MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 75e41eb7b9f88a279e41be0944ebe10df52c768f5b4992597d693fe58d96f4f1. 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: 7


Intelligence 7 IOCs YARA 3 File information Comments
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SHA256 hash: 75e41eb7b9f88a279e41be0944ebe10df52c768f5b4992597d693fe58d96f4f1
SHA3-384 hash: d2578ae565dd7cfcd28d99243c18be7f0f967a27778cbeb516d0362276ad3bd0783246989874bbcb0e801b935a899c86
SHA1 hash: 0c428ad1712ba41675170773e1216f9b681dee47
MD5 hash: e5181badd9a9331327095df2f2fb4255
humanhash: steak-comet-wolfram-spaghetti
File name:P.I. Ref P.I051216.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:519'168 bytes
First seen:2020-08-05 15:53:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:X8CQ3q6LHQUtlx8wZW5dpMz8Ja2PNiLPocVtFZS8YR0HgrpiA:2q6LQUJq5d5/1iLPNVtfS8YRRQA
Threatray 114 similar samples on MalwareBazaar
TLSH D2B4F144379EAB62DCFC4BFC514D348643B57E2AEE16E3496D89B1F61072B40C2A0B67
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

From: "Alice Tan Q." <abc@centirn.net>
Subject: RE: P.I. Ref P.I051216-Revised confirm Order
Attachment: P.I. Ref P.I051216.rar (contains "P.I. Ref P.I051216.exe")

AgentTesla SMTP exfil server:
smtp.yandex.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
85
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Detection(s):
SecuriteInfo.com.Generic.mg.e5181badd9a93313.12335.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Launching the process to change network settings
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/411592
Signature
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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: Capture Wi-Fi password
Sigma detected: Scheduled temp file as task from temp location
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 harvest and steal WLAN passwords
Tries to steal Mail credentials (via file access)
Uses netsh to modify the Windows network and firewall settings
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 258095 Sample: P.I. Ref P.I051216.exe Startdate: 05/08/2020 Architecture: WINDOWS Score: 100 38 Found malware configuration 2->38 40 Sigma detected: Capture Wi-Fi password 2->40 42 Sigma detected: Scheduled temp file as task from temp location 2->42 44 10 other signatures 2->44 8 P.I. Ref P.I051216.exe 7 2->8         started        process3 file4 26 C:\Users\user\AppData\...\ZDPDyyzaJA.exe, PE32 8->26 dropped 28 C:\Users\...\ZDPDyyzaJA.exe:Zone.Identifier, ASCII 8->28 dropped 30 C:\Users\user\AppData\Local\Temp\tmpC54.tmp, XML 8->30 dropped 32 C:\Users\user\...\P.I. Ref P.I051216.exe.log, ASCII 8->32 dropped 46 Injects a PE file into a foreign processes 8->46 12 P.I. Ref P.I051216.exe 4 8->12         started        16 schtasks.exe 1 8->16         started        18 P.I. Ref P.I051216.exe 8->18         started        signatures5 process6 dnsIp7 34 smtp.yandex.ru 77.88.21.158, 49735, 587 YANDEXRU Russian Federation 12->34 36 smtp.yandex.com 12->36 48 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->48 50 Tries to steal Mail credentials (via file access) 12->50 52 Tries to harvest and steal ftp login credentials 12->52 54 2 other signatures 12->54 20 netsh.exe 3 12->20         started        22 conhost.exe 16->22         started        signatures8 process9 process10 24 conhost.exe 20->24         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/75e41eb7b9f88a279e41be0944ebe10df52c768f5b4992597d693fe58d96f4f1/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2020-08-05 15:55:06 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=oxsb5n5z7cfcphsbxyeuj27bbx2sy5uplnezewl5ne76ldmw6tyq._file
Verdict:
unknown
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a1f25cc2116efd8dab8b7865597f22571937f38c8fa06279b45c3ddfbf6df5b7
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a7fe126b01ab7f612af3aae23f1f45bf607f10d4956d7d0b75fe6cd6ac4c4b93
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bf0b665a0ce42c70bc73bd8634339da01d819e8e973ed775b53b612dd9ead1b8
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c1a8d05e6b798ccd18334ab7461cc276bdc3603f35d3186b90bfcb9597ada240
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c80e78dd2df6f05af56219b53cee120b49ace758bc47bbca1b45d3e3ec528ae3
AgentTesla
+ 104 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware persistence trojan family:agenttesla
Link:
https://tria.ge/reports/200805-fsmfd8r8va/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious use of SetThreadContext
Modifies service
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/75e41eb7b9f88a279e41be0944ebe10df52c768f5b4992597d693fe58d96f4f1

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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

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

Malspam

AgentTesla

rar 84f7f5cd186eafb57fdec24cd1887313574b5ebf9b21907b19f89b11d36645ca

AgentTesla

Executable exe 75e41eb7b9f88a279e41be0944ebe10df52c768f5b4992597d693fe58d96f4f1

(this sample)

  
Dropped by
MD5 8d0261d02ec6dce190810902e3ad8120
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/39791/
  
Dropped by
SHA256 84f7f5cd186eafb57fdec24cd1887313574b5ebf9b21907b19f89b11d36645ca

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