MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6a5a84e5afd0a9d8fc62cacc992dc78ffc70fa1c72adfd2b6b7b415966a476cf. 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: 6a5a84e5afd0a9d8fc62cacc992dc78ffc70fa1c72adfd2b6b7b415966a476cf
SHA3-384 hash: 9f8b0d150d72b2336865904f127f2699d0cbd7060ed58403b817d578b1349e10806a4f45b8b27054597bcb5a1ef80971
SHA1 hash: b1fbe95260da4602dead96458297c85cad72b4b8
MD5 hash: ced74caeef36885026771e11a5aed446
humanhash: hotel-indigo-india-kitten
File name:PROFORMA INVOICE.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:954'368 bytes
First seen:2020-08-30 11:40:00 UTC
Last seen:2020-08-30 12:48:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:XHmp+2Fj4DPahcGU2IQyG1yANL8JxYR0rMiu7UUEd0iUyIImsxVradpDkTy8mPRk:3RPahcGti0L8JxYR0wvA9Zpj7ra7YT
Threatray 10'642 similar samples on MalwareBazaar
TLSH 66157C4D3314B39EC807F976D9541CA8EAB075A7DB2BD283DC0711A9A90D59FEF180E2
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: outbound-gw.openxchange.ahost.me
Sending IP: 94.136.40.163
From: danny@gms.scot
Reply-To: danny@gms.scot
Subject: PROFORMA INVOICE
Attachment: PROFORMA INVOICE.zip (contains "PROFORMA INVOICE.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
104
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/53117/
Detection(s):
SecuriteInfo.com.CIL.HeapOverride.Heur.6333.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Using the Windows Management Instrumentation requests
Creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/454614
Signature
Contains functionality to register a low level keyboard hook
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
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
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 access)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 279679 Sample: PROFORMA INVOICE.exe Startdate: 30/08/2020 Architecture: WINDOWS Score: 100 37 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->37 39 Found malware configuration 2->39 41 Multi AV Scanner detection for submitted file 2->41 43 8 other signatures 2->43 6 ImIlErN.exe 3 2->6         started        9 PROFORMA INVOICE.exe 3 2->9         started        12 ImIlErN.exe 2 2->12         started        process3 file4 45 Multi AV Scanner detection for dropped file 6->45 47 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 6->47 49 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->49 53 3 other signatures 6->53 14 ImIlErN.exe 2 6->14         started        27 C:\Users\user\...\PROFORMA INVOICE.exe.log, ASCII 9->27 dropped 51 Injects a PE file into a foreign processes 9->51 18 PROFORMA INVOICE.exe 2 5 9->18         started        21 ImIlErN.exe 12->21         started        signatures5 process6 dnsIp7 29 smtp.dedhivala.com 14->29 55 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->55 57 Tries to steal Mail credentials (via file access) 14->57 59 Tries to harvest and steal ftp login credentials 14->59 61 Tries to harvest and steal browser information (history, passwords, etc) 14->61 31 smtp.dedhivala.com 18->31 33 us2.smtp.mailhostbox.com 208.91.199.223, 49734, 49752, 587 PUBLIC-DOMAIN-REGISTRYUS United States 18->33 35 192.168.2.1 unknown unknown 18->35 23 C:\Users\user\AppData\Roaming\...\ImIlErN.exe, PE32 18->23 dropped 25 C:\Users\user\...\ImIlErN.exe:Zone.Identifier, ASCII 18->25 dropped 63 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->63 65 Installs a global keyboard hook 18->65 file8 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6a5a84e5afd0a9d8fc62cacc992dc78ffc70fa1c72adfd2b6b7b415966a476cf/
Threat name:
ByteCode-MSIL.Trojan.TopAntiSpyware
Create hunting rule
Status:
Malicious
First seen:
2020-08-30 11:10:11 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=njnijznp2cu5r7dczlgjslohr76hb6q4okw72k3lpnavszveo3hq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
048674629add2dc37cc99ab62fef41b4198e89807627b23652916bcec41476c8
AgentTesla
44096c1493b07b6097e73099250d28081e1729e2181420e90b5913030c9687b2
AgentTesla
6b0f2c8d4a8c8883be658db9868b33db30eb73755e4688279c29599eb25c6099
AgentTesla
8d4c5f365504b7836678f742584f084f4ab5fd6ae8c4ea5370d6f2eb6b2c42fe
AgentTesla
b82d04c79bfd870dd7024db85a5c3c60827776af6bfd6b73306ceebf72150ba4
AgentTesla
bb87b42e953c6ef0db1288c7f65aacc88e0fa50e8a3162a07002642b304f2146
AgentTesla
c298da56eb8b11fd96859a1f9434d6c4e251f574e48a0cc2d066d442b9bf182e
AgentTesla
e212649c10ad952f2cd34debebdb80c6dfbeec214dbf352095eb65672ef2a1e9
AgentTesla
e6a9bbee2b3b1dec06bfcddd17711777d7d14171e9c180a7310f6bb9cabf6879
AgentTesla
f02fa74cf67fbbbff605bf316388b5c6d208efd33ccede87538938389be4de93
AgentTesla
+ 10'632 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer evasion spyware trojan family:agenttesla persistence
Link:
https://tria.ge/reports/200830-6zwnkb8ktn/
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
Maps connected drives based on registry
Checks BIOS information in registry
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Looks for VMWare Tools registry key
AgentTesla Payload
Looks for VirtualBox Guest Additions in registry
AgentTesla
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/6a5a84e5afd0a9d8fc62cacc992dc78ffc70fa1c72adfd2b6b7b415966a476cf

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

zip 636e7dcd5d9ca0a0d90ef3769c2cf3d9e40cb9bdf824f9a01972f7695c793232

AgentTesla

Executable exe 6a5a84e5afd0a9d8fc62cacc992dc78ffc70fa1c72adfd2b6b7b415966a476cf

(this sample)

  
Dropped by
MD5 effa7010867607d5054dd734a4b11c84
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 636e7dcd5d9ca0a0d90ef3769c2cf3d9e40cb9bdf824f9a01972f7695c793232
Cape
Cape
https://www.capesandbox.com/analysis/53117/

Comments