MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b6ba4103948b273cf686f35f58c8af4569c82ffcc9fbe21f30abb700ab692ca3. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b6ba4103948b273cf686f35f58c8af4569c82ffcc9fbe21f30abb700ab692ca3
SHA3-384 hash: d8c5e3fe26ed1c3089b8b8d487fc964d4bf4f478274d625ae076d4a348c983e7ca622f989da975efc67a9ee74ad67b7f
SHA1 hash: 2b10dd6bc033c9a249d3143aad2f268c56693e82
MD5 hash: 09e1b7df891556ca6f1b56b5b8a9be00
humanhash: florida-oranges-rugby-idaho
File name:New order.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:4'618'752 bytes
First seen:2021-05-10 08:23:41 UTC
Last seen:2021-05-10 10:59:44 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 1536:LoBa5OFr0sh01CdwhBRxcxfUeIo7q/snDB+w+ll4JgeOLlDf406ua58QCyssb+WZ:S
Threatray 8 similar samples on MalwareBazaar
TLSH 7B262E34C3700B5CB7E98964952DA56DAD63FCAF16379DC74250660B0F3AE068F42B3A
Reporter GovCERT_CH
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
4
# of downloads :
125
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/153860/
Detection(s):
Sanesecurity.Rogue.0hr.20210510-0807.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Using the Windows Management Instrumentation requests
Launching a process
Creating a process with a hidden window
Creating a file in the Windows subdirectories
Creating a window
Running batch commands
Adding an access-denied ACE
Launching the default Windows debugger (dwwin.exe)
Setting a single autorun event
Adding exclusions to Windows Defender
Unauthorized injection to a system process
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.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/777156
Signature
.NET source code contains very large array initializations
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
Changes security center settings (notifications, updates, antivirus, firewall)
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
Found malware configuration
Hides threads from debuggers
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped 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 delay execution (extensive OutputDebugStringW loop)
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: 409552 Sample: New order.exe Startdate: 10/05/2021 Architecture: WINDOWS Score: 100 53 mail.privateemail.com 2->53 59 Found malware configuration 2->59 61 Multi AV Scanner detection for submitted file 2->61 63 Yara detected AgentTesla 2->63 65 10 other signatures 2->65 8 New order.exe 3 6 2->8         started        12 svchost.exe 2->12         started        15 svchost.exe 2->15         started        17 11 other processes 2->17 signatures3 process4 dnsIp5 49 C:\Windows\Cursors\...\svchost.exe, PE32 8->49 dropped 51 C:\Windows\...\svchost.exe:Zone.Identifier, ASCII 8->51 dropped 71 Creates an autostart registry key pointing to binary in C:\Windows 8->71 73 Adds a directory exclusion to Windows Defender 8->73 75 Hides threads from debuggers 8->75 19 InstallUtil.exe 8->19         started        22 WerFault.exe 8->22         started        25 cmd.exe 8->25         started        33 3 other processes 8->33 55 192.168.2.1 unknown unknown 12->55 77 Multi AV Scanner detection for dropped file 12->77 79 Machine Learning detection for dropped file 12->79 81 Tries to delay execution (extensive OutputDebugStringW loop) 12->81 27 powershell.exe 12->27         started        83 Changes security center settings (notifications, updates, antivirus, firewall) 15->83 29 MpCmdRun.exe 15->29         started        57 127.0.0.1 unknown unknown 17->57 31 WerFault.exe 17->31         started        file6 signatures7 process8 file9 67 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 19->67 69 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 19->69 47 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 22->47 dropped 35 conhost.exe 25->35         started        37 timeout.exe 25->37         started        39 conhost.exe 29->39         started        41 conhost.exe 33->41         started        43 conhost.exe 33->43         started        45 conhost.exe 33->45         started        signatures10 process11
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b6ba4103948b273cf686f35f58c8af4569c82ffcc9fbe21f30abb700ab692ca3/
Threat name:
ByteCode-MSIL.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-05-10 07:49:03 UTC
AV detection:
14 of 46 (30.43%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=w25eca4urmttz5ug6npvrsfpivu4ql74zh56ehzqvo3qbk3jfsrq._file
Verdict:
unknown
Similar samples:
3ebf027f17e2ba9e5689a67df4f1375297e9f43d258ac0b781d6fb27305fd452
AgentTesla
765c74bca7263290a6c9018b1a90adaef95239b3fdcf45cb5e0d45bd70f03f72
AgentTesla
76fe551abdf8ee9d70991dc8de3a7dab5d1cb5605072f1d54f8b4ae4a6e03100
AgentTesla
7a11431e141079aabfbc23a56ab312d3094828c2eb0b1033bb17692054f70208
AgentTesla
e472de49ad18d1f76d03a278b13a43b0b8bc2145d9407f120aace6671ff9cd4b
AgentTesla
f273c9ca878fa221f33211fc6bcb019fa244c62dce485dfdc11df4770414e5ff
AgentTesla
f8b47e5a49657285c7c00609858a8416a3f14010fb76661ec52b76a8c092c690
AgentTesla
f981bf3b1d0388cd1c0e0638aefbcedbbebd9f8ff504c0832abb85032bc4ada6
AgentTesla
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210510-z6qr6bl7da/
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
Windows security modification
AgentTesla Payload
AgentTesla
Windows security bypass
Unpacked files
SH256 hash:
b791120c1bdc388b50c3973e62978238adc8faaf7d6e0255def6fbe80079ebe7
MD5 hash:
71ca6bcda05cc40e33dfdf60c74fd5b7
SHA1 hash:
c8537bcbb630eac761cf26376b95cd064831aeb2
Link:
https://www.unpac.me/results/588ab504-1589-43ac-a660-1a836157a3c0/
SH256 hash:
84d0c40bfb67fd5631642a575a4f51f53c2bb1ec8566e7fb1937b5e6e1118fd4
MD5 hash:
82c11b719aab33adc30111a46baade2a
SHA1 hash:
6f469b84b7b0ff522b6256f6278daf195cc0e333
Link:
https://www.unpac.me/results/588ab504-1589-43ac-a660-1a836157a3c0/
SH256 hash:
b6ba4103948b273cf686f35f58c8af4569c82ffcc9fbe21f30abb700ab692ca3
MD5 hash:
09e1b7df891556ca6f1b56b5b8a9be00
SHA1 hash:
2b10dd6bc033c9a249d3143aad2f268c56693e82
Link:
https://www.unpac.me/results/588ab504-1589-43ac-a660-1a836157a3c0/
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/b6ba4103948b273cf686f35f58c8af4569c82ffcc9fbe21f30abb700ab692ca3

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: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
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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

Executable exe b6ba4103948b273cf686f35f58c8af4569c82ffcc9fbe21f30abb700ab692ca3

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/153860/

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