MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b96965d845c925b8dc0f3e4279ad4e571c1409891fee795bde704c5b1f063ce9. 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


Threat unknown


Vendor detections: 8


Maldoc score: 9


Intelligence 8 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b96965d845c925b8dc0f3e4279ad4e571c1409891fee795bde704c5b1f063ce9
SHA3-384 hash: de27eb816c1a2d158086db2a037791b3979871beee518e4bc2dc895e12ceab2de950102da64d360cad044722383541bb
SHA1 hash: 973f3a8ac29ad715ec649e9785738f60fe0a2d48
MD5 hash: 950855b20d993acd341e87feaa208037
humanhash: london-illinois-hawaii-lake
File name:950855b2_by_Libranalysis
Download: download sample
File size:38'400 bytes
First seen:2021-05-10 17:03:23 UTC
Last seen:2021-05-10 17:59:27 UTC
File type:Excel file xlsx
MIME type:application/vnd.ms-excel
ssdeep 768:Zck3hOdsylKlgryzc4bNhZFGzE+cL2knAJ0OiCgI02z7ypmT1OhdngKzZ3W8m:ek3hOdsylKlgryzc4bNhZFGzE+cL2kn8
TLSH 760383E2B282DC15DA4807764DEBD6E66772BC515F57838B3288F31E1FB1AC08A03617
Reporter Libranalysis


Avatar
Libranalysis
Uploaded as part of the sample sharing project

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
Maldoc score: 9
Application name is Microsoft Excel
Office document is in OLE format
Office document contains VBA Macros
OLE dump

MalwareBazaar was able to identify 15 sections in this file using oledump:

Section IDSection sizeSection name
1107 bytesCompObj
2244 bytesDocumentSummaryInformation
3200 bytesSummaryInformation
415373 bytesWorkbook
5503 bytes_VBA_PROJECT_CUR/PROJECT
6146 bytes_VBA_PROJECT_CUR/PROJECTwm
76341 bytes_VBA_PROJECT_CUR/VBA/S3V3OObrd1r_l4ml87ucTVAxbrq
8991 bytes_VBA_PROJECT_CUR/VBA/Sheet1
91258 bytes_VBA_PROJECT_CUR/VBA/ThisWorkbook
104460 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
111769 bytes_VBA_PROJECT_CUR/VBA/__SRP_0
12215 bytes_VBA_PROJECT_CUR/VBA/__SRP_1
13267 bytes_VBA_PROJECT_CUR/VBA/__SRP_2
14284 bytes_VBA_PROJECT_CUR/VBA/__SRP_3
15624 bytes_VBA_PROJECT_CUR/VBA/dir
OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

TypeKeywordDescription
AutoExecworkbook_openRuns when the Excel Workbook is opened
SuspiciousRunMay run an executable file or a system command
SuspiciousCreateObjectMay create an OLE object
SuspiciousChrMay attempt to obfuscate specific strings (use option --deobf to deobfuscate)
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence

File Origin
# of uploads :
2
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Legit
File type:
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Has a screenshot:
False
Contains macros:
True
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/154234/
Detection(s):
TwinWave.EvilDoc.WSHCROVARCHRMATHLONGGONE.20200524.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.CROOHSherrie.20210504.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Launching a process
DNS request
Sending an HTTP GET request
Running batch commands by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Link:
https://app.docguard.net/b96965d845c925b8dc0f3e4279ad4e571c1409891fee795bde704c5b1f063ce9/results/dashboard
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/b96965d845c925b8dc0f3e4279ad4e571c1409891fee795bde704c5b1f063ce9
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/779232
Signature
Document contains an embedded VBA macro which may execute processes
Document contains an embedded VBA with many randomly named variables
Document contains an embedded VBA with many string operations indicating source code obfuscation
Document exploit detected (process start blacklist hit)
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Obfuscated command line found
Sigma detected: Microsoft Office Product Spawning Windows Shell
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 411690 Sample: 950855b2_by_Libranalysis Startdate: 12/05/2021 Architecture: WINDOWS Score: 76 14 Multi AV Scanner detection for submitted file 2->14 16 Obfuscated command line found 2->16 18 Machine Learning detection for sample 2->18 20 5 other signatures 2->20 7 EXCEL.EXE 10 8 2->7         started        process3 signatures4 22 Obfuscated command line found 7->22 10 cmd.exe 7->10         started        process5 process6 12 msiexec.exe 10->12         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b96965d845c925b8dc0f3e4279ad4e571c1409891fee795bde704c5b1f063ce9/
Threat name:
Document-Word.Trojan.Valyria
Create hunting rule
Status:
Malicious
First seen:
2021-05-10 17:04:10 UTC
AV detection:
18 of 47 (38.30%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xfuwlwcfzes3rxaphzbhtlkok4obicmjd7xhsw66obgfwhyghtuq._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
macro xlm
Link:
https://tria.ge/reports/210510-a1ytmkhfxj/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Use of msiexec (install) with remote resource
Blocklisted process makes network request
Process spawned unexpected child process
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b96965d845c925b8dc0f3e4279ad4e571c1409891fee795bde704c5b1f063ce9

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.

Cape
Cape
https://www.capesandbox.com/analysis/154234/

Comments