Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d6a6aef18fe34a8…

MALICIOUS

PDF

73.7 KB Created: 2021-03-08 18:57:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 2ae251a00344fdaf97580dbc212c32cc SHA-1: 53a6467d085b35e056eaff70000256cb03d4d808 SHA-256: 8d6a6aef18fe34a822d54ae754278d8dd4bb1f9d199545350aadcda5cbac3255
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1105 Ingress Tool Transfer

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'fokemale.ru', which is likely a malicious domain used to host a secondary payload or phishing page. The document body, though heavily obfuscated, contains references to 'wkhtmltopdf' and a date, suggesting it might be a generated document used as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://fokemale.ru/wix?keyword=ging+cee+ng+uchicago PDF link annotation
    • https://goradexajegofip.weebly.com/uploads/1/3/0/8/130874122/7033836.pdfIn PDF document text
    • http://siwosupegejolop.medianewsonline.com/firehouse_subs_turkey_cranberry_nutrition.pdfIn PDF document text
    • http://figimumagoko.mygamesonline.org/jimukexalitukawupozulol.pdfIn PDF document text
    • http://kopuvimu.scienceontheweb.net/sapemoxisigupo.pdfIn PDF document text
    • https://sutovuwoti.weebly.com/uploads/1/3/0/9/130968995/f95abf3c.pdfIn PDF document text
    • http://lezigovedavide.getenjoyment.net/vejisodapofegevirix.pdfIn PDF document text
    • https://zemutixo.weebly.com/uploads/1/3/4/8/134865820/249d1d2fca4e23a.pdfIn PDF document text
    • https://jenisevemib.weebly.com/uploads/1/3/1/0/131070602/lufab.pdfIn PDF document text
    • https://cdn.sqhk.co/kuwusetoteji/hLiePdX/womibesiduwupi.pdfIn PDF document text
    • https://cdn.sqhk.co/piredonina/czZgeWe/hitman_holla_battle_rap_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/sisadenev/qjtzkge/assistive_touch_iphone_11_ausschalten.pdfIn PDF document text
    • http://madawuboso.sportsontheweb.net/kijaruf.pdfIn PDF document text
    • https://xubivolimoba.weebly.com/uploads/1/3/0/7/130740090/zerol.pdfIn PDF document text
    • https://bovatukal.weebly.com/uploads/1/3/0/7/130739183/a4e2634.pdfIn PDF document text
    • https://vesitunerenos.weebly.com/uploads/1/3/5/3/135338192/44c57.pdfIn PDF document text
    • http://supariwepexafat.mywebcommunity.org/the_golden_goblet_online_free.pdfIn PDF document text
    • http://bamefidev.mygamesonline.org/2015651769.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/navoburarovada/76963214088.pdfIn PDF document text
    • https://s3.amazonaws.com/xapijifas/anatomi_cacing_tanah.pdfIn PDF document text
    • http://torejejowomu.myartsonline.com/49115886713.pdfIn PDF document text
    • https://s3.amazonaws.com/xomepixo/89685023188.pdfIn PDF document text
    • https://s3.amazonaws.com/nademopor/android_version_of_apple_store.pdfIn PDF document text
    • https://s3.amazonaws.com/nafoxuda/bohemian_rhapsody_sheet_music_for_trumpet.pdfIn PDF document text
    • http://wejajesenopezoj.onlinewebshop.net/72785432463.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e49d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE49D 4788 bytes
SHA-256: 6340589e69ecb9b51d7a7d43e06844f62cc98c4044c48f53ae6bdb45ab4a3fd5
font_01_sfnt_off0000f4f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4F3 10632 bytes
SHA-256: e6920cd18f1ee9a786a40965136cf7d58f6d1e4ecc0f9ba091a2a65240e57be7

Open this report in the interactive analyzer, or submit your own file for analysis.