MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a77c3003795e0256c94937337cec5be20d883849bd77f940956607cdf719e637. 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: 12


Intelligence 12 IOCs YARA 18 File information Comments
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SHA256 hash: a77c3003795e0256c94937337cec5be20d883849bd77f940956607cdf719e637
SHA3-384 hash: 2a5f8627e54bacebbb8edc344d2b6b2c1e3c1b12307f5f0f59cf9299719454246237b8ab73503f0ec0b28201054c4325
SHA1 hash: 96352cf9d7669fd1a25bb3b80507dfe686c12fac
MD5 hash: 24d26b7fadaa483ef7f53e22226abac3
humanhash: nine-pasta-may-apart
File name:RobloxPlayerLauncher.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:5'602'304 bytes
First seen:2023-10-04 18:55:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 49152:W45js74yh1zJ/IG1USMnT3Z0C+LhaKRGNQc172jHf4PWI9APrq3O91HLTqgy9hnS:
Threatray 32 similar samples on MalwareBazaar
TLSH T1A24669212CFF108DB3B3AB6C5BD8B8BF995AF263261E70B9107157464722D81CD92B35
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 7cf094ccced2c0c0 (1 x AgentTesla, 1 x MarsStealer)
Reporter stealerkiller
Tags:AgentTesla exe


