MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8ca07bac80251aac5bae7418c53144e723c1750d400faaac1678c55457f0f64a. 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: 17


Intelligence 17 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8ca07bac80251aac5bae7418c53144e723c1750d400faaac1678c55457f0f64a
SHA3-384 hash: 221575ed085db5a474fa1d2ecb0c9252d9628063b1e5f977dfbd09a3c17052914c68552c964918612184ce6c0f83e643
SHA1 hash: 792577bca0368b0077b852545d0b2dfe2d4ba2d3
MD5 hash: db35c8de0eae7f15c3b355cb2a3bd38b
humanhash: uranus-solar-stairway-two
File name:db35c8de0eae7f15c3b355cb2a3bd38b.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:3'909'120 bytes
First seen:2025-07-29 13:46:41 UTC
Last seen:2025-07-29 15:24:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash a9c887a4f18a3fede2cc29ceea138ed3 (33 x CoinMiner, 17 x AsyncRAT, 15 x BlankGrabber)
ssdeep 98304:afYVOgR8eNB1KGTFT4YZ4lXJz/SSakqUGQ:gYn9K0it/SSn
Threatray 1 similar samples on MalwareBazaar
TLSH T1070623BDEC34E8D3C2B440B2E37D884E02519DC2BF4FB95B779576152B700A9AA5BB40
TrID 38.5% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
15.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
11.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
10.5% (.EXE) Win32 Executable (generic) (4504/4/1)
4.8% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
dhash icon 58c8d1d0cecbeeec (18 x AsyncRAT, 9 x XWorm, 6 x QuasarRAT)
Reporter abuse_ch
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
26
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
596c56af-652f-436d-a1d1-e5c7700ff741
Verdict:
Malicious activity
Analysis date:
2025-07-28 18:07:34 UTC
Tags:
amadey botnet stealer loader stealc evasion golang rdp auto-startup xmrig telegram python auto-reg lumma miner pastebin silentcryptominer websocket vidar quasar rat
Link:
https://app.any.run/tasks/596c56af-652f-436d-a1d1-e5c7700ff741

