MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8a5feb638a86eef3e912827fab799130ab284c72275c74bfd8449c10ab41ff2f. 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


NanoCore


Vendor detections: 8


Intelligence 8 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8a5feb638a86eef3e912827fab799130ab284c72275c74bfd8449c10ab41ff2f
SHA3-384 hash: 99a2b4b31b27c0cdc3eb9214402491bce7f4a64c524527d72ffaf3ca07420cc966f5345f4d7adc8a3764b1fe7f16fa7d
SHA1 hash: 67743bd9dbda9b1b7e2d426244815ac3fe1f6312
MD5 hash: 9181056e5e36815b4990f9a514ebee5f
humanhash: four-lake-august-colorado
File name:9181056e5e36815b4990f9a514ebee5f.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:40'584 bytes
First seen:2021-04-20 19:06:43 UTC
Last seen:2021-04-20 19:59:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 768:c042ILJgPnPipGUbijNEU4zhPnXkjXsWDhRuRO7PXcMkFhxv:fTGgPnPiW+X1kjcWD3secpV
Threatray 1'773 similar samples on MalwareBazaar
TLSH 5903D65694907758D9E709742D15EE383F28A7345980E10EF472A54CCF82BEA78FC8EE
Reporter abuse_ch
Tags:exe NanoCore RAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
86
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/140149/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.22527.18907.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Creating a file
Sending a UDP request
Running batch commands
Creating a process with a hidden window
Launching a process
Unauthorized injection to a recently created process
Adding an access-denied ACE
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Creating a file in the %temp% directory
Deleting a recently created file
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Sending a TCP request to an infection source
Sending an HTTP GET request to an infection source
Enabling autorun by creating a file
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.
Gathering data
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8a5feb638a86eef3e912827fab799130ab284c72275c74bfd8449c10ab41ff2f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-04-20 19:19:10 UTC
AV detection:
19 of 29 (65.52%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rjp6wy4kq3xph2isqj72w6mrgcvsqtdse5ohjp6yisobbk2b74xq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
0e206f1cf56315c1d4245ca01cac08ebab51decab43760d40e43a754d27da7b6
NanoCore
4d394ed696ee7fb3d53a7b064c53f2157b28d9f192de912fe311dd284845e4c9
NanoCore
52b5f2f95b1200b20a6f3adfcb93c6f87713155f83176dede353ee158c7c1b63
NanoCore
8551c05301b50a17763637cca7f291a6b779c82f16275f734e793f6a0e7e1a17
NanoCore
be86e9fd2d5913526b7cea3bec1ad8c84acea8cab73ea78414e6317565f3079b
NanoCore
cce5d9e4fd5ca9142510f3b21d0a73906171e90a815520985687dde13b6e643d
NanoCore
e11f59ce9dae9fcff7ff4c8d3d119dd663a1918d084f8cda7b30c474cd141642
NanoCore
e29e9d9beb5ce8187decf038cdc0b1d3102b4cfe43715a3b4f934098a943ebed
NanoCore
e9c3fc00ddb08ef196d05b56ce0c83c04381de42e8777e902e3e9c7afe4a9f11
NanoCore
f29b0b35d584de9410f3ffe75e8e4dbc6d90ecbc6f2c4d9382d8faf33e88d80b
NanoCore
+ 1'763 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/210420-vjdsnyjgmj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Nanocore
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8a5feb638a86eef3e912827fab799130ab284c72275c74bfd8449c10ab41ff2f

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.

Web download

NanoCore

Executable exe 8a5feb638a86eef3e912827fab799130ab284c72275c74bfd8449c10ab41ff2f

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/140149/
  
URLhaus
https://urlhaus.abuse.ch/url/1143865/
  
Delivery method
Distributed via web download

Comments