MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99769d0977440ba9b1d1a8c12794e05f3c716753d856e999289e115fe91e466f. 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: 7


Intelligence 7 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 99769d0977440ba9b1d1a8c12794e05f3c716753d856e999289e115fe91e466f
SHA3-384 hash: 3112b86b5f21350b570b9dd21817f9d2e56f3c7e725ccf684c07c1d4aebf12abc5cd1787ab8caee2015bedfced2e4f75
SHA1 hash: cd4759f94f08e31bb730de96c2a7933d91714571
MD5 hash: e1157cf512d4192eb2808be948d7e0ec
humanhash: vegan-angel-may-chicken
File name:RFQ CSDOK202040890.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:35'760 bytes
First seen:2021-02-22 07:25:52 UTC
Last seen:2021-02-22 08:41:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 768:mkfwHH4mJBbwYTqE13Q/JsraBp48LVO9zzw4oYs2D7mh6:LfhlYTr18ermpG9zkTYN7
Threatray 2'751 similar samples on MalwareBazaar
TLSH B4F23A10BBC37927ED2F383A20B16E0C23B66BE57D46CA2B1F1C51B512172CB5D1EA59
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: server.sardsgroup.com
Sending IP: 50.7.154.162
From: OLA KHALIL <ola@chesles.com>
Subject: Request for Quotation - Supply & Delivery of Items
Attachment: RFQ CSDOK202040890.rar (contains "RFQ CSDOK202040890.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
114
Origin country :
n/a
Vendor Threat Intelligence
Detection:
DLAgent06
Create hunting rule
Link:
https://www.capesandbox.com/analysis/118236/
Detection(s):
SecuriteInfo.com.Mal.Generic-S.12368.1531.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
DNS request
Sending an HTTP GET request
Sending a UDP request
Result
Verdict:
SUSPICIOUS
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.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/613726
Signature
Adds a directory exclusion to Windows Defender
Binary contains a suspicious time stamp
Creates an autostart registry key pointing to binary in C:\Windows
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
Hides threads from debuggers
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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: Suspicious Svchost Process
Sigma detected: System File Execution Location Anomaly
System process connects to network (likely due to code injection or exploit)
Tries to delay execution (extensive OutputDebugStringW loop)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 355871 Sample: RFQ CSDOK202040890.exe Startdate: 22/02/2021 Architecture: WINDOWS Score: 100 67 Yara detected AgentTesla 2->67 69 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 2->69 71 Machine Learning detection for sample 2->71 73 7 other signatures 2->73 8 explorer.exe 2->8         started        10 RFQ CSDOK202040890.exe 17 6 2->10         started        15 explorer.exe 2->15         started        17 6 other processes 2->17 process3 dnsIp4 19 svchost.exe 8->19         started        63 coroloboxorozor.com 172.67.172.17, 49727, 49743, 49745 CLOUDFLARENETUS United States 10->63 55 C:\Windows\Cursors\...\svchost.exe, PE32 10->55 dropped 57 C:\Windows\...\svchost.exe:Zone.Identifier, ASCII 10->57 dropped 85 Creates an autostart registry key pointing to binary in C:\Windows 10->85 87 Adds a directory exclusion to Windows Defender 10->87 89 Hides threads from debuggers 10->89 91 Injects a PE file into a foreign processes 10->91 23 cmd.exe 1 10->23         started        25 powershell.exe 26 10->25         started        27 RFQ CSDOK202040890.exe 2 10->27         started        29 WerFault.exe 10->29         started        93 Drops executables to the windows directory (C:\Windows) and starts them 15->93 31 svchost.exe 15->31         started        65 192.168.2.1 unknown unknown 17->65 33 WerFault.exe 17->33         started        file5 signatures6 process7 dnsIp8 59 coroloboxorozor.com 19->59 75 Machine Learning detection for dropped file 19->75 77 Writes to foreign memory regions 19->77 79 Adds a directory exclusion to Windows Defender 19->79 83 3 other signatures 19->83 35 cmd.exe 19->35         started        37 powershell.exe 19->37         started        39 svchost.exe 19->39         started        47 2 other processes 19->47 41 conhost.exe 23->41         started        43 timeout.exe 1 23->43         started        45 conhost.exe 25->45         started        61 coroloboxorozor.com 31->61 81 System process connects to network (likely due to code injection or exploit) 31->81 signatures9 process10 process11 49 conhost.exe 35->49         started        51 timeout.exe 35->51         started        53 conhost.exe 37->53         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/99769d0977440ba9b1d1a8c12794e05f3c716753d856e999289e115fe91e466f/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tf3j2clxiqf2tmorvdaspfhal46hcz2t3blotgjityiv72i6izxq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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be356a2bfc51e0fd0dbe3be84cc8760afd92743e86c723a7d97d13ea985f3bf5
AgentTesla
+ 2'741 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210222-6d5q1rhkqe/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
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
Windows security modification
AgentTesla Payload
AgentTesla
Windows security bypass
Unpacked files
SH256 hash:
99769d0977440ba9b1d1a8c12794e05f3c716753d856e999289e115fe91e466f
MD5 hash:
e1157cf512d4192eb2808be948d7e0ec
SHA1 hash:
cd4759f94f08e31bb730de96c2a7933d91714571
Link:
https://www.unpac.me/results/17c5683c-73f9-4c37-8026-c4ec346e2f14/
Please note that we are no longer able to provide a coverage score for Virus Total.

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Malspam

AgentTesla

rar 7fa4250eb5e3a7d1a40afd487df3e51a328ab4b8f3a7ed7fc878e7051bb5b823

AgentTesla

Executable exe 99769d0977440ba9b1d1a8c12794e05f3c716753d856e999289e115fe91e466f

(this sample)

  
Dropped by
MD5 ffb4b964e87a47562c80baf61e7e2869
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/118236/
  
Dropped by
SHA256 7fa4250eb5e3a7d1a40afd487df3e51a328ab4b8f3a7ed7fc878e7051bb5b823

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