Malicious PDF — malware analysis report

Static analysis result for SHA-256 44902df1f6bb4a59…

MALICIOUS

PDF

26.2 KB Created: 2019-04-30 04:12:30 +01:00 Authoring application: mPDF 5.7
MD5: eeafae08db4f83ff46769d53e2b718c5 SHA-1: 239148ae678742e311ceeb8e524dbefca03a1880 SHA-256: 44902df1f6bb4a59d3a26b0b526b6aec55e26f94e52f90790eefab02adf3aae6
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF document contains a large number of embedded links pointing to external PDF files hosted on the domain xiixmcuin.linkpc.net. This technique, identified by the PDF_SEO_LINK_FARM heuristic, is often used to distribute malicious content or engage in SEO poisoning. While no scripts were extracted, the sheer volume of links and the ML classifier's high confidence suggest a malicious intent to redirect users to potentially harmful content.

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://xiixmcuin.linkpc.net/6200204205204/A-Story-of-Becoming-An-Inspiring-Fantasy-fable-by-Ayn-Cates-Sullivan.pdf
    • http://xiixmcuin.linkpc.net/8208204209206202/Legends-of-the-Grail-Stories-of-Celtic-Goddesses-by-Ayn-Cates-Sullivan.pdf
    • http://xiixmcuin.linkpc.net/4206208209206201/Haatchi-amp-Little-B-The-Inspiring-True-Story-of-One-Boy-and-His-Dog-by-Wendy-Holden.pdf
    • http://xiixmcuin.linkpc.net/5209206205206/Just-a-Boy-An-Inspiring-and-Heartwarming-True-Story-by-Casey-Watson.pdf
    • http://xiixmcuin.linkpc.net/3205208208201204/One-Dog-at-a-Time-Saving-the-Strays-of-Helmand---An-Inspiring-True-Story-by-Pen-Farthing.pdf
    • http://xiixmcuin.linkpc.net/3203200206202200/An-Inspiring-True-Story-Eighteen-Months-To-Live-by-Rachele-Baker.pdf
    • http://xiixmcuin.linkpc.net/4207207205208208/Samuel-The-Inspiring-Story-of-How-an-Amish-Boy-s-Tragedy-Brought-Two-Worlds-Together-by-Robert-J-Hastings.pdf
    • http://xiixmcuin.linkpc.net/4202206208203206/Hawk-An-Inspiring-Story-of-Success-at-the-Game-of-Life-and-Baseball-by-Andre-Dawson.pdf
    • http://xiixmcuin.linkpc.net/4203203201200200/Mother-to-the-Motherless-The-inspiring-true-story-of-one-woman-s-devotion-to-the-orphaned-children-of-Kenya-by-Mama-Zipporah.pdf
    • http://xiixmcuin.linkpc.net/3201203201208207/Early-Reading-Challenge-5-15-Books-in-1-Bedtime-story-Beginner-readers-Adventure-Animal-stories-Funny-free-story-prime-Rhymes-Fantasy-Education-by-Betty-J-Byers.pdf
    • http://xiixmcuin.linkpc.net/5209203203209206/Passport-to-Hiroshima-The-Unthinkable-Inspiring-Journey-of-a-Japanese-American-Family---Based-on-a-True-Story-by-Toshiharu-Kano.pdf
    • http://xiixmcuin.linkpc.net/1200200206204/Elephant-Company-The-Inspiring-Story-of-an-Unlikely-Hero-and-the-Animals-Who-Helped-Him-Save-Lives-in-World-War-II-by-Vicki-Constantine-Croke.pdf
    • http://xiixmcuin.linkpc.net/2201200208203201/Letter-from-Alabama-The-Inspiring-True-Story-of-Strangers-Who-Saved-a-Child-and-Changed-a-Family-Forever-by-David-L-Workman.pdf
    • http://xiixmcuin.linkpc.net/4204206203202206/Elephant-Company-The-Inspiring-Story-of-an-Unlikely-Hero-and-the-Animals-Who-Helped-Him-Save-Lives-in-World-War-II-by-Vicki-Constantine-Croke.pdf
    • http://xiixmcuin.linkpc.net/3201203206203208/Early-Reading-Challenge-2-15-Books-in-1-Bedtime-story-Adventure-Animal-stories-Teach-Values-Book-Funny-free-story-prime-Rhymes-Fantasy-Education-by-Betty-J-Byers.pdf
    • http://xiixmcuin.linkpc.net/3201206200208207/Alive-Day-A-Story-of-Love-and-Loyalty-by-Tom-Sullivan.pdf
    • http://xiixmcuin.linkpc.net/4208206203207/Twelve-Mighty-Orphans-The-Inspiring-True-Story-of-the-Mighty-Mites-Who-Ruled-Texas-Football-by-Jim-Dent.pdf
    • http://xiixmcuin.linkpc.net/1200207205205205/The-Great-Penguin-Rescue-40-000-Penguins-a-Devastating-Oil-Spill-and-the-Inspiring-Story-of-the-World-s-Largest-Animal-Rescue-by-Dyan-deNapoli.pdf
    • http://xiixmcuin.linkpc.net/9204202209/The-Curse-of-Oak-Island-The-Story-of-the-World-s-Longest-Treasure-Hunt-by-Randall-Sullivan.pdf
    • http://xiixmcuin.linkpc.net/9207209209205205/Sullivan-s-Justice-Carolyn-Sullivan-2-by-Nancy-Taylor-Rosenberg.pdf

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