MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f8b47e5a49657285c7c00609858a8416a3f14010fb76661ec52b76a8c092c690. 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: 10


Intelligence 10 IOCs YARA 6 File information Comments

SHA256 hash: f8b47e5a49657285c7c00609858a8416a3f14010fb76661ec52b76a8c092c690
SHA3-384 hash: f87a1fc1c8575257e019b44bc499431731a03a3ff91b6bbed34cdf6b8cdf2233cc47d2535f15c4e1347996c17658e78b
SHA1 hash: 37f610bac00d35fe0313b0ff9f6ab02e1148285d
MD5 hash: 8a2126f9a808e26a346b98559cd52afe
humanhash: princess-muppet-winter-don
File name:Packing list& Invoice-2020.3. incorrect,xlsx.scr
Download: download sample
Signature AgentTesla
File size:3'905'024 bytes
First seen:2021-05-10 07:09:10 UTC
Last seen:2021-05-10 11:15:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 1536:GpYqplIplIpZlXq9Uh/2iEOe4Roh1sIsEsbpnRPsrMm2qsc/7nsTsMf0wsIs1se7:F
Threatray 4 similar samples on MalwareBazaar
TLSH DA062B9C387F51184B67FA979BE92E00810F295A507EF7A8FA20132D0762FC1D45BB6D
Reporter abuse_ch
Tags:AgentTesla scr

Intelligence


File Origin
# of uploads :
4
# of downloads :
102
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
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:
Unknown
Detection:
malicious
Classification:
evad
Score:
100 / 100
Signature
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
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
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 video device information (via WMI, Win32_VideoController, 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)
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 412043 Sample: Packing list& Invoice-2020.... Startdate: 12/05/2021 Architecture: WINDOWS Score: 100 42 Multi AV Scanner detection for submitted file 2->42 44 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 2->44 46 Machine Learning detection for sample 2->46 48 7 other signatures 2->48 7 Packing list& Invoice-2020.3. incorrect,xlsx.exe 3 6 2->7         started        12 svchost.exe 2->12         started        14 svchost.exe 2->14         started        16 3 other processes 2->16 process3 dnsIp4 40 192.168.2.1 unknown unknown 7->40 36 C:\Windows\Resources\Themes\...\svchost.exe, PE32 7->36 dropped 38 C:\Windows\...\svchost.exe:Zone.Identifier, ASCII 7->38 dropped 50 Creates an autostart registry key pointing to binary in C:\Windows 7->50 52 Adds a directory exclusion to Windows Defender 7->52 54 Hides threads from debuggers 7->54 18 cmd.exe 7->18         started        20 powershell.exe 7->20         started        22 powershell.exe 7->22         started        24 23 other processes 7->24 56 Multi AV Scanner detection for dropped file 12->56 58 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 12->58 60 Machine Learning detection for dropped file 12->60 62 Tries to delay execution (extensive OutputDebugStringW loop) 12->62 file5 signatures6 process7 process8 26 conhost.exe 18->26         started        28 timeout.exe 18->28         started        30 conhost.exe 20->30         started        32 conhost.exe 22->32         started        34 conhost.exe 24->34         started       
Threat name:
ByteCode-MSIL.Trojan.Generic
Status:
Suspicious
First seen:
2021-05-09 21:48:06 UTC
AV detection:
8 of 46 (17.39%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla evasion keylogger persistence spyware stealer trojan
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
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
Maps connected drives based on registry
Checks BIOS information in registry
Uses the VBS compiler for execution
Windows security modification
Looks for VMWare Tools registry key
AgentTesla Payload
Looks for VirtualBox Guest Additions in registry
AgentTesla
Windows security bypass
Unpacked files
SH256 hash:
d891c33752d0fb5385e1e54891e74de73f36f4c60341a775d19cec463aecf2fe
MD5 hash:
14f910efb842bbe4e0270ba2789045b7
SHA1 hash:
a0772b330980a94d58f00fc6a7edf8ea5339754e
SH256 hash:
2a1bf52ef9902700a3301f498a00ae592f1f2a22ccfea17e83ea5eff61f0ebe7
MD5 hash:
d10179c155fc47373a67b4c9d5251967
SHA1 hash:
6bb2b7db973cc48bce7d7a5f1687d1f1a9bded3b
SH256 hash:
f8b47e5a49657285c7c00609858a8416a3f14010fb76661ec52b76a8c092c690
MD5 hash:
8a2126f9a808e26a346b98559cd52afe
SHA1 hash:
37f610bac00d35fe0313b0ff9f6ab02e1148285d
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:ach_AgentTesla_20200929
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_agent_tesla_v1
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.

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