Malicious PDF — malware analysis report

Static analysis result for SHA-256 14619e9e33ee1d9f…

MALICIOUS

PDF

80.0 KB Created: 2020-11-17 19:41:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: e887948c5eb2d868349e468502b9263f SHA-1: c9be97bc23a6219f908184356f34b866449df15e SHA-256: 14619e9e33ee1d9fa2ff60fab9a1704c62685d440f1f728d5b01a73c26bfa25c
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains numerous embedded links, with a critical heuristic identifying it as a redirector to malicious infrastructure. The primary URL, 'https://traffine.ru/123?utm_term=arc+pro+launcher+apk', suggests a lure related to software downloads. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent. No scripts were extracted, but the extensive link farm points towards a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://traffine.ru/123?utm_term=arc+pro+launcher+apk In PDF document text
    • https://cdn-cms.f-static.net/uploads/4449599/normal_5fa780c285b81.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406787/normal_5f99f7f3ce815.pdfIn PDF document text
    • https://tenikekiso.weebly.com/uploads/1/3/0/7/130775729/xomepurapupuwume.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388612/normal_5f95b3d7e723d.pdfIn PDF document text
    • https://fiwadevu.weebly.com/uploads/1/3/4/5/134592392/zivovojer.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449768/normal_5fa3a447cb6b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379960/normal_5f94fb79f0e92.pdfIn PDF document text
    • https://jonomivebotuw.weebly.com/uploads/1/3/4/6/134683751/9ed7da6d826d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420907/normal_5fa83aae223a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368954/normal_5fb294c9bb2bc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cbfea2d-b781-4d61-9492-008d5b63f565/matchbox_yesteryear_price_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3d2e1e0-e7b0-4782-8f4c-afabb1a821e4/zikalunot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7894fb99-af64-4826-b7aa-123ae411c5f1/31448312594.pdfIn PDF document text
    • https://s3.amazonaws.com/xajowu/wii_sports_resort_island_flyover_secrets.pdfIn PDF document text
    • https://s3.amazonaws.com/viboxikuz/limits_to_infinity.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d2b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2B5 4896 bytes
SHA-256: bf8cc66ab53fdfc5cb8b247a089203f2e88476749e1feb7dc2f95a937abddd4e
font_01_sfnt_off0000e34e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE34E 4528 bytes
SHA-256: daa3ad90a6d7dc833d036ea6224fd543a140d02f4f9998d18badbd3f0a7080b7
font_02_sfnt_off0000f49c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF49C 11452 bytes
SHA-256: 680b9f2509fc9d6dc32706e717eade96c1938ae5257dd1327b86d23301e29659
font_03_sfnt_off00011bf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BF7 16396 bytes
SHA-256: 950b01346ace0fc5ca44ea95a3056312c6fbd0d6b340e51c9f8b464351a42943

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