MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 04e680c37b3e4dea85505d8b785912f9a9ad3c7bbfc440e1f1654fd06510bc3c. 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


Intelligence 15 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 04e680c37b3e4dea85505d8b785912f9a9ad3c7bbfc440e1f1654fd06510bc3c
SHA3-384 hash: 268748811c30fa500c6ffd7062e6b24cab82960cb03c01f01abc8703d100e7d711e25909282c031aa67f5032049181cd
SHA1 hash: 017a6997dc107006ce733f05aa8d7c4e07c3861a
MD5 hash: bbb5a3cbe5e6cbeaa01dd73ebdfc1ecf
humanhash: fifteen-sixteen-network-zebra
File name:skibtest.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:2'281'472 bytes
First seen:2025-09-16 07:42:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 49152:Ez7fRbirmGNn4+KK8U7Lbwa+bXaCgGXL:E/QhNnWK8U7LbwbrBg
TLSH T11DB5BF243DEA501AF1B7AF75DBD074CB8A6EF223770A965E145503460E23A41EEC723E
TrID 58.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
13.2% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
8.4% (.EXE) Win64 Executable (generic) (10522/11/4)
5.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
Reporter abuse_ch
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
80
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Fixed.bat
Verdict:
Malicious activity
Analysis date:
2025-09-15 23:49:35 UTC
Tags:
github loader
Link:
https://app.any.run/tasks/57d53c24-ee1a-4cab-9e78-a63d424dcbcc

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/27671/
Detection(s):
Win.Malware.Generic-9883083-0
Create hunting rule

Win.Malware.Bulz-9933026-0
Create hunting rule

Win.Malware.Generic-6623004-0
Create hunting rule

Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68c8a501e579c633a4b58338
Tags:
emotet packed micro remo
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Creating a file
Connection attempt to an infection source
DNS request
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Query of malicious DNS domain
Sending a TCP request to an infection source
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/04e680c37b3e4dea85505d8b785912f9a9ad3c7bbfc440e1f1654fd06510bc3c
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-15T20:55:00Z UTC
Last seen:
2025-09-15T20:55:00Z UTC
Hits:
~100
Detections:
Trojan.MSIL.Quasar.a HEUR:Trojan.MSIL.Quasar.gen Trojan.Agent.UDP.C&C PDM:Trojan.Win32.Generic Trojan-PSW.MSIL.Agent.sb
Link:
https://opentip.kaspersky.com/04e680c37b3e4dea85505d8b785912f9a9ad3c7bbfc440e1f1654fd06510bc3c/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f63f6f29-b87b-4f5a-9528-e9dcc35ac5fb
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1778277
Signature
.NET source code contains potential unpacker
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/04e680c37b3e4dea85505d8b785912f9a9ad3c7bbfc440e1f1654fd06510bc3c
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/04e680c37b3e4dea85505d8b785912f9a9ad3c7bbfc440e1f1654fd06510bc3c/
Verdict:
Malicious
Threat:
ByteCode-MSIL.Malware.Heuristic
Link:
https://tip.neiki.dev/file/04e680c37b3e4dea85505d8b785912f9a9ad3c7bbfc440e1f1654fd06510bc3c
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-09-15 23:45:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
32 of 38 (84.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=attibq33hzg6vbkqlwfxqwis7gu22pd3x7cebyprmvh5aziqxq6a._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
error
QuasarRAT
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/250916-jkas8shk7s/
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Executes dropped EXE
Verdict:
Malicious
Tags:
Win.Malware.Generic-9883083-0
YARA:
n/a
Link:
https://app.threat.zone/submission/90224eb1-4d66-42af-ab99-f8b6c05d56b0
Unpacked files
SH256 hash:
04e680c37b3e4dea85505d8b785912f9a9ad3c7bbfc440e1f1654fd06510bc3c
MD5 hash:
bbb5a3cbe5e6cbeaa01dd73ebdfc1ecf
SHA1 hash:
017a6997dc107006ce733f05aa8d7c4e07c3861a
Link:
https://www.unpac.me/results/fc97b589-2201-44b4-8422-214e7eb56070/
SH256 hash:
e54b3f90f18efaba3b4e714533d5e1f0aaf2f656b9166d6498e15b659cc41b8c
MD5 hash:
4a3c2b2b73407e79a9ebc6caece6c144
SHA1 hash:
70f64ab70fdc0c484da6f914d2742115c7a97141
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/fc97b589-2201-44b4-8422-214e7eb56070/
Parent samples :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 hash:
d5235265564f0bfd23b7279d7bdccc9ea6383ed07c5d0bfdf6c99029af9a2c0c
MD5 hash:
1d3dd9fcc077e6b4f88c05b9aef53ee6
SHA1 hash:
12b33858bc84f54b8aa8dbcb5a0ec2da043a6f66
Link:
https://www.unpac.me/results/fc97b589-2201-44b4-8422-214e7eb56070/
SH256 hash:
4a15409d3fc42c8b534a968dc038707d37685472f9d3fad1a8c16c9d122837d4
MD5 hash:
f99ddf03a201c6d48a1e5622d910586a
SHA1 hash:
2ab94e5f2c1cbbee401f8273cfe41f69cd9032ef
Link:
https://www.unpac.me/results/fc97b589-2201-44b4-8422-214e7eb56070/
SH256 hash:
ceed689891874eed41295189b2db3c187aabcfc90add5a1d2af96f078bcb4811
MD5 hash:
026a5bafe4ac686c01e9d56e00a87ab1
SHA1 hash:
a6ff2228e8114a2b4040d0ca137c4b544ff034f4
Link:
https://www.unpac.me/results/fc97b589-2201-44b4-8422-214e7eb56070/
SH256 hash:
6444c69f03a60a6de7d6dbd024214c55096b4c3a3313e17c476f777468227743
MD5 hash:
93f920953ccf34b320d4cef3ecd5d7b7
SHA1 hash:
c1916aa60806786a484da3d593eeb1178fa8a5bc
Link:
https://www.unpac.me/results/fc97b589-2201-44b4-8422-214e7eb56070/
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/04e680c37b3e4dea85505d8b785912f9a9ad3c7bbfc440e1f1654fd06510bc3c

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:Costura_Protobuf
Create hunting rule
Author:@bartblaze
Description:Identifies Costura and Protobuf in .NET assemblies, respectively for storing resources and (de)serialization. Seen together might indicate a suspect binary.
Rule name:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_EXE_Packed_Fody
Create hunting rule
Author:ditekSHen
Description:Detects executables manipulated with Fody
Rule name:Indicator_MiniDumpWriteDump
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects PE files and PowerShell scripts that use MiniDumpWriteDump either through direct imports or string references
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
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)

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/27671/

Comments