Malicious PDF — malware analysis report

Static analysis result for SHA-256 deb062729bece1b1…

MALICIOUS

PDF

16.2 KB Created: 2019-04-30 04:24:07 +01:00 Authoring application: mPDF 5.7
MD5: e1fda4d0b700815383e3b2d4e4f36d87 SHA-1: 4ea5af4c19477d5988258ed6286b992bdf360711 SHA-256: deb062729bece1b1fce1eda93ae9d5df5dd3d017f6e416e99ae85f2b0d7ee782
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, as indicated by the PDF_SEO_LINK_FARM heuristic. While the URLs themselves are marked as confirmed benign, the sheer volume and the nature of the heuristic suggest a malicious intent, possibly for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9898

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/2092092096096097/Inside-These-Walls-by-Rebecca-Coleman.pdf
    • http://loaminoo.linkpc.net/3092090099090097/The-Walls-Have-Eyes-The-Sky-Inside-2-by-Clare-B-Dunkle.pdf
    • http://loaminoo.linkpc.net/8092093095090091/Dish-The-Inside-Story-on-the-World-of-Gossip-by-Jeannette-Walls.pdf
    • http://loaminoo.linkpc.net/1098090092096/Walls-of-Heritage-Walls-of-Pride-African-American-Murals-by-James-Prigoff.pdf
    • http://loaminoo.linkpc.net/6090099092091099/Kidding-Around-NYC-For-Kids-Who-Want-the-Inside-Track-on-the-City-by-Suzanne-Roche.pdf
    • http://loaminoo.linkpc.net/3097096090091/City-of-Bones-City-of-Ashes-City-of-Glass-City-of-Fallen-Angels-City-of-Lost-Souls-The-Mortal-Instruments-1-5-by-Cassandra-Clare.pdf
    • http://loaminoo.linkpc.net/4098093094096091/City-of-Bones-City-of-Ashes-City-of-Glass-City-of-Fallen-Angels-City-of-Lost-Souls-The-Mortal-Instruments-1-5-by-Cassandra-Clare.pdf
    • http://loaminoo.linkpc.net/3096098097097094/Imperial-Life-in-the-Emerald-City-Inside-Iraq-s-Green-Zone-by-Rajiv-Chandrasekaran.pdf
    • http://loaminoo.linkpc.net/4094094094092096/At-First-Sight-by-Jodie-Larsen.pdf
    • http://loaminoo.linkpc.net/2097090095096094/The-Vampire-Queen-by-Jodie-Pierce.pdf
    • http://loaminoo.linkpc.net/3097096094092094/The-Reluctant-Vampire-by-Jodie-Pierce.pdf
    • http://loaminoo.linkpc.net/2093096093097094/Spectacle-by-Jodie-Lynn-Zdrok.pdf
    • http://loaminoo.linkpc.net/1091090091090090/Jodie-and-the-Library-Card-by-Julie-Hodgson.pdf
    • http://loaminoo.linkpc.net/1091099094090096/Dark-Days-The-Screenplay-by-Jodie-Jones.pdf
    • http://loaminoo.linkpc.net/1090095091091090096/Jodie-and-the-Library-Card-by-Julie-Hodgson.pdf
    • http://loaminoo.linkpc.net/2091095096091097/Psychopath-by-Morton-Bain.pdf
    • http://loaminoo.linkpc.net/1091095092091094099/Forbidden-Lyrics-Lightning-Strikes-3-by-Jodie-Larson.pdf
    • http://loaminoo.linkpc.net/1097098094098094/Forever-Woman-by-January-Bain.pdf
    • http://loaminoo.linkpc.net/7098093091093097/Destination-Success-by-Dwight-Bain.pdf
    • http://loaminoo.linkpc.net/4097094098092099/BAIN-Undefeated-Streak-1-by-A-L-Wood.pdf
    • http://loaminoo.linkpc.net/4098093094096091/City-of-Bones-City-of-Ashes-City-of-Glass-City-of-Fallen-Angels-City-of-Lost-Souls-The-M

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