Malicious PDF — malware analysis report

Static analysis result for SHA-256 63b6336b4a0d0975…

MALICIOUS

PDF

15.2 KB Created: 2020-03-18 21:07:21 +00:00 Authoring application: mPDF 5.7
MD5: 1fc534c740758f390df8fcc9b0827eae SHA-1: bd357736996b217846e8da32494ada0f768cc4ec SHA-256: 63b6336b4a0d097519e72ca19ef163471048467e90e635c55943272296ed9e9c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links pointing to external PDF files, a technique often used for SEO spam or to distribute malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the embedded links themselves serve as the primary attack vector, likely leading to further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9778

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://calistazz.myhome.cx/9865869864/The-House-of-Hades-The-Heroes-of-Olympus-4-by-Rick-Riordan.pdf
    • http://calistazz.myhome.cx/1863862861865869/The-House-of-Hades-Heroes-of-Olympus-4-by-Rick-Riordan.pdf
    • http://calistazz.myhome.cx/5865861863864866/La-Maison-d-Had-s-The-Heroes-of-Olympus-4-by-Rick-Riordan.pdf
    • http://calistazz.myhome.cx/7862868869866/The-Heroes-of-Olympus-Boxed-Set-The-Heroes-of-Olympus-1-5-by-Rick-Riordan.pdf
    • http://calistazz.myhome.cx/3869860867860864/The-Blood-of-Olympus-Heroes-of-Olympus-5-by-Rick-Riordan.pdf
    • http://calistazz.myhome.cx/3863865860865866/The-Son-of-Neptune-Heroes-of-Olympus-2-by-Rick-Riordan.pdf
    • http://calistazz.myhome.cx/3862867865867863/The-Son-of-Neptune-Heroes-of-Olympus-2-by-Rick-Riordan.pdf
    • http://calistazz.myhome.cx/3867860868865867/The-Son-of-Neptune-The-Heroes-of-Olympus-2-by-Rick-Riordan.pdf
    • http://calistazz.myhome.cx/2866865863869868/The-Son-of-Neptune-Heroes-of-Olympus-2-by-Rick-Riordan.pdf
    • http://calistazz.myhome.cx/8862861867864/The-Heroes-of-Olympus-The-Demigod-Diaries-by-Rick-Riordan.pdf
    • http://calistazz.myhome.cx/4866861867864865/The-Mark-of-Athena-The-Heroes-of-Olympus-3-by-Rick-Riordan.pdf
    • http://calistazz.myhome.cx/2863863869865866/The-Lost-Hero-The-Heroes-of-Olympus-1-by-Rick-Riordan.pdf
    • http://calistazz.myhome.cx/4867863869865869/The-Heroes-of-Olympus-Paperback-Boxed-Set-by-Rick-Riordan.pdf
    • http://calistazz.myhome.cx/1864860868/Percy-Jackson-s-Greek-Heroes-by-Rick-Riordan.pdf
    • http://calistazz.myhome.cx/1860869867868867867/Percy-Jackson-s-Greek-Heroes-by-Rick-Riordan.pdf
    • http://calistazz.myhome.cx/3864869868863/Percy-Jackson-and-the-Sword-of-Hades-Percy-Jackson-and-the-Olympians-4-5-by-Rick-Riordan.pdf
    • http://calistazz.myhome.cx/4869866869861864/Hound-of-Hades-Beasts-of-Olympus-2-by-Lucy-Coats.pdf
    • http://calistazz.myhome.cx/2861868863869862/The-Sea-of-Monsters-by-Rick-Riordan.pdf
    • http://calistazz.myhome.cx/4866863866868/The-Kane-Chronicles-1-3-by-Rick-Riordan.pdf
    • http://calistazz.myhome.cx/1867867862864864/The-Serpent-s-Shadow-by-Rick-Riordan.pdf

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