Malicious PDF — malware analysis report

Static analysis result for SHA-256 b53a453dbc35d29d…

MALICIOUS

PDF

26.5 KB Created: 2020-03-18 17:38:35 +00:00 Authoring application: mPDF 5.7
MD5: 8cef47a54b83f52ed8e1e28355b5be28 SHA-1: e279ddb6e0c33215beb7cb8ec05312d91b1346d8 SHA-256: b53a453dbc35d29d54636bbaccd7785063ba2163d50a6b860309bcb568f6dfde
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. These URLs point to external resources, suggesting a link farm or a method to distribute malicious content. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains these same URLs, reinforcing their role in the attack. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

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://tanceubio.myhome.cx/13d33d03d73d23d8/Whatever-Mother-Says-A-True-Story-of-a-Mother-Madness-and-Murder-by-Wensley-Clarkson.pdf
    • http://tanceubio.myhome.cx/13d83d63d33d93d8/Such-Good-Boys-The-True-Story-of-a-Mother-Two-Sons-and-a-Horrifying-Murder-by-Tina-Dirmann.pdf
    • http://tanceubio.myhome.cx/33d33d83d43d83d8/A-Man-and-His-Mother-One-Man-s-Search-for-His-Biological-Mother-and-an-Understanding-of-His-Adoptive-Mother-by-Tim-Green.pdf
    • http://tanceubio.myhome.cx/23d93d63d23d43d7/Philomena-The-true-story-of-a-mother-and-the-son-she-had-to-give-away-by-Martin-Sixsmith.pdf
    • http://tanceubio.myhome.cx/43d83d23d13d63d1/The-Moon-Is-Broken-A-Mother-s-True-Story-by-Eleanor-Craig.pdf
    • http://tanceubio.myhome.cx/33d33d53d13d63d1/My-Mother-s-Secret-Based-on-a-True-Holocaust-Story-by-J-L-Witterick.pdf
    • http://tanceubio.myhome.cx/43d73d63d23d2/And-I-Don-t-Want-to-Live-This-Life-A-Mother-s-Story-of-Her-Daughter-s-Murder-by-Deborah-Spungen.pdf
    • http://tanceubio.myhome.cx/13d83d73d13d73d0/Jesus-Freaks-A-True-Story-of-Murder-and-Madness-on-the-Evangelical-Edge-by-Don-Lattin.pdf
    • http://tanceubio.myhome.cx/43d83d93d93d53d3/Mummy-Come-Home-The-True-Story-Of-A-Mother-Kidnapped-And-Torn-From-Her-Children-by-Oxana-Kalemi.pdf
    • http://tanceubio.myhome.cx/33d63d23d43d93d8/Love-You-to-Death-Darling-by-Wensley-Clarkson.pdf
    • http://tanceubio.myhome.cx/63d73d23d63d73d1/A-Stranger-in-the-Family-A-True-Story-of-Murder-Madness-and-Unconditional-Love-by-Steven-Naifeh.pdf
    • http://tanceubio.myhome.cx/33d13d73d03d13d4/Mama-Rose-s-Turn-The-True-Story-of-America-s-Most-Notorious-Stage-Mother-by-Carolyn-Quinn.pdf
    • http://tanceubio.myhome.cx/23d33d63d43d53d5/The-Magic-Castle-A-Mother-s-Harrowing-True-Story-of-Her-Adoptive-Son-s-Multiple-Personalities--and-the-Triumph-of-Healing-by-Carole-Smith.pdf
    • http://tanceubio.myhome.cx/23d13d53d43d43d8/The-Magic-Castle-A-Mother-s-Harrowing-True-Story-Of-Her-Adoptive-Son-s-Multiple-Personalities---And-The-Triumph-Of-Healing-by-Carole-Smith.pdf
    • http://tanceubio.myhome.cx/23d63d33d33d53d7/Foxcatcher-The-True-Story-of-My-Brother-s-Murder-John-du-Pont-s-Madness-and-the-Quest-for-Olympic-Gold-by-Mark-Schultz.pdf
    • http://tanceubio.myhome.cx/53d23d33d53d6/Mother-at-Seven-The-Shocking-True-Story-of-an-Armenian-Girl-s-Stolen-Childhood-and-Her-Family-s-Unspeakable-Cruel-Betrayal-by-Veronika-Gasparyan.pdf
    • http://tanceubio.myhome.cx/63d23d13d03d5/Mummy-s-Little-Helper-The-Heartrending-True-Story-of-a-Young-Girl-Secretly-Caring-for-Her-Severely-Disabled-Mother-by-Casey-Watson.pdf
    • http://tanceubio.myhome.cx/83d83d63d23d93d8/The-Singing-Nurse-A-Sequel-to-Mother-s-Madness-by-Waneta-Finster.pdf
    • http://tanceubio.myhome.cx/63d23d93d03d23d2/The-Mother-To-Mother-Postpartum-Depression-Support-Book-Real-Stories-from-Women-Who-Lived-Through-It-and-Recovered-by-Sandra-Poulin.pdf
    • http://tanceubio.myhome.cx/23d13d23d43d93d4/Mother-s-Heart-Mother-Earth-3-by-Alan-Tucker.pdf

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