MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 664e98a05e0cdd62d0f97525f2255f1c19b5b8a1d8091a362ef5fbc007c2715c. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 664e98a05e0cdd62d0f97525f2255f1c19b5b8a1d8091a362ef5fbc007c2715c
SHA3-384 hash: 0157b4d5dd91ab002999bdf45d00b3303fff07efc3b7aca7bf6c979d33a625d8384e872dac3601388b74d1b3d2c14af7
SHA1 hash: e6cbc737d151b54129bf082b4def740cffe6d137
MD5 hash: ff3f88db42b51b8928be3f1f08d7c1ca
humanhash: yellow-victor-fix-arizona
File name:Halkbank_Ekstre_20230821_080757_783952.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'085'952 bytes
First seen:2023-08-22 07:49:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:FSqlCe9qhJg3duRJ8P+B6nsOkzwTsnW+55A:tlCe9qhJ0d+CsO9bU5A
Threatray 5'564 similar samples on MalwareBazaar
TLSH T11B350222B1E5EF05CABC83F160916F4453A711CE2135F2784D97B4E6A3E6BC60A526F3
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)
Reporter abuse_ch
Tags:AgentTesla exe geo Halkbank TUR


Avatar
abuse_ch
AgentTesla SMTP exfil server:
mail.asainsaatmakina.com.tr:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
283
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
Halkbank_Ekstre_20230821_080757_783952.pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-08-22 08:07:02 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/5d7a2788-6081-4c26-9a37-270edfc63a31

