MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bc919d4fa285e2891889c6cf592c7f1707d69adead1af792e005e4d58cd02bbf. 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: 16


Intelligence 16 IOCs YARA 3 File information Comments
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SHA256 hash: bc919d4fa285e2891889c6cf592c7f1707d69adead1af792e005e4d58cd02bbf
SHA3-384 hash: 0ee858035f94d94f3c77583728c37a4769c587cd963141a04971434ba8077dd22658217710beb89e0492442a13d31fd4
SHA1 hash: 3be66ac0de38a8000c27caf22ad1d20412e6f772
MD5 hash: ae1cda4357c6e550c2b3696e85aaa626
humanhash: princess-maryland-five-burger
File name:killer.exe
Download: download sample
Signature XWorm
Create hunting rule
File size:471'040 bytes
First seen:2024-08-05 18:55:57 UTC
Last seen:2024-08-05 19:26:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:qsmovfhEkQhf5p4WYXC1JWxLj2+EHZFq:JwYXCnCLTaq
TLSH T1D6A4CE974CA4C5EACAA4F7BE403D9C9E2C162AA84DE72308444BDB953D380F477F1D69
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
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)
Reporter Chainskilabs
Tags:exe xworm

Intelligence

File Origin
# of uploads :
2
# of downloads :
377
Origin country :
RO RO
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
killer.exe
Verdict:
Malicious activity
Analysis date:
2024-08-05 18:58:42 UTC
Tags:
xworm amsi-bypass
Link:
https://app.any.run/tasks/4861549e-9c24-43bc-b8af-e6c0fe3ed9eb

