MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f47cae95fdb8b43629d894b6d2b595b06e93e84f4f0bb2b0837703b6d2bde158. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f47cae95fdb8b43629d894b6d2b595b06e93e84f4f0bb2b0837703b6d2bde158
SHA3-384 hash: 35bf555325d8e9e6781bea8211108a196055104cc8a3b28b3023a969ee6a973dd662e34f5ee380467386d58e902dc508
SHA1 hash: d4844e6be457c8770a1e4b8f6465eee3cc3b6db0
MD5 hash: 067e07ad3ba92b705c9e17337d32dffa
humanhash: lactose-monkey-burger-nebraska
File name:RFQ Agencia de Aduana Pedro.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'048'064 bytes
First seen:2020-08-16 06:26:19 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:CS1QbvgWK5WpLTLUA2arEoxB6+90XDNe:fQbvxaWtgojLUD
Threatray 9'638 similar samples on MalwareBazaar
TLSH 4125E82D2701191BC43D5635D059BFC12730AE5A3E81CB9FF6C9778EAE3278B3A62059
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: kgix-othello.g1-srv2a.filteredmx.net
Sending IP: 91.197.228.154
From: Isabella Gonzalez <contacto@comerint.cl>
Subject: RFQ: Agencia de Aduana Pedro
Attachment: RFQ Agencia de Aduana Pedro.rar (contains "RFQ Agencia de Aduana Pedro.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/46420/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Sending a UDP request
Creating a file
Creating a process from a recently created file
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/432187
Signature
Allocates memory in foreign processes
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect virtualization through RDTSC time measurements
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)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 267562 Sample: RFQ Agencia de Aduana Pedro.exe Startdate: 16/08/2020 Architecture: WINDOWS Score: 100 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Found malware configuration 2->41 43 Yara detected AgentTesla 2->43 45 Tries to detect virtualization through RDTSC time measurements 2->45 6 RFQ Agencia de Aduana Pedro.exe 6 2->6         started        10 wimdows.exe 4 2->10         started        12 wimdows.exe 3 2->12         started        process3 file4 23 C:\Users\user\AppData\...\InstallUtil.exe, PE32 6->23 dropped 25 C:\Users\user\AppData\...\AgileDotNetRT.dll, PE32 6->25 dropped 47 Writes to foreign memory regions 6->47 49 Allocates memory in foreign processes 6->49 51 Injects a PE file into a foreign processes 6->51 14 InstallUtil.exe 2 4 6->14         started        19 conhost.exe 10->19         started        21 conhost.exe 12->21         started        signatures5 process6 dnsIp7 29 mail.nsmelectronics.com 103.14.97.85, 49740, 587 TRUNKOZ-INTrunkozTechnologiesPvtLtdIN India 14->29 27 C:\Users\user\AppData\Roaming\...\wimdows.exe, PE32 14->27 dropped 31 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->31 33 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->33 35 Tries to steal Mail credentials (via file access) 14->35 37 5 other signatures 14->37 file8 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f47cae95fdb8b43629d894b6d2b595b06e93e84f4f0bb2b0837703b6d2bde158/
Threat name:
ByteCode-MSIL.Infostealer.Agensla
Create hunting rule
Status:
Malicious
First seen:
2020-08-15 21:43:23 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6r6k5fp5xc2dmkoyss3nfnmvwbxjh2cpj4f3fmedo4b3nuv54fma._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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8d4a01b04439bd4ea04fca05aa078367da91aefea6dbe7b317c3fa16ca9d3354
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fe13b5826a85afc204c9be0a3c8da5fb28844c5d7829413d23dd7e4229400bf4
AgentTesla
+ 9'628 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer family:agenttesla
Link:
https://tria.ge/reports/200816-fkk9e47xaa/
Behaviour
AgentTesla Payload
Agenttesla family
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f47cae95fdb8b43629d894b6d2b595b06e93e84f4f0bb2b0837703b6d2bde158

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 982692fd04073c5f14fd4a037c9251dc2864656f43719ed64bd1e2b41a107fce

AgentTesla

Executable exe f47cae95fdb8b43629d894b6d2b595b06e93e84f4f0bb2b0837703b6d2bde158

(this sample)

  
Dropped by
MD5 fd775fb6d6e55bc53fade00cc097993e
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/46420/
  
Dropped by
SHA256 982692fd04073c5f14fd4a037c9251dc2864656f43719ed64bd1e2b41a107fce

Comments