Malicious PDF — malware analysis report

Static analysis result for SHA-256 07be4c441b6e768a…

MALICIOUS

PDF

26.8 KB Created: 2019-05-02 19:25:21 +01:00 Authoring application: mPDF 5.7
MD5: 1eabb45690966d43a31b5f267e3b4072 SHA-1: 3dfc8ee87f7fddbbaec85d5aaeebc95c0320cc8a SHA-256: 07be4c441b6e768a65d8ef2f508987c5c8802c865a55dc3a2f2d383ad23c9480
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, which suggests a link farm or phishing attempt. The ML_NYX_PDF_MALICIOUS classifier also flagged this document with high confidence. While no scripts were explicitly extracted, the structure of the PDF and the embedded links indicate an attempt to direct users to external, potentially malicious, resources, likely as part of a spearphishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

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/3095094091091095/Tuesday-s-Gone-by-Nicci-French.pdf
    • http://loaminoo.linkpc.net/2092095099090096/What-to-do-When-Someone-Dies-by-Nicci-French.pdf
    • http://loaminoo.linkpc.net/5090092097097097/The-Memory-Game-by-Nicci-French.pdf
    • http://loaminoo.linkpc.net/2097094099091091/Secret-Smile-by-Nicci-French.pdf
    • http://loaminoo.linkpc.net/3095096094096091/Beneath-The-Skin-by-Nicci-French.pdf
    • http://loaminoo.linkpc.net/1092099092099092/Land-of-the-Living-by-Nicci-French.pdf
    • http://loaminoo.linkpc.net/2094094096095091/Blue-Monday-Frieda-Klein-1-by-Nicci-French.pdf
    • http://loaminoo.linkpc.net/4096094097091092/Waiting-for-Wednesday-Frieda-Klein-3-by-Nicci-French.pdf
    • http://loaminoo.linkpc.net/4098095098094095/Who-Will-Catch-Us-As-We-Fall-by-Iman-Verjee.pdf
    • http://loaminoo.linkpc.net/1092093090094097/Catch-Me-When-I-Fall-Dreamcatcher-1-by-Vicki-Leigh.pdf
    • http://loaminoo.linkpc.net/2099099090090097/Ready-to-Catch-Him-Should-He-Fall-by-Neil-Bartlett.pdf
    • http://loaminoo.linkpc.net/3099094095098096/Catch-Me-When-I-Fall-A-Story-of-Punk-Rock-Addiction-and-Recovery-by-C-J-Gunn.pdf
    • http://loaminoo.linkpc.net/8097096094092094/Die-Katze-l-sst-das-Mausen-nicht-Maus-im-Aus-Ein-Fall-f-r-Mrs-Murphy-Catch-As-Cat-Can-Tail-Of-The-Tip-Off-Mrs-Murphy-10-11-by-Rita-Mae-Brown.pdf
    • http://loaminoo.linkpc.net/1091090091094095091/Eug-ne-s-French-Method-Or-Elementary-French-Lessons-Being-a-Course-of-Easy-Rules-and-Exercises-Introductory-to-the-Author-s-Student-s-Comparative-French-Grammar-by-G-Eugene-Fasnacht.pdf
    • http://loaminoo.linkpc.net/3097095094092094/-Before-the-Fall-8-Shingeki-no-Kyojin-Before-the-Fall-8-Attack-on-Titan-Before-the-Fall-Manga-8-by-Hajime-Isayama.pdf
    • http://loaminoo.linkpc.net/6098091099091098/WRESTLING-Catch-As-Catch-Can-Style---23-Illustrated-Wrestling-Moves-by-Edward-Hitchcock-Jr-.pdf
    • http://loaminoo.linkpc.net/6094097098095094/MADAME-BOVARY-Bilingual-Edition-English-French-A-Classic-of-French-Literature-from-the-prolific-French-writer-known-for-Salammb-Sentimental-Education-et-P-cuchet-November-and-Three-Tales-by-Gustave-Flaubert.pdf
    • http://loaminoo.linkpc.net/5095092091094097/Familypedia---French-Language-Articles-in-French-French-Speaking-Countries-La-Francophonie-Pages-in-French-Translations-Needed-Fr-User-Fr-Abraham-Coste-Baronnet-Beaudet-Brice-Baronnet-Charles-Borromee-Beaudet-Charles-Baronnet-by-Source-Wikia.pdf
    • http://loaminoo.linkpc.net/1091090091095095091/Comparative-French-English-Studies-Grammatical-and-Idiomatic-Being-an-Entirely-Re-Written-Edition-of-the-French-Exercises-for-Middle-and-Upper-Forms-Adapted-to-the-Studens-Comparative-French-Grammar-by-G-Eugene-Fasnacht.pdf
    • http://loaminoo.linkpc.net/1091097094090090090/Catch-as-Catch-by-Rob-Budde.pdf