MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f72153dbb753423e630840ed3674c6a0ce27b4ff5d1790a5bbb6d5707f9ed41e. 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 23 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f72153dbb753423e630840ed3674c6a0ce27b4ff5d1790a5bbb6d5707f9ed41e
SHA3-384 hash: 60bff0ca7e68d0cdd7ca1a2a66fb04af2beb77841c3ba94e794ca1b5e795db5decda72ec36b67a194daa3e8a6bb0edeb
SHA1 hash: b3d459fc6aef445528d51b7c52eb2655eec73e5d
MD5 hash: 47ded5abcb50869f822f2f871de0e264
humanhash: single-twelve-texas-march
File name:SynapseV3_betaRelease.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:3'266'048 bytes
First seen:2024-07-20 05:46:58 UTC
Last seen:Never
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:KvHI22SsaNYfdPBldt698dBcjHGDRJ6CbR3LoGdW6THHB72eh2NT:Kvo22SsaNYfdPBldt6+dBcjHGDRJ68m
Threatray 720 similar samples on MalwareBazaar
TLSH T17EE56B143BF85E27E1BBE277A5B0041267F0FC1AF363EB0B6581677A1C53B5098426A7
TrID 37.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
29.5% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
8.4% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
6.7% (.SCR) Windows screen saver (13097/50/3)
5.3% (.EXE) Win64 Executable (generic) (10523/12/4)
Reporter Chainskilabs
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
356
Origin country :
US US
Vendor Threat Intelligence
Detection(s):
Win.Malware.Generic-9883083-0
Create hunting rule

Win.Malware.Msilheracles-9900242-0
Create hunting rule

ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL
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Win.Packed.Downeks-6898097-0
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Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=669b4f58b302ab76f4480416
Tags:
Execution Generic Network Stealth Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching a process
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a file
Connection attempt
Setting a keyboard event handler
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Labled as:
Trojan.Agent
Link:
https://www.hybrid-analysis.com/sample/f72153dbb753423e630840ed3674c6a0ce27b4ff5d1790a5bbb6d5707f9ed41e
Result
Verdict:
MALICIOUS
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:
Quasar RAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fcca141b-f31a-4672-97f3-8ce64b37c42c
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1477159
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Generic Downloader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1477159 Sample: SynapseV3_betaRelease.exe Startdate: 20/07/2024 Architecture: WINDOWS Score: 100 34 Found malware configuration 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus / Scanner detection for submitted sample 2->38 40 6 other signatures 2->40 8 SynapseV3_betaRelease.exe 5 2->8         started        12 SynapseV3_betaRelease.exe 2 2->12         started        process3 file4 28 C:\Users\user\...\SynapseV3_betaRelease.exe, PE32 8->28 dropped 30 C:\Users\...\SynapseV3_betaRelease.exe.log, CSV 8->30 dropped 42 Uses schtasks.exe or at.exe to add and modify task schedules 8->42 44 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->44 14 SynapseV3_betaRelease.exe 8 8->14         started        18 schtasks.exe 1 8->18         started        20 SIHClient.exe 6 8->20         started        signatures5 process6 dnsIp7 32 192.168.56.1, 4782, 49730, 49737 unknown unknown 14->32 46 Antivirus detection for dropped file 14->46 48 Multi AV Scanner detection for dropped file 14->48 50 Machine Learning detection for dropped file 14->50 52 2 other signatures 14->52 22 schtasks.exe 1 14->22         started        24 conhost.exe 18->24         started        signatures8 process9 process10 26 conhost.exe 22->26         started       
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f72153dbb753423e630840ed3674c6a0ce27b4ff5d1790a5bbb6d5707f9ed41e
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f72153dbb753423e630840ed3674c6a0ce27b4ff5d1790a5bbb6d5707f9ed41e/
Threat name:
ByteCode-MSIL.Backdoor.Quasar
Create hunting rule
Status:
Malicious
First seen:
2024-04-24 04:34:58 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
29 of 38 (76.32%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=64qvhw5xknbd4yyiidwtm5ggudhcpnh7lulzbjn3w3kxa7462qpa._file
Verdict:
malicious
Similar samples:
15931de8e192e8932d881c6d450d52090f92f9b5e9f0f0b903cc5ec033b58b54
QuasarRAT
30c381a042e571d4d749f7aff6e1b17d77100ad35368c9a67136c1b5436c79cb
QuasarRAT
9409521653887ec13272edd26f3768efb6f176b49b15a058dfcf69b9172faece
QuasarRAT
ced760664a7c5580e324d99d695b119c1f3ec94d1d9c56d1d3882347f0c6eb10
QuasarRAT
f181b5a4e2f0dc0cdf70e16c18e3466e436aae0bb96ef9b7dc24c7f219167115
QuasarRAT
+ 710 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:office04 spyware trojan
Link:
https://tria.ge/reports/240720-ggvm5asejg/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Executes dropped EXE
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
192.168.56.1:4782
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/3658530d-0d01-4944-9539-8c34fcbcab66
Unpacked files
SH256 hash:
f72153dbb753423e630840ed3674c6a0ce27b4ff5d1790a5bbb6d5707f9ed41e
MD5 hash:
47ded5abcb50869f822f2f871de0e264
SHA1 hash:
b3d459fc6aef445528d51b7c52eb2655eec73e5d
Detections:
QuasarRAT
Create hunting rule
malware_windows_xrat_quasarrat
Create hunting rule
win_quasarrat_j2
Create hunting rule
cn_utf8_windows_terminal
Create hunting rule
MAL_QuasarRAT_May19_1
Create hunting rule
Link:
https://www.unpac.me/results/d2967de2-7bf1-4d7e-b09f-7b84cc94f6ed/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f72153dbb753/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/f72153dbb753423e630840ed3674c6a0ce27b4ff5d1790a5bbb6d5707f9ed41e

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:Diff_QuasarRAT_01
Create hunting rule
Author:schmidtsz
Description:Identify QuasarRAT samples
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_GENInfoStealer
Create hunting rule
Author:ditekSHen
Description:Detects executables containing common artifacts observed in infostealers
Rule name:MALWARE_Win_QuasarStealer
Create hunting rule
Author:ditekshen
Description:Detects Quasar infostealer
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Description:Detects QuasarRAT malware
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:MAL_QuasarRAT_May19_1_RID2E1E
Create hunting rule
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:RC6_Constants
Create hunting rule
Author:chort (@chort0)
Description:Look for RC6 magic constants in binary
Reference:https://twitter.com/mikko/status/417620511397400576
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Generic_Threat_803feff4
Create hunting rule
Author:Elastic Security
Rule name:win_quasar_rat_client
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in Quasar Rat Samples.

File information

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

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 (HIGH_ENTROPY_VA)high

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