MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b55e856692daa6a9b51b3e8e5ca4ef2d78721fabd66d99b181509736a36d0c72. 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: 7


Intelligence 7 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b55e856692daa6a9b51b3e8e5ca4ef2d78721fabd66d99b181509736a36d0c72
SHA3-384 hash: 12b9b36eff4e39ffd7dec179f7ab3c6c5fd94c61100cd043b3116cbc7e42c4ab7ca47950ff97138400843b548d4b1389
SHA1 hash: b29642207ad240e066f3e31ea02ba2093f914ec9
MD5 hash: c1dc3115fb5af29c1cedcc7cbc953d18
humanhash: freddie-ceiling-crazy-saturn
File name:scanned cheque.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:614'912 bytes
First seen:2020-07-07 05:40:52 UTC
Last seen:2020-07-07 07:22:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:fpKgFZ3RS9y2oHhOx3FzF5BB7bc6Fwfe8V4+4Mo4FRV:K8pgRz5BB7mdRjo8
Threatray 10'616 similar samples on MalwareBazaar
TLSH 49D4E4C0621631FEF2E4AEB226D4A043767C27B585CD952BF41D61D630DBEA64720B3E
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mx.tkb.pl
Sending IP: 89.161.65.153
From: Dolj frf <dolj@frf-ajf.ro>
Reply-To: railtrexc@gmail.com
Subject: Bank Cheque Invoice
Attachment: scanned cheque.rar (contains "scanned cheque.exe")

AgentTesla FTP exfil server:
ftp.ciftci.com.tr:21

Intelligence

File Origin
# of uploads :
2
# of downloads :
75
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/21811/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.43450529.22673.16402.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Using the Windows Management Instrumentation requests
Reading critical registry keys
Launching a service
Creating a file
Stealing user critical data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b55e856692daa6a9b51b3e8e5ca4ef2d78721fabd66d99b181509736a36d0c72/
Threat name:
ByteCode-MSIL.Backdoor.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2020-07-06 21:45:37 UTC
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wvpikzus3ktktni3h2hfzjhpfv4heh5l2zwztmmbkcltni3nbrza._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'606 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200707-yrhkyasbfx/
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Reads user/profile data of local email clients
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: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 bd959e99218acfb6a92cd1eaffa887f1ef5864c13559d65b23f13fc506f4db41

AgentTesla

Executable exe b55e856692daa6a9b51b3e8e5ca4ef2d78721fabd66d99b181509736a36d0c72

(this sample)

  
Dropped by
MD5 78a87f78ae8ae0e39968f212030024f5
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 bd959e99218acfb6a92cd1eaffa887f1ef5864c13559d65b23f13fc506f4db41
Cape
Cape
https://www.capesandbox.com/analysis/21811/

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