MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ab973b31d4c8051aa1d10711842c9059e3fbb50e7e7cf41112936f9bb03c3725. 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: ab973b31d4c8051aa1d10711842c9059e3fbb50e7e7cf41112936f9bb03c3725
SHA3-384 hash: c6f1df0338fee74ccc4120375d300be1ac086dcbdaac14a9db5225887af542c82e5d3ef9b53ba19a36b5f69aecb2a5b7
SHA1 hash: 6ac3a6c8ccb455efa4be669e27f50248232e22d6
MD5 hash: 538d8112c752dff07311db30f6e9657b
humanhash: double-april-fillet-venus
File name:proforma invoice.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:921'088 bytes
First seen:2021-04-20 06:01:25 UTC
Last seen:2021-04-20 19:49:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:BLnczRRRRR+FpK3lXOJU+mUEQqfP2nECJo8WGoQ3eO7SzAz5BvwL8uZ7K4/Vrl3+:JIRRRRR+uNz9qo8ffvwLxpieQGM
Threatray 4'054 similar samples on MalwareBazaar
TLSH 98155B9D725075DEDA6BD2758AA89C64EB903C76434B410BE02331BE997CC87CF160FA
Reporter cocaman
Tags:AgentTesla exe INVOICE

Intelligence

File Origin
# of uploads :
7
# of downloads :
104
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
proforma invoice.exe
Verdict:
No threats detected
Analysis date:
2021-04-20 06:15:20 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/390eb5d2-fbf6-4f81-bbbc-9e368c436620

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.671.1761.21387.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/688293
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
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: 393092 Sample: proforma invoice.exe Startdate: 20/04/2021 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 5 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 us2.smtp.mailhostbox.com 208.91.199.224, 49748, 587 PUBLIC-DOMAIN-REGISTRYUS United States 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 3 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:
n/a
Link:
https://mwdb.cert.pl/sample/ab973b31d4c8051aa1d10711842c9059e3fbb50e7e7cf41112936f9bb03c3725/
Gathering data
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=voltwmouzacrviora4iyileqlhr7xniopz6pieissnxzxmb4g4sq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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d431fcb3052e7867b0510ee6180e1287508bf0413e10427ebb6abdbfbb7dad6f
AgentTesla
+ 4'044 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/210420-f2gc9nm4h6/
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
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ab973b31d4c8051aa1d10711842c9059e3fbb50e7e7cf41112936f9bb03c3725

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:ach_AgentTesla_20200929
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:win_agent_tesla_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information

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

Malspam

AgentTesla

zip 6bb5aa536658e9c20b86ab4fd812b5378ef38b650a1e4e6aa56b4ed39cf09d6d

AgentTesla

Executable exe ab973b31d4c8051aa1d10711842c9059e3fbb50e7e7cf41112936f9bb03c3725

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 6bb5aa536658e9c20b86ab4fd812b5378ef38b650a1e4e6aa56b4ed39cf09d6d

Comments