MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb8a9b5d2805d85958107ca28599e7650278a5573d2ea6f2b01565b22457c954. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cb8a9b5d2805d85958107ca28599e7650278a5573d2ea6f2b01565b22457c954
SHA3-384 hash: 9f316d7d881caeb61f925d654f0528095251ea7188b845738056b6ce7a037a5333f1a4b85c18433c372a69559ab64b0a
SHA1 hash: 27d4d0e795d669f6736f2d8beb2c74e26c526204
MD5 hash: 54fb67d140067de46a963078084b20f3
humanhash: comet-arizona-south-nineteen
File name:vbc.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'075'200 bytes
First seen:2022-03-24 13:48:09 UTC
Last seen:2022-03-24 15:54:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 24576:6TlRPFocbIU2RqngEtQrNPzp/bWxCWuYenf4IEjcISpQxrFV+mB:Al1FoEQqnJtwN7p/CdVvdjdzxrFV+m
Threatray 4'286 similar samples on MalwareBazaar
TLSH T11535238B734ACA22CD1F5B300E879E2043741ED69597DB4D3CCCA7EE13A67921A466D3
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
229
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
049ef7a9e70cc2006e0256de10c61f040ce2405f.xlsx
Verdict:
Malicious activity
Analysis date:
2022-03-24 12:20:05 UTC
Tags:
encrypted trojan opendir exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/c2da9cea-8577-4186-93cb-c0135b292387

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/257175/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1269.12879.4091.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Creating a file
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/623c76d4b94fb38cb4e2e2e4/reports/acb2ebf9-1cfc-4534-bd39-f8c0fc801cf5/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/001de322-2abe-4590-9ee5-e584235c7d0e
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/963797
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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)
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 596284 Sample: vbc.exe Startdate: 24/03/2022 Architecture: WINDOWS Score: 100 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for dropped file 2->43 45 11 other signatures 2->45 7 vbc.exe 7 2->7         started        process3 file4 25 C:\Users\user\AppData\...\pYvxuDatdDKN.exe, PE32 7->25 dropped 27 C:\Users\...\pYvxuDatdDKN.exe:Zone.Identifier, ASCII 7->27 dropped 29 C:\Users\user\AppData\Local\...\tmp8396.tmp, XML 7->29 dropped 31 C:\Users\user\AppData\Local\...\vbc.exe.log, ASCII 7->31 dropped 47 Uses schtasks.exe or at.exe to add and modify task schedules 7->47 49 Adds a directory exclusion to Windows Defender 7->49 11 RegSvcs.exe 2 7->11         started        15 RegSvcs.exe 7->15         started        17 powershell.exe 25 7->17         started        19 schtasks.exe 1 7->19         started        signatures5 process6 dnsIp7 33 tminox.com.ro 89.35.161.247, 49781, 587 LANSOFTLANSOFTNETWORKRO Romania 11->33 35 mail.tminox.com.ro 11->35 37 3 other IPs or domains 11->37 51 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->51 53 Tries to steal Mail credentials (via file / registry access) 11->53 55 Tries to harvest and steal ftp login credentials 11->55 57 Tries to harvest and steal browser information (history, passwords, etc) 11->57 59 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->59 61 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 15->61 21 conhost.exe 17->21         started        23 conhost.exe 19->23         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cb8a9b5d2805d85958107ca28599e7650278a5573d2ea6f2b01565b22457c954/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-03-24 13:46:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zofjwxjiaxmfswaqpsrilgphmubhrjkxhuxkn4vqcvs3ejcxzfka._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0e16551efbf1aacaf4bbc05653978d86979048f338f9fab4a123dd3831dcef4e
AgentTesla
5545c72bc7724d1274e3255b85b4ed0a58ff34c608d5ae8d4307a1eddfa2cae3
AgentTesla
6f3b47af872e2699147e7bb3b5ce9cbd70cb11703c7a5b0f2be10dd0294f4285
AgentTesla
7cd1bb647fff3c340e2eae0532318bde99947b6bc91e3fabe286bd3fb0a1658e
AgentTesla
c39e8fffd5f5efd185d1ae14eb36a546474f111cac02ecd46758ddcf586b8f63
AgentTesla
ddcb778598a4921123f8661e0671197438d10c909373a120143a97bbce04a73b
AgentTesla
f133bd95fedd4f9df5a28d3844771a82ebd6ff1a9959f98c1a9f2011b704f4fa
AgentTesla
+ 4'276 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/220324-q4pj3ahhc4/
Behaviour
Creates scheduled task(s)
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
Checks computer location settings
Uses the VBS compiler for execution
AgentTesla
Unpacked files
SH256 hash:
83428bdd942ae1a6a7af931a004a3684be1fc8fa3c4b6cbddc48dff01a017ada
MD5 hash:
d8ea4fdc7ccae4c8b62117ac3eef9de2
SHA1 hash:
ef24f0051eacc695d390e98776419830eac11849
Link:
https://www.unpac.me/results/22c1a034-0eae-4077-8c35-60ee926db5eb/
SH256 hash:
dc5c057b0ee1eb079cf189762aac69f0d86338ea18795dc4fbf7ed9b5a45c2eb
MD5 hash:
4103ed94f4747b30e166cf3c25416f47
SHA1 hash:
d553a67056e94f60d621ca42dcecd6d93f9ef1ad
Link:
https://www.unpac.me/results/22c1a034-0eae-4077-8c35-60ee926db5eb/
SH256 hash:
892123148ee4554cd97f5f807aa7daf05dc575a7398608b9f0918748e69bd943
MD5 hash:
c556ec665113dbb902ee753f32818e99
SHA1 hash:
2bfb6917eb57666da376de86e9657ee06aa3ae59
Link:
https://www.unpac.me/results/22c1a034-0eae-4077-8c35-60ee926db5eb/
SH256 hash:
602c375700111b26728952e650650df8ca4fb0cb04ea3228b99ba3b01a14f580
MD5 hash:
0918af809135d0f33a809046753a95e7
SHA1 hash:
2108d912f8007aef7f5ed3f6a813a0f69382246c
Link:
https://www.unpac.me/results/22c1a034-0eae-4077-8c35-60ee926db5eb/
SH256 hash:
cb8a9b5d2805d85958107ca28599e7650278a5573d2ea6f2b01565b22457c954
MD5 hash:
54fb67d140067de46a963078084b20f3
SHA1 hash:
27d4d0e795d669f6736f2d8beb2c74e26c526204
Link:
https://www.unpac.me/results/22c1a034-0eae-4077-8c35-60ee926db5eb/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/cb8a9b5d2805/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/cb8a9b5d2805d85958107ca28599e7650278a5573d2ea6f2b01565b22457c954

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:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/257175/
  
URLhaus
https://urlhaus.abuse.ch/url/2113912/

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