MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6bbe903a9cac83eb79a16f05b00ab6342861811f2ceb879177f36133f9237906. 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


XWorm


Vendor detections: 18


Intelligence 18 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6bbe903a9cac83eb79a16f05b00ab6342861811f2ceb879177f36133f9237906
SHA3-384 hash: a8c64c5a0b455206033e8f78cb93567cdf922944b5a94c567baf128e37bbf733fbfa2f30b9a33a6f9c4acc39e6ade123
SHA1 hash: 5a10554e3cfb139ccc1480a7c113e3c38a732b35
MD5 hash: e4c9f74b18816d73ab04ad016fc579ae
humanhash: coffee-mike-apart-kitten
File name:Zamówienie - 00500262026 - LVS Polska SA.pdf(68KB).com
Download: download sample
Signature XWorm
Create hunting rule
File size:644'096 bytes
First seen:2026-02-09 08:07:27 UTC
Last seen:2026-02-18 14:01:19 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'861 x AgentTesla, 19'793 x Formbook, 12'305 x SnakeKeylogger)
ssdeep 12288:0aDrj/roSUdKxuNHK67OUXEsJCW4AIjX2hD0FLoDEA:b/kfd1HK6/XZfSpF8E
TLSH T1E5D4BE1523D84B68F8BFA738B479111447F1F81E8B22EA2E7F9951E90865F4CC5A2733
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter Anonymous
Tags:cbzr-98pq1-ydns-eu exe xworm

Intelligence

File Origin
# of uploads :
3
# of downloads :
146
Origin country :
PL PL
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
Zamwienie-00500262026-LVSPolskaSA.pdf68KB.com
Verdict:
Malicious activity
Analysis date:
2026-02-09 07:54:21 UTC
Tags:
netreactor auto-reg auto-startup loader
Link:
https://app.any.run/tasks/968a1d24-02c0-4342-b8bb-721b68f7d559

