MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f1a5608a441dd2ec272cce425b7961216b6255c1b239fdfd55f6b537d7ec35f7. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f1a5608a441dd2ec272cce425b7961216b6255c1b239fdfd55f6b537d7ec35f7
SHA3-384 hash: 3bd640f9e1db40e4a4dcb2b15b94c7644a04c38d0048f25986fc4811cc6f1aad3bc2b82e658353bffe3d6a958be05b1a
SHA1 hash: 58166ddf3aff2dca794d1f95acd87e7c6c39ca97
MD5 hash: 7e4995afc02322a52a2b272977a6794e
humanhash: tango-uncle-black-table
File name:Swift Doc.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:617'472 bytes
First seen:2021-05-17 06:11:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:fv+NhKYnCWqaNAXdQyYr7M//4QK1gppdB95Gc9qU8RzLz:xXQyYr7M34Q9p3Bf9x8R3
Threatray 4'985 similar samples on MalwareBazaar
TLSH 59D4F12236E9A764FABD53390122924057F2FD1BD772DA1D7EEA344D0C32AC5C262763
Reporter lowmal3
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
1
# of downloads :
142
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Swift Doc.exe
Verdict:
Malicious activity
Analysis date:
2021-05-17 06:12:41 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/5ebe3fb7-3820-40dc-8190-db5862ecdf73

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

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/783302
Signature
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Queries sensitive video device information (via WMI, Win32_VideoController, 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 access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 415698 Sample: Swift Doc.exe Startdate: 17/05/2021 Architecture: WINDOWS Score: 100 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Found malware configuration 2->43 45 Multi AV Scanner detection for dropped file 2->45 47 14 other signatures 2->47 7 Swift Doc.exe 7 2->7         started        process3 file4 29 C:\Users\user\AppData\...\llIxLvhXTO.exe, PE32 7->29 dropped 31 C:\Users\...\llIxLvhXTO.exe:Zone.Identifier, ASCII 7->31 dropped 33 C:\Users\user\AppData\Local\...\tmpFE73.tmp, XML 7->33 dropped 35 C:\Users\user\AppData\...\Swift Doc.exe.log, ASCII 7->35 dropped 49 Adds a directory exclusion to Windows Defender 7->49 51 Injects a PE file into a foreign processes 7->51 11 Swift Doc.exe 7->11         started        15 powershell.exe 23 7->15         started        17 powershell.exe 26 7->17         started        19 2 other processes 7->19 signatures5 process6 dnsIp7 37 nenostore.com 162.241.148.13, 49767, 587 UNIFIEDLAYER-AS-1US United States 11->37 39 mail.nenostore.com 11->39 53 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->53 55 Tries to steal Mail credentials (via file access) 11->55 57 Tries to harvest and steal ftp login credentials 11->57 59 2 other signatures 11->59 21 conhost.exe 15->21         started        23 conhost.exe 17->23         started        25 conhost.exe 19->25         started        27 conhost.exe 19->27         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f1a5608a441dd2ec272cce425b7961216b6255c1b239fdfd55f6b537d7ec35f7/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-05-16 11:06:17 UTC
AV detection:
16 of 29 (55.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6gswbcsedxjoyjzmzzbfw6lbefvwevobwi4737kv622tpv7mgx3q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 4'975 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla evasion keylogger spyware stealer trojan
Link:
https://tria.ge/reports/210517-c7laavfj9n/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
AgentTesla Payload
Looks for VirtualBox Guest Additions in registry
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f1a5608a441dd2ec272cce425b7961216b6255c1b239fdfd55f6b537d7ec35f7

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:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

AgentTesla

Executable exe f1a5608a441dd2ec272cce425b7961216b6255c1b239fdfd55f6b537d7ec35f7

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments