MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 259d1d763c82d506eae39f171eaff8037ac33e5f329b6a546b667734351f068f. 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: 10


Intelligence 10 IOCs YARA 6 File information Comments
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SHA256 hash: 259d1d763c82d506eae39f171eaff8037ac33e5f329b6a546b667734351f068f
SHA3-384 hash: 71324c5baaf1d8f40b8f952e8831804a0093bc8e593b3a48a50b8668d3734aef72c555226ebd8341c02d501cf5d18726
SHA1 hash: 4614193dd013c1386e39d5211765efd8aa30f664
MD5 hash: 96667ba436a14642962f0a86cc99b2d8
humanhash: sad-snake-freddie-victor
File name:TT Payment Form.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:241'152 bytes
First seen:2022-03-21 10:16:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 3072:/jX2qCu5Z6ZWaNlMMdG4UG/A2dedGTJ/7kYmwpWU7/3lLTqKnoBojS+:iq+RHMAIGI2pjkYNJVqKoBo2
Threatray 15'813 similar samples on MalwareBazaar
TLSH T1E634F94334808598CE7D55F6B2178184339ADDBFD658A60C7BC873A35FF2AA20936B17
File icon (PE):PE icon
dhash icon d2b09c8ecebade6e (3 x AveMariaRAT, 2 x AgentTesla, 2 x Formbook)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
225
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/253512/
Detection(s):
SecuriteInfo.com.Trojan.Downloader.10124.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/623850a80cd58dbd92cdc61b/reports/842f2ee2-dd0f-4251-9bf1-7b87e036ca9c/overview
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.
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4d392358-d666-43f3-9153-a8c7cda69c7c
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/960616
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Creates an undocumented autostart registry key
Drops executable to a common third party application directory
Executable has a suspicious name (potential lure to open the executable)
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
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)
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)
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Yara detected MSILDownloaderGeneric
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 593098 Sample: TT Payment Form.exe Startdate: 21/03/2022 Architecture: WINDOWS Score: 100 56 mail.zealaqua.com 2->56 62 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->62 64 Found malware configuration 2->64 66 Malicious sample detected (through community Yara rule) 2->66 68 14 other signatures 2->68 8 TT Payment Form.exe 15 7 2->8         started        13 kECjS.exe 14 3 2->13         started        15 kECjS.exe 3 2->15         started        signatures3 process4 dnsIp5 58 cdn.discordapp.com 162.159.130.233, 443, 49752, 49774 CLOUDFLARENETUS United States 8->58 48 C:\Users\user\AppData\Roaming\...\Docx.exe, PE32 8->48 dropped 50 C:\Users\user\...\Docx.exe:Zone.Identifier, ASCII 8->50 dropped 52 C:\Users\user\...\TT Payment Form.exe.log, ASCII 8->52 dropped 78 Creates an undocumented autostart registry key 8->78 80 Drops executable to a common third party application directory 8->80 82 Injects a PE file into a foreign processes 8->82 17 TT Payment Form.exe 2 5 8->17         started        22 cmd.exe 1 8->22         started        84 Multi AV Scanner detection for dropped file 13->84 86 Machine Learning detection for dropped file 13->86 24 cmd.exe 13->24         started        26 kECjS.exe 13->26         started        60 162.159.129.233, 443, 49776 CLOUDFLARENETUS United States 15->60 28 cmd.exe 15->28         started        file6 signatures7 process8 dnsIp9 54 mail.zealaqua.com 192.185.129.96, 49772, 49821, 587 UNIFIEDLAYER-AS-1US United States 17->54 42 C:\Users\user\AppData\Roaming\...\kECjS.exe, PE32 17->42 dropped 44 C:\Windows\System32\drivers\etc\hosts, ASCII 17->44 dropped 46 C:\Users\user\...\kECjS.exe:Zone.Identifier, ASCII 17->46 dropped 70 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->70 72 Tries to steal Mail credentials (via file / registry access) 17->72 74 Tries to harvest and steal ftp login credentials 17->74 76 3 other signatures 17->76 30 conhost.exe 22->30         started        32 timeout.exe 1 22->32         started        34 conhost.exe 24->34         started        36 timeout.exe 24->36         started        38 conhost.exe 28->38         started        40 timeout.exe 28->40         started        file10 signatures11 process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/259d1d763c82d506eae39f171eaff8037ac33e5f329b6a546b667734351f068f/
Threat name:
ByteCode-MSIL.Trojan.Tnega
Create hunting rule
Status:
Malicious
First seen:
2022-03-20 21:48:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
29
AV detection:
24 of 41 (58.54%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ewor25r4qlkqn2xdt4lr5l7yan5mgps7gknwuvdlmz3tini7a2hq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
514844fc62522a934bebb29f422eda6aace2965d3cdd1ad717f05c26280f09e4
AgentTesla
52070720ff5c4b6095e4a7aa082f7647fbc576f3e4ff538b941131fad8842a1f
AgentTesla
5cd21e8b1c72c3607078f4e5e9e42cb3a347afa3da338cbac00c8fe16512b61c
AgentTesla
76bfbb524e921f7639ecbb2c7d40e072d5b45aa4b8521a45d82d85f96743afeb
AgentTesla
a0c3371953d59c8e30df713a05e21c633ab4496bcde543b727eda24cc8456116
AgentTesla
+ 15'803 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer suricata trojan
Link:
https://tria.ge/reports/220321-mbc4sabeep/
Behaviour
Delays execution with timeout.exe
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
Adds Run key to start application
Checks computer location settings
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
AgentTesla
suricata: ET MALWARE AgentTesla Exfil Via SMTP
Unpacked files
SH256 hash:
259d1d763c82d506eae39f171eaff8037ac33e5f329b6a546b667734351f068f
MD5 hash:
96667ba436a14642962f0a86cc99b2d8
SHA1 hash:
4614193dd013c1386e39d5211765efd8aa30f664
Link:
https://www.unpac.me/results/8c75b6ad-df20-49ce-a672-e53463a31f7b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/259d1d763c82d506eae39f171eaff8037ac33e5f329b6a546b667734351f068f

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:dsc
Create hunting rule
Author:Aaron DeVera
Description:Discord domains
Rule name:INDICATOR_SUSPICIOUS_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_Discord_Attachments_URL
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a PE file that contains an Discord Attachments URL. This is often used by Malware to download further payloads
Rule name:SUSP_PE_Discord_Attachment_Oct21_1
Create hunting rule
Author:Florian Roth
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research

File information

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

Malspam

AgentTesla

Executable exe 259d1d763c82d506eae39f171eaff8037ac33e5f329b6a546b667734351f068f

(this sample)

  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/253512/

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