Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eedceadc161ad51…

MALICIOUS

PDF

17.1 KB Created: 2019-04-30 18:58:54 +01:00 Authoring application: mPDF 5.7
MD5: 6416327fac441b187f77d44b0e80698b SHA-1: 04c17577acb5d7c5e561d0738cce9bbbcb9e4c51 SHA-256: 1eedceadc161ad5158be2b1ad5d3977c8ca2db150cfa6b71bd13fe893998c87f
60 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, many of which are hosted on the dynamic DNS domain 'loaminoo.linkpc.net'. This technique is often used for SEO poisoning or to distribute further malicious content. No scripts were extracted from this sample, and the document body was heavily obfuscated, limiting further analysis of the specific lure. The primary IOC is the domain hosting the numerous linked PDFs.

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/4094096094098095/Uncle-Petros-and-Goldbach-s-Conjecture-by-Apostolos-K-Doxiadis.pdf
    • http://loaminoo.linkpc.net/5095094091090/Uncle-Petros-and-Goldbach-s-Conjecture-A-Novel-of-Mathematical-Obsession-by-Apostolos-K-Doxiadis.pdf
    • http://loaminoo.linkpc.net/1090098094092/Logicomix-An-Epic-Search-for-Truth-by-Apostolos-K-Doxiadis.pdf
    • http://loaminoo.linkpc.net/6092093097098093/The-Real-Fatou-Conjecture-Am-144-Volume-144-by-Jacek-Graczyk.pdf
    • http://loaminoo.linkpc.net/8091093093091091/Spithame-Zoes-Diegemata-by-Petros-Sophas.pdf
    • http://loaminoo.linkpc.net/2099092093090096/The-Poincar-Conjecture-In-Search-of-the-Shape-of-the-Universe-by-Donal-O-39-Shea.pdf
    • http://loaminoo.linkpc.net/4097099091096098/Moan-For-Uncle-Moan-for-Uncle-1-by-Terry-Towers.pdf
    • http://loaminoo.linkpc.net/3097097093093091/Oliver-and-Angus-Shifting-Perspectives-1-by-Nerine-Petros.pdf
    • http://loaminoo.linkpc.net/3097098091091097/Jacey-Fynn-amp-Aden-Shifting-Perspectives-2-by-Nerine-Petros.pdf
    • http://loaminoo.linkpc.net/7094094093093090/Ricci-Flow-and-the-Poincare-Conjecture-Clay-Mathematics-Monographs-by-John-W-Morgan.pdf
    • http://loaminoo.linkpc.net/3092094094092093/The-Life-and-Struggles-of-Our-Mother-Walatta-Petros-A-Seventeenth-Century-African-Biography-of-an-Ethiopian-Woman-by-Galawdewos.pdf
    • http://loaminoo.linkpc.net/2095092094099095/Uncle-John-s-Bathroom-Reader-Uncle-John-s-Bathroom-Reader-1-by-Bathroom-Readers-39-Institute.pdf
    • http://loaminoo.linkpc.net/6094095092096099/My-Uncle-Silas-by-H-E-Bates.pdf
    • http://loaminoo.linkpc.net/2093099094092/Uncle-Sam-by-Steve-Darnall.pdf
    • http://loaminoo.linkpc.net/4098094091096095/The-Last-Uncle-by-Linda-Pastan.pdf
    • http://loaminoo.linkpc.net/1091099092092090094/Practical-LSD-Manufacture-by-Uncle-Fester.pdf
    • http://loaminoo.linkpc.net/5092090095090092/Uncle-Lau-s-Teochew-Recipes-by-Tan-Lee-Leng.pdf
    • http://loaminoo.linkpc.net/7093098095099/My-Uncle-Napoleon-by-Iraj-Pezeshkzad.pdf
    • http://loaminoo.linkpc.net/3096096095090098/Uncle-Fred-An-Omnibus-by-P-G-Wodehouse.pdf
    • http://loaminoo.linkpc.net/1099092098093/Losing-Uncle-Tim-by-Marykate-Jordan.pdf
    • http://loaminoo.linkpc.net/7094094093093090/Ricci-Flow-and-the-Poincare-Conjecture-Clay-Mathematics-Monographs-by-John-W-Morgan.p

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