MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d9c6ae4ceb7ede24afeb4c598e3fef327002b6583272a4fa07ba868578d3d62a. 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



AsyncRAT


Vendor detections: 13


Intelligence 13 IOCs YARA File information Comments

SHA256 hash: d9c6ae4ceb7ede24afeb4c598e3fef327002b6583272a4fa07ba868578d3d62a
SHA3-384 hash: 70d9f6ae8cf7b24465d92ddd2df08b666962fbc0e0ca04a7a1b334a4909c6f1b895d25c3bb2e304fd7a304853ede0c40
SHA1 hash: 472afded700a957d3a862cc49c0a7519092d00fb
MD5 hash: 5ffe37b62296142c38cd3660a5c15351
humanhash: montana-eleven-mango-utah
File name:177.xlsx
Download: download sample
Signature AsyncRAT
File size:181'176 bytes
First seen:2022-07-05 12:16:55 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/encrypted
ssdeep 3072:OIfoBodw1snec1VmDlntFr9jPtPJg71RpmTcNtNVCpx0POm:1ABowqdaDlFjJwMcVVz
TLSH T1B70402757754484EEA2D9C3089F9F3A04F4CDF0A296B5651F288312FDD3918AA528FEC
Reporter abuse_ch
Tags:AsyncRAT CVE-2018-0798 VelvetSweatshop xlsx

Office OLE Information


This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE dump
Detection: VelvetSweatshop

MalwareBazaar was able to identify 6 sections in this file using oledump:

Section IDSection sizeSection name
164 bytesDataSpaces/DataSpaceInfo/StrongEncryptionDataSpace
2112 bytesDataSpaces/DataSpaceMap
3208 bytesDataSpaces/TransformInfo/StrongEncryptionTransform/Primary
476 bytesDataSpaces/Version
5174520 bytesEncryptedPackage
6224 bytesEncryptionInfo

Intelligence


File Origin
# of uploads :
1
# of downloads :
245
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Malicious
File type:
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Has a screenshot:
False
Contains macros:
False
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Searching for synchronization primitives
Launching a process
Creating a file
Сreating synchronization primitives
Creating a process with a hidden window
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
OOXML Excel File with Embedding Objects in Encrypted Excel File
Document image
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm embedequation exploit packed shellcode VelvetSweatshop
Label:
Malicious
Suspicious Score:
9.9/10
Score Malicious:
99%
Score Benign:
0%
Result
Verdict:
MALICIOUS
Details
Document With No Content
Document contains little or no semantic information.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl
Score:
64 / 100
Signature
Antivirus detection for URL or domain
Office equation editor establishes network connection
Shellcode detected
Sigma detected: EQNEDT32.EXE connecting to internet
Behaviour
Behavior Graph:
Threat name:
Document-OLE.Exploit.CVE-2018-0798
Status:
Malicious
First seen:
2022-07-05 12:17:36 UTC
File Type:
Document
Extracted files:
55
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat botnet:default rat suricata
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in System32 directory
Suspicious use of SetThreadContext
Loads dropped DLL
Uses the VBS compiler for execution
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
Async RAT payload
AsyncRat
suricata: ET MALWARE Generic AsyncRAT Style SSL Cert
suricata: ET MALWARE MSIL/GenKryptik.FQRH Download Request
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
Malware Config
C2 Extraction:
37.0.14.204:2022
37.0.14.204:2019
37.0.14.204:5631
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Malspam

AsyncRAT

Excel file xlsx d9c6ae4ceb7ede24afeb4c598e3fef327002b6583272a4fa07ba868578d3d62a

(this sample)

  
Delivery method
Distributed via e-mail attachment

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