MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7ff17265ef53a76f3f15ca48db077a3c5dd3d0a5117e0fdfede0f7b32aa6d3a7. 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: 7ff17265ef53a76f3f15ca48db077a3c5dd3d0a5117e0fdfede0f7b32aa6d3a7
SHA3-384 hash: d52f9454ee2241ae13f02a45111cc8985b4f11b6a837643200f85d55f59f83b548200ddb4048af7e0d446636c23cd22e
SHA1 hash: 5019b92a97ac9076bb5bd9b59ac271c69256ea59
MD5 hash: c0e318583ee5fe88cf981ee251fadc9e
humanhash: victor-delta-fillet-pluto
File name:JW50941PI17082020.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:892'416 bytes
First seen:2020-08-17 17:44:02 UTC
Last seen:Never
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:AS1QbvgWK5WpL4ahZZ+AFzCYR0P5nW36HW:5QbvxaWuqJZ3x
TLSH 441507393E816D28E83E093410E895D27370AA8A3ED1C72F6ADF43DC7F0269B3756559
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: doksan.com
Sending IP: 155.94.136.61
From: EXPORT PISTONSAN <doksan@doksan.com>
Subject: RE: Fardin Rezaie / final order list
Attachment: JW50941PI17082020.z (contains "JW50941PI17082020.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
73
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/47223/
Detection(s):
SecuriteInfo.com.Fareit-FVTC0E318583EE5.11973.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Sending a UDP request
Creating a file
Running batch commands
Launching a process
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
51 / 100
Link:
https://www.joesandbox.com/analysis/434383
Signature
.NET source code contains very large array initializations
Creates an autostart registry key pointing to binary in C:\Windows
Sigma detected: Add file from suspicious location to autostart registry
Tries to detect virtualization through RDTSC time measurements
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 269575 Sample: JW50941PI17082020.exe Startdate: 18/08/2020 Architecture: WINDOWS Score: 51 32 Yara detected AgentTesla 2->32 34 Sigma detected: Add file from suspicious location to autostart registry 2->34 36 .NET source code contains very large array initializations 2->36 38 Tries to detect virtualization through RDTSC time measurements 2->38 7 JW50941PI17082020.exe 9 2->7         started        11 pcalua.exe 1 1 2->11         started        13 pcalua.exe 1 2->13         started        process3 file4 26 C:\Users\user\AppData\Roaming\...\chromee.exe, PE32 7->26 dropped 28 C:\Users\user\AppData\...\AgileDotNetRT.dll, PE32 7->28 dropped 30 C:\Users\user\AppData\...\InstallUtil.exe, PE32 7->30 dropped 42 Tries to detect virtualization through RDTSC time measurements 7->42 15 cmd.exe 1 7->15         started        17 chromee.exe 7->17         started        signatures5 process6 process7 19 reg.exe 1 1 15->19         started        22 conhost.exe 15->22         started        24 InstallUtil.exe 17->24         started        signatures8 40 Creates an autostart registry key pointing to binary in C:\Windows 19->40
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7ff17265ef53a76f3f15ca48db077a3c5dd3d0a5117e0fdfede0f7b32aa6d3a7/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-17 07:58:28 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=p7yxezppkotw6pyvzjenwb32hro5huffcf7a7x7n4d33gkvg2otq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
agilenet keylogger stealer persistence trojan spyware family:agenttesla
Link:
https://tria.ge/reports/200817-kmjl66mcwe/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Obfuscated with Agile.Net obfuscator
Executes dropped EXE
AgentTesla Payload
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/7ff17265ef53a76f3f15ca48db077a3c5dd3d0a5117e0fdfede0f7b32aa6d3a7

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 8119f644f6e675404d18a998490d82d257c94fb4e1835b71580861b865f6d89b

AgentTesla

Executable exe 7ff17265ef53a76f3f15ca48db077a3c5dd3d0a5117e0fdfede0f7b32aa6d3a7

(this sample)

  
Dropped by
MD5 ba1d0162ef6657c325d887c7cfc50441
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/47223/
  
Dropped by
SHA256 8119f644f6e675404d18a998490d82d257c94fb4e1835b71580861b865f6d89b

Comments