MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40d3ca5791d5b0dbbcfac86f352a5526dae74f9f828346b92b448787c654b331. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 40d3ca5791d5b0dbbcfac86f352a5526dae74f9f828346b92b448787c654b331
SHA3-384 hash: 7f13f7469c7e4bef60685696580da81ae7bc6d326a5de331aff47ee419b0544de9babad7d2750ac728b2bfb55e4a91ce
SHA1 hash: 579b99b4b57e9895c3cb47e264631647d01a9d64
MD5 hash: dee4e3c479b59cbb0cd65f9b85dd7b2e
humanhash: carolina-mississippi-beer-magazine
File name:DHL NO.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:431'104 bytes
First seen:2020-08-12 18:27:11 UTC
Last seen:2020-08-12 20:01:28 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 12288:3TtK7QXYJ3afzAOT0EQTjxprmSPDNj79sH:piMYImmi99s
Threatray 10'658 similar samples on MalwareBazaar
TLSH E694023C66F4D613D27E87BEA0F3650407B4971B2053FFDAA8E4A4C51A6EB4208E515F
Reporter abuse_ch
Tags:AgentTesla DHL exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mail.environment.go.ke
Sending IP: 41.89.1.174
From: ADMIN <cas@environment.go.ke>
Subject: FW: RE: RE: RE: The new offer for BKC
Attachment: DHL NO.rar (contains "DHL NO.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
73
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/44421/
Detection(s):
SecuriteInfo.com.Generic.mg.dee4e3c479b59cbb.24080.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a window
Creating a file
Sending a UDP request
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Unauthorized injection to a system process
Changing the hosts file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/423619
Signature
Hides that the sample has been downloaded from the Internet (zone.identifier)
Maps a DLL or memory area into another process
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)
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)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 264267 Sample: DHL NO.exe Startdate: 13/08/2020 Architecture: WINDOWS Score: 84 68 Yara detected AgentTesla 2->68 13 DHL NO.exe 1 2->13         started        16 sRfDVrD.exe 2 2->16         started        18 sRfDVrD.exe 1 2->18         started        process3 signatures4 100 Writes to foreign memory regions 13->100 102 Maps a DLL or memory area into another process 13->102 20 DHL NO.exe 13->20         started        23 RegAsm.exe 13->23         started        25 RegAsm.exe 2 4 13->25         started        27 conhost.exe 16->27         started        29 conhost.exe 18->29         started        process5 signatures6 70 Writes to foreign memory regions 20->70 72 Maps a DLL or memory area into another process 20->72 31 DHL NO.exe 20->31         started        34 RegAsm.exe 2 20->34         started        74 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 23->74 76 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 23->76 78 Hides that the sample has been downloaded from the Internet (zone.identifier) 25->78 process7 signatures8 116 Writes to foreign memory regions 31->116 118 Maps a DLL or memory area into another process 31->118 36 DHL NO.exe 31->36         started        39 RegAsm.exe 3 31->39         started        process9 signatures10 80 Writes to foreign memory regions 36->80 82 Maps a DLL or memory area into another process 36->82 41 DHL NO.exe 36->41         started        44 RegAsm.exe 36->44         started        84 Hides that the sample has been downloaded from the Internet (zone.identifier) 39->84 process11 signatures12 90 Writes to foreign memory regions 41->90 92 Maps a DLL or memory area into another process 41->92 46 DHL NO.exe 41->46         started        49 RegAsm.exe 41->49         started        51 RegAsm.exe 41->51         started        94 Hides that the sample has been downloaded from the Internet (zone.identifier) 44->94 process13 signatures14 104 Writes to foreign memory regions 46->104 106 Maps a DLL or memory area into another process 46->106 53 DHL NO.exe 46->53         started        56 RegAsm.exe 46->56         started        108 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 49->108 110 Tries to steal Mail credentials (via file access) 49->110 112 Tries to harvest and steal ftp login credentials 49->112 114 2 other signatures 49->114 process15 signatures16 86 Writes to foreign memory regions 53->86 88 Maps a DLL or memory area into another process 53->88 58 DHL NO.exe 53->58         started        61 RegAsm.exe 53->61         started        process17 file18 96 Writes to foreign memory regions 58->96 98 Maps a DLL or memory area into another process 58->98 64 RegAsm.exe 58->64         started        66 C:\Users\user\AppData\Roaming\...\sRfDVrD.exe, PE32 61->66 dropped signatures19 process20
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/40d3ca5791d5b0dbbcfac86f352a5526dae74f9f828346b92b448787c654b331/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-12 15:07:52 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=idj4uv4r2wynxph2zbxtkksve3noot47qkbunojlisdyprsuwmyq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
3c3790756d45d5d2b17d41fcde5441129464268dd6f9c0b6c0af689487a35137
AgentTesla
43af6ba4b7f666fe6a4ea1ef96142ed84a709d1e41bbd88c531882d88401899d
AgentTesla
4540c3754b0563ef0392b1b0cacab2865d1638abb6dbe461ce3c7a912cfe3dad
AgentTesla
66332e53989ee89d3c963cecd82424b45e332cadb2d9e13ba13f9f49d22b25ee
AgentTesla
7dc693a09183412e6567e278cad02a34b8d4779ba93fddf8c34b1daaf78400e1
AgentTesla
878770eb180f92d911dbb519c93aac3b4b63269f45d8af9500f6a144e6635b7d
AgentTesla
9748273b3c0d1351dd509be12aa2f6787e385beea419de9adfd9be8f999bfa0c
AgentTesla
a465d738b180ef7304641b26840855fc15676b2d04a52b67388dc1cd55c29cae
AgentTesla
e2cbded6f889f93a08c2889a5c93385b3b58a569169c17cf08fc667fa8869021
AgentTesla
e55e9cd2c9714d2307617574b4426ba13b351433955ea049125bd0eaf8276c5c
AgentTesla
+ 10'648 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer persistence trojan spyware family:agenttesla
Link:
https://tria.ge/reports/200812-1v95eytsvn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
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/40d3ca5791d5b0dbbcfac86f352a5526dae74f9f828346b92b448787c654b331

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 90d2ec9fc5e7b1963586e282e3844006bd5caa624fc0159e1f772fa3b1f3f1f2

AgentTesla

Executable exe 40d3ca5791d5b0dbbcfac86f352a5526dae74f9f828346b92b448787c654b331

(this sample)

  
Dropped by
MD5 32e334af87b8fac61eaede65dba934a5
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/44421/
  
Dropped by
SHA256 90d2ec9fc5e7b1963586e282e3844006bd5caa624fc0159e1f772fa3b1f3f1f2

Comments