MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 284fde44f4c88b3f8794bc3f441b89d50920468974a95744ee693e8676bd4280. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 284fde44f4c88b3f8794bc3f441b89d50920468974a95744ee693e8676bd4280
SHA3-384 hash: 926145d3d43ed2e02769071cecc026342c082f39e1d7e76ce8d4b4565056abc9bce35f777d9734553982108c6ce43d67
SHA1 hash: 22bb79429b73ada0a4353d85939492df36e82a8b
MD5 hash: 3a3167514db9ba4fccb0a56a6f147e31
humanhash: lake-moon-cola-early
File name:Invoice.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'101'824 bytes
First seen:2022-03-25 12:34:17 UTC
Last seen:2022-03-25 14:51:57 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 24576:db+UM/D4hSKrrdK5hQqX2LLbRPx2jS0T6JeVL8oMUTo5cw:dboKrUniLLbZx25XMUWj
Threatray 12'915 similar samples on MalwareBazaar
TLSH T16E3512122DC0DE12C5B50E310C78A448DB35E3666A19D765B8EC723B9F326E05BB77CA
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
223
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/257686/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1271.12354.10110.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
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
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/623db7009253b276b76c5077/reports/a41b63a5-579a-4e63-9a54-4013771f7310/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f895b1c6-c25e-4426-8be4-40d6fd6182d8
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/964556
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Found malware configuration
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
Malicious sample detected (through community Yara rule)
Modifies the hosts file
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: Suspicious Add Scheduled Task From User AppData Temp
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 597037 Sample: Invoice.exe Startdate: 25/03/2022 Architecture: WINDOWS Score: 100 40 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->40 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 12 other signatures 2->46 7 Invoice.exe 7 2->7         started        process3 file4 26 C:\Users\user\AppData\Roaming\tbfCNf.exe, PE32 7->26 dropped 28 C:\Users\user\...\tbfCNf.exe:Zone.Identifier, ASCII 7->28 dropped 30 C:\Users\user\AppData\Local\...\tmp9159.tmp, XML 7->30 dropped 32 C:\Users\user\AppData\...\Invoice.exe.log, ASCII 7->32 dropped 48 Uses schtasks.exe or at.exe to add and modify task schedules 7->48 50 Writes to foreign memory regions 7->50 52 Allocates memory in foreign processes 7->52 54 2 other signatures 7->54 11 RegSvcs.exe 2 7->11         started        16 powershell.exe 1 7->16         started        18 schtasks.exe 1 7->18         started        20 WMIADAP.exe 2 7->20         started        signatures5 process6 dnsIp7 36 atifnazar.com 212.8.242.106, 49778, 587 WORLDSTREAMNL Netherlands 11->36 38 mail.atifnazar.com 11->38 34 C:\Windows\System32\drivers\etc\hosts, ASCII 11->34 dropped 56 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->56 58 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->58 60 Tries to steal Mail credentials (via file / registry access) 11->60 62 4 other signatures 11->62 22 conhost.exe 16->22         started        24 conhost.exe 18->24         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/284fde44f4c88b3f8794bc3f441b89d50920468974a95744ee693e8676bd4280/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-03-25 12:35:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
14 of 26 (53.85%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fbh54rhuzcft7b4uxq7uig4j2uesarujosuvorhone7im5v5ikaa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0e16551efbf1aacaf4bbc05653978d86979048f338f9fab4a123dd3831dcef4e
AgentTesla
66222812722bec06eaecb3735456800f715ebb8148a4c994c391de97c83e0868
AgentTesla
6f3b47af872e2699147e7bb3b5ce9cbd70cb11703c7a5b0f2be10dd0294f4285
AgentTesla
7cd1bb647fff3c340e2eae0532318bde99947b6bc91e3fabe286bd3fb0a1658e
AgentTesla
8dfb5ef547fe03418d49d47bd09e6b18cc8413542308225b1d83606a5178c0ab
AgentTesla
98aeacaea9d4c101bcc2ae23384f20e93620b3df41e4eca1676aa2bba92c4cbf
AgentTesla
f133bd95fedd4f9df5a28d3844771a82ebd6ff1a9959f98c1a9f2011b704f4fa
AgentTesla
+ 12'905 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer suricata trojan
Link:
https://tria.ge/reports/220325-psdsracfdl/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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
Drops file in Drivers directory
AgentTesla
suricata: ET MALWARE AgentTesla Exfil Via SMTP
Unpacked files
SH256 hash:
dc5c057b0ee1eb079cf189762aac69f0d86338ea18795dc4fbf7ed9b5a45c2eb
MD5 hash:
4103ed94f4747b30e166cf3c25416f47
SHA1 hash:
d553a67056e94f60d621ca42dcecd6d93f9ef1ad
Link:
https://www.unpac.me/results/d34c9493-d6dd-4a6d-a04b-9c2c125201af/
SH256 hash:
51620455d2b5fb186d15da040a436fffd52960a28661156d97f16138338585f1
MD5 hash:
0fc264f8c18eed60126b39e0afd5f957
SHA1 hash:
cf14584430f18a94b201d72ab1ab49c344a84d2f
Link:
https://www.unpac.me/results/d34c9493-d6dd-4a6d-a04b-9c2c125201af/
SH256 hash:
4ffb4a4701213cbfbedc9b840742022f37ede04a8851e43cd4df000f4b95b8cc
MD5 hash:
79c672efd6cdc93a9a6f67d7fbb9a751
SHA1 hash:
ce6bbc7d2b8221c87081aef0ba0273e964d985a0
Link:
https://www.unpac.me/results/d34c9493-d6dd-4a6d-a04b-9c2c125201af/
SH256 hash:
88c93b257b7797568e10a0a719855dac43c31c7b24080f541f46421ad44b93b1
MD5 hash:
7415c61f7e4fd323f4973264b8290329
SHA1 hash:
4e3b168e3369eb0b85a32adec580921a42f94200
Link:
https://www.unpac.me/results/d34c9493-d6dd-4a6d-a04b-9c2c125201af/
SH256 hash:
284fde44f4c88b3f8794bc3f441b89d50920468974a95744ee693e8676bd4280
MD5 hash:
3a3167514db9ba4fccb0a56a6f147e31
SHA1 hash:
22bb79429b73ada0a4353d85939492df36e82a8b
Link:
https://www.unpac.me/results/d34c9493-d6dd-4a6d-a04b-9c2c125201af/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/284fde44f4c8/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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 284fde44f4c88b3f8794bc3f441b89d50920468974a95744ee693e8676bd4280

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/257686/

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