MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6a3a4caaedc9479bbdd0a10e496b1502e8cdb1905ec365f1c737bb467ac95d3c. 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: 19


Intelligence 19 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6a3a4caaedc9479bbdd0a10e496b1502e8cdb1905ec365f1c737bb467ac95d3c
SHA3-384 hash: 3bfabfcfe56d262f9e20bd1a5dff742e464dfd770a64b40034e20459006296f6e01f728741981fcb6fe6882e4960dcf4
SHA1 hash: e199370616cb09cf3bda1d71603ec6b7e44d3a10
MD5 hash: 3b1b39de7bcb8bbec4b1b610cc7aefea
humanhash: foxtrot-winter-august-three
File name:LockerBuilder.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:1'416'704 bytes
First seen:2026-02-23 16:01:40 UTC
Last seen:2026-02-23 16:36:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'816 x AgentTesla, 19'736 x Formbook, 12'282 x SnakeKeylogger)
ssdeep 24576:FtC+SGWW19PKA+3E71c1e7o056PNLH6yFj6AhYPdZURS1QROKX7zgZ5+pxin:Fj7A61j56FLaU7YPPz1QRHXXgZ5G
Threatray 467 similar samples on MalwareBazaar
TLSH T12A65334366E8877BC190C9329B25965222B5F71743DCECBEF5006BF629792001EBFC99
TrID 73.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.6% (.EXE) Win64 Executable (generic) (6522/11/2)
4.5% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter abuse_ch
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
95
Origin country :
SE SE
Vendor Threat Intelligence
Malware configuration found for:
EvilCoder
Details
EvilCoder
extracted components, their filepaths, and possibly registry installation
Link:
https://research.acce.ciphertechsolutions.com/results/e76e65e7-cb26-4532-9a72-e8abb81359bb/
Malware family:
n/a
ID:
1
File name:
LockerBuilder.exe
Verdict:
Malicious activity
Analysis date:
2026-01-09 13:18:43 UTC
Tags:
auto-sch auto-reg uac xworm auto-startup crypto-regex pulsar rat
Link:
https://app.any.run/tasks/9afab2c2-93cc-48ea-a363-2dfd565e56d1

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/54294/
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69610033f50945831dff3cbe
Tags:
vmdetect autorun quasar
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Searching for synchronization primitives
Creating a window
Launching the default Windows debugger (dwwin.exe)
Creating a file in the Program Files subdirectories
Launching a process
Using the Windows Management Instrumentation requests
Creating a service
Enabling the 'hidden' option for recently created files
Launching a service
Searching for the window
DNS request
Connection attempt
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun for a service
Setting a single autorun event
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed vbnet
Link:
https://www.filescan.io/uploads/699c7a0910e80629d4ee9ce0/reports/a95abd30-efd4-4592-9e7c-83c7531df69d/overview
Verdict:
Malicious
Labled as:
Jalapeno.Generic
Link:
https://www.hybrid-analysis.com/sample/6a3a4caaedc9479bbdd0a10e496b1502e8cdb1905ec365f1c737bb467ac95d3c
Result
Gathering data
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-01-09T10:24:00Z UTC
Last seen:
2026-01-09T10:53:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/6a3a4caaedc9479bbdd0a10e496b1502e8cdb1905ec365f1c737bb467ac95d3c/results?tab=lookup
Malware family:
ModernLoader
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/73af68ff-8753-40ca-9a2d-80b4d6b50691
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
bank.troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1873576
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates an undocumented autostart registry key
