MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5aa42451a5ac1ef0da91a240389b95cf535f34931f50540e4b3d6c38c9b68067. 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: 14


Intelligence 14 IOCs YARA 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5aa42451a5ac1ef0da91a240389b95cf535f34931f50540e4b3d6c38c9b68067
SHA3-384 hash: f9bf1aa6786a6d6c08e5aabe66ff8791b195cc73f98e883a83707b37984e8b223b98b86bd0427a8a4a9ca236bf3d2a28
SHA1 hash: 25654f0865a098d64bd4ae05f3ddacdc4d9fdc3b
MD5 hash: ca44df942cd6d19b5c91a61a1043a0e2
humanhash: juliet-friend-sad-robert
File name:Client.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:1'942'016 bytes
First seen:2025-11-22 23:56:18 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:XhqOZeSWeWBRYRR1qJvHIPbcNE0KKSb7yviUSQaBaOwIRxl2S62/9ns+j9mQkvwc:c7YReEwKKSb7L3wip6mqvw
TLSH T1E795BF243DEA5019F0B7AF74DBD0759A8B7FF223770A965E144102460E67B81EDCB23A
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 Hexastrike
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
18
Origin country :
IE IE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Nefikka.exe
Verdict:
Malicious activity
Analysis date:
2025-11-01 23:26:44 UTC
Tags:
auto-reg crypto-regex
Link:
https://app.any.run/tasks/281f13cc-ca09-4045-ba45-d1c051d97b20

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/39424/
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:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=690697349942f1282ecb43a0
Tags:
autorun packed spawn sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching a process
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a file
DNS request
Connection attempt
Setting a keyboard event handler
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm base64 hacktool obfuscated packed privilege quasarrat reconnaissance
Link:
https://www.filescan.io/uploads/692252b06a9db4642e0e79c5/reports/ff8d088d-f129-46dc-be01-a5924252773b/overview
Verdict:
Malicious
Labled as:
Trojan.Agent
Link:
https://www.hybrid-analysis.com/sample/5aa42451a5ac1ef0da91a240389b95cf535f34931f50540e4b3d6c38c9b68067
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-01T20:29:00Z UTC
Last seen:
2025-11-02T01:12:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/5aa42451a5ac1ef0da91a240389b95cf535f34931f50540e4b3d6c38c9b68067/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/03eba0d2-561c-43ad-b2be-8a049fb19b64
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/5aa42451a5ac1ef0da91a240389b95cf535f34931f50540e4b3d6c38c9b68067
Verdict:
inconclusive
YARA:
11 match(es)
Tags:
.Net Executable Fody/Costura Packer Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.16 SOS: 0.19 SOS: 0.20 SOS: 0.22 SOS: 0.23 SOS: 0.25 SOS: 0.26 SOS: 0.27 SOS: 0.29 SOS: 0.32 SOS: 0.34 SOS: 0.35 SOS: 0.61 Win 32 Exe x86
Link:
https://app.malva.re/file/ca44df942cd6d19b5c91a61a1043a0e2
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5aa42451a5ac1ef0da91a240389b95cf535f34931f50540e4b3d6c38c9b68067/
Verdict:
Malicious
Threat:
Trojan.MSIL.Quasar
Link:
https://tip.neiki.dev/file/5aa42451a5ac1ef0da91a240389b95cf535f34931f50540e4b3d6c38c9b68067
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-11-01 23:26:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lksciunfvqppbwurujadrg4vz5jv6netd5ifidslhvwdrsnwqbtq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
execution persistence
Link:
https://tria.ge/reports/251123-alhe2avras/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Executes dropped EXE
Verdict:
Malicious
Tags:
Win.Malware.Generic-9883083-0
YARA:
n/a
Link:
https://app.threat.zone/submission/76b49e06-2176-45cc-a509-73b9aabd064d
Unpacked files
SH256 hash:
5aa42451a5ac1ef0da91a240389b95cf535f34931f50540e4b3d6c38c9b68067
MD5 hash:
ca44df942cd6d19b5c91a61a1043a0e2
SHA1 hash:
25654f0865a098d64bd4ae05f3ddacdc4d9fdc3b
Link:
https://www.unpac.me/results/00de119a-29ce-4268-a4dc-2e31815902c0/
SH256 hash:
25654bb37f1247374916b140301f61d665238bb723d0c072560635b1f329b7e9
MD5 hash:
2358adfd8c5f1ef45b1cb094d9ddbf50
SHA1 hash:
786fadb531ee90fcfa63ded6f7dd0837b0ed5a3f
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/00de119a-29ce-4268-a4dc-2e31815902c0/
Parent samples :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 hash:
a0af255ea4b09a8cdb995b8c6fd1075e46f098e23c2351c974e6ded9b8b620cf
MD5 hash:
c52a44933d17d576d4c97b4cb0545841
SHA1 hash:
092696fdcc034910aa02c94a5c93f4e1e86e0c50
Detections:
SUSP_NET_Large_Static_Array_In_Small_File_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/00de119a-29ce-4268-a4dc-2e31815902c0/
Parent samples :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 hash:
4c9615496970ea84320e2a6e99f8fb828e3c7790384df5585d93fc368885d94e
MD5 hash:
50e6524b7ee9c2c93f5210b63cb1ca54
SHA1 hash:
3e296ec3bb24750833ea80515e6fb4c73874c91a
Link:
https://www.unpac.me/results/00de119a-29ce-4268-a4dc-2e31815902c0/
SH256 hash:
c9736bed57d137a0bd4a454a70436020312db5a365bdd243037e766695c18ccd
MD5 hash:
41b34eab1585d5381c56730b93dd1310
SHA1 hash:
510b640517342dbcc40c81b63db23fa1444a71ed
Link:
https://www.unpac.me/results/00de119a-29ce-4268-a4dc-2e31815902c0/
SH256 hash:
bc0243134c93c55ea105d0e9c2a43b6030e973290d0a061cf3a61986a2268a88
MD5 hash:
d2edde626c241549eab636aa87fb5d38
SHA1 hash:
8d836febd477b3ec44cc37f4f0aecdaa1d7db788
Link:
https://www.unpac.me/results/00de119a-29ce-4268-a4dc-2e31815902c0/
SH256 hash:
56f525e33494f4cd2a560a71cdf237303a3fb54a8fa44e1693eba35c9245c60a
MD5 hash:
07137e5cc4d5ecc95ca267c9dce042d4
SHA1 hash:
d82f5e3d718bc9172fcfe0e8c50cb20251762058
Link:
https://www.unpac.me/results/00de119a-29ce-4268-a4dc-2e31815902c0/
SH256 hash:
9429f05aa4ab1ef92a0237410ea103cffa406b071953d50f5e7a55496d517c02
MD5 hash:
1c2c6b341535661b7501f5c4a434a78e
SHA1 hash:
f45aefa816f86830bee41c0e5426e641d5af3c06
Link:
https://www.unpac.me/results/00de119a-29ce-4268-a4dc-2e31815902c0/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5aa42451a5ac/report/overview.html
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/5aa42451a5ac1ef0da91a240389b95cf535f34931f50540e4b3d6c38c9b68067

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_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: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: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/39424/

Comments