MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c5f8a57e9e252306e9876a01fbc423420693bf04cf7c33fb0bbf972e34299f21. 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


AgentTesla


Vendor detections: 16


Intelligence 16 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c5f8a57e9e252306e9876a01fbc423420693bf04cf7c33fb0bbf972e34299f21
SHA3-384 hash: d6ccad058dae4c07ca60432cf1ff61ef9f00fbb16f09bf7c8c2db32b5eed42305c0a4a1956b5791316d2feacf9ff30c7
SHA1 hash: f264db763cacbcbc6620353097b1cd6367d14afb
MD5 hash: 439c8eaf5105f874659e06ecca63e66b
humanhash: leopard-hawaii-golf-pennsylvania
File name:439c8eaf5105f874659e06ecca63e66b
Download: download sample
Signature AgentTesla
Create hunting rule
File size:25'600 bytes
First seen:2023-02-24 14:33:02 UTC
Last seen:2023-02-24 16:29:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'473 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 96:1Nd/FIveD4XyrmRNb++DvI63LilNRZjHgnmXV/cfDj6hLGkZNiRB4e3T3e4KxJdv:bxFIqmA62lNTDcmXZCehLrZbxJX
Threatray 958 similar samples on MalwareBazaar
TLSH T109B22F01A798D338FC573E34AD6756B00BBAEDC98822AF9F984075D6BC7A344C696350
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) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 72690d69690d6972 (8 x AgentTesla, 6 x Smoke Loader, 2 x PureCrypter)
Reporter zbetcheckin
Tags:32 AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
214
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
439c8eaf5105f874659e06ecca63e66b
Verdict:
Malicious activity
Analysis date:
2023-02-24 14:35:21 UTC
Tags:
trojan rat agenttesla stealer opendir
Link:
https://app.any.run/tasks/0edb190e-2307-4e30-babb-e3822e02788a

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/369498/
Detection(s):
Sanesecurity.Malware.28933.BadIN.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Creating a window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63f8caa5589e1e4c5bd8b924/reports/5c4c7ef9-ba09-47ee-b509-922c84238105/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/c5f8a57e9e252306e9876a01fbc423420693bf04cf7c33fb0bbf972e34299f21
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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4164e409-5fa4-4376-bb22-acf3105d2557
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1181941
Signature
Antivirus detection for URL or domain
Encrypted powershell cmdline option found
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
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)
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
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 Costura Assembly Loader
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 814772 Sample: uWaMeYyzOQ.exe Startdate: 24/02/2023 Architecture: WINDOWS Score: 100 57 Snort IDS alert for network traffic 2->57 59 Multi AV Scanner detection for domain / URL 2->59 61 Antivirus detection for URL or domain 2->61 63 5 other signatures 2->63 7 uWaMeYyzOQ.exe 15 4 2->7         started        12 nEdIOIr.exe 14 4 2->12         started        14 nEdIOIr.exe 3 2->14         started        process3 dnsIp4 55 www.ugr.leszczynskie.net 185.11.102.185, 49695, 49699, 49700 SEA-AB-ASSE Poland 7->55 41 C:\Users\user\AppData\...\uWaMeYyzOQ.exe.log, ASCII 7->41 dropped 75 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->75 77 May check the online IP address of the machine 7->77 79 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->79 16 uWaMeYyzOQ.exe 2 10 7->16         started        21 powershell.exe 16 7->21         started        81 Multi AV Scanner detection for dropped file 12->81 83 Machine Learning detection for dropped file 12->83 85 Encrypted powershell cmdline option found 12->85 23 nEdIOIr.exe 12->23         started        25 powershell.exe 13 12->25         started        87 Injects a PE file into a foreign processes 14->87 27 nEdIOIr.exe 14->27         started        29 powershell.exe 14->29         started        file5 signatures6 process7 dnsIp8 43 dropbuyinc.ga 185.246.221.63, 49697, 49698, 49703 LVLT-10753US Germany 16->43 45 api4.ipify.org 64.185.227.155, 443, 49696, 49702 WEBNXUS United States 16->45 53 2 other IPs or domains 16->53 37 C:\Users\user\AppData\Roaming\...\nEdIOIr.exe, PE32 16->37 dropped 39 C:\Users\user\...\nEdIOIr.exe:Zone.Identifier, ASCII 16->39 dropped 65 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->65 67 Tries to steal Mail credentials (via file / registry access) 16->67 69 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->69 31 conhost.exe 21->31         started        47 104.237.62.211, 443, 49701 WEBNXUS United States 23->47 49 api.ipify.org 23->49 33 conhost.exe 25->33         started        51 api.ipify.org 27->51 71 Tries to harvest and steal browser information (history, passwords, etc) 27->71 73 Installs a global keyboard hook 27->73 35 conhost.exe 29->35         started        file9 signatures10 process11
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c5f8a57e9e252306e9876a01fbc423420693bf04cf7c33fb0bbf972e34299f21/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-02-24 14:34:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
16 of 25 (64.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yx4kk7u6eurqn2mhnia7xrbdiidjhpyez56dh6ylx6ls4nbjt4qq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
42254d3829283c99a687de7f73c7c6483e194f3a4330d12e0d6da63f44cf9ab5
AgentTesla
465a71fa9458ee9162610eae78424a2a3f75561af0a2ce10ab3e6afde10aa74c
AgentTesla
6600f2c51ef233a254c85c0a3070eb9a81046692dd9918de53213c23e26a733f
AgentTesla
7ace08b1b886a524fc91f97cf3ac9e8367e5d53372193adf26c5179f0c3a39d1
AgentTesla
96c1f2e81dd6ac90324fe3eebbbd592670b5769adf64c8a73fb345d1749d4b02
AgentTesla
9a4dba9c3d3c74e021c2a07cb5d44aee1f36f697394d729f9735cb38792a86eb
AgentTesla
aff4528d78481eab74e742dd336b353115ca51f9180a539916d4bea14cbfece0
AgentTesla
+ 948 additional samples on MalwareBazaar
Result
Malware family:
purecrypter
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:purecrypter collection downloader keylogger loader persistence spyware stealer trojan
Link:
https://tria.ge/reports/230224-rwvxjshf86/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
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
Looks up external IP address via web service
Checks computer location settings
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
PureCrypter
Malware Config
C2 Extraction:
http://www.ugr.leszczynskie.net/galeria/Xcilfp.png
Unpacked files
SH256 hash:
c5f8a57e9e252306e9876a01fbc423420693bf04cf7c33fb0bbf972e34299f21
MD5 hash:
439c8eaf5105f874659e06ecca63e66b
SHA1 hash:
f264db763cacbcbc6620353097b1cd6367d14afb
Detections:
PureCrypter_Stage1
Create hunting rule
Link:
https://www.unpac.me/results/932dea09-0adf-47ca-bc74-99a622845927/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c5f8a57e9e25/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/c5f8a57e9e252306e9876a01fbc423420693bf04cf7c33fb0bbf972e34299f21

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.

Web download

AgentTesla

Executable exe c5f8a57e9e252306e9876a01fbc423420693bf04cf7c33fb0bbf972e34299f21

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2550026/
Cape
Cape
https://www.capesandbox.com/analysis/369498/

Comments


Avatar
zbet commented on 2023-02-24 14:33:03 UTC

url : hxxp://23.94.148.10/9019/vbc.exe