MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c5df359c7b21d6544c166cf142071d68a028f429ff47e80b8e855b9bc02decfd. 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


NanoCore


Vendor detections: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c5df359c7b21d6544c166cf142071d68a028f429ff47e80b8e855b9bc02decfd
SHA3-384 hash: 1ea923b0724b39a842772b8ff91b7a2718995fcaabff2462a949e64428a798879703344e4b93086465331b0606ecb987
SHA1 hash: 02b81ba768bccc33ea9fb6551b748ffbf35e030e
MD5 hash: b2c297a69ab55d611c5d8bb4ccb7c1ec
humanhash: johnny-winter-autumn-earth
File name:MT42002601.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:175'616 bytes
First seen:2022-05-24 12:33:09 UTC
Last seen:2022-05-24 13:49:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 384:JBfU3NCqGlVyfpXbQLuX3ka6LMdxFY0x0fvC:JBQbX3kandxFYkz
Threatray 17'324 similar samples on MalwareBazaar
TLSH T159043C889C5CC51CEE29FAB10933D170CE2AFFCABA4C9A96E144FBD6397012146DD875
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon b9dc8cccdeded9b8 (12 x AgentTesla, 7 x Formbook, 7 x NanoCore)
Reporter lowmal3
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
2
# of downloads :
325
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
MT42002601.exe
Verdict:
Malicious activity
Analysis date:
2022-05-25 03:18:41 UTC
Tags:
trojan rat agenttesla opendir stealer nanocore
Link:
https://app.any.run/tasks/b273fad4-fb7b-4b6e-a312-b6da71a3e928

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/274070/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a custom TCP request
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/628cd0be6eb3ff3263279f6c/reports/a313fa17-3b3a-411a-ae97-9a57487aaf51/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bb81eed0-067b-45ff-8d44-2454c9ee75fc
Result
Threat name:
Nanocore, AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1000617
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates multiple autostart registry keys
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Injects files into Windows application
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: NanoCore
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected Generic Downloader
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 633109 Sample: MT42002601.exe Startdate: 24/05/2022 Architecture: WINDOWS Score: 100 63 Multi AV Scanner detection for domain / URL 2->63 65 Found malware configuration 2->65 67 Malicious sample detected (through community Yara rule) 2->67 69 11 other signatures 2->69 8 MT42002601.exe 16 8 2->8         started        13 excel.exe 2->13         started        15 task.exe 14 2 2->15         started        17 2 other processes 2->17 process3 dnsIp4 59 3.70.157.79, 49725, 49727, 49728 AMAZON-02US United States 8->59 47 C:\Users\user\AppData\Local\note\task.exe, PE32 8->47 dropped 49 C:\Users\user\...\Dpqnqualcleaner1.exe, PE32 8->49 dropped 51 C:\Users\user\...\task.exe:Zone.Identifier, ASCII 8->51 dropped 53 C:\Users\user\AppData\...\MT42002601.exe.log, ASCII 8->53 dropped 83 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->83 85 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->85 87 Creates multiple autostart registry keys 8->87 89 Injects a PE file into a foreign processes 8->89 19 MT42002601.exe 2 5 8->19         started        24 Dpqnqualcleaner1.exe 14 4 8->24         started        26 cmd.exe 1 8->26         started        91 Machine Learning detection for dropped file 13->91 93 Injects files into Windows application 13->93 file5 signatures6 process7 dnsIp8 57 45.133.1.41, 49729, 49734, 49735 DEDIPATH-LLCUS Netherlands 19->57 43 C:\Users\user\AppData\Roaming\...\excel.exe, PE32 19->43 dropped 45 C:\Users\user\...\excel.exe:Zone.Identifier, ASCII 19->45 dropped 71 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 19->71 73 Tries to steal Mail credentials (via file / registry access) 19->73 75 Creates multiple autostart registry keys 19->75 81 3 other signatures 19->81 77 Machine Learning detection for dropped file 24->77 79 Injects a PE file into a foreign processes 24->79 28 Dpqnqualcleaner1.exe 24->28         started        33 cmd.exe 24->33         started        35 conhost.exe 26->35         started        37 timeout.exe 1 26->37         started        file9 signatures10 process11 dnsIp12 61 163.123.142.161, 141 ILIGHT-NETUS Reserved 28->61 55 C:\Users\user\AppData\Roaming\...\run.dat, data 28->55 dropped 95 Hides that the sample has been downloaded from the Internet (zone.identifier) 28->95 39 conhost.exe 33->39         started        41 timeout.exe 1 33->41         started        file13 signatures14 process15
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c5df359c7b21d6544c166cf142071d68a028f429ff47e80b8e855b9bc02decfd/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-05-24 12:34:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yxptlhd3ehlfitawntyueby5ncqcr5bj75d6qc4oqvnzxqbn5t6q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
12debb5b625d08f6bc4dd6160435cfde52a33c11dccd4b10fa07c225aba9565b
NanoCore
191e0b6b997739d71b92939ca736a43be3e742aa1b8baf025b5f9114f1f3e7ae
NanoCore
2aa8f6347e3d331950c557528790162d59d5607fadbb111e1cefad5a34ba6cd9
NanoCore
4097d7bdbe0b5665b4e59568b0eafc0d5514b36245445deb38e88911ed90417c
NanoCore
7ffa5fb65cb420698a4d9f54c52bc97d5bd4ac30813c727381d3bec8d3a0e192
NanoCore
9ff2100c715968d4554aa592c0df35b387ada038e016c109a5d6f52e91c09d21
NanoCore
b64081fc4a7dc5e73ab017b1f0453c27d5e6040134dd269bc01de45cad3713b7
NanoCore
b789ea800e24253ead1c150643aa729e7b7d5253bf6319aa4321680c615b8ec2
NanoCore
+ 17'314 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:nanocore collection evasion keylogger persistence spyware stealer suricata trojan
Link:
https://tria.ge/reports/220524-prq2paadf2/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks whether UAC is enabled
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Checks computer location settings
Loads dropped DLL
Reads data files stored by FTP clients
Executes dropped EXE
AgentTesla
NanoCore
suricata: ET MALWARE AgentTesla Communicating with CnC Server
Malware Config
C2 Extraction:
http://45.133.1.41/max/inc/8a37641a98efbd.php
163.123.142.161:141
Unpacked files
SH256 hash:
c5df359c7b21d6544c166cf142071d68a028f429ff47e80b8e855b9bc02decfd
MD5 hash:
b2c297a69ab55d611c5d8bb4ccb7c1ec
SHA1 hash:
02b81ba768bccc33ea9fb6551b748ffbf35e030e
Link:
https://www.unpac.me/results/8511667e-c5c0-41da-83bd-0504e905785f/
Malware family:
AgentTesla.v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c5df359c7b21/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/c5df359c7b21d6544c166cf142071d68a028f429ff47e80b8e855b9bc02decfd

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:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
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

NanoCore

Executable exe c5df359c7b21d6544c166cf142071d68a028f429ff47e80b8e855b9bc02decfd

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/274070/

Comments