MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f43d59da075e1622bf064523e664a8c2157b9a8fce346b32178a111d391bde2f. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f43d59da075e1622bf064523e664a8c2157b9a8fce346b32178a111d391bde2f
SHA3-384 hash: 5d5c6aeb6ae349dd9be707b82f095ace24f4c8b289405e4fe4d35fcb24cdb1a68135bb53ae4623ed3f7791ae2d5a5622
SHA1 hash: 82668060c4b67d9d6cfc9bd8932d5e9cbe1e3586
MD5 hash: 7cbde0d0040da559868b4ae53e00d745
humanhash: coffee-earth-table-fanta
File name:proforma invoice.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:689'664 bytes
First seen:2021-05-07 13:46:49 UTC
Last seen:2021-05-11 14:04:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:n62EFHDR6RFaQT6geqjVmT6S8K0yfWIuyy856v9oaxIdLMXuPI:d60RcFgzSf0eWdyy8509oNdLWaI
Threatray 4'593 similar samples on MalwareBazaar
TLSH 85E4125933D8872AC1CE98BDECE0478B82FADA4A3153EB01D7D854768E573F45E2019B
Reporter cocaman
Tags:AgentTesla exe INVOICE

Intelligence

File Origin
# of uploads :
3
# of downloads :
130
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/152734/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Trojan.PackedNET.624-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/719598
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
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 sample
Modifies the hosts 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 access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 408724 Sample: proforma invoice.exe Startdate: 09/05/2021 Architecture: WINDOWS Score: 100 47 Found malware configuration 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 Yara detected AgentTesla 2->51 53 6 other signatures 2->53 6 proforma invoice.exe 3 2->6         started        10 AvrzbM.exe 2 2->10         started        12 AvrzbM.exe 1 2->12         started        process3 file4 27 C:\Users\user\...\proforma invoice.exe.log, ASCII 6->27 dropped 55 Writes to foreign memory regions 6->55 57 Allocates memory in foreign processes 6->57 59 Injects a PE file into a foreign processes 6->59 14 RegSvcs.exe 2 4 6->14         started        19 RegSvcs.exe 6->19         started        21 RegSvcs.exe 6->21         started        23 conhost.exe 10->23         started        25 conhost.exe 12->25         started        signatures5 process6 dnsIp7 33 mail.rakub.org.bd 203.188.252.35, 49720, 587 ISN-AS-APISNInternetServiceProviderBD Bangladesh 14->33 29 C:\Users\user\AppData\Roaming\...\AvrzbM.exe, PE32 14->29 dropped 31 C:\Windows\System32\drivers\etc\hosts, ASCII 14->31 dropped 35 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->35 37 Tries to steal Mail credentials (via file access) 14->37 39 Tries to harvest and steal ftp login credentials 14->39 45 4 other signatures 14->45 41 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 19->41 43 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 19->43 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f43d59da075e1622bf064523e664a8c2157b9a8fce346b32178a111d391bde2f/
Threat name:
ByteCode-MSIL.Infostealer.Coins
Create hunting rule
Status:
Malicious
First seen:
2021-05-07 12:20:45 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
16 of 29 (55.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6q6vtwqhlylcfpygiur6mzfiyikxxgupzy2gwmqxriir2oi33yxq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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b39de16dd4f9cca5342dcd36875ceb246874f486698e34fea88e095d8596b368
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f111c1af009f5f5b71e9551ccaf2676df2f0df3bb308f230425ba399c80b9e30
AgentTesla
+ 4'583 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210507-8zd9483wz6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
bdf79e57b5574f9bafb56f6d0592f5ee429df7eb0ad536fbdb4f2956aae36f87
MD5 hash:
826b29e2a141b055a5491c9d7dc6eea7
SHA1 hash:
af4201362b8603bf7e4b6e2ead1cfb610dd7c0a9
Link:
https://www.unpac.me/results/03eac3f9-a890-4821-a969-0e2ee5dd6bd3/
SH256 hash:
f43d59da075e1622bf064523e664a8c2157b9a8fce346b32178a111d391bde2f
MD5 hash:
7cbde0d0040da559868b4ae53e00d745
SHA1 hash:
82668060c4b67d9d6cfc9bd8932d5e9cbe1e3586
Link:
https://www.unpac.me/results/03eac3f9-a890-4821-a969-0e2ee5dd6bd3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f43d59da075e1622bf064523e664a8c2157b9a8fce346b32178a111d391bde2f

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: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

zip da4eb3aebcc821fa3535c72d4333f9ba760e6be28a6e3bcd9248650a6bd528ce

AgentTesla

Executable exe f43d59da075e1622bf064523e664a8c2157b9a8fce346b32178a111d391bde2f

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 da4eb3aebcc821fa3535c72d4333f9ba760e6be28a6e3bcd9248650a6bd528ce
Cape
Cape
https://www.capesandbox.com/analysis/152734/

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