Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa54f020b0752610…

MALICIOUS

PDF

16.4 KB Created: 2019-05-01 18:26:27 +01:00 Authoring application: mPDF 5.7
MD5: af3b36825f27aaf504c0cb0080ad4711 SHA-1: a3f2763deca41de840a75c933d8fa5febceb547e SHA-256: aa54f020b075261043fb6d3a44452dd3597a4855c47bcc18e2abd874ab3b4b6f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link farm with 22 external links, primarily pointing to book titles on the domain loaminoo.linkpc.net. This heuristic suggests the PDF is designed to drive traffic to these external resources. The ML classifier also flagged the PDF as malicious with a high probability. No scripts were extracted, and the document body is heavily obfuscated, making it difficult to determine a more specific user-facing lure.

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/3092095096090096/Cauldron-of-Fire-Blood-on-the-Stars-5-by-Jay-Allan.pdf
    • http://loaminoo.linkpc.net/1092097098093097/Duel-in-the-Dark-Blood-on-the-Stars-1-by-Jay-Allan.pdf
    • http://loaminoo.linkpc.net/6092096099091096/Of-Fire-and-Stars-Of-Fire-and-Stars-1-by-Audrey-Coulthurst.pdf
    • http://loaminoo.linkpc.net/4094093093091/Fire-Burn-and-Cauldron-Bubble-Jolie-Wilkins-1-by-H-P-Mallory.pdf
    • http://loaminoo.linkpc.net/2091092094093091/Cauldron-of-Blood-The-Matamoros-Cult-Killings-by-Jim-Schutze.pdf
    • http://loaminoo.linkpc.net/3098094090099096/Set-The-Stars-On-Fire-by-Sally-Wentworth.pdf
    • http://loaminoo.linkpc.net/1098094095094096/Dragon-in-the-Blood-Vale-of-Stars-2-by-Juliette-Cross.pdf
    • http://loaminoo.linkpc.net/6095095092094098/The-Blood-Hungry-Spleen-and-Other-Poems-About-Our-Parts-by-Allan-Wolf.pdf
    • http://loaminoo.linkpc.net/9090099095097097/Eine-Krone-aus-Feuer-und-Sternen-Of-Fire-and-Stars-1-by-Audrey-Coulthurst.pdf
    • http://loaminoo.linkpc.net/3097090097098096/Blood-and-Fire-by-R-Brennan.pdf
    • http://loaminoo.linkpc.net/8096093091092/Novels-by-Chris-D-lacey-The-Fire-Eternal-Fire-Star-the-Fire-Within-Icefire-the-Last-Dragon-Chronicles-Fire-World-by-Books-LLC.pdf
    • http://loaminoo.linkpc.net/4097094096092/The-Last-Dragon-Chronicles-Complete-Set-Books-1-5-The-Fire-Within-Icefire-Fire-Star-The-Fire-Eternal-and-Dark-Fire-5-Book-Set-by-Chris-d-39-Lacey.pdf
    • http://loaminoo.linkpc.net/1096096099098091/Blood-and-Fire-by-Carrie-Clevenger.pdf
    • http://loaminoo.linkpc.net/2091096090096091/Blood-and-Fire-by-Deva-Long.pdf
    • http://loaminoo.linkpc.net/2092098097/Blood-Ink-amp-Fire-by-Ashley-Mansour.pdf
    • http://loaminoo.linkpc.net/8094098090094095/Fire-and-Blood-A-History-of-Mexico-by-T-R-Fehrenbach.pdf
    • http://loaminoo.linkpc.net/4095093098097091/Blood-Feud-Fire-and-Ice-1-by-Jackie-Andrews.pdf
    • http://loaminoo.linkpc.net/1090096098094090/Halo-Blood-and-Fire-1-by-Frankie-Rose.pdf
    • http://loaminoo.linkpc.net/2097097095091097/Fire-in-the-Blood-Bad-Witch-4-by-Robyn-Bachar.pdf
    • http://loaminoo.linkpc.net/4093094098097098/Fire-In-His-Blood-Fireblood-Dragon-1-by-Ruby-Dixon.pdf

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