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/17562/
Detection(s):
SecuriteInfo.com.Trojan.PWS.StealerNET.124.31435.25446.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6888d0ecaf3050dc8d3214fc
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file
Launching a process
Creating a window
Сreating synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% directory
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6888d0f001e814b1f00a3dc2/reports/04499718-419f-4e57-aa4d-ad2d204571c1/overview
Verdict:
Malicious
Labled as:
FakeAlert.Generic
Link:
https://www.hybrid-analysis.com/sample/8ca07bac80251aac5bae7418c53144e723c1750d400faaac1678c55457f0f64a
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/281be502-9fe7-4f4c-9da0-dea8b37b5dcd
Result
Threat name:
Chrome Injector, Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1746330
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates a thread in another existing process (thread injection)
Drops PE files to the user root directory
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries memory information (via WMI often done to detect virtual machines)
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: System File Execution Location Anomaly
Suricata IDS alerts for network traffic
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected Chrome Injector
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1746330 Sample: oeWhmQOvtE.exe Startdate: 29/07/2025 Architecture: WINDOWS Score: 100 57 api.telegram.org 2->57 63 Suricata IDS alerts for network traffic 2->63 65 Found malware configuration 2->65 67 Malicious sample detected (through community Yara rule) 2->67 71 13 other signatures 2->71 9 oeWhmQOvtE.exe 3 2->9         started        signatures3 69 Uses the Telegram API (likely for C&C communication) 57->69 process4 file5 45 C:\Users\user\rundll32.exe, PE32 9->45 dropped 47 C:\Users\user\AppData\...\Vru917Gx.1uW.exe, PE32+ 9->47 dropped 75 Drops PE files to the user root directory 9->75 13 Vru917Gx.1uW.exe 19 9->13         started        17 rundll32.exe 4 9->17         started        signatures6 process7 file8 49 \Device\ConDrv, ASCII 13->49 dropped 77 Multi AV Scanner detection for dropped file 13->77 79 Writes to foreign memory regions 13->79 81 Allocates memory in foreign processes 13->81 89 2 other signatures 13->89 19 powershell.exe 26 13->19         started        23 chrome.exe 1 13->23         started        25 curl.exe 1 13->25         started        28 2 other processes 13->28 51 C:\Users\user\AppData\...\rundll32.exe, PE32 17->51 dropped 83 Antivirus detection for dropped file 17->83 85 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 17->85 87 Queries memory information (via WMI often done to detect virtual machines) 17->87 91 2 other signatures 17->91 signatures9 process10 dnsIp11 43 C:\Users\user\...\user_RavenStealer.zip, Zip 19->43 dropped 73 Loading BitLocker PowerShell Module 19->73 30 conhost.exe 19->30         started        32 chrome.exe 23->32         started        35 WerFault.exe 2 23->35         started        37 chrome.exe 23->37         started        59 api.telegram.org 149.154.167.220, 443, 49716 TELEGRAMRU United Kingdom 25->59 61 127.0.0.1 unknown unknown 25->61 39 conhost.exe 25->39         started        41 msedge.exe 28->41         started        file12 signatures13 process14 dnsIp15 53 googlehosted.l.googleusercontent.com 32->53 55 clients2.googleusercontent.com 32->55
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8ca07bac80251aac5bae7418c53144e723c1750d400faaac1678c55457f0f64a
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) Win 32 Exe x86
Link:
https://app.malva.re/file/db35c8de0eae7f15c3b355cb2a3bd38b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8ca07bac80251aac5bae7418c53144e723c1750d400faaac1678c55457f0f64a/
Verdict:
Malicious
Threat:
Trojan.MSIL.Quasar
Link:
https://tip.neiki.dev/file/8ca07bac80251aac5bae7418c53144e723c1750d400faaac1678c55457f0f64a
Threat name:
Win32.Dropper.Dapato
Create hunting rule
Status:
Malicious
First seen:
2025-07-28 08:51:23 UTC
File Type:
PE (Exe)
Extracted files:
11
AV detection:
32 of 38 (84.21%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rsqhxleaeunkyw5ooqmmkmke44r4c5iniah2vlawpdcviv7q6zfa._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
8ca07bac80251aac5bae7418c53144e723c1750d400faaac1678c55457f0f64a
QuasarRAT
error
QuasarRAT
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery execution
Link:
https://tria.ge/reports/250729-q3phnshl4z/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Checks for VirtualBox DLLs, possible anti-VM trick
Drops file in Program Files directory
Checks computer location settings
Executes dropped EXE
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/40658b3a-7397-4cfc-9b73-b851e7f2b76a
Unpacked files
SH256 hash:
8ca07bac80251aac5bae7418c53144e723c1750d400faaac1678c55457f0f64a
MD5 hash:
db35c8de0eae7f15c3b355cb2a3bd38b
SHA1 hash:
792577bca0368b0077b852545d0b2dfe2d4ba2d3
Link:
https://www.unpac.me/results/f34342ba-67bd-4ec2-bf1a-fde3b358f4a1/
SH256 hash:
d51b08d171ca0d7660182e28d1b238d3c37631e5758f94129bc917ac5f9f1b40
MD5 hash:
d98447e1c5618170d6c5501a556118ad
SHA1 hash:
17b51a02c8ef094462a81937d65b9ca9a237bd7b
Link:
https://www.unpac.me/results/f34342ba-67bd-4ec2-bf1a-fde3b358f4a1/
SH256 hash:
be25f9ef559ff74a5e4ef95df58aca2bfdf64c9a4437975db626b78ad732eb87
MD5 hash:
d83115b550e6fd946a77e95fcd6888e6
SHA1 hash:
3d0a7b78604f35069df1930201b399ba4c0682a6
Link:
https://www.unpac.me/results/f34342ba-67bd-4ec2-bf1a-fde3b358f4a1/
SH256 hash:
c1046a94e4042f0a622670cd6a01ca235609732d8ef68889e87fc947d754c5f5
MD5 hash:
8f786e161e0925e8a7c5602f64fff988
SHA1 hash:
4f90a7c051bb4a8e95a43916a4e979b1daadfffa
Detections:
SUSP_NET_Large_Static_Array_In_Small_File_Jan24
Create hunting rule
HKTL_NET_GUID_Quasar
Create hunting rule
Link:
https://www.unpac.me/results/f34342ba-67bd-4ec2-bf1a-fde3b358f4a1/
Parent samples :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 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/8ca07bac80251aac5bae7418c53144e723c1750d400faaac1678c55457f0f64a

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:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

QuasarRAT

Executable exe 8ca07bac80251aac5bae7418c53144e723c1750d400faaac1678c55457f0f64a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3592691/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/17562/

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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
SHELL_APIManipulates System Shellshell32.dll::ShellExecuteA

Comments