MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ffb373d0eef96dcc2ba1fb4b9fcc512537570fe4aee4d55fefb54103fe7351cc. 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: 18


Intelligence 18 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ffb373d0eef96dcc2ba1fb4b9fcc512537570fe4aee4d55fefb54103fe7351cc
SHA3-384 hash: 34416f143b96c577a7813f05a020ab52eda74beb1f13052c5c8fc996dd449294bf8e14aedb293735a5be6de94bd03377
SHA1 hash: 89223950f14c4316d2a94a9c7970f9b421127a50
MD5 hash: 8630197732ad0d9fd701272b1bc0b261
humanhash: happy-butter-football-arizona
File name:LATE INVOICES CFA0583574 - CFA0585218 - CFA0585654 - 3ALY002488 - CFA0585941.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:647'168 bytes
First seen:2023-11-21 09:22:17 UTC
Last seen:2023-11-21 11:15:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 12288:vVNuPeKNHf20/17iECQA+YEhGlfd1JPdJhrypuJj9Q1+2s1neyGBX:dYFfNiEbkbPdLWuJBQbeBG
TLSH T1F4D42341F56FAF59C5BE1BF4A87B26104330E9EB11B2FB0CAE9E15D86A217440E15B33
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter adrian__luca
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
314
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
LATE INVOICES CFA0583574 - CFA0585218 - CFA0585654 - 3ALY002488 - CFA0585941.exe
Verdict:
Malicious activity
Analysis date:
2023-11-21 09:34:41 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/f0ebcb43-ef7a-4320-9139-6a353a46bbd6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/459476/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
91%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/655c770115cd82a1c998be0a/reports/14e392db-c825-486d-ab64-768df9bbb458/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/ffb373d0eef96dcc2ba1fb4b9fcc512537570fe4aee4d55fefb54103fe7351cc
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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/93461156-e5fb-491c-91a0-f6d7a5c9a669
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1345697
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Contains functionality to log keystrokes (.Net Source)
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
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Scheduled temp file as task from temp location
Tries to harvest and steal browser information (history, passwords, etc)
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
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1345697 Sample: LATE_INVOICES_CFA0583574_-_... Startdate: 21/11/2023 Architecture: WINDOWS Score: 100 57 us2.smtp.mailhostbox.com 2->57 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 Multi AV Scanner detection for dropped file 2->65 67 10 other signatures 2->67 8 LATE_INVOICES_CFA0583574_-_CFA0585218_-_CFA0585654_-_3ALY002488_-_CFA0585941.exe 7 2->8         started        12 GCsYIooPh.exe 5 2->12         started        14 Micosoft Excel 2023.exe 2->14         started        16 Micosoft Excel 2023.exe 2->16         started        signatures3 process4 file5 53 C:\Users\user\AppData\RoamingbehaviorgraphCsYIooPh.exe, PE32 8->53 dropped 55 C:\Users\user\AppData\Local\...\tmpD554.tmp, XML 8->55 dropped 77 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->77 79 Uses schtasks.exe or at.exe to add and modify task schedules 8->79 81 Adds a directory exclusion to Windows Defender 8->81 18 LATE_INVOICES_CFA0583574_-_CFA0585218_-_CFA0585654_-_3ALY002488_-_CFA0585941.exe 1 5 8->18         started        23 powershell.exe 23 8->23         started        25 schtasks.exe 1 8->25         started        83 Multi AV Scanner detection for dropped file 12->83 85 Injects a PE file into a foreign processes 12->85 27 GCsYIooPh.exe 4 12->27         started        37 3 other processes 12->37 29 Micosoft Excel 2023.exe 14->29         started        31 schtasks.exe 14->31         started        33 Micosoft Excel 2023.exe 16->33         started        35 schtasks.exe 16->35         started        signatures6 process7 dnsIp8 59 us2.smtp.mailhostbox.com 208.91.199.224, 49710, 49713, 49715 PUBLIC-DOMAIN-REGISTRYUS United States 18->59 49 C:\Users\user\...\Micosoft Excel 2023.exe, PE32 18->49 dropped 51 Micosoft Excel 2023.exe:Zone.Identifier, ASCII 18->51 dropped 69 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->69 71 Tries to steal Mail credentials (via file / registry access) 18->71 73 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->73 39 conhost.exe 23->39         started        41 conhost.exe 25->41         started        75 Tries to harvest and steal browser information (history, passwords, etc) 29->75 43 conhost.exe 31->43         started        45 conhost.exe 35->45         started        47 conhost.exe 37->47         started        file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ffb373d0eef96dcc2ba1fb4b9fcc512537570fe4aee4d55fefb54103fe7351cc
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ffb373d0eef96dcc2ba1fb4b9fcc512537570fe4aee4d55fefb54103fe7351cc/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-11-15 11:11:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
20 of 23 (86.96%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=76zxhuho7fw4yk5b7nfz7tcreu3vod7ev3snkx7pwvaqh7ttkhga._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/231121-lcgypade59/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/6eec61a7-6f23-414a-bcff-c208e5be60e9/
SH256 hash:
76482f1dc9b0639dd6b2d762e09101875e207e8c60e146a43ca182a4c13d6afa
MD5 hash:
9561bc00330bfa400784c1b3b2075d0b
SHA1 hash:
b98f0014f428085dea5ea44108d64d9119e3d698
Link:
https://www.unpac.me/results/6eec61a7-6f23-414a-bcff-c208e5be60e9/
SH256 hash:
f4d0fb1d22b791f8bf1a3fcd9110e51b5685b1b0a5b4b2c97e0f1520ed3f0a8b
MD5 hash:
8f6c9ac8d90bada84ee738ed8da90aa0
SHA1 hash:
5818ae4ff3c6f7833825f73fa96e0d2223d2555e
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
Link:
https://www.unpac.me/results/6eec61a7-6f23-414a-bcff-c208e5be60e9/
Parent samples :
dbe5ea4fdeec96fa6dbd4e378dd10f4c6b89a921adaff45fe358f3dbb55da1fb
ffb373d0eef96dcc2ba1fb4b9fcc512537570fe4aee4d55fefb54103fe7351cc
SH256 hash:
1a2b893d2ad3a59da6a7abb6a92cfce627036a4435aa52d2fe20ffe05c2e21f4
MD5 hash:
2c78e25a32668e976ca4af4228656758
SHA1 hash:
1f56a1bfdd4f9b644b7ce16a5535a7f9a9d7a347
Link:
https://www.unpac.me/results/6eec61a7-6f23-414a-bcff-c208e5be60e9/
SH256 hash:
ffb373d0eef96dcc2ba1fb4b9fcc512537570fe4aee4d55fefb54103fe7351cc
MD5 hash:
8630197732ad0d9fd701272b1bc0b261
SHA1 hash:
89223950f14c4316d2a94a9c7970f9b421127a50
Link:
https://www.unpac.me/results/6eec61a7-6f23-414a-bcff-c208e5be60e9/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ffb373d0eef9/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/ffb373d0eef96dcc2ba1fb4b9fcc512537570fe4aee4d55fefb54103fe7351cc

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_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
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 ffb373d0eef96dcc2ba1fb4b9fcc512537570fe4aee4d55fefb54103fe7351cc

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/459476/

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