MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4d4d5739a6da66c87152d4bbbeedd36889f966a3f8279193766ff40be2628027. 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 6 File information Comments
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SHA256 hash: 4d4d5739a6da66c87152d4bbbeedd36889f966a3f8279193766ff40be2628027
SHA3-384 hash: 518ccb54fa69ceae72137ccdc5c59c95766077594764e2651612272480f2104c7cd4318a4b83fe2ce2794ce43f874dc6
SHA1 hash: 8a28eb2f7b5e5e94f2621c134072d3f88f21a28a
MD5 hash: b5b538aa1648c32d03b5e445ca78fc89
humanhash: romeo-one-item-september
File name:Inquiry - RFQ HMG U66 sw5558.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:960'000 bytes
First seen:2022-01-21 08:08:21 UTC
Last seen:2022-01-21 09:53:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:mgSGPsxlsftiiiE9WfXGd333YTW0qRdkrWq6w0fi4jUCmrO2QXuARRwQlnq7070P:npUxrfXk333YVqY78N7x
TLSH T1B515CF687B40B1DFC90BCE758A686C60E720B4AB570BD65790571AEDDA0C7DBCF102B2
Reporter lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
212
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/221377/
Detection(s):
SecuriteInfo.com.Trojan.MSIL.Taskun.4c.24722.8724.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS 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 from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Creating a file
Sending an HTTP GET request
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61ea6a26f81da814af954872/reports/224470d3-bf5a-479c-8cf4-7c51d7aa11ad/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.
Malware family:
Agent Tesla
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/aa7023d5-97bc-4a01-aa92-02501f433ae0
Result
Threat name:
AgentTesla
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/925048
Signature
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Installs a global keyboard hook
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: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
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 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 signatures2 2 Behavior Graph ID: 557526 Sample: Inquiry - RFQ HMG U66 sw555... Startdate: 21/01/2022 Architecture: WINDOWS Score: 100 35 Found malware configuration 2->35 37 Antivirus detection for dropped file 2->37 39 Antivirus / Scanner detection for submitted sample 2->39 41 17 other signatures 2->41 7 Inquiry - RFQ HMG U66 sw5558.pdf.exe 7 2->7         started        process3 file4 23 C:\Users\user\AppData\...23OaetFDchqz.exe, PE32 7->23 dropped 25 C:\Users\...25OaetFDchqz.exe:Zone.Identifier, ASCII 7->25 dropped 27 C:\Users\user\AppData\Local\...\tmp5C57.tmp, XML 7->27 dropped 29 Inquiry - RFQ HMG U66 sw5558.pdf.exe.log, ASCII 7->29 dropped 43 Adds a directory exclusion to Windows Defender 7->43 11 RegSvcs.exe 6 7->11         started        15 powershell.exe 24 7->15         started        17 schtasks.exe 1 7->17         started        signatures5 process6 dnsIp7 31 smtp.yandex.ru 77.88.21.158, 49831, 49833, 587 YANDEXRU Russian Federation 11->31 33 smtp.yandex.com 11->33 45 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->45 47 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->47 49 Tries to steal Mail credentials (via file / registry access) 11->49 51 4 other signatures 11->51 19 conhost.exe 15->19         started        21 conhost.exe 17->21         started        signatures8 process9
Detection:
agenttesla
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Link:
https://mwdb.cert.pl/sample/4d4d5739a6da66c87152d4bbbeedd36889f966a3f8279193766ff40be2628027/
Threat name:
ByteCode-MSIL.Packed.Confuser
Create hunting rule
Status:
Malicious
First seen:
2022-01-21 08:09:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
33
AV detection:
23 of 28 (82.14%)
Threat level:
  1/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jvgvoong3jtmq4ks2s5353otnce7szvd7atzde3wn72axytcqatq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/220121-j1593secem/
Behaviour
Creates scheduled task(s)
Modifies data under HKEY_USERS
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
Checks computer location settings
Sets service image path in registry
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
ad453894ae3210df02ce28493dc16647c00d20dcc652712053f79e8fe4de7fb1
MD5 hash:
d842f907e5d0d889d88f28014bff0bb0
SHA1 hash:
ecdff513cd7b1e741169b5c55099c86401a98f36
Link:
https://www.unpac.me/results/b6e41f47-d919-4844-8795-5dde8f9ed8c4/
SH256 hash:
a02c41b0bf3bef02b24a628b302e3843c5207a45e6e6b2eaa7ef79078506fe33
MD5 hash:
f00db7437bae12cf5a53dfe1eab9bc5d
SHA1 hash:
50d9f0453fefb68389eabd108bc3e8a602cda576
Link:
https://www.unpac.me/results/b6e41f47-d919-4844-8795-5dde8f9ed8c4/
SH256 hash:
8b25188a1581753b0faa89a7e371d2cc852fd95635b8503b6b20a4263af486e8
MD5 hash:
384cab014157440d3c462a97689e40ff
SHA1 hash:
4b91e7dfd574e04db14d2e3223df9327a5b95ba2
Link:
https://www.unpac.me/results/b6e41f47-d919-4844-8795-5dde8f9ed8c4/
SH256 hash:
4d4d5739a6da66c87152d4bbbeedd36889f966a3f8279193766ff40be2628027
MD5 hash:
b5b538aa1648c32d03b5e445ca78fc89
SHA1 hash:
8a28eb2f7b5e5e94f2621c134072d3f88f21a28a
Link:
https://www.unpac.me/results/b6e41f47-d919-4844-8795-5dde8f9ed8c4/
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/4d4d5739a6da66c87152d4bbbeedd36889f966a3f8279193766ff40be2628027

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:ach_AgentTesla_20200929
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
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
Rule name:win_agent_tesla_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

Executable exe 4d4d5739a6da66c87152d4bbbeedd36889f966a3f8279193766ff40be2628027

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/221377/

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