MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 cf074b9eaad872281fca4a15ff70507bcf1b8cd904b8175bba9f352021495b33. 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: 15
| SHA256 hash: | cf074b9eaad872281fca4a15ff70507bcf1b8cd904b8175bba9f352021495b33 |
|---|---|
| SHA3-384 hash: | c12f7fcc9132ed3f41d21a714ad1d3de65e104c776bd1206fc4eae8fdd9b5466453eeb6e5cc7ab097f91d19b027b0158 |
| SHA1 hash: | 12bdaeec1a59e079a0d6ddca94bda3078c862875 |
| MD5 hash: | 1e1f1336dd0fd523d8bea4dad1c963a3 |
| humanhash: | double-cup-kilo-december |
| File name: | 1e1f1336dd0fd523d8bea4dad1c963a3.exe |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 2'404'936 bytes |
| First seen: | 2026-08-16 02:30:06 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 2057790ae7855765d51bdc4142e62f9c (80 x RemusStealer, 8 x ValleyRAT, 6 x SalatStealer) |
| ssdeep | 49152:YKA5/fB6UeT+uXEkjNERBHLuyd6a2UXd33Rz4+:YKApa+uUkjiBHLuysOnz4+ |
| TLSH | T1ACB5F045A3F884A8F1B7AA389DB24B41DA32BC859A31DB4F1258755F1F33680DD35B23 |
| TrID | 93.7% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39) 2.3% (.EXE) Win64 Executable (generic) (6522/11/2) 1.7% (.EXE) Win16 NE executable (generic) (5038/12/1) 0.7% (.EXE) OS/2 Executable (generic) (2029/13) 0.7% (.EXE) Generic Win/DOS Executable (2002/3) |
| Magika | pebin |
| dhash icon | 9494b494d4aeaeac (919 x DCRat, 486 x NirCmd, 172 x RedLineStealer) |
| Reporter |  abuse_ch |
| Tags: | exe QuasarRAT RAT |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| 82.66.176.223:6666 | https://threatfox.abuse.ch/ioc/1876988/ |
Intelligence
File Origin
# of uploads :
1
# of downloads :
288
Origin country :
NLVendor Threat Intelligence
No detections
Malware family:
quasar
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-08-16 02:38:18 UTC
Tags:
auto-reg evasion rat quasar remote
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
QuasarRAT
Verdict:
Malicious
Score:
97.4%
Tags:
infosteal autorun quasar
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Launching a process
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
adaptive-context anti-debug explorer fingerprint installer-heuristic lolbin microsoft_visual_cc overlay packed packed quasarrat quasarrat reconnaissance remoteaccesstool
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-08-11T13:17:00Z UTC
Last seen:
2026-08-16T13:33:00Z UTC
Hits:
~10
Verdict:
Malicious
Result
Threat name:
Quasar
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
Antivirus detection for dropped file
Drops PE files with benign system names
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
Potential Privilege Escalation using Task Scheduler highest RunLevel
Sample uses string decryption to hide its real strings
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Schedule system process
Sigma detected: System File Execution Location Anomaly
Suricata IDS alerts for network traffic
System process connects to network (likely due to code injection or exploit)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Score:
18%
Verdict:
Benign
File Type:
PE
Gathering data
Threat name:
ByteCode-MSIL.Backdoor.Quasar
Status:
Suspicious
First seen:
2026-08-13 11:22:20 UTC
AV detection:
16 of 38 (42.11%)
Threat level:
5/5
Detection(s):
Malicious file
Result
Malware family:
quasar
Score:
10/10
Tags:
family:quasar botnet:office04 discovery execution persistence spyware trojan
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Looks up external IP address via web service
Checks computer location settings
Executes dropped EXE
Family: Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
82.66.176.223:6666
Unpacked files
SH256 hash:
cf074b9eaad872281fca4a15ff70507bcf1b8cd904b8175bba9f352021495b33
MD5 hash:
1e1f1336dd0fd523d8bea4dad1c963a3
SHA1 hash:
12bdaeec1a59e079a0d6ddca94bda3078c862875
Malware family:
QuasarRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
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: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DetectEncryptedVariants |
|---|---|
| Author: | Zinyth |
| Description: | Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | pe_detect_tls_callbacks |
|---|
| Rule name: | RIPEMD160_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for RIPEMD-160 constants |
| Rule name: | SelfExtractingRAR |
|---|---|
| Author: | Xavier Mertens |
| Description: | Detects an SFX archive with automatic script execution |
| Rule name: | SHA1_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA1 constants |
| Rule name: | TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE |
|---|---|
| Author: | CYFARE |
| Description: | Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments |
| Reference: | https://cyfare.net/ |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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