Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d3c891cd2b92ff9…

MALICIOUS

PDF

53.3 KB Created: 2019-04-30 17:21:31 +01:00 Authoring application: mPDF 5.7
MD5: 5947980efcd735470ca2d1238f082168 SHA-1: 883a5b092ed1dff5d5f54eeaba82688fbe1c3379 SHA-256: 6d3c891cd2b92ff902604f3c98fd9238d983f3c3c29fc2dd3e8507a969764b81
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, suggesting a link farm or SEO poisoning attempt. While the ML classifier flagged it as malicious, the specific intent beyond linking to other documents is unclear. The document body is heavily obfuscated and does not provide further clues.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9652

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/5091094096095096/The-Traffic-in-Babies-Cross-Border-Adoption-and-Baby-Selling-Between-the-United-States-and-Canada-1930-1972-by-Karen-Balcom.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/5091099098094090/The-Fifth-Freedom-Jobs-Politics-and-Civil-Rights-in-the-United-States-1941-1972-by-Anthony-S-Chen.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/3090095098096099/Regions-Apart-The-Four-Societies-of-Canada-and-the-United-States-by-Edward-Grabb.pdf
    • http://loaminoo.linkpc.net/7092092099096094/The-U-S-of-EH-How-Canada-Secretly-Controls-the-United-States-and-Why-That-s-OK-by-Kerry-Colburn.pdf
    • http://loaminoo.linkpc.net/2094098091091090/Missing-411-Western-United-States-and-Canada-by-David-Paulides.pdf
    • http://loaminoo.linkpc.net/7099098093093097/People-are-Seeing-Something-a-Survey-of-Lake-Monsters-in-the-United-States-and-Canada-by-Denver-Michaels.pdf
    • http://loaminoo.linkpc.net/8091097092099093/Weeds-of-Canada-and-the-Northern-United-States-A-Guide-for-Identification-by-France-Royer.pdf
    • http://loaminoo.linkpc.net/8095090099091097/Nationalism-and-Literature-The-Politics-of-Culture-in-Canada-and-the-United-States-by-Sarah-M-Corse.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/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/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/9096094097096097/Fireflies-Glow-Worms-and-Lightning-Bugs-Identification-and-Natural-History-of-the-Fireflies-of-the-Eastern-and-Central-United-States-and-Canada-by-Lynn-Frierson-Faust.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/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/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