Malicious PDF — malware analysis report

Static analysis result for SHA-256 43c79712f28d0b79…

MALICIOUS

PDF

14.0 KB Created: 2019-05-02 05:41:43 +01:00 Authoring application: mPDF 5.7
MD5: b332e35bda5b3cff927f138a7eaa4cb3 SHA-1: 14815dfdae3147647f289d048db32eb95b3e1972 SHA-256: 43c79712f28d0b7952f668bf1f5a293e0cb20d16eff16034ab4c649c6240f8f3
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs, identified as a link farm, which is a common technique for SEO manipulation or distributing malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, and the document body was heavily obfuscated, preventing a deeper analysis of the specific lure or payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

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/2095099098098095/Bound-by-Love-The-Bound-Series-2-by-S-E-Gilchrist.pdf
    • http://loaminoo.linkpc.net/3099090094098098/Bound-by-Honor-Bound-by-Love-Native-American-Romance-3-by-Ruth-Ann-Nordin.pdf
    • http://loaminoo.linkpc.net/1096091091090097/The-Bound-Series-Bound-1-3-by-Ava-March.pdf
    • http://loaminoo.linkpc.net/7095092093090097/Bound-by-Vengeance-Ravage-MC-Bound-3-by-Ryan-Michele.pdf
    • http://loaminoo.linkpc.net/4098092090099092/Forever-Bound-Bound-by-Darkness-1-by-Leanne-Scott.pdf
    • http://loaminoo.linkpc.net/4091090097093090/Bound-by-Destiny-Ravage-MC-Bound-5-by-Ryan-Michele.pdf
    • http://loaminoo.linkpc.net/2099099091098096/Picture-Her-Bound-Bayou-Bound-1-by-Sidney-Bristol.pdf
    • http://loaminoo.linkpc.net/7095092092090099/Bound-by-Affliction-Ravage-MC-Bound-4-by-Ryan-Michele.pdf
    • http://loaminoo.linkpc.net/1099095094095095/Bound-by-Spells-Bound-2-by-Stormy-Smith.pdf
    • http://loaminoo.linkpc.net/7092097092099093/Bound-Bound-Hearts-Book-1-by-S-N-Garza.pdf
    • http://loaminoo.linkpc.net/1092095095096098/Bound-by-Prophecy-Bound-3-by-Stormy-Smith.pdf
    • http://loaminoo.linkpc.net/8096097093092/Bound-in-Darkness-Bound-2-by-Cynthia-Eden.pdf
    • http://loaminoo.linkpc.net/4093091095097097/Bound-by-Legend-Bound-2-by-A-D-Trosper.pdf
    • http://loaminoo.linkpc.net/1093094092091092/Bound-Dark-Horse-Series-Book-1-by-J-S-Scott.pdf
    • http://loaminoo.linkpc.net/3091096093096090/Bound-to-Love-by-Sally-Clements.pdf
    • http://loaminoo.linkpc.net/2098092091096092/Bound-by-Love-by-Jann-Rowland.pdf
    • http://loaminoo.linkpc.net/3099092093098098/Wild-Child-Bound-for-Hell-MC-Series-Book-1-by-Needa-Warrant.pdf
    • http://loaminoo.linkpc.net/4093093091094093/Bound-by-Tears-Cauld-Ane-Series-Book-6-by-Tracey-Jane-Jackson.pdf
    • http://loaminoo.linkpc.net/1091091099095092098/Bound-by-Duty-Contract-to-Love-3-by-Fel-Fern.pdf
    • http://loaminoo.linkpc.net/1091091099095093094/Bound-by-Honor-Contract-to-Love-4-by-Fel-Fern.pdf
    • http://loaminoo.linkpc.net/8096097093092/Bound-in-Darkness-Boun

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