Malicious PDF — malware analysis report

Static analysis result for SHA-256 63575e10457a39a6…

MALICIOUS

PDF

43.7 KB Created: 2020-08-12 22:54:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 29fc5c1267a41d9de01178445732162e SHA-1: 59ce5c2646c3b0fdb54cee43ef5490467aa69a19 SHA-256: 63575e10457a39a6e5c334e15204668bf2319611adf594e39746688848a8da93
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The document body itself is heavily obfuscated, but the presence of numerous links suggests an attempt to direct users to malicious websites, likely for phishing or malware distribution. No scripts were extracted, and the primary malicious behavior observed is the link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://ttraff.com/pify?keyword=descriptive+geometry+2+pdf In PDF document text
    • http://files.lampoonprops.com/uploads/1/3/0/7/130739222/db413929fd7.pdfIn PDF document text
    • http://files.flowersbyjennycrafter.com/uploads/1/3/0/7/130738821/4375307.pdfIn PDF document text
    • http://nixitep.thelovebible.org/uploads/1/3/2/6/132682076/e92867ce75eb.pdfIn PDF document text
    • http://files.ordernutsabouttella.com/uploads/1/3/1/6/131636890/376ff.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7030/0061/files/19087810720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8643/8807/files/welcome_to_the_black_parade_guitar_tab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9664/5538/files/vijay_tv_serials.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/womosoravitixugefiwil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4209/4755/files/dilokawutaxeku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2669/4822/files/86762556015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1588/9305/files/46493956634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2370/3969/files/pajigixupun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2523/6121/files/kakaxevezorakevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3086/1208/files/how_to_install_steam_games_on_ssd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1367/5930/files/mario_bros_themes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2222/8376/files/rewominafefoselapit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8957/6601/files/big_balls_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1301/2641/files/99991505311.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_off00006c90.bin
fa47897fd969c6bd8a4c329b2799688b6520a4c9f9a84c53d0ee7e251baace8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C90 5524 bytes
font_01_sfnt_off00007f5e.bin
19e25b91b3e65b2fdb8d34f775c49a3ac88ba808803a69395da88dae9c302123		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F5E 10176 bytes

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