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/52744/
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.49177122.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=698992ad42fd65534ccdcb3c
Tags:
virus smtp remo
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Creating a file
Launching a process
Creating a process with a hidden window
DNS request
Connection attempt
Sending an HTTP GET request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
crypt masquerade obfuscated obfuscated packed vbnet
Link:
https://www.filescan.io/uploads/698995f2930564ff3c938a52/reports/6f55bf08-7e25-4de6-a7ac-5430e1f42880/overview
Verdict:
Malicious
Labled as:
Trojan.MSIL.Basic.8
Link:
https://www.hybrid-analysis.com/sample/6bbe903a9cac83eb79a16f05b00ab6342861811f2ceb879177f36133f9237906
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-02-09T04:07:00Z UTC
Last seen:
2026-02-11T05:28:00Z UTC
Hits:
~100
Detections:
Trojan.MSIL.Agent.sb Backdoor.Win32.Androm Trojan-Downloader.Win32.PsDownload.sb Trojan.Win32.Agent.sb PDM:Exploit.Win32.Generic Trojan-Dropper.Win32.Injector.sb Backdoor.MSIL.XWorm.b Backdoor.Agent.TCP.C&C Backdoor.Win32.Remcos.f Trojan.MSIL.Inject.sb Trojan.MSIL.Inject.b Backdoor.MSIL.XWorm.a Trojan.Win32.Mucc.sb Exploit.Win32.BypassUAC.sb Backdoor.Win32.Remcos.sb PDM:Trojan.Win32.Generic HEUR:Backdoor.MSIL.XWorm.gen HEUR:Trojan.MSIL.Quasar.gen HEUR:Backdoor.MSIL.Remcos.gen VHO:Backdoor.Win32.Androm.gen VHO:Backdoor.Win32.Remcos.gen
Link:
https://opentip.kaspersky.com/6bbe903a9cac83eb79a16f05b00ab6342861811f2ceb879177f36133f9237906/results?tab=lookup
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/29fa6b45-bad6-4b49-9089-c3f14cff6722
Result
Threat name:
DarkTortilla, PureLog Stealer, Quasar, R
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1865933
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates multiple autostart registry keys
Encrypted powershell cmdline option found
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Powershell drops PE file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Net WebClient Casing Anomalies
Submitted file has a suspicious file extension
Suricata IDS alerts for network traffic
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected DarkTortilla Crypter
Yara detected PureLog Stealer
Yara detected Quasar RAT
Yara detected Remcos RAT
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1865933 Sample: Zam#U00f3wienie - 005002620... Startdate: 09/02/2026 Architecture: WINDOWS Score: 100 124 cbzr-98pq1.ydns.eu 2->124 126 friendly.ydns.eu 2->126 142 Submitted file has a suspicious file extension 2->142 144 Suricata IDS alerts for network traffic 2->144 146 Found malware configuration 2->146 148 18 other signatures 2->148 13 Zam#U00f3wienie - 00500262026 - LVS Polska SA.pdf(68KB).com 3 2->13         started        17 USB.exe 2->17         started        19 Document.exe 2->19         started        21 3 other processes 2->21 signatures3 process4 file5 122 Zam#U00f3wienie - ...A.pdf(68KB).com.log, ASCII 13->122 dropped 174 Hides that the sample has been downloaded from the Internet (zone.identifier) 13->174 176 Injects a PE file into a foreign processes 13->176 23 Zam#U00f3wienie - 00500262026 - LVS Polska SA.pdf(68KB).com 1 13->23         started        26 Zam#U00f3wienie - 00500262026 - LVS Polska SA.pdf(68KB).com 13->26         started        28 Zam#U00f3wienie - 00500262026 - LVS Polska SA.pdf(68KB).com 13->28         started        30 Zam#U00f3wienie - 00500262026 - LVS Polska SA.pdf(68KB).com 13->30         started        178 Antivirus detection for dropped file 17->178 32 cmd.exe 17->32         started        34 Document.exe 19->34         started        36 cmd.exe 21->36         started        38 Notepad.exe 21->38         started        40 2 other processes 21->40 signatures6 process7 signatures8 150 Encrypted powershell cmdline option found 23->150 42 powershell.exe 15 19 23->42         started        152 Uses ping.exe to sleep 32->152 47 conhost.exe 32->47         started        49 PING.EXE 32->49         started        51 conhost.exe 36->51         started        53 PING.EXE 36->53         started        process9 dnsIp10 132 friendly.ydns.eu 158.94.209.179, 49696, 80 JANETJiscServicesLimitedGB United Kingdom 42->132 116 C:\Users\user\AppData\Roaming\CH3.exe, PE32 42->116 dropped 118 C:\Users\user\AppData\Roaming\CH1.exe, PE32 42->118 dropped 120 C:\Users\user\AppData\Local\Temp\CH2.exe, PE32 42->120 dropped 172 Powershell drops PE file 42->172 55 CH2.exe 4 42->55         started        58 CH1.exe 3 42->58         started        60 CH3.exe 3 42->60         started        62 conhost.exe 42->62         started        file11 signatures12 process13 signatures14 154 Antivirus detection for dropped file 55->154 156 Hides that the sample has been downloaded from the Internet (zone.identifier) 55->156 64 cmd.exe 55->64         started        68 cmd.exe 55->68         started        158 Uses schtasks.exe or at.exe to add and modify task schedules 58->158 160 Injects a PE file into a foreign processes 58->160 70 CH1.exe 58->70         started        162 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 