MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3197bbcbf5856ae6299d8fa7da4c4313d75f01713739c2e49eaf716372f17edf. 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: 18


Intelligence 18 IOCs YARA 7 File information Comments

SHA256 hash: 3197bbcbf5856ae6299d8fa7da4c4313d75f01713739c2e49eaf716372f17edf
SHA3-384 hash: 3100bea4cdb5a8959bcfdbae3fbbf2a8b0643b0bac500ab138eed6c25c3bf8f951399fbefbf94d1a59c071cb88e6d506
SHA1 hash: 91f7ec07f77a08f4a68005eec41d9be71c2075bd
MD5 hash: c3b4b99d56e31b6d1f2192a415a1c7de
humanhash: colorado-harry-spaghetti-alabama
File name:Cuenta por Pagar Cliente BBVA_______________________pdf.exe
Download: download sample
Signature DarkTortilla
File size:1'608'192 bytes
First seen:2025-09-27 13:16:31 UTC
Last seen:2025-10-09 14:59:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:NUhHgw0AifmdMo8s74iDRo5UIe0b4KT4yHH67SM4XIuioH/:MHPieX8sESuBe0iSM4vD
Threatray 7 similar samples on MalwareBazaar
TLSH T16B75643CEEC83236E5B7967AC9F505CABE517843366A5C0E449B03860D53F97BE8211E
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 abuse_ch
Tags:BBVA DarkTortilla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
82
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Cuenta por Pagar Cliente BBVA_______________________pdf.exe
Verdict:
Suspicious activity
Analysis date:
2025-09-27 13:17:44 UTC
Tags:
netreactor auto-reg

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Tags:
underscore micro shell spawn
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
base64 masquerade obfuscated obfuscated vbnet
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-25T14:09:00Z UTC
Last seen:
2025-09-25T14:09:00Z UTC
Hits:
~1000
Detections:
Trojan.Win32.Mucc.sb Trojan.MSIL.Inject.b Trojan.MSIL.Crypt.sb VHO:Trojan-PSW.MSIL.DarkCloud.gen PDM:Trojan.Win32.Generic HEUR:Trojan.MSIL.Inject.gen Trojan-PSW.Win32.Stealer.sb Trojan.MSIL.Inject.c HEUR:Trojan.MSIL.Crypt.gen Backdoor.MSIL.XWorm.b
Result
Threat name:
DarkTortilla, XWorm
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
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
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
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected AntiVM3
Yara detected DarkTortilla Crypter
Yara detected XWorm
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1785209 Sample: Cuenta por Pagar Cliente BB... Startdate: 27/09/2025 Architecture: WINDOWS Score: 100 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 11 other signatures 2->51 7 Cuenta por Pagar Cliente BBVA_______________________pdf.exe 3 2->7         started        process3 file4 33 Cuenta por Pagar C...________pdf.exe.log, ASCII 7->33 dropped 53 Hides that the sample has been downloaded from the Internet (zone.identifier) 7->53 11 cmd.exe 3 7->11         started        15 cmd.exe 1 7->15         started        signatures5 process6 file7 35 C:\Users\user\AppData\Roaming\newapp.exe, PE32 11->35 dropped 37 C:\Users\user\...\newapp.exe:Zone.Identifier, ASCII 11->37 dropped 55 Uses ping.exe to sleep 11->55 17 newapp.exe 2 11->17         started        20 conhost.exe 11->20         started        22 PING.EXE 1 11->22         started        24 PING.EXE 1 11->24         started        57 Uses ping.exe to check the status of other devices and networks 15->57 26 PING.EXE 1 15->26         started        29 conhost.exe 15->29         started        31 reg.exe 1 1 15->31         started        signatures8 process9 dnsIp10 41 Multi AV Scanner detection for dropped file 17->41 43 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->43 39 127.0.0.1 unknown unknown 26->39 signatures11
Verdict:
inconclusive
YARA:
11 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.84 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2025-09-25 18:13:25 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Result
Malware family:
darktortilla
Score:
  10/10
Tags:
family:darktortilla crypter discovery loader persistence
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Adds Run key to start application
.NET Reactor proctector
Executes dropped EXE
Darktortilla
Darktortilla family
Detects Darktortilla crypter.
Unpacked files
SH256 hash:
3197bbcbf5856ae6299d8fa7da4c4313d75f01713739c2e49eaf716372f17edf
MD5 hash:
c3b4b99d56e31b6d1f2192a415a1c7de
SHA1 hash:
91f7ec07f77a08f4a68005eec41d9be71c2075bd
SH256 hash:
15b30c685ad4a24667cc2571b7ea1ba82bcacbba508cca1ae80fee1e88ebc0a7
MD5 hash:
09d093f888bad789c47bbe1aebf68213
SHA1 hash:
105721fd549aa4b557e4c887d238cdfd8836deae
Detections:
win_xworm_a0 win_xworm_w0 win_xworm_bytestring win_mal_XWorm INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA MALWARE_Win_AsyncRAT MALWARE_Win_XWorm
SH256 hash:
8e9a295434bf88eb2d537c44014c06bafcbf0a3d5043e5a6bb358b0bdced8af7
MD5 hash:
22ecaf55ed1e83953500c5406fbbd585
SHA1 hash:
5ff72e328bc76dbf3015d1d5665e93213c7aa3f2
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24 INDICATOR_EXE_Packed_DotNetReactor
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:CP_AllMal_Detector
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
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.

Comments