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a browser helper object (BHO)
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1873576 Sample: LockerBuilder.exe Startdate: 23/02/2026 Architecture: WINDOWS Score: 100 74 tcp.cloudpub.ru 2->74 80 Found malware configuration 2->80 82 Malicious sample detected (through community Yara rule) 2->82 84 Antivirus detection for dropped file 2->84 86 7 other signatures 2->86 10 LockerBuilder.exe 4 2->10         started        13 Client.exe 2->13         started        16 svchost.exe 8 2->16         started        18 9 other processes 2->18 signatures3 process4 file5 66 C:\Users\user\AppData\...\degenebild.exe, PE32 10->66 dropped 68 C:\Users\user\AppData\...\LockerBuilder.exe, PE32 10->68 dropped 70 C:\Users\user\...\LockerBuilder.exe.log, CSV 10->70 dropped 20 degenebild.exe 9 8 10->20         started        24 LockerBuilder.exe 10->24         started        96 Creates an undocumented autostart registry key 13->96 98 Hides that the sample has been downloaded from the Internet (zone.identifier) 13->98 26 schtasks.exe 13->26         started        28 sc.exe 13->28         started        30 WerFault.exe 2 16->30         started        signatures6 process7 file8 64 C:\Program Files\SubDir\Client.exe, PE32 20->64 dropped 88 Antivirus detection for dropped file 20->88 90 Multi AV Scanner detection for dropped file 20->90 92 Creates an undocumented autostart registry key 20->92 94 3 other signatures 20->94 32 Client.exe 5 3 20->32         started        36 schtasks.exe 1 20->36         started        38 schtasks.exe 1 20->38         started        46 2 other processes 20->46 40 WerFault.exe 19 16 24->40         started        42 conhost.exe 26->42         started        44 conhost.exe 28->44         started        signatures9 process10 dnsIp11 72 tcp.cloudpub.ru 87.242.106.13, 48948, 49700, 49701 MASTERHOST-ASMoscowRussiaRU Russian Federation 32->72 76 Creates an undocumented autostart registry key 32->76 78 Hides that the sample has been downloaded from the Internet (zone.identifier) 32->78 48 schtasks.exe 32->48         started        50 sc.exe 32->50         started        52 conhost.exe 36->52         started        54 conhost.exe 38->54         started        56 conhost.exe 46->56         started        58 conhost.exe 46->58         started        signatures12 process13 process14 60 conhost.exe 48->60         started        62 conhost.exe 50->62         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6a3a4caaedc9479bbdd0a10e496b1502e8cdb1905ec365f1c737bb467ac95d3c
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6a3a4caaedc9479bbdd0a10e496b1502e8cdb1905ec365f1c737bb467ac95d3c/
Verdict:
Malicious
Threat:
Family.XWORM
Link:
https://tip.neiki.dev/file/6a3a4caaedc9479bbdd0a10e496b1502e8cdb1905ec365f1c737bb467ac95d3c
Threat name:
Win32.Trojan.XWormRAT
Create hunting rule
Status:
Malicious
First seen:
2026-01-09 13:18:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
29 of 38 (76.32%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ni5ezkxnzfdzxpoquehes2yvalum3mmql3bwl4ohg65um6wjlu6a._file
Verdict:
malicious
Label(s):
unc_loader_063
Create hunting rule
quasarrat
Create hunting rule
Similar samples:
0cfc66e78885ccb36151d2a8621b9c2c4c151d91a0a7415ce511c47a19f94f81
QuasarRAT
6a3a4caaedc9479bbdd0a10e496b1502e8cdb1905ec365f1c737bb467ac95d3c
QuasarRAT
c7f4e1aba81ad7714da4487dd279cc886b50428116b614c9ebe246d937c478f0
QuasarRAT
d356b8c6b75a1749f6100920d7317b09f5cead0fd21e4379b741a47548072f2b
