MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 427498805b524585ca09714fcc10c348b9d05368d2af04971616d245473917cb. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 427498805b524585ca09714fcc10c348b9d05368d2af04971616d245473917cb
SHA3-384 hash: 42c75bd5d4a2ff2884b82b9ccf357023f319df2a0c39803b19813efa3d19da2e53e4c6175284e8396c226c59c0776cc6
SHA1 hash: 1aab95f3e5a3bfa71106fe4a4248b7ec7ff95aaf
MD5 hash: 11259eaaba9cc61caa66cd9851db2f8d
humanhash: uniform-oxygen-romeo-double
File name:Halkbank_Ekstre_20200225_085049_468059.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:118'784 bytes
First seen:2020-10-19 06:25:36 UTC
Last seen:2020-10-19 06:44:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'477 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 1536:HzyQRZCk/lECNW/43cEttSaMgbRSsGRTZdZOeFJHn88eN/dBSKBUsPuF86FB7+JG:HQZCNjcrg+dZOakuVFB7idhW
Threatray 617 similar samples on MalwareBazaar
TLSH 42C30709B3DC4D37F8BE963199F34A4047FA7B97BA31D53C4AC05A9C1892611BE133A6
Reporter abuse_ch
Tags:AgentTesla exe geo Halkbank TUR


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: sunucu.soholine.com
Sending IP: 77.223.142.192
From: HALKBANK.E-EKSTRE@halkbank.com.tr
Subject: T.HALK BANKASI A.S. 19.09.2020 Hesap Ekstresi
Attachment: Halkbank_Ekstre_20200225_085049_468059.r24 (contains "Halkbank_Ekstre_20200225_085049_468059.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
104
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Detection(s):
SecuriteInfo.com.Gen.NN.ZemsilF.34570.hm0@aq6lEebi.17426.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Launching a process
Creating a process with a hidden window
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Adding an access-denied ACE
Using the Windows Management Instrumentation requests
Sending a TCP request to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Adding exclusions to Windows Defender
Enabling autorun
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/494862
Signature
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Connects to a pastebin service (likely for C&C)
Creates an undocumented autostart registry key
Creates autostart registry keys with suspicious names
Creates multiple autostart registry keys
Drops PE files to the startup folder
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)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 299885 Sample: Halkbank_Ekstre_20200225_08... Startdate: 19/10/2020 Architecture: WINDOWS Score: 100 59 www.google.it 2->59 61 pastebin.com 2->61 63 hastebin.com 2->63 75 Yara detected AgentTesla 2->75 77 .NET source code references suspicious native API functions 2->77 79 Machine Learning detection for sample 2->79 81 4 other signatures 2->81 8 Halkbank_Ekstre_20200225_085049_468059.exe 24 6 2->8         started        13 Halkbank_Ekstre_20200225_085049_468059.exe 2->13         started        15 Halkbank_Ekstre_20200225_085049_468059.exe 2->15         started        17 Halkbank_Ekstre_20200225_085049_468059.exe 2->17         started        signatures3 process4 dnsIp5 65 www.google.it 172.217.168.67 GOOGLEUS United States 8->65 67 pastebin.com 104.23.99.190, 443, 49721, 49751 CLOUDFLARENETUS United States 8->67 73 2 other IPs or domains 8->73 55 Halkbank_Ekstre_20...5_085049_468059.exe, PE32 8->55 dropped 57 Halkbank_Ekstre_20...exe:Zone.Identifier, ASCII 8->57 dropped 83 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->83 85 Creates an undocumented autostart registry key 8->85 87 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->87 93 4 other signatures 8->93 19 powershell.exe 25 8->19         started        21 powershell.exe 24 8->21         started        23 powershell.exe 24 8->23         started        33 5 other processes 8->33 69 104.23.98.190, 443, 49743 CLOUDFLARENETUS United States 13->69 71 172.67.143.180, 443, 49736, 49750 CLOUDFLARENETUS United States 13->71 89 Adds a directory exclusion to Windows Defender 13->89 91 Hides threads from debuggers 13->91 25 timeout.exe 13->25         started        27 powershell.exe 13->27         started        35 2 other processes 13->35 29 timeout.exe 15->29         started        31 timeout.exe 17->31         started        file6 signatures7 process8 process9 37 conhost.exe 19->37         started        39 conhost.exe 21->39         started        41 conhost.exe 23->41         started        43 conhost.exe 25->43         started        45 conhost.exe 27->45         started        47 conhost.exe 29->47         started        49 conhost.exe 31->49         started        53 2 other processes 33->53 51 conhost.exe 35->51         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/427498805b524585ca09714fcc10c348b9d05368d2af04971616d245473917cb/
Threat name:
Win32.Trojan.GenMlwB
Create hunting rule
Status:
Malicious
First seen:
2020-10-19 01:04:45 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ij2jrac3kjcylsqjofh4yegdjc45au3i2kxqjfywc3jekrzzc7fq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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+ 607 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
persistence evasion trojan spyware keylogger stealer family:agenttesla
Link:
https://tria.ge/reports/201019-sa8rrprnwn/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Drops startup file
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
Modifies WinLogon for persistence
Modifies Windows Defender Real-time Protection settings
Windows security bypass
Turns off Windows Defender SpyNet reporting
Unpacked files
SH256 hash:
427498805b524585ca09714fcc10c348b9d05368d2af04971616d245473917cb
MD5 hash:
11259eaaba9cc61caa66cd9851db2f8d
SHA1 hash:
1aab95f3e5a3bfa71106fe4a4248b7ec7ff95aaf
Link:
https://www.unpac.me/results/bd8c50fa-a543-4039-abf4-1301ba628d04/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Dropper
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/427498805b524585ca09714fcc10c348b9d05368d2af04971616d245473917cb

File information

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

Malspam

AgentTesla

rar 14427679d8d1f6a0ee3cab071a1596f776fbe7155b3a08b61e65923e26ffd673

AgentTesla

Executable exe 427498805b524585ca09714fcc10c348b9d05368d2af04971616d245473917cb

(this sample)

  
Dropped by
MD5 2b129bdc3c4355f3d92a629e812b1480
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 14427679d8d1f6a0ee3cab071a1596f776fbe7155b3a08b61e65923e26ffd673
Cape
Cape
https://www.capesandbox.com/analysis/72715/

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