Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb9a56e038cd1d56…

MALICIOUS

PDF

20.4 KB Created: 2019-04-30 05:10:40 +01:00 Authoring application: mPDF 5.7
MD5: 61632680d634e228d9828d1f9d25eff2 SHA-1: 2d5d11ec36fd4090740fc4452fd7c2f0d586d09f SHA-256: cb9a56e038cd1d561a4a86b73f9d521d1187861d7d02439f5193ef2d9ad3d4b1
60 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various book titles hosted on loaminoo.linkpc.net. While the URLs themselves are marked as confirmed benign, the sheer volume and structure suggest an attempt at SEO manipulation or potentially a distribution mechanism for malicious content disguised as legitimate links. No scripts were extracted from this sample.

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/9090093098090091/I-m-a-Stranger-Here-Myself-Notes-on-Returning-to-America-After-Twenty-Years-Away-Unabridged-Audible-Audio-Edition-by-Bill-Bryson.pdf
    • http://loaminoo.linkpc.net/1095099095093099/Notes-from-a-Small-Island-by-Bill-Bryson.pdf
    • http://loaminoo.linkpc.net/1099090093090095/Made-In-America-by-Bill-Bryson.pdf
    • http://loaminoo.linkpc.net/3093094092090099/One-Summer-America-1927-by-Bill-Bryson.pdf
    • http://loaminoo.linkpc.net/3090090093093091/the-lost-continent-travels-in-small-town-america-by-Bill-Bryson.pdf
    • http://loaminoo.linkpc.net/1099093091094099/Seeing-Further-Ideas-Endeavours-Discoveries-and-Disputes-The-Story-of-Science-Through-350-Years-of-the-Royal-Society-by-Bill-Bryson.pdf
    • http://loaminoo.linkpc.net/4094094098097093/Made-in-America-An-Informal-History-of-the-English-Language-in-the-United-States-by-Bill-Bryson.pdf
    • http://loaminoo.linkpc.net/1090094092099098091/The-Insight-And-The-Outsight-Images-of-America-of-the-Authors-Paul-Watzlawick-and-Bill-Bryson-by-Jennifer-Dacquxe9.pdf
    • http://loaminoo.linkpc.net/2093098097098093/Bryson-s-Dictionary-of-Troublesome-Words-A-Writer-s-Guide-to-Getting-It-Right-by-Bill-Bryson.pdf
    • http://loaminoo.linkpc.net/2098093090090099/Bryson-s-Dictionary-for-Writers-and-Editors-by-Bill-Bryson.pdf
    • http://loaminoo.linkpc.net/9097095092095093/Mein-Kampf---My-Struggle-Unabridged-edition-of-Hitlers-original-book---Four-and-a-Half-Years-of-Struggle-against-Lies-Stupidity-and-Cowardice-by-Adolf-Hitler.pdf
    • http://loaminoo.linkpc.net/8092093094095090/The-Complete-and-Unabridged-Recording-of-The-Lord-of-The-Rings-38-Audio-Cassettes-by-J-R-R-Tolkien.pdf
    • http://loaminoo.linkpc.net/3090099093096/One-Summer-by-Bill-Bryson.pdf
    • http://loaminoo.linkpc.net/3095093092091094/Shakespeare-by-Bill-Bryson.pdf
    • http://loaminoo.linkpc.net/7091094096091097/The-Lost-Continent-amp-Neither-Here-Nor-There-by-Bill-Bryson.pdf
    • http://loaminoo.linkpc.net/2096096093098097/In-a-Sunburned-Country-by-Bill-Bryson.pdf
    • http://loaminoo.linkpc.net/1091091090092095091/Terug-in-Amerika-by-Bill-Bryson.pdf
    • http://loaminoo.linkpc.net/5090090099097095/The-Lost-Continent-by-Bill-Bryson.pdf
    • http://loaminoo.linkpc.net/4090092099094091/A-Walk-in-the-Woods-by-Bill-Bryson.pdf
    • http://loaminoo.linkpc.net/4093095098094099/Icons-of-England-by-Bill-Bryson.pdf
    • http://loaminoo.linkpc.net/4094094098097093/Made-in-America-An-Informal-History-of-the-Eng

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