QuasarRAT
dda8c6a69e8501ae0e368a93ed9c4098c0fb22bbc647cf4e6a7ffd6a7c0e9016
QuasarRAT
error
QuasarRAT
+ 457 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:office04 execution persistence privilege_escalation spyware trojan
Link:
https://tria.ge/reports/260223-tgye8sax3d/
Behaviour
Modifies registry class
Scheduled Task/Job: Scheduled Task
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Drops file in Program Files directory
Launches sc.exe
Adds Run key to start application
Checks computer location settings
Creates new service(s)
Drops startup file
Event Triggered Execution: Component Object Model Hijacking
Executes dropped EXE
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
tcp.cloudpub.ru:48948
Unpacked files
SH256 hash:
6a3a4caaedc9479bbdd0a10e496b1502e8cdb1905ec365f1c737bb467ac95d3c
MD5 hash:
3b1b39de7bcb8bbec4b1b610cc7aefea
SHA1 hash:
e199370616cb09cf3bda1d71603ec6b7e44d3a10
Link:
https://www.unpac.me/results/d822486a-845d-4e57-8349-e45b3b1976a5/
SH256 hash:
5ae96f22ca26141c4812dc135617f0b0cacfeead253e6827094bb7ca5ff51adc
MD5 hash:
03dd051659be80430b12eb3246030bee
SHA1 hash:
dec5ad4b0030de73ec1b2f801ab4663fadb93735
Detections:
QuasarRAT
Create hunting rule
cn_utf8_windows_terminal
Create hunting rule
malware_windows_xrat_quasarrat
Create hunting rule
MAL_QuasarRAT_May19_1
Create hunting rule
MAL_BackNet_Nov18_1
Create hunting rule
INDICATOR_EXE_Packed_Fody
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Link:
https://www.unpac.me/results/d822486a-845d-4e57-8349-e45b3b1976a5/
SH256 hash:
bc76dfc42bbeafb7b333104b1a4a93c416cfa3b44595245ab7eca1983108a832
MD5 hash:
f453e8c5d37eec428c5faabd45baa6d8
SHA1 hash:
f8a7c4dbd98583348800a039d070527937c1cd4d
Link:
https://www.unpac.me/results/d822486a-845d-4e57-8349-e45b3b1976a5/
SH256 hash:
700a6a60c0a92083db5718cc99c00c4ba1b263d0976c3992be78a254b0b32d16
MD5 hash:
2210afdff11e7b2136b73f50a6562dda
SHA1 hash:
3c69a9efe59ca79e90c8c885eca50bee25135f5e
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/d822486a-845d-4e57-8349-e45b3b1976a5/
SH256 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/d822486a-845d-4e57-8349-e45b3b1976a5/
Parent samples :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 hash:
4aed1286919d21f033edf132f3dea19913da1299ceee5dc10c69378ce979c208
MD5 hash:
fa53c8d80ef9c41b68f1ee77df25e110
SHA1 hash:
0ad6d05c18923517e05becef7576012b5ba0fb90
Link:
https://www.unpac.me/results/d822486a-845d-4e57-8349-e45b3b1976a5/
SH256 hash:
4c9615496970ea84320e2a6e99f8fb828e3c7790384df5585d93fc368885d94e
MD5 hash:
50e6524b7ee9c2c93f5210b63cb1ca54
SHA1 hash:
3e296ec3bb24750833ea80515e6fb4c73874c91a
Link:
https://www.unpac.me/results/d822486a-845d-4e57-8349-e45b3b1976a5/
SH256 hash:
bc0243134c93c55ea105d0e9c2a43b6030e973290d0a061cf3a61986a2268a88
MD5 hash:
d2edde626c241549eab636aa87fb5d38
SHA1 hash:
8d836febd477b3ec44cc37f4f0aecdaa1d7db788
Link:
https://www.unpac.me/results/d822486a-845d-4e57-8349-e45b3b1976a5/
SH256 hash:
37f1368e3cde7fbfc6803c0b36dbcc9fb27f3f60845adf8a863f5f1d81580057
MD5 hash:
f10d011681d5ad7b2344fd6beb0f1406
SHA1 hash:
c696c94f1853728c75fc923d4ebff9c13ff6d7fb
Link:
https://www.unpac.me/results/d822486a-845d-4e57-8349-e45b3b1976a5/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6a3a4caaedc9/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/6a3a4caaedc9479bbdd0a10e496b1502e8cdb1905ec365f1c737bb467ac95d3c

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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/54294/

Comments