Avatar
stealerkiller
url : hxxps://cdn1.frocdn.ch/iOjhwitnnXwIZZ5.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
478
Origin country :
GB GB
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2424.20083.9323.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Sending an HTTP GET request
Creating a window
Searching for synchronization primitives
Verdict:
No Threat
Threat level:
  2.5/10
Confidence:
88%
Tags:
anti-debug control crypto explorer greyware lolbin rundll32 shell32
Link:
https://www.filescan.io/uploads/651db545be42b2ac8e5ad0de/reports/0be42908-6790-4863-a171-a9718d3091de/overview
Verdict:
Malicious
Labled as:
MSIL.Krypt.Generic
Link:
https://www.hybrid-analysis.com/sample/a77c3003795e0256c94937337cec5be20d883849bd77f940956607cdf719e637
Result
Verdict:
MALICIOUS
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/3f950bc7-1882-4b28-8ad6-76f0b4814270
Result
Threat name:
Agent Tesla, AgentTesla
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1319695
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Contains functionality to capture screen (.Net source)
Creates an undocumented autostart registry key
Detected Agent Tesla keylogger
Drops executable to a common third party application directory
Drops PE files to the user root directory
Found evasive API chain checking for user administrative privileges
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
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 Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Writes many files with high entropy
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1319695 Sample: RobloxPlayerLauncher.exe Startdate: 04/10/2023 Architecture: WINDOWS Score: 100 129 Malicious sample detected (through community Yara rule) 2->129 131 Antivirus / Scanner detection for submitted sample 2->131 133 Multi AV Scanner detection for submitted file 2->133 135 9 other signatures 2->135 11 RobloxPlayerLauncher.exe 6 2->11         started        15 MicrosoftEdgeUpdate.exe 2->15         started        18 svchost.exe 2->18         started        20 4 other processes 2->20 process3 dnsIp4 93 C:\Users\user\AppData\...\CGRC9JUK.exe, PE32 11->93 dropped 95 C:\Users\user\AppData\Local\...\6TEWKWPO.exe, PE32 11->95 dropped 151 Drops executable to a common third party application directory 11->151 22 CGRC9JUK.exe 1 36 11->22         started        26 6TEWKWPO.exe 6 11->26         started        28 conhost.exe 11->28         started        121 20.114.58.89 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 15->121 30 MicrosoftEdgeUpdate.exe 15->30         started        32 MicrosoftEdgeUpdate.exe 15->32         started        123 20.99.133.109 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 18->123 125 20.99.184.37 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 18->125 127 127.0.0.1 unknown unknown 20->127 file5 signatures6 process7 dnsIp8 113 128.116.102.4 ROBLOX-PRODUCTIONUS United States 22->113 115 128.116.102.8 ROBLOX-PRODUCTIONUS United States 22->115 117 3 other IPs or domains 22->117 87 C:\Users\user\...\RobloxPlayerLauncher.exe, PE32 22->87 dropped 89 C:\Users\user\...\RobloxPlayerLauncher[1].exe, PE32 22->89 dropped 34 RobloxPlayerLauncher.exe 22->34         started        39 CGRC9JUK.exe 22->39         started        91 C:\ProgramData\65TIMT14.exe, PE32 26->91 dropped 41 65TIMT14.exe 16 16 26->41         started        43 conhost.exe 26->43         started        file9 process10 dnsIp11 105 23.199.47.143 AKAMAI-ASUS United States 34->105 77 version-9fd31cae22...translations[1].zip, Zip 34->77 dropped 79 version-9fd31cae22...-content-sky[1].zip, Zip 34->79 dropped 81 version-9fd31cae22...53-RobloxApp[1].zip, Zip 34->81 dropped 85 46 other files (36 malicious) 34->85 dropped 139 Tries to harvest and steal browser information (history, passwords, etc) 34->139 141 Writes many files with high entropy 34->141 45 MicrosoftEdgeWebview2Setup.exe 34->45         started        48 RobloxPlayerLauncher.exe 34->48         started        107 192.168.2.1 unknown unknown 39->107 109 132.226.8.169 UTMEMUS United States 41->109 111 104.21.88.34 CLOUDFLARENETUS United States 41->111 83 C:\Users\user\AppData\...\tmpG754.tmp (copy), PE32 41->83 dropped 143 Detected Agent Tesla keylogger 41->143 145 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 41->145 147 Tries to steal Instant Messenger accounts or passwords 41->147 149 4 other signatures 41->149 file12 signatures13 process14 file15 97 C:\...\MicrosoftEdgeUpdate.exe, PE32 45->97 dropped 99 C:\Program Files (x86)\...\psuser_arm64.dll, PE32+ 45->99 dropped 101 C:\Program Files (x86)\...\psuser_64.dll, PE32+ 45->101 dropped 103 97 other files (none is malicious) 45->103 dropped 50 MicrosoftEdgeUpdate.exe 45->50         started        process16 file17 69 C:\...\MicrosoftEdgeUpdate.exe, PE32 50->69 dropped 71 C:\...\psuser_arm64.dll (copy), PE32+ 50->71 dropped 73 C:\...\psuser_64.dll (copy), PE32+ 50->73 dropped 75 98 other files (none is malicious) 50->75 dropped 137 Creates an undocumented autostart registry key 50->137 54 MicrosoftEdgeUpdate.exe 50->54         started        56 MicrosoftEdgeUpdate.exe 50->56         started        59 MicrosoftEdgeUpdate.exe 50->59         started        61 MicrosoftEdgeUpdate.exe 50->61         started        signatures18 process19 dnsIp20 63 MicrosoftEdgeUpdateComRegisterShell64.exe 54->63         started        65 MicrosoftEdgeUpdateComRegisterShell64.exe 54->65         started        67 MicrosoftEdgeUpdateComRegisterShell64.exe 54->67         started        119 13.107.42.16 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 56->119 process21
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a77c3003795e0256c94937337cec5be20d883849bd77f940956607cdf719e637/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2023-10-04 18:56:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
16 of 22 (72.73%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u56daa3zlybfnskjg4zxz3c34igyqocjxv37sqevmyd435yz4y3q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 22 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
collection discovery evasion persistence spyware stealer trojan
Link:
https://tria.ge/reports/231004-xlc7msgb74/
Behaviour
Modifies Internet Explorer settings
Modifies data under HKEY_USERS
Modifies registry class
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Drops file in Program Files directory
Checks system information in the registry
Accesses Microsoft Outlook profiles
Checks installed software on the system
Checks whether UAC is enabled
Looks up external IP address via web service
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Registers COM server for autorun
Downloads MZ/PE file
Sets file execution options in registry
Unpacked files
SH256 hash:
d3d87b01298526a2209ba150d138062a39ca9431e1ebd1a4fc73080aed895aa1
MD5 hash:
1a1b608d199f55b7e521754f2d405125
SHA1 hash:
5599a93daad25e7c7a20d4639008cfa5e729614f
Detections:
win_agent_tesla_g1
Create hunting rule
Link:
https://www.unpac.me/results/6bcac530-3702-4ffd-a386-dbe51c1abda0/
SH256 hash:
d55800a825792f55999abdad199dfa54f3184417215a298910f2c12cd9cc31ee
MD5 hash:
bfb160a89f4a607a60464631ed3ed9fd
SHA1 hash:
1c981ef3eea8548a30e8d7bf8d0d61f9224288dd
Link:
https://www.unpac.me/results/6bcac530-3702-4ffd-a386-dbe51c1abda0/
SH256 hash:
2ab35270fa8fa27addeb9e93bfcb60a9947365cbe04d975f0474d054b1739e49
MD5 hash:
272da1e329c98705ecaed23b0c1fad96
SHA1 hash:
eec791d22eea19ddf50a7acf71ec80a0fe437e43
Link:
https://www.unpac.me/results/6bcac530-3702-4ffd-a386-dbe51c1abda0/
SH256 hash:
a7d7f71dd797380ee843dd5ccd9d73b898b9d8eaf25dfa8dc7be66e2c36f83a8
MD5 hash:
252e94ebd8a71a1de442d8eec3fa8b82
SHA1 hash:
8c9526db517d300cec89fc9faf8d22b7f69df31e
Link:
https://www.unpac.me/results/6bcac530-3702-4ffd-a386-dbe51c1abda0/
SH256 hash:
a77c3003795e0256c94937337cec5be20d883849bd77f940956607cdf719e637
MD5 hash:
24d26b7fadaa483ef7f53e22226abac3
SHA1 hash:
96352cf9d7669fd1a25bb3b80507dfe686c12fac
Link:
https://www.unpac.me/results/6bcac530-3702-4ffd-a386-dbe51c1abda0/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a77c3003795e/report/overview.html
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/a77c3003795e0256c94937337cec5be20d883849bd77f940956607cdf719e637

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
Create hunting rule
Author:kevoreilly
Description:AgentTesla Payload
Rule name:AgentTeslaV2
Create hunting rule
Author:ditekshen
Description:AgenetTesla Type 2 Keylogger payload
Rule name:AgentTesla_mod_tough_mem
Create hunting rule
Author:James_inthe_box
Reference:https://app.any.run/tasks/3b5d409c-978b-4a95-a5f1-399f0216873d/
Rule name:agent_tesla
Create hunting rule
Author:Stormshield
Description:Detecting HTML strings used by Agent Tesla malware
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_GENInfoStealer
Create hunting rule
Author:ditekSHen
Description:Detects executables containing common artifcats observed in infostealers
Rule name:MALWARE_Win_AgentTeslaV2
Create hunting rule
Author:ditekSHen
Description:AgenetTesla Type 2 Keylogger payload
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETDLLMicrosoft
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Comments