Malicious PDF — malware analysis report

Static analysis result for SHA-256 efd807cb5870a94e…

MALICIOUS

PDF

60.6 KB Created: 2019-04-29 23:06:55 +01:00 Authoring application: mPDF 5.7
MD5: a35e00799988ab07c067cffc4cb8b377 SHA-1: 1a1d396283599c95d18eeec2cf34b179749c7fc2 SHA-256: efd807cb5870a94eb1f492fad80b06aef3d9b52a6f8889a7412a367ce57c6225
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to host malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9461

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/4093092094097091/Over-There-The-United-States-in-the-Great-War-1917-18-by-Byron-Farwell.pdf
    • http://loaminoo.linkpc.net/2095096097096099/The-Great-War-in-Africa-1914-1918-by-Byron-Farwell.pdf
    • http://loaminoo.linkpc.net/8095092098091096/In-the-United-States-Circuit-Court-of-Appeals-for-the-Ninth-Circuit-United-States-of-America-Appellant-vs-Emery-J-Lesher-Appelle-Transcript-of-Record-Upon-Appeal-from-the-United-States-District-Court-for-the-District-of-Oregon-by-United-States-Court-of-Appeals.pdf
    • http://loaminoo.linkpc.net/3094099096090099/Manliness-and-Civilization-A-Cultural-History-of-Gender-and-Race-in-the-United-States-1880-1917-by-Gail-Bederman.pdf
    • http://loaminoo.linkpc.net/1090091094093093091/United-States-Circuit-Court-of-Appeals-for-the-Ninth-Circuit-1912-Vol-5-of-6-Transcript-of-Record-William-F-Kettenbach-and-George-H-Kester-Plaintiffs-in-Error-Vs-The-United-States-of-America-Defendant-in-Error-Pages-1521-to-1916-Inclusive-by-United-States-Court-of-Appeals.pdf
    • http://loaminoo.linkpc.net/2095096098099094/Mr-Kipling-s-Army-All-the-Queen-s-Men-by-Byron-Farwell.pdf
    • http://loaminoo.linkpc.net/1090091094093094090/United-States-Circuit-Court-of-Appeals-for-the-Ninth-Circuit-Vol-3-of-6-Transcript-of-Record-William-F-Kettenbach-Geo-H-Kester-and-William-Dwyer-Plaintiffs-in-Error-vs-the-United-States-of-America-Defendant-in-Error-Pages-817-to-1232-Inclusi-by-United-States-Circuit-Court-of-Appeals.pdf
    • http://loaminoo.linkpc.net/8095092098091093/United-States-Circuit-Court-of-Appeals-Fo-the-Ninth-Circuit-The-United-States-of-America-Appellant-vs-Komada-and-Co-Appelle-Condensed-Transcript-of-Record-Upon-Appeal-from-the-United-States-Circuit-Court-for-Northern-District-of-California-by-U-S-Court-of-Appeals-Ninth-Circuit.pdf
    • http://loaminoo.linkpc.net/8090090091094092/The-Collection-of-United-States-Cents-of-Dr-S-T-Millard-Together-with-the-Collections-of-United-States-and-Pioneer-Gold-and-Silver-Coins-of-Mr-Edward-Heissler-Chicago-and-Other-Properties-To-Be-Sold-at-Auction-Thursday-March-18th-1915-by-B-Max-Mehl.pdf
    • http://loaminoo.linkpc.net/1090092094096090093/United-States-Court-of-Appeals-for-the-Ninth-Circuit-Connell-Brothers-Company-a-Corporation-Plaintiff-in-Error-vs-H-Diederichsen-and-Company-Defendant-in-Error-Transcript-of-Record-Upon-Writ-of-Error-to-the-United-States-Court-for-China-by-United-States-Circuit-Court-of-Appeals.pdf
