MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a27f85891571821ba5973efd1b4c65da9d1ab31e913978475406eb258dfac5f1. 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: 6


Intelligence 6 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a27f85891571821ba5973efd1b4c65da9d1ab31e913978475406eb258dfac5f1
SHA3-384 hash: 522af01a97a5924c37399d043640d09d03a95e6b03ce75759cf328e0bb25d9a0679f0d2109bbf834ac6949c03a207d16
SHA1 hash: afdc29606b1872f5cf7b65beb64e79f047d94b50
MD5 hash: bcce9dc22a472e15d1838250a0075014
humanhash: connecticut-bluebird-rugby-three
File name:FINANCIAL YEAR CLOSURE MEMO.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:462'848 bytes
First seen:2020-06-18 12:52:23 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:nuLKBL1hphHhDGa85+Czj0Wilyxf3y14:nueBhVEJjMyy1
Threatray 10'792 similar samples on MalwareBazaar
TLSH 51A4020A7A98CB12C479573DE0D314144379AEA77623E31E7FC472AD18A27E7650239F
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: no-reply.com
Sending IP: 95.211.208.50
From: Finance Manager <finanace@no-reply.com>
Subject: FINANCIAL YEAR CLOSURE MEMO
Attachment: FINANCIAL YEAR CLOSURE MEMO.r00 (contains "FINANCIAL YEAR CLOSURE MEMO.exe")

AgentTesla SMTP exfil server:
smtp.yandex.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
83
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/19796/
Detection(s):
SecuriteInfo.com.BehavesLike.Generic.fc.30295.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-06-18 13:36:29 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uj7ylcivogbbxjmxh36rwtdf3korvmy6se4xqr2ua3vsldp2yxyq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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319274d1c6c50850ea1fb7673c288c90b4df3420fd6362bac3fbfb93e3f1ea2d
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494f9dd6446590e875fa54a866cfc76c795f19722f2842d14d82590de96b6b68
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6e7b381441447157749ba664134682c01bad587614b29dab79aeab904419857d
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b32e124d79e22d6fa01bea107ce49b5247629f4c4be8b27242887f2151d9ac31
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bf7ae4c4b3df671cb890a8814463ad46ec4d6edb6da0fe9c9201c1d3d9bec52d
AgentTesla
+ 10'782 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware persistence keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200624-dt7fe91nvs/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Modifies service
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

r00 6d4dd83a286e0859f53748279ae2ddce4c7c6b599f51f95e8c59d46013dff470

AgentTesla

Executable exe a27f85891571821ba5973efd1b4c65da9d1ab31e913978475406eb258dfac5f1

(this sample)

  
Dropped by
MD5 7a028d84b5e0f1c5e7fd7792c5abf9a2
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 6d4dd83a286e0859f53748279ae2ddce4c7c6b599f51f95e8c59d46013dff470
Cape
Cape
https://www.capesandbox.com/analysis/19796/

Comments