Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4ab950ef65c70a1…

MALICIOUS

PDF

16.8 KB Created: 2019-05-01 20:12:27 +01:00 Authoring application: mPDF 5.7
MD5: b8d719cf81d78b0414fb81475aeca09f SHA-1: acf23c3ef93b3756a2f9f88fcb12207954a791f8 SHA-256: d4ab950ef65c70a11213c05338231f682347a81bda8add180d24f97b210c1f6f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to external PDF files hosted on the 'loaminoo.linkpc.net' domain. This is indicative of a link farm or SEO poisoning attack, designed to drive traffic to potentially malicious content or to manipulate search engine rankings. The ML classifier strongly supports the malicious verdict. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/6099094098098099/Hard-to-Forget-Hard-to-Resist-0-5-by-Shanora-Williams.pdf
    • http://loaminoo.linkpc.net/1094095094094098/Hard-to-Resist-Hard-to-Resist-1-by-Shanora-Williams.pdf
    • http://loaminoo.linkpc.net/2094092096094090/Too-Hard-to-Resist-Wherever-You-Go-3-by-Robin-Bielman.pdf
    • http://loaminoo.linkpc.net/6091096090093095/A-Hard-Man-to-Forget-by-Dan-Ames.pdf
    • http://loaminoo.linkpc.net/1090095093098092095/How-to-Forgive-When-It-s-Hard-to-Forget-by-Joy-Haney.pdf
    • http://loaminoo.linkpc.net/4091099097099099/Cold-Hard-Ride-Hard-Land-to-Rule-Trilogy-2-by-Anthony-Whitt.pdf
    • http://loaminoo.linkpc.net/4092090095098093/Into-The-Hard-Hills-Hard-Land-To-Rule-Trilogy-3-by-Anthony-Whitt.pdf
    • http://loaminoo.linkpc.net/9094097090092097/Felon-Fitness-How-to-Get-a-Hard-Body-Without-Doing-Hard-Time-by-William-S-Kroger.pdf
    • http://loaminoo.linkpc.net/9096098096099097/Hard-Style-Abs-Hit-Hard-Lift-Heavy-Look-the-Part-by-Pavel-Tsatsouline.pdf
    • http://loaminoo.linkpc.net/3093098096095090/Rebel-Hard-Hard-Play-2-by-Nalini-Singh.pdf
    • http://loaminoo.linkpc.net/1094095099099093/Hard-to-Stop-Hard-Targets-3-by-Wendy-Byrne.pdf
    • http://loaminoo.linkpc.net/9096098098096090/Beyond-Crunches-Hard-Science-Hard-ABS-by-Pavel-Tsatsouline.pdf
    • http://loaminoo.linkpc.net/7090096093099091/EMPIRE-OF-SAND-The-Ehrenberg-Quartzsite-Parker-Triangle-Myths-Mistakes-Hard-Times-and-a-Few-Hard-Cases-by-Donald-Chaput.pdf
    • http://loaminoo.linkpc.net/1099097092098097/Hard-Ever-After-Hard-Ink-4-6-by-Laura-Kaye.pdf
    • http://loaminoo.linkpc.net/4095092099099093/Hard-to-Come-By-Hard-Ink-3-by-Laura-Kaye.pdf
    • http://loaminoo.linkpc.net/1097096099097097/Hard-as-It-Gets-Hard-Ink-1-by-Laura-Kaye.pdf
    • http://loaminoo.linkpc.net/1091093093/Hard-to-Let-Go-Hard-Ink-4-by-Laura-Kaye.pdf
    • http://loaminoo.linkpc.net/3099096099094091/Hard-as-You-Can-Hard-Ink-2-by-Laura-Kaye.pdf
    • http://loaminoo.linkpc.net/7093098091090091/HARD-MONEY-SUCCESS-FORMULA-The-18-Critical-Must-Ask-Questions-For-Hard-Money-Lenders-That-Will-Guarantee-Funds-For-Your-Real-Estate-Deals-Every-Single-Time-by-Sandy-Cesaire.pdf
    • http://loaminoo.linkpc.net/1090097099097093/Hard-Cash-Hard-Cash-Trilogy-1-by-Kate-Cann.pdf
    • http://loaminoo.linkpc.net/9096098098096090/Bey

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