    • http://loaminoo.linkpc.net/8095092097099098/United-States-Circuit-Court-of-Appeals-for-the-Ninth-Circuit-Ngai-Kwan-Ying-Appellant-vs-John-D-Nagle-Commissioner-of-Immigration-Port-of-San-Francisco-California-Appelle-Transcript-of-Record-by-United-States-Circuit-Court-of-Appeals.pdf
    • http://loaminoo.linkpc.net/5092090091090099/The-Formation-of-National-Party-Systems-Federalism-and-Party-Competition-in-Canada-Great-Britain-India-and-the-United-States-by-Pradeep-K-Chhibber.pdf
    • http://loaminoo.linkpc.net/8095092098091098/United-States-Court-of-Appeals-for-the-Ninth-Circuit-Vol-1-of-3-Greene-Process-Metal-Company-a-Corporation-Appellant-vs-Washington-Iron-Works-a-Corporation-Appelle-Transcript-of-Record-Pages-1-522-Upon-Appeal-from-the-District-Court-of-the-Uni-by-United-States-Circuit-Court-of-Appeals.pdf
    • http://loaminoo.linkpc.net/8095092097099095/In-the-United-States-Circuit-Court-of-Appeals-for-the-Ninth-Circuit-Wilson-Western-Sporting-Goods-Co-a-Corporation-Appellant-and-Cross-Appellee-vs-George-E-Barnhart-Cross-Appellant-and-Appelle-by-United-States-Court-of-Appeals.pdf
    • http://loaminoo.linkpc.net/6096094097099090/United-States-Circuit-Court-of-Appeals-for-the-Ninth-Circuit-Walter-M-Petitfils-Petitioner-vs-Commissioner-of-Internal-Revenue-Respondent-Transcript-of-Record-Upon-Petition-to-Review-an-Order-of-the-United-States-Board-of-Tax-Appeals-by-U-S-Court-of-Appeals-Ninth-Circuit.pdf
    • http://loaminoo.linkpc.net/8095092098090094/United-States-Circuit-Court-of-Appeals-for-the-Ninth-Circuit-N-N-S-Matcovich-Appellant-vs-Richard-Nickell-as-Collector-of-Internal-Revenue-for-the-First-District-of-California-Appelle-Transcript-of-Record-Upon-Appeal-from-the-District-Court-of-by-United-States-Circuit-Court-of-Appeals.pdf
    • http://loaminoo.linkpc.net/1090091094093093094/United-States-Circuit-Court-of-Appeals-for-the-Ninth-Circuit-Vol-13-The-United-States-of-America-Appellant-vs-William-F-Kettenbach-George-H-Kester-and-William-Dwyer-Appellees-Transcript-of-Record-Pages-4575-to-4724-Inclusive-by-U-S-Court-of-Appeals-Ninth-Circuit.pdf
    • http://loaminoo.linkpc.net/7097094092099092/In-the-United-States-Circuit-Court-of-Appeals-Ninth-Circuit-The-Oregon-and-California-Railroad-Company-a-Corporation-Complainant-and-Appellant-vs-Maria-de-Grubissich-Nee-Maria-de-Pourtales-Defendant-and-Appellee-Upon-Appeal-from-the-United-States-by-U-S-Court-of-Appeals-Ninth-Circuit.pdf
    • http://loaminoo.linkpc.net/8095092098090091/United-States-Circuit-Court-of-Appeals-for-the-Ninth-Circuit-Northwestern-National-Insurance-Company-a-Corporation-Appellant-vs-Geo-McFarlane-Appelle-Transcript-of-Record-Upon-Appeal-from-the-United-States-District-Court-for-the-Southern-District-by-U-S-Court-of-Appeals-Ninth-Circuit.pdf
    • http://loaminoo.linkpc.net/1090092094097094/1917-Australia-s-Great-War-4-by-Kelly-Gardiner.pdf
    • http://loaminoo.linkpc.net/3094099096090099/Manliness-and-Civilization-A-C