MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 effc3dd49035c71a38605f78ba8937d8c04f27c84ada103c062e0c475c738dde. 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: effc3dd49035c71a38605f78ba8937d8c04f27c84ada103c062e0c475c738dde
SHA3-384 hash: 875cdd2b2c099e5ea3e7b873ae7b1bb3d07db6a77e14ca3b1a8d6207afd992a050f448bb47df3eca928dbd0ff1ebe057
SHA1 hash: ec853a1c9b74392d478baa6643859889b22f0ccf
MD5 hash: 76fb7dc87ecb7d540b387b610928cc80
humanhash: mango-oklahoma-tennis-carbon
File name:SEACON BRAZIL DRAFT SOF.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:671'744 bytes
First seen:2020-08-31 05:55:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:snsqs5E4xqjOSqEIsUivwgjKe2SeFy9XR2QcNxXZ+Mh2:snguiqjOSqEIslvOe/eFMXJcNiM0
Threatray 10'616 similar samples on MalwareBazaar
TLSH E1E422602ABD8B73CDFD5FFCA95C30342B7490B9450AF765AC8971EA32E27488109793
Reporter abuse_ch
Tags:AgentTesla Endurance exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: 162-241-214-233.unifiedlayer.com
Sending IP: 162.241.214.233
From: "山东佳良国际物流有限公司" <minscoqingdao@126.in.net>
Reply-To: "山东佳良国际物流有限公司" <minscoqingdao@126.in.net>
Subject: M/V SEACON BRAZIL // DEPARTURE REPORT/MV SEACON BRAZI --DISCHARGING PETCOKE AT RIZHAO--DAILY REPORT
Attachment: SEACON BRAZIL DRAFT SOF.rar (contains "SEACON BRAZIL DRAFT SOF.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
86
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/53260/
Detection(s):
SecuriteInfo.com.W32.Trojan-7.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
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/454881
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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 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 dnsIp2 2 Behavior Graph ID: 279818 Sample: SEACON BRAZIL DRAFT SOF.exe Startdate: 31/08/2020 Architecture: WINDOWS Score: 100 30 smtp.yandex.ru 2->30 32 smtp.yandex.com 2->32 50 Found malware configuration 2->50 52 Multi AV Scanner detection for submitted file 2->52 54 Yara detected AgentTesla 2->54 56 5 other signatures 2->56 7 SEACON BRAZIL DRAFT SOF.exe 3 2->7         started        11 WNRUXJ.exe 3 2->11         started        13 WNRUXJ.exe 2 2->13         started        signatures3 process4 file5 28 C:\Users\...\SEACON BRAZIL DRAFT SOF.exe.log, ASCII 7->28 dropped 58 Injects a PE file into a foreign processes 7->58 15 SEACON BRAZIL DRAFT SOF.exe 2 5 7->15         started        60 Multi AV Scanner detection for dropped file 11->60 62 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->62 64 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 11->64 20 WNRUXJ.exe 2 11->20         started        22 WNRUXJ.exe 13->22         started        signatures6 process7 dnsIp8 34 smtp.yandex.ru 77.88.21.158, 49728, 49741, 587 YANDEXRU Russian Federation 15->34 36 192.168.2.1 unknown unknown 15->36 38 smtp.yandex.com 15->38 24 C:\Users\user\AppData\Roaming\...\WNRUXJ.exe, PE32 15->24 dropped 26 C:\Users\user\...\WNRUXJ.exe:Zone.Identifier, ASCII 15->26 dropped 40 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->40 42 Tries to steal Mail credentials (via file access) 15->42 44 Tries to harvest and steal ftp login credentials 15->44 48 2 other signatures 15->48 46 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->46 file9 signatures10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/effc3dd49035c71a38605f78ba8937d8c04f27c84ada103c062e0c475c738dde/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-31 00:30:03 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=576d3veqgxdruodal54lvcjx3dae6j6ijlnbapagfygeoxdtrxpa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0d4d3af44ed0aa3154be8537fa238439090826f9f5cc264b967e60699f0e9d4a
AgentTesla
56839b17d875d76878a594fafa8e4ea0a8185391d43c6fcac8d500eb7baf6ebe
AgentTesla
5af795fb7f2afc8329d025b4b5f053942b82c75f4b3796a1a53f77e97e74019d
AgentTesla
7758c91a218460dfc6cc95e5c106c50431cdd6cad667b4e8c98bee960ff06b3a
AgentTesla
c176d7b838d9146e64732d143cda3c07f4c76b693ab940ca045a51d07c52faae
AgentTesla
d171c033a6424ac3d0fc71f4323c1c340256c02228d4fb0c49124af4abab6be0
AgentTesla
eb4900d71cfd218e3eb1eb920e96d4466796772830d964424ae42878ef9b2f8d
AgentTesla
ec17348438d8e6c04f18e329968d37c5d1be05148a7b770e926b8ebeca75f06e
AgentTesla
f59c1bb4e7ae935dbc9f3cf07c62d90f7e7396e7d7efbf35b81dcd442226c8e3
AgentTesla
fb51d5ec0f3c5b0ea82d4a37cd9a53e070efaaa4f067ea89301c089e0dea8a76
AgentTesla
+ 10'606 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/200831-4y5aky8sb2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email 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:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/effc3dd49035c71a38605f78ba8937d8c04f27c84ada103c062e0c475c738dde

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 b26d90021ab8b159624485bc89b003df5ea1b5258be35a9f4103d2ba86a478d9

AgentTesla

Executable exe effc3dd49035c71a38605f78ba8937d8c04f27c84ada103c062e0c475c738dde

(this sample)

  
Dropped by
MD5 8e8a9a23856de8b67712125ee6e4f4a9
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/53260/
  
Dropped by
SHA256 b26d90021ab8b159624485bc89b003df5ea1b5258be35a9f4103d2ba86a478d9

Comments