Malicious PDF — malware analysis report

Static analysis result for SHA-256 25fcaab8f53176ec…

MALICIOUS

PDF

14.9 KB Created: 2019-04-30 17:47:06 +01:00 Authoring application: mPDF 5.7
MD5: 837d20bec47e3dd4c2f061b840af20b1 SHA-1: a322721748f1eb8de70d2e610f1e87e8fc259a91 SHA-256: 25fcaab8f53176ec7e8ef6f551894fc8744d919349577e8f4583f6700d47222a
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF was flagged for containing a mass external link farm, with the first URL pointing to a seemingly benign play script. However, the sheer volume of links and the PDF's small size suggest a malicious intent, possibly for SEO poisoning or to host further malicious content. The document body is heavily corrupted, preventing analysis of its direct content, but the embedded URLs are the primary indicators of compromise.

Heuristics 2

  • 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.
  • 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 http://loaminoo.linkpc.net/7095092092098094/Plays-2-Reunion-Dark-Pony-A-Life-in-the-Theatre-The-Woods-Lakeboat-Edmond-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/7095092092093091/The-Woods-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/7095092093095092/No-One-Will-Be-Immune-and-Other-Plays-and-Pieces-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/7095092092098099/Plays-4-The-Cryptogram-Oleanna-The-Old-Neighborhood-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/7095092091091090/Goldberg-Street-Short-Plays-and-Monologues-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/6096092094097096/Plays-of-Edmond-Rostand-Volume-1-by-Edmond-Rostand.pdf
    • http://loaminoo.linkpc.net/6096092094096095/Plays-of-Edmond-Rostand---Volume-I-by-Edmond-Rostand.pdf
    • http://loaminoo.linkpc.net/6096092094097099/Plays-of-Edmond-Rostand-Vol-2-by-Edmond-Rostand.pdf
    • http://loaminoo.linkpc.net/6096092094096097/Plays-of-Edmond-Rostand-by-Edmond-Rostand.pdf
    • http://loaminoo.linkpc.net/6098092095092097/Walden-or-Life-in-the-Woods-by-Henry-David-Thoreau.pdf
    • http://loaminoo.linkpc.net/6095093093095093/Walden-Or-Life-In-The-Woods-Selections-From-the-American-Classic-by-Henry-David-Thoreau.pdf
    • http://loaminoo.linkpc.net/5091096093092097/The-Chekhov-Theatre-A-Century-of-the-Plays-in-Performance-by-Laurence-Senelick.pdf
    • http://loaminoo.linkpc.net/7095099092095092/Walden---Life-in-the-Woods-School-College-and-Seniors-Edition-by-Henry-David-Thoreau.pdf
    • http://loaminoo.linkpc.net/7095092092092090/David-Mamet-s-Oleanna-by-David-Sauer.pdf
    • http://loaminoo.linkpc.net/7095092093093097/Henrietta-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/7095092093095091/School-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/7095092091090099/Romance-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/7095092091091092/Faustus-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/2090098091096095/Race-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/7095092092093092/Passover-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/6

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