Malicious PDF — malware analysis report

Static analysis result for SHA-256 85690103d4eb6b28…

MALICIOUS

PDF

16.3 KB Created: 2019-05-05 15:41:15 +01:00 Authoring application: mPDF 5.7
MD5: 707099b7d923dba967a1d040946bf467 SHA-1: c24f00edc69922967460970183e49208543c5e59 SHA-256: 85690103d4eb6b284380aeba8ed9ebd2a55d0a336f41b4ddc36e9bac4858598a
60 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_SEO_LINK_FARM, indicating a mass of external links. While many of these links are marked as benign, the sheer volume and the nature of the heuristic suggest an attempt to manipulate search engine results or distribute content through a link farm. The document body is heavily obfuscated and unreadable, providing no further context on the specific lure. No scripts were extracted from this sample.

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/3096095096098094/The-Winter-Oak-Summer-Country-2-by-James-A-Hetley.pdf
    • http://loaminoo.linkpc.net/7099093094098092/Signatures-by-James-A-Hetley.pdf
    • http://loaminoo.linkpc.net/7099093094098093/Dragon-s-Bones-Stonefort-3-by-James-A-Hetley.pdf
    • http://loaminoo.linkpc.net/1096097092090098/To-Have-amp-To-Hold-a-Continuing-Montana-Love-Story-A-Country-James-Novel-Book-2-by-C-J-quot-Country-quot-James.pdf
    • http://loaminoo.linkpc.net/8097098096091096/The-Winter-Diary-of-a-Country-Rat-by-Peter-Firmin.pdf
    • http://loaminoo.linkpc.net/3095095091098094/A-Summer-in-the-Country-by-Marcia-Willett.pdf
    • http://loaminoo.linkpc.net/1090098098096092098/Hush-Little-Baby-A-Jefferson-Winter-Thriller-0-6-The-Jefferson-Winter-Chronicles-2-by-James-Carol.pdf
    • http://loaminoo.linkpc.net/3093098098099098/Summer-Lessons-Winter-Ball-2-by-Amy-Lane.pdf
    • http://loaminoo.linkpc.net/2095099098091090/The-Summer-Marked-The-Winter-People-2-by-Rebekah-L-Purdy.pdf
    • http://loaminoo.linkpc.net/6099092094095090/Winter-Notes-on-Summer-Impressions-by-Fyodor-Dostoyevsky.pdf
    • http://loaminoo.linkpc.net/6092092096092094/Plays-2-A-Summer-s-Day-Dream-of-Autumn-Winter-by-Jon-Fosse.pdf
    • http://loaminoo.linkpc.net/1099095097091092/The-Summer-Marked-The-Winter-People-2-by-Rebekah-L-Purdy.pdf
    • http://loaminoo.linkpc.net/1093098096096099/Summer-Dreams-Winter-Love-by-Mary-Francis-Shura.pdf
    • http://loaminoo.linkpc.net/4093097094097091/Brilliant-Dark-Summer-Snow-Winter-Sun-2-by-Heather-Leigh.pdf
    • http://loaminoo.linkpc.net/4094097091093099/Another-Country-by-James-Baldwin.pdf
    • http://loaminoo.linkpc.net/7099093094098095/In-Spite-of-Myself-by-Barry-Moore-with-Marti-Hetley.pdf
    • http://loaminoo.linkpc.net/5097091099099/Guenevere-Queen-of-the-Summer-Country-Guenevere-1-by-Rosalind-Miles.pdf
    • http://loaminoo.linkpc.net/2096097095091090/The-Best-of-James-Herriot-The-Favorite-Memories-of-a-Country-Vet-by-James-Herriot.pdf
    • http://loaminoo.linkpc.net/1097090094091093/Gone-Country-Rough-Riders-14-by-Lorelei-James.pdf
    • http://loaminoo.linkpc.net/2091097099097090/A-Thousand-Country-Roads-by-Robert-James-Waller.pdf
    • http://loaminoo.linkpc.net/3093098098099098/Summer-Lessons-Winter-Ball-2-by-Amy-Lane

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