MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c7e40628fb6beb52d9d73a3b3afd1dca5d2335713593b698637e1a47b42bfc71. 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


TeslaCrypt


Vendor detections: 4


Intelligence 4 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c7e40628fb6beb52d9d73a3b3afd1dca5d2335713593b698637e1a47b42bfc71
SHA3-384 hash: 55e25d1f1fcf144abf75dd7013eed8bbbb97f89ebd52f62906b50463c55889ba2b28291e831ed547a2edb12acdd9307a
SHA1 hash: 9166aee4a6815e4f67e0ae43344d8ca144958d47
MD5 hash: 50fecec126570e4b8fcd531d6711879a
humanhash: ceiling-carbon-potato-gee
File name:invoice_NQ_Supply.xls
Download: download sample
Signature TeslaCrypt
Create hunting rule
File size:84'997 bytes
First seen:2021-01-22 07:53:10 UTC
Last seen:2021-01-22 10:13:12 UTC
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 1536:khibik1FQkj6fdEOy+6/jKcHmN3qJ8Xr8ul5sllm1MK:kgT7hSdZV6/jKcGAwr8ul5sllcMK
TLSH 0F830139D0619832F32338F9683D0A283B76BE236407AA2FD3247BF56531DC46D56D52
Reporter ffforward
Tags:password:2021 Ransomware teslacrypt xls

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 id
Application name is Microsoft Excel
Office document is in OLE format
Office document is in encrypted
OLE dump

MalwareBazaar was able to identify 3 sections in this file using oledump:

Section IDSection sizeSection name
14096 bytesDocumentSummaryInformation
24096 bytesSummaryInformation
374665 bytesWorkbook

Intelligence

File Origin
# of uploads :
2
# of downloads :
323
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
invoice_NQ_Supply.xls
Verdict:
No threats detected
Analysis date:
2021-01-22 07:55:48 UTC
Tags:
macros macros40
Link:
https://app.any.run/tasks/6d70ddfa-4533-4ad4-92fb-a4b264642d04

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Legit
File type:
application/vnd.ms-excel
Has a screenshot:
False
Contains macros:
False
Detection(s):
SecuriteInfo.com.ArtemisTrojan.19087.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Result
Verdict:
Suspicious
File Type:
Encrypted Office File
Link:
https://app.docguard.net/c7e40628fb6beb52d9d73a3b3afd1dca5d2335713593b698637e1a47b42bfc71/results/dashboard
Result
Verdict:
MALICIOUS
Details
Excel 4.0 Macro
Document contains Excel 4.0 macros (XLM). A valid, albeit dated feature, this document should be treated with suspicion.
Macro Execution Coercion
Detected a document that appears to social engineer the user into activating embedded logic.
Autostarting Excel Macro Sheet
Excel contains Macrosheet logic that will trigger automatically upon document open.
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c7e40628fb6beb52d9d73a3b3afd1dca5d2335713593b698637e1a47b42bfc71/
Result
Malware family:
n/a
Score:
  5/10
Tags:
ransomware
Link:
https://tria.ge/reports/210122-fmp48gzqsx/
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Checks processor information in registry
Enumerates physical storage devices
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
TeslaCrypt
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c7e40628fb6beb52d9d73a3b3afd1dca5d2335713593b698637e1a47b42bfc71

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:Email_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:IPPort_combo_mem
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:SharedStrings
Create hunting rule
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
Rule name:UAC_bypass_bin_mem
Create hunting rule
Author:James_inthe_box
Description:UAC bypass in files like avemaria

File information

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

Malspam

TeslaCrypt

Excel file xls c7e40628fb6beb52d9d73a3b3afd1dca5d2335713593b698637e1a47b42bfc71

(this sample)

  
Link
https://tria.ge/210122-f2e17cd27a
  
Delivery method
Distributed via e-mail attachment

Comments