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66b12049037b02d0daedcc2a
Tags:
Encryption Execution Network Stealth Trojan
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a file
Launching a process
Creating a process with a hidden window
Creating a file in the Windows subdirectories
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Creating a file in the system32 subdirectories
Setting browser functions hooks
Unauthorized injection to a recently created process
Connection attempt to an infection source
Forced shutdown of a system process
Enabling autorun by creating a file
Using obfuscated Powershell scripts
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed vbnet
Link:
https://www.filescan.io/uploads/66b12044e7dbbbdfcd096be8/reports/fa6a1b8e-7e9b-48ae-9e95-d03c328a6632/overview
Verdict:
Malicious
Labled as:
Jalapeno.Generic
Link:
https://www.hybrid-analysis.com/sample/bc919d4fa285e2891889c6cf592c7f1707d69adead1af792e005e4d58cd02bbf
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/60d74b02-bf4c-4c03-9c4b-858bee50446d
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1488323
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains process injector
.NET source code references suspicious native API functions
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Contains functionality to compare user and computer (likely to detect sandboxes)
Contains functionality to inject code into remote processes
Creates a thread in another existing process (thread injection)
Drops PE files to the user root directory
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Hooks files or directories query functions (used to hide files and directories)
Hooks processes query functions (used to hide processes)
Hooks registry keys query functions (used to hide registry keys)
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Installs new ROOT certificates
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Obfuscated command line found
Protects its processes via BreakOnTermination flag
Sample uses string decryption to hide its real strings
Sigma detected: Potential PowerShell Command Line Obfuscation
Sigma detected: Potential WinAPI Calls Via CommandLine
Suspicious powershell command line found
System process connects to network (likely due to code injection or exploit)
Uses schtasks.exe or at.exe to add and modify task schedules
Very long command line found
Writes to foreign memory regions
Yara detected Generic Downloader
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1488323 Sample: killer.exe Startdate: 05/08/2024 Architecture: WINDOWS Score: 100 58 wiz.bounceme.net 2->58 60 i.ibb.co 2->60 86 Found malware configuration 2->86 88 Malicious sample detected (through community Yara rule) 2->88 90 Antivirus detection for URL or domain 2->90 92 25 other signatures 2->92 9 powershell.exe 2 15 2->9         started        12 killer.exe 6 2->12         started        15 $77-Example.exe 1 2->15         started        signatures3 process4 file5 94 Writes to foreign memory regions 9->94 96 Modifies the context of a thread in another process (thread injection) 9->96 98 Found suspicious powershell code related to unpacking or dynamic code loading 9->98 100 Injects a PE file into a foreign processes 9->100 17 dllhost.exe 1 9->17         started        20 conhost.exe 9->20         started        44 C:\Users\user\AppData\Roaming\r77-x86.dll, PE32 12->44 dropped 46 C:\Users\user\AppData\Roaming\r77-x64.dll, PE32+ 12->46 dropped 48 C:\Users\user\AppData\Roaming\Install.exe, PE32 12->48 dropped 50 2 other malicious files 12->50 dropped 22 $77-Example.exe 14 4 12->22         started        26 Install.exe 1 12->26         started        102 Antivirus detection for dropped file 15->102 104 Machine Learning detection for dropped file 15->104 signatures6 process7 dnsIp8 68 Injects code into the Windows Explorer (explorer.exe) 17->68 70 Contains functionality to inject code into remote processes 17->70 72 Writes to foreign memory regions 17->72 82 3 other signatures 17->82 28 lsass.exe 17->28 injected 31 svchost.exe 17->31 injected 33 svchost.exe 17->33 injected 38 30 other processes 17->38 62 wiz.bounceme.net 65.191.34.109, 49707, 49719, 49728 TWC-11426-CAROLINASUS United States 22->62 64 147.185.221.18, 18746, 49705, 49715 SALSGIVERUS United States 22->64 66 4 other IPs or domains 22->66 42 C:\Users\user\$77-Example.exe, PE32 22->42 dropped 74 Antivirus detection for dropped file 22->74 76 Protects its processes via BreakOnTermination flag 22->76 78 Machine Learning detection for dropped file 22->78 84 2 other signatures 22->84 36 schtasks.exe 1 22->36         started        80 Multi AV Scanner detection for dropped file 26->80 file9 signatures10 process11 dnsIp12 106 Installs new ROOT certificates 28->106 108 Writes to foreign memory regions 28->108 110 System process connects to network (likely due to code injection or exploit) 31->110 52 wiznon.000webhostapp.com 33->52 54 wiz.bounceme.net 33->54 56 us-east-1.route-1.000webhost.awex.io 33->56 40 conhost.exe 36->40         started        signatures13 process14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/bc919d4fa285e2891889c6cf592c7f1707d69adead1af792e005e4d58cd02bbf
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bc919d4fa285e2891889c6cf592c7f1707d69adead1af792e005e4d58cd02bbf/
Threat name:
ByteCode-MSIL.Spyware.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2024-08-05 18:56:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
23 of 38 (60.53%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xsiz2t5cqxrisgejy3hvsld7c4d5ngw6vunppexaaxsnldgqfo7q._file
Verdict:
malicious
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm defense_evasion discovery evasion execution rat trojan
Link:
https://tria.ge/reports/240805-xlbzksvfjp/
Behaviour
Checks SCSI registry key(s)
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in System32 directory
Suspicious use of SetThreadContext
Command and Scripting Interpreter: PowerShell
Checks BIOS information in registry
Checks computer location settings
Executes dropped EXE
Indicator Removal: Clear Windows Event Logs
Detect Xworm Payload
Modifies security service
Suspicious use of NtCreateUserProcessOtherParentProcess
Xworm
Malware Config
C2 Extraction:
147.185.221.18:18746
wiz.bounceme.net:6000
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/b3d125e1-2c3b-4473-beb3-432b9a0ce637
Unpacked files
SH256 hash:
d4fb11747616ba1966aee3a944a867bfcab5036a531567d248c28e46e7d80f32
MD5 hash:
e8534ddf33bf85242048aaf5a67f5d28
SHA1 hash:
8ccf2a0eb86a7b3660c1840be34f842284190b38
Detections:
PureCrypter_Stage1
Create hunting rule
Link:
https://www.unpac.me/results/a7c38c6f-f5fc-464a-a24d-bb4fcdeb775e/
SH256 hash:
1b707a991a74025f244318e660d77aea86a1398b079471c023087be13206fa72
MD5 hash:
ec88823f338762f1b46f19846d9461de
SHA1 hash:
805e444f0e0ed095a095fae9a62d117fa88cc3d8
Link:
https://www.unpac.me/results/a7c38c6f-f5fc-464a-a24d-bb4fcdeb775e/
SH256 hash:
507f1bd9aa8f2450ccb087fe5202fefa64ddb942c95db679f3c4e930370e57a6
MD5 hash:
f20e35ae88b038aaff28f87739b49b7b
SHA1 hash:
55544635f79d315c432e7e57b613b71166a16f9e
Link:
https://www.unpac.me/results/a7c38c6f-f5fc-464a-a24d-bb4fcdeb775e/
SH256 hash:
bc919d4fa285e2891889c6cf592c7f1707d69adead1af792e005e4d58cd02bbf
MD5 hash:
ae1cda4357c6e550c2b3696e85aaa626
SHA1 hash:
3be66ac0de38a8000c27caf22ad1d20412e6f772
Link:
https://www.unpac.me/results/a7c38c6f-f5fc-464a-a24d-bb4fcdeb775e/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bc919d4fa285/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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.

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_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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