Malicious PDF — malware analysis report

Static analysis result for SHA-256 41cd4c3eb9092cf0…

MALICIOUS

PDF

21.2 KB Created: 2019-04-30 19:05:39 +01:00 Authoring application: mPDF 5.7
MD5: 07a8581b3e466cb647eb9858c4c72ac6 SHA-1: 88d0285c5ebdae3cd936016a3df9cee120c85b72 SHA-256: 41cd4c3eb9092cf045230253d80c8f5293156dcf2e64ca37c4dd6bf1970fb60b
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of external links, forming a link farm. The document body contains numerous URLs pointing to what appear to be book titles, likely intended to disguise the malicious nature of the links. The primary attack pattern involves directing users to a large collection of external PDFs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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/4095094099092097/The-Alcoholic-Bitch-Who-Ruined-Your-Life-Stories-About-Love-Death-and-Rehab-by-Molly-McAleer.pdf
    • http://loaminoo.linkpc.net/5091097091094/Cocaine-Ain-t-for-Me-but-I-Love-the-Smell-Bitch-You-Don-t-Know-My-Life-Book-1-by-Justone-Malone.pdf
    • http://loaminoo.linkpc.net/5090091096098095/A-Homemade-Life-Stories-and-Recipes-from-My-Kitchen-Table-by-Molly-Wizenberg.pdf
    • http://loaminoo.linkpc.net/1090098090096091095/Love-Rehab-A-Novel-in-Twelve-Steps-by-Jo-Piazza.pdf
    • http://loaminoo.linkpc.net/1091093094098099091/Flavour-Research-of-Alcoholic-Beverages-Instrumental-and-Sensory-Analysis-Proceedings-of-the-Alko-Symposium-on-Flavour-Research-of-Alcoholic-Beverag-by-Lalli-Nykanen.pdf
    • http://loaminoo.linkpc.net/4093093097097096/A-Breath-of-Life-Life-amp-Death-Saga-Book-2-by-D-Love.pdf
    • http://loaminoo.linkpc.net/9092095096092092/Clutter-Rehab-101-Tips-and-Tricks-to-Become-an-Organization-Junkie-and-Love-It-by-Laura-Wittmann.pdf
    • http://loaminoo.linkpc.net/2092091092099090/A-to-Z-Stories-of-Life-and-Death-by-D-Biswas.pdf
    • http://loaminoo.linkpc.net/7096099099091090/Ruined-Promises-Ruined-3-by-Tracy-Lorraine.pdf
    • http://loaminoo.linkpc.net/8091093099098090/The-Bondage-of-Love-A-Life-of-Mrs-Samuel-Taylor-Coleridge-Coleridge-2-by-Molly-Lefebure.pdf
    • http://loaminoo.linkpc.net/6096091099090090/13-Forevers-Stories-and-Reflections-on-Death-and-Love-by-Kevin-Chaba.pdf
    • http://loaminoo.linkpc.net/5093095099092/The-World-s-Shortest-Stories-of-Love-and-Death-by-Steve-Moss.pdf
    • http://loaminoo.linkpc.net/4091097094091/Blood-Stories-of-Life-and-Death-from-the-Civil-War-by-Ulysses-S-Grant.pdf
    • http://loaminoo.linkpc.net/1091098092094099094/You-Can-Stop-Humming-Now-A-Doctor-s-Stories-of-Life-Death-and-in-Between-by-Daniela-Lamas.pdf
    • http://loaminoo.linkpc.net/8092090098097/Do-No-Harm-Stories-of-Life-Death-and-Brain-Surgery-by-Henry-Marsh.pdf
    • http://loaminoo.linkpc.net/3097094097094/Ruined-Ruined-1-by-Paula-Morris.pdf
    • http://loaminoo.linkpc.net/2091099093098097/Wesley-James-Ruined-My-Life-by-Jennifer-Honeybourn.pdf
    • http://loaminoo.linkpc.net/3095094098098099/TWEETS-FROM-THE-TRENCHES-Little-True-Stories-of-Life-and-Death-On-The-Western-Front-by-Jacqueline-Carmichael.pdf
    • http://loaminoo.linkpc.net/9093094090093/Life-s-A-Bitch-by-C-P-.pdf
    • http://loaminoo.linkpc.net/1091093099096095092/Main-Bitch-Dreams-Side-Bitch-Status-3-by-Leondra-LeRae.pdf
    • http://loaminoo.linkpc.net/1091093094098099091/Flavour-Research-of-Alcoholic-Beverages-Instrumental-and-Sensory-Analysis-Proceedings-of-the-Alko-Symposium-on-Flavour-Research-of-Alcoholic