MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8feb443ce4a0831beefe88eb99af382a90390372f16a7e60d9c10f16b29d10f. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b8feb443ce4a0831beefe88eb99af382a90390372f16a7e60d9c10f16b29d10f
SHA3-384 hash: 6368209d62c5a5f8e68847b968bde652b6e6e18ed017ef047709ed0c56ef066c0111d5853bc487acaa43e747003d3bee
SHA1 hash: f814b6be6361338d024d473e368ed26ec434377f
MD5 hash: c5b6427332979bf01eb907e79d7503cb
humanhash: aspen-ink-lake-vermont
File name:FİYAT TEKLİFİ TALEP_PDF.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:438'272 bytes
First seen:2022-01-12 09:40:13 UTC
Last seen:2022-01-12 11:04:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'664 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:tlnSJ/Dx+ty7Lf4cb0U8awPEvrDGzR0KELdqP:t9SJ/D40ff4U0UjwPEzyzeq
TLSH T1E2941290B2B64737F92D4FB2107057114BF0E25C7012D7AC6FC8B8D9297BB225A536AB
Reporter lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
294
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
FİYAT TEKLİFİ TALEP_PDF.exe
Verdict:
Malicious activity
Analysis date:
2022-01-12 09:45:20 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/341f14a5-93e2-48fb-a7f5-f22354a3aefa

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/218649/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Launching the default Windows debugger (dwwin.exe)
Gathering data
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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/cbccdceb-221b-4ebd-9a86-7a9db3213296
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/919098
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 array initializations
Adds a directory exclusion to Windows Defender
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
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)
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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)
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: 551572 Sample: F#U0130YAT TEKL#U0130F#U013... Startdate: 12/01/2022 Architecture: WINDOWS Score: 100 48 mail.etites.com.tr 2->48 50 etites.com.tr 2->50 52 Multi AV Scanner detection for dropped file 2->52 54 Multi AV Scanner detection for submitted file 2->54 56 Yara detected AgentTesla 2->56 58 14 other signatures 2->58 8 F#U0130YAT TEKL#U0130F#U0130 TALEP_PDF.exe 7 2->8         started        12 RmxqUKg.exe 2->12         started        signatures3 process4 file5 36 C:\Users\user\AppData\Roaming\YBcPzOdjd.exe, PE32 8->36 dropped 38 C:\Users\...\YBcPzOdjd.exe:Zone.Identifier, ASCII 8->38 dropped 40 C:\Users\user\AppData\Local\Temp\tmp43D.tmp, XML 8->40 dropped 42 F#U0130YAT TEKL#U0...0 TALEP_PDF.exe.log, ASCII 8->42 dropped 60 Adds a directory exclusion to Windows Defender 8->60 62 Injects a PE file into a foreign processes 8->62 14 F#U0130YAT TEKL#U0130F#U0130 TALEP_PDF.exe 8->14         started        18 powershell.exe 24 8->18         started        20 powershell.exe 25 8->20         started        26 2 other processes 8->26 64 Multi AV Scanner detection for dropped file 12->64 66 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->66 68 Machine Learning detection for dropped file 12->68 70 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 12->70 22 schtasks.exe 12->22         started        24 RmxqUKg.exe 12->24         started        signatures6 process7 file8 44 C:\Users\user\AppData\Roaming\...\RmxqUKg.exe, PE32 14->44 dropped 46 C:\Users\user\...\RmxqUKg.exe:Zone.Identifier, ASCII 14->46 dropped 72 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->72 74 Tries to steal Mail credentials (via file / registry access) 14->74 76 Tries to harvest and steal ftp login credentials 14->76 78 2 other signatures 14->78 28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        32 conhost.exe 22->32         started        34 conhost.exe 26->34         started        signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b8feb443ce4a0831beefe88eb99af382a90390372f16a7e60d9c10f16b29d10f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-01-12 07:32:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
31 of 43 (72.09%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xd7liq6ojieddpxp5chltgxtqkuqhebxf4lkpzqntqipc2zj2ehq._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/220112-lnr8sscah3/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Unpacked files
SH256 hash:
af742d71aee96d63214220810f91d8f6bdefcebace9869a3c5ef9fe06ce0b9f0
MD5 hash:
bc05da0bd920a84e90abec2b23bb2814
SHA1 hash:
f1c870b3722e0ff5770c278faa0feba8ffe8e7a0
Link:
https://www.unpac.me/results/8cae2c55-eb2f-4715-92b5-7f77fb8254af/
SH256 hash:
6d6255e43f8c15ac35d75832b1b8ac911010720326488ca424eee3e0566817c6
MD5 hash:
6fbeffefb041ca0248c2873f8f170127
SHA1 hash:
dc99780c9888bd4855c7fb8c75e95921ecd6a96a
Link:
https://www.unpac.me/results/8cae2c55-eb2f-4715-92b5-7f77fb8254af/
SH256 hash:
604d25d40ac23880e64999fb7d3e5ee835cb2631fcb8eef6f7cde72b45b3f278
MD5 hash:
1d368c8ac8bf5d4d0d5169b264ed50c7
SHA1 hash:
96e9090392f6bb43f94b7ed48e0c5443140ca22a
Link:
https://www.unpac.me/results/8cae2c55-eb2f-4715-92b5-7f77fb8254af/
SH256 hash:
b8feb443ce4a0831beefe88eb99af382a90390372f16a7e60d9c10f16b29d10f
MD5 hash:
c5b6427332979bf01eb907e79d7503cb
SHA1 hash:
f814b6be6361338d024d473e368ed26ec434377f
Link:
https://www.unpac.me/results/8cae2c55-eb2f-4715-92b5-7f77fb8254af/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/b8feb443ce4a/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/b8feb443ce4a0831beefe88eb99af382a90390372f16a7e60d9c10f16b29d10f

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.

Malspam

AgentTesla

Executable exe b8feb443ce4a0831beefe88eb99af382a90390372f16a7e60d9c10f16b29d10f

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/218649/

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