MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3757e17c90a0533f757b3ab31ae4886f55a34f3af775df5eb5e14982bb7dfcfd. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3757e17c90a0533f757b3ab31ae4886f55a34f3af775df5eb5e14982bb7dfcfd
SHA3-384 hash: 5438bdefa6caced0dc72102d0b5c9e455fe86b32a4c21ea4a464c7ea0af1b1014daa9d5b66e1e5bf467b3ea64ca6a21b
SHA1 hash: 10e36f4053b749a884af17e3d48fad1b9f417ed1
MD5 hash: 7e1cb553519f23b3e61ed341f1890763
humanhash: october-north-magnesium-hamper
File name:Lmnfh.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:13'824 bytes
First seen:2022-03-16 11:52:44 UTC
Last seen:2022-03-16 13:58:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 192:S90X0J5K9MIRau/stRBQJPqLYQQj+qjhee:rEfWMIRau/stCqLYbjvjhe
Threatray 15'436 similar samples on MalwareBazaar
TLSH T14352C860B3A940EBEC7F05315D1BCB2106716DEED8D3D72D71CAB60B49B3310856A6AA
File icon (PE):PE icon
dhash icon d2e8ecb2b2a2b282 (106 x AgentTesla, 106 x Formbook, 24 x RedLineStealer)
Reporter malwarelabnet
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
246
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/251392/
Detection(s):
SecuriteInfo.com.Trojan.Downloader.10124.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Reading critical registry keys
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Changing the hosts file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6231cff40cd58dbd92a5fc5b/reports/bb9c9ab4-eb05-4252-9ca9-24ae10d4246e/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b4995b96-1959-479f-a0ea-e7dfc544b9c6
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/957914
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Drops executable to a common third party application directory
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Modifies the hosts file
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 / registry access)
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Yara detected MSILDownloaderGeneric
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 590394 Sample: Lmnfh.exe Startdate: 16/03/2022 Architecture: WINDOWS Score: 100 54 mail.pakbusiness.com.pk 2->54 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 Multi AV Scanner detection for submitted file 2->64 66 6 other signatures 2->66 8 Lmnfh.exe 16 6 2->8         started        13 PDF.exe 14 3 2->13         started        15 PDF.exe 3 2->15         started        signatures3 process4 dnsIp5 56 cdn.discordapp.com 162.159.129.233, 443, 49765, 49780 CLOUDFLARENETUS United States 8->56 44 C:\Users\user\AppData\Roaming\Adobe\PDF.exe, PE32 8->44 dropped 46 C:\Users\user\AppData\Local\...\Lmnfh.exe.log, ASCII 8->46 dropped 76 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->76 78 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->78 80 Drops executable to a common third party application directory 8->80 82 Injects a PE file into a foreign processes 8->82 17 Lmnfh.exe 4 8->17         started        22 cmd.exe 1 8->22         started        58 162.159.135.233, 443, 49779 CLOUDFLARENETUS United States 13->58 84 Multi AV Scanner detection for dropped file 13->84 24 cmd.exe 13->24         started        26 PDF.exe 13->26         started        28 cmd.exe 15->28         started        file6 signatures7 process8 dnsIp9 48 mail.pakbusiness.com.pk 192.185.242.38, 49781, 49784, 587 UNIFIEDLAYER-AS-1US United States 17->48 50 x1.i.lencr.org 17->50 52 windowsupdatebg.s.llnwi.net 17->52 42 C:\Windows\System32\drivers\etc\hosts, ASCII 17->42 dropped 68 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->68 70 Tries to steal Mail credentials (via file / registry access) 17->70 72 Tries to harvest and steal ftp login credentials 17->72 74 2 other signatures 17->74 30 conhost.exe 22->30         started        32 timeout.exe 1 22->32         started        34 conhost.exe 24->34         started        36 timeout.exe 24->36         started        38 conhost.exe 28->38         started        40 timeout.exe 28->40         started        file10 signatures11 process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3757e17c90a0533f757b3ab31ae4886f55a34f3af775df5eb5e14982bb7dfcfd/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-03-16 09:13:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
23 of 27 (85.19%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=g5l6c7equbjt65l3hkzrvzein5k2gtz265256xvv4feyfo357t6q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
13687a295bb273d7d9f1c2eea25ce5ae3766b53f1192fb77a7db931e40e21c7b
AgentTesla
700a6ba703505b60689b1e935be88efc68ec5a00cddfa9044f571c9c7285d2c2
AgentTesla
8cb84526f67ca8bb0454e0cbdd81d265a70fc90edbcf97aec591d9e340dca013
AgentTesla
937e8cf5c406f171696985b30f88d3e91f1d6c69e7489e2e4ea2609c641f7bd9
AgentTesla
abd985aa1bfe39c848147583e821f9a2b0c806db69900e96850a7a9d70dbb75d
AgentTesla
b097632bd99f8ed079b4c9a709b00b67048950a1bee7f39434f4d52d2b8f9131
AgentTesla
b4929f7fb874ed756d9a535f255eb29057f5f8bc80ca34471cc3681a20282ec9
AgentTesla
e4b8b65d748dfb2be2021309f39211105841bfeb9d453e5bd7013aa57cf81a8c
AgentTesla
f6e4842040712cdd0f767cd5a2a5be80c0928872f2399a671f66ad544b37fa5d
AgentTesla
+ 15'426 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
collection persistence spyware stealer
Link:
https://tria.ge/reports/220316-n2axsadcf6/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
Unpacked files
SH256 hash:
3757e17c90a0533f757b3ab31ae4886f55a34f3af775df5eb5e14982bb7dfcfd
MD5 hash:
7e1cb553519f23b3e61ed341f1890763
SHA1 hash:
10e36f4053b749a884af17e3d48fad1b9f417ed1
Link:
https://www.unpac.me/results/65fdffba-5492-4b4a-9215-3fe3cca19296/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/3757e17c90a0/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/3757e17c90a0533f757b3ab31ae4886f55a34f3af775df5eb5e14982bb7dfcfd

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:INDICATOR_SUSPICIOUS_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_Discord_Attachments_URL
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a PE file that contains an Discord Attachments URL. This is often used by Malware to download further payloads
Rule name:SUSP_PE_Discord_Attachment_Oct21_1
Create hunting rule
Author:Florian Roth
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/251392/

Comments