MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7850e6c98a4f6ae777218f3a1be42fed155748286909338062e8d857cf383f94. 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: 11


Intelligence 11 IOCs YARA 6 File information Comments

SHA256 hash: 7850e6c98a4f6ae777218f3a1be42fed155748286909338062e8d857cf383f94
SHA3-384 hash: ed4d7e85d635de57615ec802c00abe2e63936e428702614e0c6f11db23582036c782f9054ac013fa527fa0ddc61332a9
SHA1 hash: e5688a0a95649cec6b26cde77ef7a546b80235fa
MD5 hash: 6b22444389c45699a7b838ae844ea15c
humanhash: freddie-thirteen-washington-happy
File name:Bank swift.exe
Download: download sample
Signature AgentTesla
File size:994'304 bytes
First seen:2021-06-02 19:05:31 UTC
Last seen:2021-06-03 05:43:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:iCO+dPKJAnWBdSkKJpKwJ2zsW94gzioGP2GTlBxOMd5m62P8bgqAtaYtjOlW9cCq:i6W9qpusgMirCwiE95g+
Threatray 5'534 similar samples on MalwareBazaar
TLSH E6255A2439FA902AF173EFB94BD47596DA6FBA733707A45D109003864B23A81EDC153E
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
4
# of downloads :
199
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Bank swift.exe
Verdict:
No threats detected
Analysis date:
2021-06-02 19:08:57 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Creating a window
Using the Windows Management Instrumentation requests
Sending a UDP request
Creating a file in the %AppData% subdirectories
Forced shutdown of a system process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Changing the hosts file
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
spre.troj.adwa.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
.NET source code contains very large strings
Allocates memory in foreign processes
Contains functionality to register a low level keyboard hook
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
Machine Learning detection for sample
Modifies the hosts 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: RegAsm connects to smtp port
Sigma detected: Suspicious Process Start Without DLL
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 428613 Sample: Bank swift.exe Startdate: 02/06/2021 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 Multi AV Scanner detection for submitted file 2->43 45 7 other signatures 2->45 6 Bank swift.exe 3 2->6         started        10 kprUEGC.exe 2 2->10         started        12 kprUEGC.exe 1 2->12         started        process3 file4 23 C:\Users\user\AppData\...\Bank swift.exe.log, ASCII 6->23 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 RegAsm.exe 2 4 6->14         started        19 conhost.exe 10->19         started        21 conhost.exe 12->21         started        signatures5 process6 dnsIp7 29 smtp.framafilms.com 185.220.245.14, 49741, 587 SEEWEBWebhostingcolocationandcloudservicesIT Switzerland 14->29 25 C:\Users\user\AppData\Roaming\...\kprUEGC.exe, PE32 14->25 dropped 27 C:\Windows\System32\drivers\etc\hosts, ASCII 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 7 other signatures 14->37 file8 signatures9
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-06-02 14:46:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
14 of 28 (50.00%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
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 Payload
AgentTesla
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:ach_AgentTesla_20200929
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Rule name:RSharedStrings
Author:Katie Kleemola
Description:identifiers for remote and gmremote
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_agent_tesla_v1
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information


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

Malspam

AgentTesla

Executable exe 7850e6c98a4f6ae777218f3a1be42fed155748286909338062e8d857cf383f94

(this sample)

  
Delivery method
Distributed via e-mail attachment

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