MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dcbcfe00290d92cfea7ff37d322cf80991016d6379888cdaf27451c6543a894c. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: dcbcfe00290d92cfea7ff37d322cf80991016d6379888cdaf27451c6543a894c
SHA3-384 hash: 5cebebc1ff807af297a23a3ae1f06bcaf647e065f588743641eab1ecfb4aa40a1128ebe6403c0d70f372386a984a9576
SHA1 hash: e689e4b95e1adab3dc8b3aa86679de192f380577
MD5 hash: 8c7721a07d8a75318cd69d3e99e6f26f
humanhash: uniform-white-echo-robert
File name:3598_0010.xlsx.exe
Download: download sample
Signature DarkTortilla
Create hunting rule
File size:2'449'272 bytes
First seen:2024-11-11 15:45:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 49152:g/K22SdQ1bMbFg1Um7t/cxKlW667eR0HO8jgwCsyKlr2mgxvJ:g/K22Sd4nJ7t/tlNPjKlqhh
Threatray 25 similar samples on MalwareBazaar
TLSH T1EBB51247EA8698E6C66D1B3096BB327C21B1A6975940D7FE40C4C1F1CAB53CF26530EB
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
File icon (PE):PE icon
dhash icon b0585c7a7a5c58b0 (1 x DarkTortilla)
Reporter lowmal3
Tags:DarkTortilla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
381
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
3598_0010.xlsx.exe
Verdict:
Suspicious activity
Analysis date:
2024-11-11 15:50:17 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/799f0665-4105-446d-8c95-a99af027a958

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan-Spy.AgentTesla.23452.27113.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=673226f60d3694d4fc4e82ed
Tags:
underscore gumen
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Running batch commands
Launching a process
Creating a file
Enabling autorun
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/673226bd058cd3deb69e7c32/reports/0d756f75-5319-49d3-b614-a4dee535a09c/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/dcbcfe00290d92cfea7ff37d322cf80991016d6379888cdaf27451c6543a894c
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0c87d176-2c28-4c4b-a565-acdf36d83e0b
Result
Threat name:
DarkTortilla, Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1553731
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
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
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Creates an undocumented autostart registry key
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Sigma detected: Suspicious Double Extension File Execution
Uses an obfuscated file name to hide its real file extension (double extension)
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 Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1553731 Sample: 3598_0010.xlsx.exe Startdate: 11/11/2024 Architecture: WINDOWS Score: 100 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus detection for URL or domain 2->45 47 15 other signatures 2->47 7 3598_0010.xlsx.exe 3 2->7         started        process3 file4 31 C:\Users\user\...\3598_0010.xlsx.exe.log, ASCII 7->31 dropped 49 Hides that the sample has been downloaded from the Internet (zone.identifier) 7->49 51 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 7->51 11 cmd.exe 1 7->11         started        14 cmd.exe 3 7->14         started        signatures5 process6 file7 53 Uses ping.exe to sleep 11->53 55 Uses ping.exe to check the status of other devices and networks 11->55 17 reg.exe 1 1 11->17         started        20 PING.EXE 1 11->20         started        23 conhost.exe 11->23         started        33 C:\Users\user\AppData\Local\csrssx.exe, PE32 14->33 dropped 35 C:\Users\user\...\csrssx.exe:Zone.Identifier, ASCII 14->35 dropped 25 conhost.exe 14->25         started        27 PING.EXE 1 14->27         started        29 PING.EXE 1 14->29         started        signatures8 process9 dnsIp10 39 Creates an undocumented autostart registry key 17->39 37 127.0.0.1 unknown unknown 20->37 signatures11
Score:
96%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/dcbcfe00290d92cfea7ff37d322cf80991016d6379888cdaf27451c6543a894c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/dcbcfe00290d92cfea7ff37d322cf80991016d6379888cdaf27451c6543a894c/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3s6p4abjbwjm72t76n6telhybgiqc3ldpgeizwxsori4mvb2rfga._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
064deb3a049649824ba5fe40a83eb6331bd4178cb5b847c08940794106fc3870
DarkTortilla
0d4bf4e1a47fa2cfdb5cdc23d8a2b1552c1d82c307e1eec95297e62a478d2f2d
DarkTortilla
7a9cf1b27f192c4e65b215b4a126fac4aa8d34397d020568ba4590a15502cf9c
DarkTortilla
958e5d7947f48f2047ac3c595ee724a916c9969430731091ac1b9fcfaaf65d70
DarkTortilla
dcbcfe00290d92cfea7ff37d322cf80991016d6379888cdaf27451c6543a894c
DarkTortilla
error
DarkTortilla
+ 15 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery persistence
Link:
https://tria.ge/reports/241111-s7l98a1cqk/
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
Executes dropped EXE
Loads dropped DLL
Modifies WinLogon for persistence
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/9610fd66-04aa-43ef-beba-160a140f6b1c
Unpacked files
SH256 hash:
cba0ebe8f2bcbd1647a8dcc5fffdfdb1cfd67da77628254dd79017dbc30ba4d4
MD5 hash:
e152e7c9d2892661e9e9688894dba4f4
SHA1 hash:
3906d59fcf24989b89592a484d088e45a3e3f7ee
Link:
https://www.unpac.me/results/b68953f9-1991-4a32-9cbf-a9cd0fcd64f8/
SH256 hash:
22fa4e4712de45c6d8084ebc73dae59d8c45093e6e3121a7ca50742f4df9a952
MD5 hash:
f52b010aa1d9a933ff678177922c287e
SHA1 hash:
2b11dd7ec1a06ac5c976384da976f447a1f94d70
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_w0
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
Link:
https://www.unpac.me/results/b68953f9-1991-4a32-9cbf-a9cd0fcd64f8/
SH256 hash:
dcbcfe00290d92cfea7ff37d322cf80991016d6379888cdaf27451c6543a894c
MD5 hash:
8c7721a07d8a75318cd69d3e99e6f26f
SHA1 hash:
e689e4b95e1adab3dc8b3aa86679de192f380577
Link:
https://www.unpac.me/results/b68953f9-1991-4a32-9cbf-a9cd0fcd64f8/
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/dcbcfe00290d92cfea7ff37d322cf80991016d6379888cdaf27451c6543a894c

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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.

Malspam

DarkTortilla

Executable exe dcbcfe00290d92cfea7ff37d322cf80991016d6379888cdaf27451c6543a894c

(this sample)

  
Delivery method
Distributed via e-mail attachment

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 (GUARD_CF)high

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