MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a44fd6518013d5ea59142ddefbcb835dcd3fb2bd671f19fb59fca75f85dbab45. 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: 12


Intelligence 12 IOCs YARA 27 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a44fd6518013d5ea59142ddefbcb835dcd3fb2bd671f19fb59fca75f85dbab45
SHA3-384 hash: 7be29183aa481b4801a35dff6037dfc32d55e2d80a946b9791f4f52c66060a95dfbe26ff2c601bd8306879b192b58b87
SHA1 hash: 923f355982fdd9522f9c8e8cd5e9b12cfd93fe5b
MD5 hash: ecc332f180aae3574d6ed0cbaf781e62
humanhash: saturn-friend-island-victor
File name:aIg_173_55.zip
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:1'218'470 bytes
First seen:2026-04-14 14:03:07 UTC
Last seen:Never
File type: zip
MIME type:application/zip
ssdeep 24576:eNMOUXMRZW8o5Ebxqko68bb3Zl9xenZTJ+HkIBdxLgbvQhWe6:sU2Uko68b3PnSTs3BLgbvmWe6
TLSH T1804533750C9F8F2DB10335713D64DF6C896BA912D0258818CDF3E749A961E8A1CF8FA9
Magika zip
Reporter BlinkzSec
Tags:QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
138
Origin country :
GB GB
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:aIg.exe
File size:3'269'632 bytes
SHA256 hash: 4d773635500042e760e8c76b6fba07c21f7261c40a0b021d429c1fb21fb473ff
MD5 hash: 4eaa74ab439af7eaa2e1bd6cff5dde60
MIME type:application/x-dosexec
Signature QuasarRAT
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/4fef2fb4-c8ec-4718-a208-b676e4fdebec/
Detection(s):
Win.Malware.Generic-9883083-0
Create hunting rule

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

ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL
Create hunting rule

Win.Packed.Downeks-6898097-0
Create hunting rule

YARA.DITEKSHEN_MALWARE_Win_Quasarstealer.UNOFFICIAL
Create hunting rule

YARA.SIGNATURE_BASE_MAL_Quasarrat_May19_1.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69de493f45787c53e539a16d
Tags:
infosteal quasar
Result
Verdict:
Malicious
File Type:
PE File
Link:
https://app.docguard.net/a44fd6518013d5ea59142ddefbcb835dcd3fb2bd671f19fb59fca75f85dbab45/results/dashboard
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm base64 certreq expand explorer fingerprint infostealer lolbin obfuscated obfuscated quasar quasarrat reconnaissance runonce schtasks soft-404 stealer
Link:
https://www.filescan.io/uploads/69de4c5b9124ebc08751fa61/reports/10593586-39a4-4200-89d1-70ba839712a1/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/a44fd6518013d5ea59142ddefbcb835dcd3fb2bd671f19fb59fca75f85dbab45
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/a44fd6518013d5ea59142ddefbcb835dcd3fb2bd671f19fb59fca75f85dbab45
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
File Type:
zip
First seen:
2026-04-01T23:49:00Z UTC
Last seen:
2026-04-14T11:47:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/a44fd6518013d5ea59142ddefbcb835dcd3fb2bd671f19fb59fca75f85dbab45/results?tab=lookup
Score:
100%
Verdict:
Malware
File Type:
ARCHIVE
Link:
https://malprob.io/report/a44fd6518013d5ea59142ddefbcb835dcd3fb2bd671f19fb59fca75f85dbab45
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a44fd6518013d5ea59142ddefbcb835dcd3fb2bd671f19fb59fca75f85dbab45/
Threat name:
ByteCode-MSIL.Backdoor.Quasar
Create hunting rule
Status:
Malicious
First seen:
2026-04-02 13:29:00 UTC
File Type:
Binary (Archive)
Extracted files:
3
AV detection:
28 of 36 (77.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=urh5mumacpk6uwiufxppxs4dlxgt7mv5m4prt62z7stv7bo3vncq._file
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:office04 discovery spyware trojan
Link:
https://tria.ge/reports/260414-rfbhzacw6k/
Behaviour
Runs ping.exe
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Network Configuration Discovery: Internet Connection Discovery
Checks computer location settings
Family: Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
jquery.js-library-host.com:28370
192.168.130.*:28370
192.168.129.*:28370
192.168.128.*:28370
192.168.144.*:28370
x.x.x.x:28370
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/a44fd6518013d5ea59142ddefbcb835dcd3fb2bd671f19fb59fca75f85dbab45

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
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: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: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)
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.

Web download

QuasarRAT

zip a44fd6518013d5ea59142ddefbcb835dcd3fb2bd671f19fb59fca75f85dbab45

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3821455/
  
Delivery method
Distributed via web download

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