MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6c5bb0bbd4973666ee779f809dc98c94cfd6eb2650df78feb00c5e391bb4c49f. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6c5bb0bbd4973666ee779f809dc98c94cfd6eb2650df78feb00c5e391bb4c49f
SHA3-384 hash: b1d218cc98f5f0d1b39949e1a3ebab9ca7c568502883a8d46246e93f1ee3f2ee6b09cb59eb94cd90b9b32a074f4f04e1
SHA1 hash: f3092f6e4e9fcb1f1c3c5973ede7f8b092b4c11a
MD5 hash: 7b0fe84aaba35933bcf6cee15245c993
humanhash: dakota-skylark-texas-dakota
File name:Overdue invoice.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:692'224 bytes
First seen:2021-12-22 08:16:53 UTC
Last seen:2021-12-22 14:36:01 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 12288:lHcbrvGwpit9xeSfeTcGydVpnPHUcjB+V/5uu9kra702rI+ppppppppppppppppv:Sbrvr89MSk5yx0cjBI/kdPjUPp
TLSH T186E49C85E99096A4FC3AE7705D72DCB10722BDF8E874E49CE8C93D273BBB6920511463
File icon (PE):PE icon
dhash icon d4d4d4d4d4d4c4c4 (15 x AgentTesla, 10 x Formbook, 1 x SnakeKeylogger)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
174
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Overdue invoice.exe
Verdict:
Malicious activity
Analysis date:
2021-12-22 08:18:42 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7dee1986-a15a-4d19-9bad-17fc40f47c94

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/215748/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.22823.17504.11071.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Searching for the window
Creating a window
DNS request
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed strictor
Link:
https://www.filescan.io/uploads/61c2df004ab5c44cbf4c7845/reports/c62c14b6-a531-4563-812c-80cfccbaf6c4/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.
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fedfc3a7-40c9-4263-80cc-233904ec646c
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/911406
Signature
.NET source code contains very large array initializations
.NET source code contains very large strings
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Sigma detected: Suspicius Add Task From User AppData Temp
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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: 543884 Sample: Overdue invoice.exe Startdate: 22/12/2021 Architecture: WINDOWS Score: 100 62 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->62 64 Found malware configuration 2->64 66 Multi AV Scanner detection for dropped file 2->66 68 13 other signatures 2->68 7 Overdue invoice.exe 6 2->7         started        10 tKZVPq.exe 5 2->10         started        13 tKZVPq.exe 4 2->13         started        process3 file4 44 C:\Users\user\AppData\...\HSSOVHEhcOZ.exe, PE32 7->44 dropped 46 C:\Users\user\AppData\Local\...\tmp6E89.tmp, XML 7->46 dropped 48 C:\Users\user\...\Overdue invoice.exe.log, ASCII 7->48 dropped 15 Overdue invoice.exe 2 5 7->15         started        20 schtasks.exe 1 7->20         started        22 Overdue invoice.exe 7->22         started        70 Multi AV Scanner detection for dropped file 10->70 72 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 10->72 74 Machine Learning detection for dropped file 10->74 76 2 other signatures 10->76 24 schtasks.exe 10->24         started        26 tKZVPq.exe 10->26         started        28 schtasks.exe 13->28         started        30 tKZVPq.exe 13->30         started        signatures5 process6 dnsIp7 50 mail.jingtai.com.vn 15->50 52 pro13.emailserver.vn 103.15.48.233, 49797, 587 ODS-AS-VNOnlinedataservicesVN Viet Nam 15->52 38 C:\Users\user\AppData\Roaming\...\tKZVPq.exe, PE32 15->38 dropped 40 C:\Windows\System32\drivers\etc\hosts, ASCII 15->40 dropped 42 C:\Users\user\...\tKZVPq.exe:Zone.Identifier, ASCII 15->42 dropped 54 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->54 56 Tries to steal Mail credentials (via file / registry access) 15->56 58 Tries to harvest and steal ftp login credentials 15->58 60 3 other signatures 15->60 32 conhost.exe 20->32         started        34 conhost.exe 24->34         started        36 conhost.exe 28->36         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6c5bb0bbd4973666ee779f809dc98c94cfd6eb2650df78feb00c5e391bb4c49f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-22 02:12:59 UTC
File Type:
PE (.Net Exe)
Extracted files:
43
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nrn3bo6us43gn3txt6aj3smmsth5n2zgkdpxr7vqbrpdsg5uyspq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/211222-j6pvaafba8/
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
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
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
4c4085ee997bdec3c04c1e2be962ec4fcda942cd47b36430fe40405912920473
MD5 hash:
35ca27d06dd099891bf2313c74075ffa
SHA1 hash:
c8e4fa78a9c8ef38568b317129da139e62704f08
Link:
https://www.unpac.me/results/d8b43999-8988-4953-8c85-b414431bf4d8/
SH256 hash:
601552aa94c0ee96484d453012e94506b9ceca2367818db01b9b11557d1c030e
MD5 hash:
dbfaa92663039c0c95f19a131208170a
SHA1 hash:
c1b806b540f1d5b8fa39fe0b41f12e3e1ce876d8
Link:
https://www.unpac.me/results/d8b43999-8988-4953-8c85-b414431bf4d8/
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/d8b43999-8988-4953-8c85-b414431bf4d8/
SH256 hash:
6c5bb0bbd4973666ee779f809dc98c94cfd6eb2650df78feb00c5e391bb4c49f
MD5 hash:
7b0fe84aaba35933bcf6cee15245c993
SHA1 hash:
f3092f6e4e9fcb1f1c3c5973ede7f8b092b4c11a
Link:
https://www.unpac.me/results/d8b43999-8988-4953-8c85-b414431bf4d8/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/6c5bb0bbd497/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/6c5bb0bbd4973666ee779f809dc98c94cfd6eb2650df78feb00c5e391bb4c49f

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:pe_imphash
Create hunting rule
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.

Malspam

AgentTesla

Executable exe 6c5bb0bbd4973666ee779f809dc98c94cfd6eb2650df78feb00c5e391bb4c49f

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/215748/

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