb3aa0e0023ce82fd0ca4933bda77
SH256 hash:
56ea6c033d73289576f2f49ae57dea46de758cfeff491cd04893a2aa84f0714f
MD5 hash:
838e32f28d66d128801254c163574f91
SHA1 hash:
f3cde8dc28239fb953143b00373b4c5fe3d20863
Link:
https://www.unpac.me/results/7887ae4e-5e04-4c4b-875d-3f7848dfa54b/
SH256 hash:
d989fe2546a5437e9420c4d3585441ee215a743087960c34cd04955293d1e0ca
MD5 hash:
1d8702f155c9b225a5d0fce814777c75
SHA1 hash:
2c7efc378489926b07b180a8366c8f0552c605e2
Detections:
SUSP_NET_Large_Static_Array_In_Small_File_Jan24
Create hunting rule
HKTL_NET_GUID_Quasar
Create hunting rule
Link:
https://www.unpac.me/results/7887ae4e-5e04-4c4b-875d-3f7848dfa54b/
Parent samples :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 hash:
3f5ce1cb8e9d41e779201fa63573230862cfb3aa0e0023ce82fd0ca4933bda77
MD5 hash:
3753218f75697dc4a795d9d4b1fdfc36
SHA1 hash:
6bef0719ece0e27e88e9600ebe0cd28cc9fa53da
Link:
https://www.unpac.me/results/7887ae4e-5e04-4c4b-875d-3f7848dfa54b/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3f5ce1cb8e9d/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/3f5ce1cb8e9d41e779201fa63573230862cfb3aa0e0023ce82fd0ca4933bda77

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:INDICATOR_EXE_Packed_ConfuserEx
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:INDICATOR_EXE_Packed_ConfuserEx_Custom
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Custom; outside of GIT
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
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

File information

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

Malspam

QuasarRAT

Executable exe 3f5ce1cb8e9d41e779201fa63573230862cfb3aa0e0023ce82fd0ca4933bda77

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/29507/

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