MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b34d8ebdd54aa4aa65dd2254171ee49c7d275ebafbbb10fe0a9c3283044f2b29. 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: b34d8ebdd54aa4aa65dd2254171ee49c7d275ebafbbb10fe0a9c3283044f2b29
SHA3-384 hash: b5c685161c5537a5d8713da86b80f247822157922bf8ff830bf24d4835f1392df9d688a49b5a521e5fc71b185ce8de72
SHA1 hash: 68289c9558374d706bffcc2a94d38457e9bd04db
MD5 hash: 7a18603664ac85727236bbe02b6785b7
humanhash: helium-salami-bacon-jupiter
File name:overdue account.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'082'368 bytes
First seen:2020-09-10 08:58:54 UTC
Last seen:2020-09-10 09:44:09 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:D/jLLwjQdLaIeKsNHBMhbIgmjtq90876j0KDr:D/vxdcHcIgmhu0876oK3
TLSH E435CF2115BCDF66F5980DF8A225F23297785FBA89A7C100E8B571AF96367083C84637
Reporter cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
116
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/58340/
Detection(s):
SecuriteInfo.com.Trojan.Inject3.58449.1557.23117.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Forced shutdown of a system process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Enabling autorun by creating a file
Unauthorized injection to a system process
Changing the hosts file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/462995
Signature
.NET source code contains potential unpacker
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Sigma detected: Scheduled temp file as task from temp location
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 AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 283900 Sample: overdue account.exe Startdate: 10/09/2020 Architecture: WINDOWS Score: 100 59 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->59 61 Found malware configuration 2->61 63 Multi AV Scanner detection for dropped file 2->63 65 9 other signatures 2->65 7 overdue account.exe 6 2->7         started        10 WCPCe.exe 2 2->10         started        12 WCPCe.exe 1 2->12         started        process3 file4 33 C:\Users\user\AppData\Roaming\ZZSgeKqvo.exe, PE32 7->33 dropped 35 C:\Users\user\AppData\Local\...\tmp6B12.tmp, XML 7->35 dropped 37 C:\Users\user\...\overdue account.exe.log, ASCII 7->37 dropped 14 RegSvcs.exe 2 4 7->14         started        19 RegSvcs.exe 7->19         started        21 schtasks.exe 1 7->21         started        23 RegSvcs.exe 7->23         started        25 conhost.exe 10->25         started        27 conhost.exe 12->27         started        process5 dnsIp6 43 prcpl.com 173.254.75.123, 49713, 587 UNIFIEDLAYER-AS-1US United States 14->43 45 mail.prcpl.com 14->45 39 C:\Users\user\AppData\Roaming\...\WCPCe.exe, PE32 14->39 dropped 41 C:\Windows\System32\drivers\etc\hosts, ASCII 14->41 dropped 47 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->47 49 Tries to steal Mail credentials (via file access) 14->49 51 Tries to harvest and steal ftp login credentials 14->51 57 3 other signatures 14->57 53 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 19->53 55 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 19->55 29 conhost.exe 21->29         started        31 conhost.exe 21->31         started        file7 signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b34d8ebdd54aa4aa65dd2254171ee49c7d275ebafbbb10fe0a9c3283044f2b29/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-09-10 03:07:49 UTC
File Type:
PE (.Net Exe)
Extracted files:
34
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wngy5povjkskuzo5ejkbohxetr6soxv27o5rb7qktqzigbcpfmuq._file
Verdict:
unknown
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer persistence spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200910-ljv1lyt3q2/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b34d8ebdd54aa4aa65dd2254171ee49c7d275ebafbbb10fe0a9c3283044f2b29

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 147bd8163da36cb0709dcab9cedc0cb3c4a4a7b06ff66b12f9c15149f73bfba2

AgentTesla

Executable exe b34d8ebdd54aa4aa65dd2254171ee49c7d275ebafbbb10fe0a9c3283044f2b29

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 147bd8163da36cb0709dcab9cedc0cb3c4a4a7b06ff66b12f9c15149f73bfba2
Cape
Cape
https://www.capesandbox.com/analysis/58340/

Comments