MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5ef3c86e05749f489fa0e6ac47f42142b9215750f5764fe4d02bffde19b56f54. 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 4 File information Comments

SHA256 hash: 5ef3c86e05749f489fa0e6ac47f42142b9215750f5764fe4d02bffde19b56f54
SHA3-384 hash: 5053eeb837922139ee64862957bc69e4d4a57a3fdc305bd471c5839cda3c56ea557094eb7ff2ccb0c269fb08f4ffe2a0
SHA1 hash: 56afc1e47ebcca7a42ef9aff258bc273829068bf
MD5 hash: dddf96565a2934171b1479b96bc04cc6
humanhash: pasta-orange-quiet-fourteen
File name:0987500000000000000.exe
Download: download sample
Signature AgentTesla
File size:47'904 bytes
First seen:2021-03-31 22:21:03 UTC
Last seen:2021-03-31 23:03:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 768:gPlhNDfJrP4gYyApArbGflKGflvx/FIwJGun51WGflvx/FIwJGun2XozhAb:gPlhNTKgYv+hX1
Threatray 99 similar samples on MalwareBazaar
TLSH 2523CAE849A915F7ED6DF9349B81A00EA631EC3725048AAB51C782C3C5D2B933DD007F
Reporter GovCERT_CH
Tags:AgentTesla

Intelligence


File Origin
# of uploads :
2
# of downloads :
111
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
0987500000000000000.exe
Verdict:
Malicious activity
Analysis date:
2021-03-31 22:39:01 UTC
Tags:
rat agenttesla trojan

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending an HTTP GET request
Sending a UDP request
Creating a file
Moving a recently created file
Launching a process
Creating a process with a hidden window
Creating a file in the Windows subdirectories
Creating a window
Running batch commands
Unauthorized injection to a recently created process
Adding an access-denied ACE
Using the Windows Management Instrumentation requests
Setting a single autorun event
Adding exclusions to Windows Defender
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.
Gathering data
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
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
Found malware configuration
Hides threads from debuggers
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)
System process connects to network (likely due to code injection or exploit)
Tries to delay execution (extensive OutputDebugStringW loop)
Yara detected AgentTesla
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 379674 Sample: 0987500000000000000.exe Startdate: 01/04/2021 Architecture: WINDOWS Score: 100 46 Found malware configuration 2->46 48 Multi AV Scanner detection for submitted file 2->48 50 Yara detected AgentTesla 2->50 52 Drops executables to the windows directory (C:\Windows) and starts them 2->52 7 0987500000000000000.exe 18 11 2->7         started        12 svchost.exe 2->12         started        14 svchost.exe 2->14         started        16 5 other processes 2->16 process3 dnsIp4 44 asdcqwdwqx.gq 104.21.15.11, 49729, 49744, 49747 CLOUDFLARENETUS United States 7->44 38 C:\Windows\Resources\Themes\...\svchost.exe, PE32 7->38 dropped 40 C:\Windows\...\svchost.exe:Zone.Identifier, ASCII 7->40 dropped 42 C:\Users\user\AppData\...\gojk15im.newcfg, XML 7->42 dropped 54 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->54 56 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->56 58 Creates an autostart registry key pointing to binary in C:\Windows 7->58 64 4 other signatures 7->64 18 cmd.exe 7->18         started        20 powershell.exe 20 7->20         started        22 powershell.exe 20 7->22         started        26 3 other processes 7->26 60 System process connects to network (likely due to code injection or exploit) 12->60 62 Multi AV Scanner detection for dropped file 12->62 24 WerFault.exe 16->24         started        file5 signatures6 process7 process8 28 conhost.exe 18->28         started        30 timeout.exe 18->30         started        32 conhost.exe 20->32         started        34 conhost.exe 22->34         started        36 conhost.exe 26->36         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-03-31 15:30:06 UTC
AV detection:
20 of 29 (68.97%)
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
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
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:
5ef3c86e05749f489fa0e6ac47f42142b9215750f5764fe4d02bffde19b56f54
MD5 hash:
dddf96565a2934171b1479b96bc04cc6
SHA1 hash:
56afc1e47ebcca7a42ef9aff258bc273829068bf
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: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.

Malspam

AgentTesla

Executable exe 5ef3c86e05749f489fa0e6ac47f42142b9215750f5764fe4d02bffde19b56f54

(this sample)

  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment

Comments