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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6f56693b3154f9ef059aa6a5fd4e36ff78c1cd552c1f063726a0b7c307cd1ae6. 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


ZLoader


Vendor detections: 6


Maldoc score: 5


Intelligence 6 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6f56693b3154f9ef059aa6a5fd4e36ff78c1cd552c1f063726a0b7c307cd1ae6
SHA3-384 hash: 31252e251e55757d2b92a86787f57a1b73602d2437b625dbddf3a3b569d85dd5f6857562752c92653cf6bf9e32528ebb
SHA1 hash: b8c1e2930b7fdec0b3488b819bc6febcef9f699c
MD5 hash: 9aa155010abd7e00ce0d0a7f4b8b2ac4
humanhash: blue-undress-cat-shade
File name:case4110.xls
Download: download sample
Signature ZLoader
Create hunting rule
File size:44'544 bytes
First seen:2020-10-30 17:30:50 UTC
Last seen:2020-10-30 19:59:14 UTC
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 768:hi1Qk3hOdsylKlgxopeiBNhZFGzE+cL2kdAJHuEqLqgesRTyHC6dexD8WU:xk3hOdsylKlgxopeiBNhZFGzE+cL2kda
TLSH 4E1394F3EFA6ED65C9498379086B46506712EC81176B838B3385F7363FB1BB05902187
Reporter p5yb34m
Tags:xls ZLoader


Avatar
p5yb34m
.dll IOCs:
https://longisland.casa/wp-data.php
https://payment.fashiont/wp-data.php

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: 5
Application name is Microsoft Excel
Office document is in OLE format
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
AutoExecAuto_OpenRuns when the Excel Workbook is opened
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
SuspiciousBase64 StringsBase64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence

File Origin
# of uploads :
2
# of downloads :
122
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
TwinWave.EvilDoc.ZloaderUnicodeRoadToNoWhere.20200720.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.ZloaderUnicodeRoadToNoWherePartDuex.20200730.UNOFFICIAL
Create hunting rule

TwinwWave.EvilDoc.ZloaderBackToBasom.20201026.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file
Creating a process with a hidden window
Deleting a recently created file
Replacing files
Launching a process
Possible injection to a system process
Launching a process by exploiting the app vulnerability
Creating a process from a recently created file
Result
Threat name:
Hidden Macro 4.0
Create hunting rule
Detection:
malicious
Classification:
spre.expl.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/517237
Signature
Document exploit detected (creates forbidden files)
Document exploit detected (process start blacklist hit)
Found Excel 4.0 Macro with suspicious formulas
Injects code into the Windows Explorer (explorer.exe)
Microsoft Office drops suspicious files
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Potential malicious VBS script found (has network functionality)
Potential malicious VBS script found (suspicious strings)
System process connects to network (likely due to code injection or exploit)
Yara detected VBS Launcher Generic
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 307722 Sample: case4110.xls Startdate: 30/10/2020 Architecture: WINDOWS Score: 96 34 Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros) 2->34 36 Yara detected VBS Launcher Generic 2->36 38 Potential malicious VBS script found (suspicious strings) 2->38 40 2 other signatures 2->40 6 EXCEL.EXE 60 29 2->6         started        10 explorer.exe 2->10         started        12 explorer.exe 2 2->12         started        14 explorer.exe 2->14         started        process3 file4 30 C:\Users\Public\oSDknNIs.vbs, ASCII 6->30 dropped 42 Document exploit detected (creates forbidden files) 6->42 44 Injects code into the Windows Explorer (explorer.exe) 6->44 46 Document exploit detected (process start blacklist hit) 6->46 48 Microsoft Office drops suspicious files 6->48 16 explorer.exe 1 6->16         started        18 explorer.exe 1 6->18         started        20 explorer.exe 1 6->20         started        22 wscript.exe 4 1 10->22         started        26 wscript.exe 1 12->26         started        28 wscript.exe 14->28         started        signatures5 process6 dnsIp7 32 longisland.casa 104.27.135.179, 443, 49167 CLOUDFLARENETUS United States 22->32 50 System process connects to network (likely due to code injection or exploit) 22->50 signatures8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6f56693b3154f9ef059aa6a5fd4e36ff78c1cd552c1f063726a0b7c307cd1ae6/
Threat name:
Document-Word.Trojan.ZLoader
Create hunting rule
Status:
Malicious
First seen:
2020-10-30 17:32:05 UTC
AV detection:
18 of 29 (62.07%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=n5lgsozrkt466bm2u2s72trw754mdtkvfqpqmnzguc34gb6ndlta._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/201030-9llhl2gdwx/
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Checks processor information in registry
Suspicious use of FindShellTrayWindow
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
ZLoader
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/6f56693b3154f9ef059aa6a5fd4e36ff78c1cd552c1f063726a0b7c307cd1ae6

File information

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

Malspam

ZLoader

Excel file xls 6f56693b3154f9ef059aa6a5fd4e36ff78c1cd552c1f063726a0b7c307cd1ae6

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments