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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c66f94f6f054c6ca06e6561aed88fe54d1ea76bfeb8b5cd8a97c71590f08b063. 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


DarkTortilla


Vendor detections: 13


Intelligence 13 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c66f94f6f054c6ca06e6561aed88fe54d1ea76bfeb8b5cd8a97c71590f08b063
SHA3-384 hash: 2cc03b679e745aaa4aed0fd0fdebef3d7be6b7e6ceca974b3f08d4e05477d7a89c0c01f8f535387d4ab6f988f4005cf8
SHA1 hash: 83c5267cd046e6196095822a05b1f5a87241a452
MD5 hash: 1351e8e7bb03c7546fdb3f8b2c46ab96
humanhash: india-india-black-cold
File name:RFQ-PR-26400409.exe
Download: download sample
Signature DarkTortilla
Create hunting rule
File size:901'120 bytes
First seen:2026-10-14 18:10:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/vnd.microsoft.portable-executable
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'272 x AgentTesla, 20'615 x Formbook, 12'394 x SnakeKeylogger)
ssdeep 24576:mFjErQWEdrrGIszBTJpnZUgjk1vZW1aHkPd6Z2K8ji7n:DK2IszBTJp7jky1wkPd68
TLSH T1CC15BE1913F41B95F5BEEF3D9834101987FDB802D73AEA5F7D5890E90922B81CA52B23
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 threatcat_ch
Tags:DarkTortilla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
201
Origin country :
CH CH
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
261014-wr668sy1gz_pw_infected.zip
Verdict:
Malicious activity
Analysis date:
2026-10-14 18:17:55 UTC
Tags:
arch-exec netreactor
Link:
https://app.any.run/tasks/8988fe6f-25a0-402b-8048-7366970819b2

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/92066/
Detection(s):
SecuriteInfo.com.Variant.MSILHeracles.276980.99358637.UNOFFICIAL
Create hunting rule

Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating synchronization primitives
Running batch commands
Launching a process
Creating a file
Sending a custom TCP request
Creating a file in the %AppData% directory
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated obfuscated packed vbnet
Link:
https://www.filescan.io/uploads/6acfc591b909014cdae64001/reports/a690ad10-cc97-4f62-b9f7-1101f58d1293/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c66f94f6f054c6ca06e6561aed88fe54d1ea76bfeb8b5cd8a97c71590f08b063
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-10-14T08:36:00Z UTC
Last seen:
2026-10-15T15:51:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/c66f94f6f054c6ca06e6561aed88fe54d1ea76bfeb8b5cd8a97c71590f08b063/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/520683d9-92b0-4510-baf7-b18d65fd69f6
Result
Threat name:
DarkTortilla, XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1987251
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Drops PE files with benign system names
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
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
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: Files With System Process Name In Unsuspected Locations
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: System File Execution Location Anomaly
Suricata IDS alerts for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected DarkTortilla Crypter
Yara detected MSIL Injector
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1987251 Sample: RFQ-PR-26400409.exe Startdate: 14/10/2026 Architecture: WINDOWS Score: 100 63 keyauth.win 2->63 69 Suricata IDS alerts for network traffic 2->69 71 Found malware configuration 2->71 73 Malicious sample detected (through community Yara rule) 2->73 75 15 other signatures 2->75 11 RFQ-PR-26400409.exe 1 3 2->11         started        14 svchost.exe 2->14         started        16 svchost.exe 1 1 2->16         started        18 3 other processes 2->18 signatures3 process4 file5 61 C:\Users\user\...\RFQ-PR-26400409.exe.log, ASCII 11->61 dropped 20 cmd.exe 3 11->20         started        24 cmd.exe 1 11->24         started        26 MpCmdRun.exe 1 14->26         started        process6 file7 57 C:\Users\user\AppData\Roaming\SVCHOST.exe, PE32 20->57 dropped 59 C:\Users\user\...\SVCHOST.exe:Zone.Identifier, ASCII 20->59 dropped 79 Uses ping.exe to sleep 20->79 28 SVCHOST.exe 3 20->28         started        31 conhost.exe 20->31         started        33 PING.EXE 1 20->33         started        35 PING.EXE 1 20->35         started        81 Uses ping.exe to check the status of other devices and networks 24->81 83 Drops PE files with benign system names 24->83 37 PING.EXE 1 24->37         started        40 conhost.exe 24->40         started        42 conhost.exe 26->42         started        signatures8 process9 dnsIp10 85 Multi AV Scanner detection for dropped file 28->85 87 Writes to foreign memory regions 28->87 89 Injects a PE file into a foreign processes 28->89 44 InstallUtil.exe 2 3 28->44         started        65 127.0.0.1 unknown unknown 37->65 91 Installs a global keyboard hook 42->91 signatures11 process12 dnsIp13 67 43.228.157.81, 49724, 49727, 7007 GHOSTYNETWORKSUS Germany 44->67 93 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 44->93 95 Bypasses PowerShell execution policy 44->95 97 Tries to harvest and steal browser information (history, passwords, etc) 44->97 99 3 other signatures 44->99 48 powershell.exe 44->48         started        50 powershell.exe 44->50         started        signatures14 process15 process16 52 conhost.exe 48->52         started        55 conhost.exe 50->55         started        signatures17 77 Installs a global keyboard hook 52->77
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c66f94f6f054c6ca06e6561aed88fe54d1ea76bfeb8b5cd8a97c71590f08b063
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.83 Win 32 Exe x86
Link:
https://app.malva.re/file/1351e8e7bb03c7546fdb3f8b2c46ab96
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c66f94f6f054c6ca06e6561aed88fe54d1ea76bfeb8b5cd8a97c71590f08b063/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-10-14 11:37:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
18 of 23 (78.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yzxzj5xqktdmubxgkyno3ch6kti6u5v75ofvzwfjpryvsdyiwbrq._file
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm defense_evasion discovery execution persistence rat trojan
Link:
https://tria.ge/reports/261014-wr668sy1gz/
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Executes a command shell one-liner
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Enumerates video capture drivers
Suspicious use of SetThreadContext
Adds Run key to start application
.NET Reactor proctector
Executes a file named after a Windows system binary
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Family: Xworm
Malware Config
C2 Extraction:
43.228.157.81:7007
Unpacked files
SH256 hash:
c66f94f6f054c6ca06e6561aed88fe54d1ea76bfeb8b5cd8a97c71590f08b063
MD5 hash:
1351e8e7bb03c7546fdb3f8b2c46ab96
SHA1 hash:
83c5267cd046e6196095822a05b1f5a87241a452
Link:
https://www.unpac.me/results/f4e8fdb7-839c-41db-9331-93a7082d6870/
SH256 hash:
982d31cfd53db412b6efb9ea1f8687fe4139da213d249a7e6abfc860fffda18c
MD5 hash:
ed20027638513edff861923406f6c95a
SHA1 hash:
2405d4740a7249593edeedd9579c636b956aefb4
Detections:
INDICATOR_EXE_Packed_DotNetReactor
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/f4e8fdb7-839c-41db-9331-93a7082d6870/
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c66f94f6f054/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/c66f94f6f054c6ca06e6561aed88fe54d1ea76bfeb8b5cd8a97c71590f08b063

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:HUNT_NET_Loader_ImagePixel_To_AssemblyLoad
Create hunting rule
Author:Anish Bogati
Description:Hunting: .NET loader that reads pixel data from an embedded image, loads it as a .NET assembly, and runs it via reflection or late binding. Catches bitmap-steganography loaders.
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
Rule name:WIN_Malware_Derialock_ForgeAuto_3127f957_Extrait
Create hunting rule
Author:Marjoriefort
Description:Detects Derialock (pe, etat extrait)
Rule name:WIN_Malware_XWorm_ForgeAuto_6b06c990_Extrait
Create hunting rule
Author:Marjoriefort
Description:Detects XWorm (pe, etat extrait)

File information

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

Malspam

DarkTortilla

Executable exe c66f94f6f054c6ca06e6561aed88fe54d1ea76bfeb8b5cd8a97c71590f08b063

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/92066/

Comments