MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 76766e12871cd38748d88240d7c6cecace6d495a2678b69dce0ab17d8763b7f1. 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: 13
| SHA256 hash: | 76766e12871cd38748d88240d7c6cecace6d495a2678b69dce0ab17d8763b7f1 |
|---|---|
| SHA3-384 hash: | df62490b24d9a2740b0b9bcde09fdcc05a279fb826845488bea3141b2f13e9c9b46cc039a989f922ee56b8c8d4d0447e |
| SHA1 hash: | f4c13eb356c0850c3a2f4d28473e5b8c18954cc6 |
| MD5 hash: | 25d4d6849f44b3451b768d08626bbeb9 |
| humanhash: | princess-five-sierra-oxygen |
| File name: | RatonClient.exe |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 18'120'704 bytes |
| First seen: | 2025-04-25 19:19:01 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 196608:KdF5oytM6QqOyjr2LF3Ye6YmnwqdU142Ua+FsbQ89G:C01cjSLFoBYmn5U1PosM |
| TLSH | T189079E01B7F88F26D0BE537594B611154BF1E89ABB62C64A714CF1AE2B727002A5733F |
| TrID | 72.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.3% (.EXE) Win64 Executable (generic) (10522/11/4) 4.9% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.4% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9) |
| Magika | pebin |
| Reporter |  LuRisa2 |
| Tags: | exe QuasarRAT RAT ratonrat |
Intelligence
File Origin
# of uploads :
1
# of downloads :
534
Origin country :
CAVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RatonClient.exe
Verdict:
Malicious activity
Analysis date:
2025-04-25 19:20:21 UTC
Tags:
evasion
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Detection(s):
Verdict:
Malicious
Score:
99.9%
Tags:
vmdetect quasar proxy
Result
Verdict:
Malware
Maliciousness:
Behaviour
Сreating synchronization primitives
Creating a window
Connection attempt to an infection source
Query of malicious DNS domain
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
agenttesla anti-vm danabot explorer fingerprint lolbin obfuscated quasar rat rat reconnaissance regedit remote wscript
Verdict:
Malicious
Labled as:
Trojan.Generic
Result
Threat name:
Nitol, SheetRat
Detection:
malicious
Classification:
troj
Score:
88 / 100
Signature
Antivirus / Scanner detection for submitted sample
Connects to many ports of the same IP (likely port scanning)
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Nitol
Yara detected SheetRat
Behaviour
Behavior Graph:
Score:
99%
Verdict:
Malware
File Type:
PE
Threat name:
ByteCode-MSIL.Infostealer.ClipBanker
Status:
Malicious
First seen:
2025-04-25 19:19:23 UTC
File Type:
PE (.Net Exe)
Extracted files:
93
AV detection:
21 of 24 (87.50%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
8/10
Tags:
persistence
Behaviour
Checks SCSI registry key(s)
Kills process with taskkill
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Enumerates connected drives
Looks up external IP address via web service
Checks computer location settings
Boot or Logon Autostart Execution: Active Setup
Verdict:
Malicious
Tags:
rat quasar_rat Win.Packed.Msilperseus-9956592-0 external_ip_lookup
YARA:
Quasar_RAT_1
Unpacked files
SH256 hash:
76766e12871cd38748d88240d7c6cecace6d495a2678b69dce0ab17d8763b7f1
MD5 hash:
25d4d6849f44b3451b768d08626bbeb9
SHA1 hash:
f4c13eb356c0850c3a2f4d28473e5b8c18954cc6
SH256 hash:
450302c26d7d3d22e2c82d9146af0b0b84d7482c7a859078b22795283a013f2a
MD5 hash:
4f430ad45c332d5d8fbb8cf8817af1b5
SHA1 hash:
50bcbc66899143561ff461a557d3703c994c8bf0
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
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: | AgentTesla_DIFF_Common_Strings_01 |
|---|---|
| Author: | schmidtsz |
| Description: | Identify partial Agent Tesla strings |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | INDICATOR_SUSPICIOUS_Binary_References_Browsers |
|---|---|
| Author: | ditekSHen |
| Description: | Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. |
| Rule name: | Jupyter_infostealer |
|---|---|
| Author: | CD_R0M_ |
| Description: | Rule for Jupyter Infostealer/Solarmarker malware from september 2021-December 2022 |
| Rule name: | Lumma_Stealer_Detection |
|---|---|
| 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: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | NETexecutableMicrosoft |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | Quasar_RAT_1 |
|---|---|
| Author: | Florian Roth (Nextron Systems) |
| Description: | Detects Quasar RAT |
| Reference: | https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf |
| Rule name: | Quasar_RAT_1 |
|---|---|
| Author: | @SOCRadar |
| Description: | Detects Quasar RAT |
| Rule name: | Quasar_RAT_1_RID2B54 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Quasar RAT |
| Reference: | https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf |
| Rule name: | RANSOMWARE |
|---|---|
| Author: | ToroGuitar |
| Rule name: | Rooter |
|---|---|
| Author: | Seth Hardy |
| Description: | Rooter |
| Rule name: | RooterStrings |
|---|---|
| Author: | Seth Hardy |
| Description: | Rooter Identifying Strings |
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | vmdetect |
|---|---|
| Author: | nex |
| Description: | Possibly employs anti-virtualization techniques |
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
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (GUARD_CF) | high |
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