Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6ab6db9c0fbab75…

MALICIOUS

PDF

23.2 KB Created: 2019-04-30 19:18:07 +01:00 Authoring application: mPDF 5.7
MD5: 21adde2e5b23b6b331f4badfad1f945e SHA-1: 7c4404d0f0dbf1963ac526c7beb2db1c3e18c6cc SHA-256: a6ab6db9c0fbab75c0b187ad98e1a6139492d3e1d6257c4b61239405bbab79ba
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded URLs, forming a link farm. While the document body was unreadable, the presence of numerous links suggests an attempt to manipulate search engine results or redirect users to potentially harmful content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9903

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/1098095093098098/Ice-Bound-A-Doctor-s-Incredible-Battle-for-Survival-at-the-South-Pole-by-Jerri-Nielsen.pdf
    • http://loaminoo.linkpc.net/1098095095096090/Bound-by-Ice-A-True-North-Pole-Survival-Story-by-Sandra-Neil-Wallace.pdf
    • http://loaminoo.linkpc.net/1093091099095/The-Adventures-of-a-South-Pole-Pig-A-Novel-of-Snow-and-Courage-by-Chris-Kurtz.pdf
    • http://loaminoo.linkpc.net/1093098093092091/Folly-Beach-Dances---The-Infinite-Rhythms-of-a-South-Carolina-Seashore-by-Sheree-K-Nielsen.pdf
    • http://loaminoo.linkpc.net/3097090095097093/Incredible-Victory-The-Battle-of-Midway-by-Walter-Lord.pdf
    • http://loaminoo.linkpc.net/1094093096090098/Fatal-Forecast-An-Incredible-True-Tale-of-Disaster-and-Survival-at-Sea-by-Michael-J-Tougias.pdf
    • http://loaminoo.linkpc.net/1098095094092091/Fatal-Forecast-An-Incredible-True-Tale-of-Disaster-and-Survival-at-Sea-by-Michael-J-Tougias.pdf
    • http://loaminoo.linkpc.net/1099096098099091/Incredible-Turtles-Fun-Animal-Books-For-Kids-With-Facts-amp-Incredible-Photos-Exploring-Our-Incredible-World-Series-1-by-Mark-Smith.pdf
    • http://loaminoo.linkpc.net/3091097098094099/Incredible-Snakes-Fun-Animal-Books-for-Kids-With-Facts-amp-Incredible-Photos-Exploring-Our-Incredible-World-Children-s-Book-Series-by-Mark-Smith.pdf
    • http://loaminoo.linkpc.net/1098095095092091/Tent-Life-in-Siberia-An-Incredible-Account-of-Siberian-Adventure-Travel-and-Survival-by-George-Kennan.pdf
    • http://loaminoo.linkpc.net/1098095093098090/Sufferings-in-Africa-The-Incredible-True-Story-of-a-Shipwreck-Enslavement-and-Survival-on-the-Sahara-by-James-Riley.pdf
    • http://loaminoo.linkpc.net/2095091092098093/Lost-in-Shangri-La-A-True-Story-of-Survival-Adventure-and-the-Most-Incredible-Rescue-Mission-of-World-War-II-by-Mitchell-Zuckoff.pdf
    • http://loaminoo.linkpc.net/3091099095094092/Financial-Armageddon-We-Are-in-a-Battle-for-our-Very-Survival-by-John-Hagee.pdf
    • http://loaminoo.linkpc.net/4099097095099095/New-Atlantis-Musicians-Battle-for-the-Survival-of-New-Orleans-by-John-Swenson.pdf
    • http://loaminoo.linkpc.net/2095090099092093/Pole-to-Pole-One-Man-20-Million-Steps-by-Pat-Farmer.pdf
    • http://loaminoo.linkpc.net/4090099093099099/Red-Jihad-Battle-for-South-Asia-by-Sami-Ahmad-Khan.pdf
    • http://loaminoo.linkpc.net/4093094092097091/The-North-Pole-Employee-Handbook-A-Guide-to-Policies-Rules-Regulations-and-Daily-Operations-for-the-Worker-at-North-Pole-Industries-by-James-Napoli.pdf
    • http://loaminoo.linkpc.net/3097091093095091/The-Ghost-Mountain-Boys-Their-Epic-March-and-the-Terrifying-Battle-for-New-Guinea--The-Forgotten-War-of-the-South-Pacific-by-James-Campbell.pdf
    • http://loaminoo.linkpc.net/4099092096096097/Doctor-Who-The-Tenth-Doctor-Adventures-10th-Doctor-Audio-Originals-by-Peter-Anghelides.pdf
    • http://loaminoo.linkpc.net/3090090093094095/Leslie-Nielsen-The-Naked-Truth-by-Leslie-Nielsen.pdf
    • http://loaminoo.linkpc.net/1099096098099091/Incredible-Turtles-Fun-Animal-Books-For-Kids-With-Fact

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