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/444095/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Restart of the analyzed sample
Adding an exclusion to Microsoft Defender
Gathering data
Verdict:
Malicious
Labled as:
Trojan.MSIL.Agent
Link:
https://www.hybrid-analysis.com/sample/664e98a05e0cdd62d0f97525f2255f1c19b5b8a1d8091a362ef5fbc007c2715c
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/c381fe05-451f-48fd-9e12-c997d6d60451
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1294999
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Adds a directory exclusion to Windows Defender
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
Injects a PE file into a foreign processes
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 dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Scheduled temp file as task from temp location
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)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1294999 Sample: Halkbank_Ekstre_20230821_08... Startdate: 22/08/2023 Architecture: WINDOWS Score: 100 51 mail.asainsaatmakina.com.tr 2->51 53 api4.ipify.org 2->53 55 api.ipify.org 2->55 61 Snort IDS alert for network traffic 2->61 63 Found malware configuration 2->63 65 Sigma detected: Scheduled temp file as task from temp location 2->65 67 9 other signatures 2->67 8 Halkbank_Ekstre_20230821_080757_783952.pdf.exe 7 2->8         started        12 plQRn125.exe 5 2->12         started        14 NpHwnpAs.exe 5 2->14         started        16 plQRn125.exe 2->16         started        signatures3 process4 file5 47 C:\Users\user\AppData\Roaming47pHwnpAs.exe, PE32 8->47 dropped 49 C:\Users\user\AppData\Local\...\tmpCA3F.tmp, XML 8->49 dropped 77 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->77 79 Uses schtasks.exe or at.exe to add and modify task schedules 8->79 81 Adds a directory exclusion to Windows Defender 8->81 18 Halkbank_Ekstre_20230821_080757_783952.pdf.exe 17 5 8->18         started        23 powershell.exe 23 8->23         started        25 schtasks.exe 1 8->25         started        83 Multi AV Scanner detection for dropped file 12->83 85 Machine Learning detection for dropped file 12->85 87 Injects a PE file into a foreign processes 12->87 27 plQRn125.exe 12->27         started        29 schtasks.exe 12->29         started        31 NpHwnpAs.exe 14->31         started        33 schtasks.exe 14->33         started        signatures6 process7 dnsIp8 57 api4.ipify.org 104.237.62.211, 443, 49759, 49764 WEBNXUS United States 18->57 59 mail.asainsaatmakina.com.tr 213.238.169.81, 49760, 49762, 49766 NETDIREKT-ASTR Turkey 18->59 43 C:\Users\user\AppData\...\plQRn125.exe, PE32 18->43 dropped 45 C:\Users\...\plQRn125.exe:Zone.Identifier, ASCII 18->45 dropped 69 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->69 71 Tries to steal Mail credentials (via file / registry access) 18->71 73 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->73 35 conhost.exe 23->35         started        37 conhost.exe 25->37         started        75 Tries to harvest and steal browser information (history, passwords, etc) 27->75 39 conhost.exe 29->39         started        41 conhost.exe 33->41         started        file9 signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/664e98a05e0cdd62d0f97525f2255f1c19b5b8a1d8091a362ef5fbc007c2715c/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-08-21 12:16:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
21
AV detection:
24 of 36 (66.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mzhjric6btowfuhzous7ejk7dqm3lofb3aerunro6x54ab6cofoa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
206fc7652acb64b309bb3e8d6dc46dfda7cb7f42c8730e4f8b70afd10a60a1b0
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217a04102c6021e98815a35feab526e99a259f01c9baee3e143288dbc160b920
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27b0811f1a22296d17285add8557ce3fbfd823f9de7e20cbccc55908d514eeea
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511e02250e52bd71a520596483f59564a14c75feaed6ceaddd36e35af30bf6be
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74ff17aae3f0515ff88a92b8ec843696b7b5c2d5048994ec9f627a5b5391d761
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78589730c5ebfb1b95ff5a9351a22f312fcf5087523f4ef38b93be6fbfa64655
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84e5beb64edd5d86e524efa857995b09d5f5f2d7e5effc974e4dfb4e4d5364ed
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974ca7ad435352579a6080a0437db8fb96a3cc0627799820cbe3aac2fd0a6a0f
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d827653375fc186bab05813fb21a26330cea1c4bf19a01c6f551a8098b8f3c0d
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f4d50f538efd2ade1a4aa8ad827b6885af60dfcee80abe5efce6589318d7b45f
AgentTesla
+ 5'554 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
persistence spyware stealer
Link:
https://tria.ge/reports/230822-jn93hacc7s/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
a7d8310d7c0f84675e04bd7c1acfa4aff42a13240faaf323c71fa651be2a1d3c
MD5 hash:
16e42bb66f06e9471e198069e335c8cd
SHA1 hash:
e70a03c133b263b1abe1fb68d9fd963ba6f50218
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/aaac6446-b608-4e0e-a3d4-9407d53faf2c/
Parent samples :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 hash:
2ac2f55e15fd8da559f99925ceee9166ca978e94cbc53a5cb29bf02d0a76ac7f
MD5 hash:
1081db0b25581c7958e6fbff4d9aa64a
SHA1 hash:
bcb0e0fe844884a5b0d05cd3b0cc5fd7a5ff53b9
Link:
https://www.unpac.me/results/aaac6446-b608-4e0e-a3d4-9407d53faf2c/
SH256 hash:
080c5c98c03a635e0e5277442990cadd36b401d90edadc74fe9e761998966485
MD5 hash:
70e13a3537bf8022542b5d0457d02d82
SHA1 hash:
b24da55f1863a1f2f623a66ff915e2d9260c1309
Link:
https://www.unpac.me/results/aaac6446-b608-4e0e-a3d4-9407d53faf2c/
SH256 hash:
99444540f23e94bf0bfa8042095fdb95bbb1bf6fca9e77708b791668bdf48ca2
MD5 hash:
3df3c5b460ff04b434ef22c7d17cf4f4
SHA1 hash:
0338251d5bf821dde72ab468e811a1bdb6965626
Link:
https://www.unpac.me/results/aaac6446-b608-4e0e-a3d4-9407d53faf2c/
SH256 hash:
664e98a05e0cdd62d0f97525f2255f1c19b5b8a1d8091a362ef5fbc007c2715c
MD5 hash:
ff3f88db42b51b8928be3f1f08d7c1ca
SHA1 hash:
e6cbc737d151b54129bf082b4def740cffe6d137
Link:
https://www.unpac.me/results/aaac6446-b608-4e0e-a3d4-9407d53faf2c/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/664e98a05e0c/report/overview.html
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/664e98a05e0cdd62d0f97525f2255f1c19b5b8a1d8091a362ef5fbc007c2715c

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: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

AgentTesla

Executable exe 664e98a05e0cdd62d0f97525f2255f1c19b5b8a1d8091a362ef5fbc007c2715c

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/444095/

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