MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 76eb0a1ac3b7d29521384b9b1a600a6373c8c4ee93cdd2dac857f6add06c9800. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 76eb0a1ac3b7d29521384b9b1a600a6373c8c4ee93cdd2dac857f6add06c9800
SHA3-384 hash: d53515bf8c2c0a25458fffc468670fcb9ff1026ac7c4fb7db10f557b60a362266912b9023ed978ad1760b30eb2b763b8
SHA1 hash: 0d41959e21a72d358d041f52b5619b8cceea0bee
MD5 hash: 1d4d767e2078ff1631ad5e10507535e8
humanhash: sad-ten-sink-timing
File name:wire transfer.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:460'288 bytes
First seen:2020-08-04 16:46:52 UTC
Last seen:2020-08-04 17:57:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 6144:R/BCcWYvTv03v6SWNDhpthrYkNn4e9057H8G6knJ//VvB5GmEmyVnyPRfo+pGy4r:R/f7syN15r/n1UcGZ//5mVypo+Ap/
Threatray 10'618 similar samples on MalwareBazaar
TLSH 9CA4126C16E99E27F6A9057F9C329007DE63C12F2E20C69F4BB1108C507E65C7E52FA6
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: bex.net
Sending IP: 37.49.230.200
From: David Cooper <chihuahualvr@bex.net>
Subject: SWIFT payment
Attachment: wire transfer.Z (contains "wire transfer.exe")

AgentTesla SMTP exfil server:
mail.threewaystoharems.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
90
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/38866/
Detection(s):
SecuriteInfo.com.Generic.mg.1d4d767e2078ff16.29626.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/409819
Signature
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Moves itself to temp directory
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)
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)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 257160 Sample: wire transfer.exe Startdate: 04/08/2020 Architecture: WINDOWS Score: 100 51 Found malware configuration 2->51 53 Yara detected AgentTesla 2->53 55 Yara detected AntiVM_3 2->55 57 4 other signatures 2->57 6 wire transfer.exe 3 2->6         started        10 YYtJku.exe 2 2->10         started        12 YYtJku.exe 3 2->12         started        process3 file4 25 C:\Users\user\...\wire transfer.exe.log, ASCII 6->25 dropped 59 Injects a PE file into a foreign processes 6->59 14 wire transfer.exe 2 5 6->14         started        19 YYtJku.exe 2 10->19         started        61 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->61 63 Machine Learning detection for dropped file 12->63 65 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 12->65 21 YYtJku.exe 2 12->21         started        23 YYtJku.exe 12->23         started        signatures5 process6 dnsIp7 31 threewaystoharems.com 192.254.236.251, 49698, 49699, 587 UNIFIEDLAYER-AS-1US United States 14->31 33 mail.threewaystoharems.com 14->33 27 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 14->27 dropped 29 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 14->29 dropped 39 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->39 41 Moves itself to temp directory 14->41 43 Tries to steal Mail credentials (via file access) 14->43 35 mail.threewaystoharems.com 19->35 37 192.168.2.1 unknown unknown 19->37 45 Tries to harvest and steal ftp login credentials 19->45 47 Tries to harvest and steal browser information (history, passwords, etc) 19->47 49 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->49 file8 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/76eb0a1ac3b7d29521384b9b1a600a6373c8c4ee93cdd2dac857f6add06c9800/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-04 16:48:09 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=o3vqugwdw7jjkijyjonruyakmnz4rrhospg5fwwik73k3udmtaaa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
00168316f03e50b7cf516c090729a168491ff2bf8f3538abc8f64489c86ebd8b
AgentTesla
1d835ccaee0da78b01a8e8b1d738f195c8fc08ddcfa7da17223645a2bf47df04
AgentTesla
482f922e584a1ef5f437364eef06912138be00e663b4198733adbda0890f454c
AgentTesla
6567bac453fabf7e0049d881db8ee06561d7aee2262b8181c8e8788a3e18999d
AgentTesla
97c2a0d5488cbe9217f472134da4dd7f817376a864f5f5955f9d27edf80804fd
AgentTesla
a78982f275b83bfca636dca08c404c5952fbf86cba13813fb6d5e2f12ff60986
AgentTesla
a9722b9126812d59f88ab4964f1a8cd0ba8fa40a7f2a4265a421bab1810accba
AgentTesla
e0f7770371bb6692870714c68bc5e4d770864d3fee263a1fc6defbca0d9d299e
AgentTesla
ec0f65afbe2adb5bccb4d4b0fa58353791deb99e42a2583828442a68af1cd235
AgentTesla
f155dd64a514c9ea5ffc36222d1c66c8daf6416945dbc8e8dd7a5b2cefae02d3
AgentTesla
+ 10'608 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla persistence
Link:
https://tria.ge/reports/200804-25wfw97cg2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: RenamesItself
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Reads data files stored by FTP clients
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/76eb0a1ac3b7d29521384b9b1a600a6373c8c4ee93cdd2dac857f6add06c9800

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

z 16db1dd4ef4108c834c131c027aa2b6ca7def74b96daf776d61cfe517f6fa17d

AgentTesla

Executable exe 76eb0a1ac3b7d29521384b9b1a600a6373c8c4ee93cdd2dac857f6add06c9800

(this sample)

  
Dropped by
MD5 0f4454e000e0818a712dc5f6343e5405
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/38866/
  
Dropped by
SHA256 16db1dd4ef4108c834c131c027aa2b6ca7def74b96daf776d61cfe517f6fa17d

Comments