MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f78238db552a2bcab1a68fcf3df9fbae50bba3c44d3bda6b7dddcfc007eee046. 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: | f78238db552a2bcab1a68fcf3df9fbae50bba3c44d3bda6b7dddcfc007eee046 |
|---|---|
| SHA3-384 hash: | c934f6d07908acbda30e5db6115385f9bf091b5a1698dabd77759ff108ae258ea0f22b1783a3d4ea330c28367704f43f |
| SHA1 hash: | 0fa35cfc8be8175a4fe16239cb0421a8e607b06d |
| MD5 hash: | 27b327551331817c02b00f01727c720d |
| humanhash: | arizona-single-football-timing |
| File name: | file |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 2'613'248 bytes |
| First seen: | 2026-01-06 13:41:19 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger) |
| ssdeep | 49152:CKoL+2upjBVhbAbXMtQl/wLz8r5S5l7KdVSZ4eY83TAcm:CL+2upjBVGVl/lQrCSZ4183Dm |
| TLSH | T161C523853BFC4948F6BFAF702DB626648579B8A25D21EB5E05C5309C1930FD5ACA0F23 |
| TrID | 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 9.7% (.EXE) Win64 Executable (generic) (10522/11/4) 6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.1% (.EXE) Win32 Executable (generic) (4504/4/1) |
| Magika | pebin |
| Reporter |  Bitsight |
| Tags: | dropped-by-amadey exe fbf543 QuasarRAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
141
Origin country :
USVendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2026-01-06 13:43:16 UTC
Tags:
evasion uac stealer arch-doc
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
99.1%
Tags:
polazert packed virus micro
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file in the %temp% directory
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Creating a file
Using the Windows Management Instrumentation requests
Creating a window
Forced shutdown of a browser
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
adaptive-context anti-vm base64 evasive eventvwr fingerprint lolbin obfuscated packed privilege reconnaissance
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-01-06T10:52:00Z UTC
Last seen:
2026-01-07T18:23:00Z UTC
Hits:
~100
Detections:
Trojan-PSW.Win32.Stealer.sb Trojan-PSW.Win32.Coins.sb Trojan-PSW.Win32.Agent.sb Trojan-PSW.MSIL.Stealer.sb Trojan-Banker.MSIL.Evital.gen Trojan.Win32.Agent.sb HEUR:Exploit.MSIL.BypassUAC.c Trojan-Spy.Stealer.HTTP.C&C PDM:Trojan.Win32.Generic Trojan-Spy.Stealer.TCP.C&C
Verdict:
Suspicious
Score:
95%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
11 match(es)
Tags:
.Net Executable Fody/Costura Packer Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.00 SOS: 0.19 SOS: 0.32 Win 32 Exe x86
Verdict:
Malicious
Threat:
Trojan-PSW.MSIL.Stealer
Threat name:
ByteCode-MSIL.Infostealer.Polazert
Status:
Malicious
First seen:
2026-01-06 13:42:23 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
17 of 24 (70.83%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
7/10
Tags:
discovery spyware stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Browser Information Discovery
System Location Discovery: System Language Discovery
Looks up external IP address via web service
Reads user/profile data of web browsers
Verdict:
Malicious
Tags:
rat quasar_rat External_IP_Lookup
YARA:
win_quasar_rat_client
Unpacked files
SH256 hash:
f78238db552a2bcab1a68fcf3df9fbae50bba3c44d3bda6b7dddcfc007eee046
MD5 hash:
27b327551331817c02b00f01727c720d
SHA1 hash:
0fa35cfc8be8175a4fe16239cb0421a8e607b06d
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: | DetectEncryptedVariants |
|---|---|
| Author: | Zinyth |
| Description: | Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded |
| Rule name: | FreddyBearDropper |
|---|---|
| Author: | Dwarozh Hoshiar |
| Description: | Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip. |
| Rule name: | grakate_stealer_nov_2021 |
|---|
| Rule name: | INDICATOR_EXE_Packed_Fody |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables manipulated with Fody |
| 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: | INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer |
|---|---|
| Author: | ditekSHen |
| Description: | detects Windows exceutables potentially bypassing UAC using eventvwr.exe |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | NETexecutableMicrosoft |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | RANSOMWARE |
|---|---|
| Author: | ToroGuitar |
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | Sus_CMD_Powershell_Usage |
|---|---|
| Author: | XiAnzheng |
| Description: | May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP) |
| Rule name: | TelegramAPIMalware_PowerShell_EXE |
|---|---|
| Author: | @polygonben |
| Description: | Hunting for pwsh malware using Telegram for C2 |
| Rule name: | win_quasar_rat_client |
|---|---|
| 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
Dropped by
Amadey
Delivery method
Distributed via web download
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