60->162 72 CH3.exe 60->72         started        process15 dnsIp16 110 C:\Users\user\AppData\Roaming\USB\USB.exe, PE32 64->110 dropped 134 Uses ping.exe to sleep 64->134 75 USB.exe 64->75         started        78 conhost.exe 64->78         started        80 PING.EXE 64->80         started        82 PING.EXE 64->82         started        136 Uses ping.exe to check the status of other devices and networks 68->136 84 reg.exe 68->84         started        86 PING.EXE 68->86         started        89 conhost.exe 68->89         started        112 C:\Users\user\AppData\Roaming\...112otepad.exe, PE32 70->112 dropped 138 Hides that the sample has been downloaded from the Internet (zone.identifier) 70->138 91 Notepad.exe 70->91         started        93 schtasks.exe 70->93         started        130 cbzr-98pq1.ydns.eu 178.16.52.243, 4055, 49699 DUSNET-ASDE Germany 72->130 114 C:\Users\user\AppData\Roaming\Document.exe, PE32 72->114 dropped 140 Creates multiple autostart registry keys 72->140 file17 signatures18 process19 dnsIp20 95 cmd.exe 75->95         started        164 Creates multiple autostart registry keys 84->164 128 127.0.0.1 unknown unknown 86->128 166 Antivirus detection for dropped file 91->166 168 Hides that the sample has been downloaded from the Internet (zone.identifier) 91->168 170 Injects a PE file into a foreign processes 91->170 98 Notepad.exe 91->98         started        100 Notepad.exe 91->100         started        102 Notepad.exe 91->102         started        104 conhost.exe 93->104         started        signatures21 process22 signatures23 180 Uses ping.exe to sleep 95->180 106 conhost.exe 95->106         started        108 PING.EXE 95->108         started        process24
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6bbe903a9cac83eb79a16f05b00ab6342861811f2ceb879177f36133f9237906
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.84 Win 32 Exe x86
Link:
https://app.malva.re/file/e4c9f74b18816d73ab04ad016fc579ae
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6bbe903a9cac83eb79a16f05b00ab6342861811f2ceb879177f36133f9237906/
Verdict:
Malicious
Threat:
Family.QUASAR
Link:
https://tip.neiki.dev/file/6bbe903a9cac83eb79a16f05b00ab6342861811f2ceb879177f36133f9237906
Threat name:
Win32.Trojan.Egairtigado
Create hunting rule
Status:
Malicious
First seen:
2026-02-09 07:54:23 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=no7jaou4vsb6w6nbn4c3acvwgqugdai7ftvypelx6nqth6jdpeda._file
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:quasar family:xworm botnet:welcome defense_evasion discovery execution persistence rat spyware trojan
Link:
https://tria.ge/reports/260209-j1px4agt6h/
Behaviour
Runs ping.exe
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Obfuscated Files or Information: Command Obfuscation
.NET Reactor proctector
Checks computer location settings
Drops startup file
Executes dropped EXE
Badlisted process makes network request
Downloads MZ/PE file
Detect Xworm Payload
Quasar RAT
Quasar family
Quasar payload
Xworm
Xworm family
Malware Config
C2 Extraction:
cbzr-98pq1.ydns.eu:4055
:2026
cbzr-98pq1.ydns.eu:4045
code1.ydns.eu:9302
Unpacked files
SH256 hash:
6bbe903a9cac83eb79a16f05b00ab6342861811f2ceb879177f36133f9237906
MD5 hash:
e4c9f74b18816d73ab04ad016fc579ae
SHA1 hash:
5a10554e3cfb139ccc1480a7c113e3c38a732b35
Link:
https://www.unpac.me/results/4f002e45-1552-4683-878f-1ad384cbfc06/
SH256 hash:
b0ed34436b2692757531296110c0ed964e73355d781af1aaa6f6e538cc06dd23
MD5 hash:
2cb79877409a9bb86092810209de4a9f
SHA1 hash:
02113c03091b72921a5b5b22d9145ceed5580b89
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
INDICATOR_EXE_Packed_DotNetReactor
Create hunting rule
Link:
https://www.unpac.me/results/4f002e45-1552-4683-878f-1ad384cbfc06/
Parent samples :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 hash:
ce6e97f0fceeb68aec45dc7fd84f2ac1c9daec284d52551f852ff42669d883f8
MD5 hash:
1f4a4be8df6bd4a7437b514b45ed8b80
SHA1 hash:
a2c19836919fc00f4f082a345afb6b3f9509a82e
Link:
https://www.unpac.me/results/4f002e45-1552-4683-878f-1ad384cbfc06/
SH256 hash:
d477fb4f33c70b76b04f97d8142495a1ea95f56599026758c6bda3497b94f21e
MD5 hash:
10d2d421f3af641a2fa0d01b92cebf20
SHA1 hash:
aeab2fd9ce92bc6690103d984992da1609cfb5fb
Link:
https://www.unpac.me/results/4f002e45-1552-4683-878f-1ad384cbfc06/
SH256 hash:
d6b2ceed508ab3117356c177e624fb97b298890c7a15d64c09409cc77d54cdf6
MD5 hash:
bd1a055ca19b8934cbb1eff05b21f321
SHA1 hash:
c1c9e3838e4397cb49d92bfdd6f94254dfd95abc
Link:
https://www.unpac.me/results/4f002e45-1552-4683-878f-1ad384cbfc06/
SH256 hash:
694e2ce81e04d40d9960513f8ec5e1705efc4a4831a10bcfdf0e3af2bc7b5119
MD5 hash:
db3ab8f24e81b10ebdb6769139cdcd6e
SHA1 hash:
cf5106eb911bc7a1f7a086cbeeb4a33dceb9be5c
Link:
https://www.unpac.me/results/4f002e45-1552-4683-878f-1ad384cbfc06/
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6bbe903a9cac/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/6bbe903a9cac83eb79a16f05b00ab6342861811f2ceb879177f36133f9237906

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: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: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/52744/

Comments