MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1fa58485468d5b1461c56eb7412642d91401cd54252cc8545614dd88fbabf2e9. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1fa58485468d5b1461c56eb7412642d91401cd54252cc8545614dd88fbabf2e9
SHA3-384 hash: 36591ffea278b061b01dfc141d9552f9e45283ab2c97155a4fdfa5d230a3ba92cf9fb2c8e920e14c0de3a27b9166ffe1
SHA1 hash: da0513550c158ec7f7123e9e05511ecdd44c30b3
MD5 hash: 3a6c70310fdb23071705fcba297c8327
humanhash: enemy-maine-bluebird-helium
File name:RFQ 11054.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:803'840 bytes
First seen:2021-05-07 12:08:50 UTC
Last seen:2021-05-07 13:01:02 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:8DYPMdUmt/AsGQE4Gve/9TgbibjcPQ+KK29PSB7LG0F5qRVRy6N:8IyUA//wveimvcP6D965K0F5qRyE
Threatray 24 similar samples on MalwareBazaar
TLSH 3205E0262385EA60E82A4779D05053F013F2BC11F722EE1BAED57DED7876ED182952C3
Reporter cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
109
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/152668/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.624-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/719759
Signature
Adds a directory exclusion to Windows Defender
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
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
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Suspicious Double Extension
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 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: 408810 Sample: RFQ 11054.pdf.exe Startdate: 09/05/2021 Architecture: WINDOWS Score: 100 67 Found malware configuration 2->67 69 Multi AV Scanner detection for dropped file 2->69 71 Multi AV Scanner detection for submitted file 2->71 73 12 other signatures 2->73 7 RFQ 11054.pdf.exe 7 2->7         started        11 pGKuRU.exe 2->11         started        13 pGKuRU.exe 2->13         started        process3 file4 47 C:\Users\user\AppData\...\SWHVXqrahuAgPq.exe, PE32 7->47 dropped 49 C:\Users\user\AppData\Local\...\tmpD90F.tmp, XML 7->49 dropped 51 C:\Users\user\...\RFQ 11054.pdf.exe.log, ASCII 7->51 dropped 75 Adds a directory exclusion to Windows Defender 7->75 15 RFQ 11054.pdf.exe 7->15         started        19 powershell.exe 20 7->19         started        21 powershell.exe 24 7->21         started        31 2 other processes 7->31 77 Multi AV Scanner detection for dropped file 11->77 79 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 11->79 81 Injects a PE file into a foreign processes 11->81 23 powershell.exe 11->23         started        25 schtasks.exe 11->25         started        27 powershell.exe 11->27         started        29 pGKuRU.exe 11->29         started        signatures5 process6 file7 53 C:\Users\user\AppData\Roaming\...\pGKuRU.exe, PE32 15->53 dropped 55 C:\Users\user\...\pGKuRU.exe:Zone.Identifier, ASCII 15->55 dropped 57 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->57 59 Tries to steal Mail credentials (via file access) 15->59 61 Tries to harvest and steal ftp login credentials 15->61 65 2 other signatures 15->65 33 conhost.exe 19->33         started        35 conhost.exe 21->35         started        63 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 23->63 37 conhost.exe 23->37         started        39 conhost.exe 25->39         started        41 conhost.exe 27->41         started        43 conhost.exe 31->43         started        45 conhost.exe 31->45         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1fa58485468d5b1461c56eb7412642d91401cd54252cc8545614dd88fbabf2e9/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-05-07 01:22:49 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
22 of 46 (47.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=d6syjbkgrvnriyofn23ucjsc3ekadtkueuwmqvcwctoyr65l6luq._file
Verdict:
unknown
Similar samples:
08b64b4bd7191df64c3b46ef1bb57044cabbafcf80588395742c4532dd63fe6d
AgentTesla
1868df90ac6a9c1a2b6cc97365ba68afb3f849d3293c9d4f7f01651a694af863
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30718874b90d12365b221766d1fad7e2dc3301d3898e071a082ed9fb9bf5ec22
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3238cd98f0d5cb87510c0a57415f7d41087b738adf44ee4cdd04bd7b586b4db2
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531c58486429d3d89143d6478d0990ed8a04deb5382c6d585f08dbbe49003938
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64d8cfadb5aa988231125b039a59d50c08c63e815087b37f5df86e61c1714b74
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6e8ac50a9010c4a45d57ee0095c2cb1989ce6d4a453746920e1dcb3ec43e3c85
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8ae3921d1c658a95aa61e85467ef617393cb58b77d22930196e0366e79b6ef64
AgentTesla
9fe5ea4e91dd5a5343e7f965f898a77451ab3a2e19ecab18b1b2676f81180ff0
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ea9b2854539d2bb0464d79b5a9ece95585ad1a7321e3241cf2fd1148e268d0dc
AgentTesla
+ 14 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210507-9pxsvrg116/
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
Maps connected drives based on registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
AgentTesla Payload
Looks for VirtualBox Guest Additions in registry
AgentTesla
Unpacked files
SH256 hash:
bdf79e57b5574f9bafb56f6d0592f5ee429df7eb0ad536fbdb4f2956aae36f87
MD5 hash:
826b29e2a141b055a5491c9d7dc6eea7
SHA1 hash:
af4201362b8603bf7e4b6e2ead1cfb610dd7c0a9
Link:
https://www.unpac.me/results/1e585c6e-5316-4516-9284-73e61d1dae5d/
SH256 hash:
1fa58485468d5b1461c56eb7412642d91401cd54252cc8545614dd88fbabf2e9
MD5 hash:
3a6c70310fdb23071705fcba297c8327
SHA1 hash:
da0513550c158ec7f7123e9e05511ecdd44c30b3
Link:
https://www.unpac.me/results/1e585c6e-5316-4516-9284-73e61d1dae5d/
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/1fa58485468d5b1461c56eb7412642d91401cd54252cc8545614dd88fbabf2e9

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

zip 48f60cae51e51d9eb76e65c8afacb3248ab8d6227d15028ebc9ab00a58b2d4fa

AgentTesla

Executable exe 1fa58485468d5b1461c56eb7412642d91401cd54252cc8545614dd88fbabf2e9

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 48f60cae51e51d9eb76e65c8afacb3248ab8d6227d15028ebc9ab00a58b2d4fa
Cape
Cape
https://www.capesandbox.com/analysis/152668/

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