MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a3ba4998aff2dc428edd861a0f26388d503f9e5ab3c42e6261cac37c4a2ec8be. 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: a3ba4998aff2dc428edd861a0f26388d503f9e5ab3c42e6261cac37c4a2ec8be
SHA3-384 hash: e4803884d743bf5fe7cddf3fac59d3356e8d224b3f5663836ed5dfe3300504ce585b7ca8e53b96589a5ce2f531fbac4d
SHA1 hash: 56d2012299ccaf265f848edc3a1c5896dd43ba15
MD5 hash: 8ba4391fbde83f2fbe520a19971f1981
humanhash: asparagus-georgia-mockingbird-apart
File name:New Order.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:456'192 bytes
First seen:2020-08-04 16:37:40 UTC
Last seen:2020-08-04 17:57:27 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 12288:78RnfqwEtLMK7pHkpbpci/iJUFDzf7M/:7818J7NkVpX/V1M/
Threatray 10'757 similar samples on MalwareBazaar
TLSH 38A4126D20555A1BF06B0A3F9C781503EE5BC01F1411D2AF6E7A409A997E72DFE08FB2
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: adaptiveaccess.com
Sending IP: 209.58.149.66
From: <sales@adaptiveaccess.com>
Subject: New Order
Attachment: New Order.zip (contains "New Order.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/38857/
Detection(s):
SecuriteInfo.com.Generic.mg.8ba4391fbde83f2f.6607.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/409807
Signature
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
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
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 access)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 257156 Sample: New Order.exe Startdate: 04/08/2020 Architecture: WINDOWS Score: 100 53 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->53 55 Found malware configuration 2->55 57 Yara detected AgentTesla 2->57 59 7 other signatures 2->59 6 New Order.exe 3 2->6         started        10 Payment slip.exe 3 2->10         started        12 Payment slip.exe 2 2->12         started        process3 file4 27 C:\Users\user\AppData\...27ew Order.exe.log, ASCII 6->27 dropped 61 Injects a PE file into a foreign processes 6->61 14 New Order.exe 2 5 6->14         started        19 New Order.exe 6->19         started        21 Payment slip.exe 2 10->21         started        23 Payment slip.exe 10->23         started        25 Payment slip.exe 2 12->25         started        signatures5 process6 dnsIp7 33 smtp.rezuit.pro 14->33 35 us2.smtp.mailhostbox.com 208.91.199.224, 49746, 587 PUBLIC-DOMAIN-REGISTRYUS United States 14->35 29 C:\Users\user\AppData\...\Payment slip.exe, PE32 14->29 dropped 31 C:\Users\...\Payment slip.exe:Zone.Identifier, ASCII 14->31 dropped 41 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->41 43 Installs a global keyboard hook 14->43 37 208.91.199.223, 49748, 587 PUBLIC-DOMAIN-REGISTRYUS United States 21->37 39 smtp.rezuit.pro 21->39 45 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 21->45 47 Tries to steal Mail credentials (via file access) 21->47 49 Tries to harvest and steal ftp login credentials 21->49 51 Tries to harvest and steal browser information (history, passwords, etc) 21->51 file8 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a3ba4998aff2dc428edd861a0f26388d503f9e5ab3c42e6261cac37c4a2ec8be/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-04 16:39:06 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uo5etgfp6loefdw5qyna6jryrvid7hs2wpcc4ytbzlbxysrozc7a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'747 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/200804-9smglb4pqx/
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of local email clients
Reads data files stored by FTP clients
Reads user/profile data of web browsers
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/a3ba4998aff2dc428edd861a0f26388d503f9e5ab3c42e6261cac37c4a2ec8be

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

zip 36182ab9d8c89836d218a6e77c7507a69c9e4fa3fa23470148bea859847ebc71

AgentTesla

Executable exe a3ba4998aff2dc428edd861a0f26388d503f9e5ab3c42e6261cac37c4a2ec8be

(this sample)

  
Dropped by
MD5 cc7d6e1a2865050262d9ddca84d384d0
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/38857/
  
Dropped by
SHA256 36182ab9d8c89836d218a6e77c7507a69c9e4fa3fa23470148bea859847ebc71

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