MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 468ba790ac48bf4dd494f11153ee26a5ea5a34da611a7f294f6917fa7ec107c4. 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: 19


Intelligence 19 IOCs YARA 26 File information Comments
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SHA256 hash: 468ba790ac48bf4dd494f11153ee26a5ea5a34da611a7f294f6917fa7ec107c4
SHA3-384 hash: 51a29157320c9a3568931241d59e2a6695cf7a31eceecf1ad594f31edcbb46e883509bc5def01427d5f36851323e6901
SHA1 hash: 63d86ca11a6a0c974581eec260ae56c4a20f5297
MD5 hash: 92b8bc434f0b908a5b23797d850b9cd5
humanhash: vermont-north-kitten-quiet
File name:Client-built.exe.bin
Download: download sample
Signature QuasarRAT
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File size:3'266'048 bytes
First seen:2025-03-16 11:46:47 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:uvtG42pda6D+/PjlLOlg6yQipVm6RJ6LbR3LoGd+THHB72eh2NT:uvE42pda6D+/PjlLOlZyQipVm6RJ6d
TLSH T175E56B143BF85E27E1BBE677A5B0041267F0FC1AF363EB0B6581677A1C53B5098026A7
TrID 40.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
31.6% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
9.0% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
5.7% (.EXE) Win64 Executable (generic) (10522/11/4)
3.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Magika pebin
Reporter KatzenTech
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
385
Origin country :
RU RU
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
Client-built.exe
Verdict:
Malicious activity
Analysis date:
2025-03-16 09:29:30 UTC
Tags:
autorun-reg quasar
Link:
https://app.any.run/tasks/01cc8fe1-29bb-4e74-9ea5-26192c1853ea

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67d6cb2808116ce425717665
Tags:
infosteal autorun quasar
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching a process
Enabling autorun by creating a file
Verdict:
Malicious
Labled as:
Trojan.Agent
Link:
https://www.hybrid-analysis.com/sample/468ba790ac48bf4dd494f11153ee26a5ea5a34da611a7f294f6917fa7ec107c4
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/78b91c44-6027-4277-bdbe-1220d41e8ea6
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1639859
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Sigma detected: Quasar
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1639859 Sample: Client-built.exe.bin.exe Startdate: 16/03/2025 Architecture: WINDOWS Score: 100 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus / Scanner detection for submitted sample 2->40 42 5 other signatures 2->42 8 Client-built.exe.bin.exe 5 2->8         started        12 Office.exe 3 2->12         started        process3 file4 26 C:\Users\user\AppData\Roaming\...\Office.exe, PE32 8->26 dropped 28 C:\Users\...\Client-built.exe.bin.exe.log, CSV 8->28 dropped 44 Uses schtasks.exe or at.exe to add and modify task schedules 8->44 46 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->46 14 Office.exe 2 8->14         started        18 schtasks.exe 1 8->18         started        signatures5 process6 dnsIp7 30 10.0.0.7, 4782, 52606, 52610 unknown unknown 14->30 32 10.127.0.59, 4782, 49695, 52608 unknown unknown 14->32 34 192.168.56.1, 4782, 52603, 52609 unknown unknown 14->34 48 Antivirus detection for dropped file 14->48 50 Multi AV Scanner detection for dropped file 14->50 52 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->52 54 Installs a global keyboard hook 14->54 20 schtasks.exe 1 14->20         started        22 conhost.exe 18->22         started        signatures8 process9 process10 24 conhost.exe 20->24         started       
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/468ba790ac48bf4dd494f11153ee26a5ea5a34da611a7f294f6917fa7ec107c4
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/468ba790ac48bf4dd494f11153ee26a5ea5a34da611a7f294f6917fa7ec107c4/
Threat name:
ByteCode-MSIL.Backdoor.Quasar
Create hunting rule
Status:
Malicious
First seen:
2025-03-16 09:29:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=i2f2pefmjc7u3veu6eivh3rguxvfung2menh6kkpnel7u7wba7ca._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
error
QuasarRAT
Result
Malware family:
quasar
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Score:
  10/10
Tags:
family:quasar botnet:officee spyware trojan
Link:
https://tria.ge/reports/250316-nxxkzstlx4/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Executes dropped EXE
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
10.127.0.59:4782
192.168.56.1:4782
10.0.0.7:4782
Verdict:
Malicious
Tags:
rat quasar_rat stealer Win.Malware.Generic-9883083-0
YARA:
malware_windows_quasarrat win_quasar_rat_client MAL_QuasarRAT_May19_1 MALWARE_Win_Quasarstealer
Link:
https://app.threat.zone/submission/7ad6dcf4-116c-4ac4-bd5f-51ecdb0b48c1
Unpacked files
SH256 hash:
468ba790ac48bf4dd494f11153ee26a5ea5a34da611a7f294f6917fa7ec107c4
MD5 hash:
92b8bc434f0b908a5b23797d850b9cd5
SHA1 hash:
63d86ca11a6a0c974581eec260ae56c4a20f5297
Detections:
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/7e5c5c9a-57f0-4778-9f8f-c07158e40fe9/
Malware family:
QuasarRAT
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/468ba790ac48/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/468ba790ac48bf4dd494f11153ee26a5ea5a34da611a7f294f6917fa7ec107c4

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
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Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:Detect_PowerShell_Obfuscation
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Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
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: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: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:quasarrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:quasarrat_kingrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
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

Comments