Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e5835fb944d61b8…

MALICIOUS

PDF

15.8 KB Created: 2020-03-21 07:15:50 +00:00 Authoring application: mPDF 5.7
MD5: c800f67398a970cac3f17d35a3ff3530 SHA-1: c8bc03b65993240e6124f79923e350bcd23f1e48 SHA-256: 7e5835fb944d61b8972bbe316ef72a3622abc4b1976e1741ea4ebd7adac2a5bc
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO poisoning or to distribute further malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

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://lwoscmobook.myhome.cx/452495241524752415245/Alpha-Wolf-Alpha-Force-2-by-Linda-O-Johnston.pdf
    • http://lwoscmobook.myhome.cx/152485244524652425249/The-Alpha-Series-Boxed-Set-Books-1---3-Alpha-Kaden-Alpha-Grayson-and-Alpha-Jasper-by-Midika-Crane.pdf
    • http://lwoscmobook.myhome.cx/352475249524452435241/Hostage-Alpha-Force-4-by-Chris-Ryan.pdf
    • http://lwoscmobook.myhome.cx/352475249524452425243/Fault-Line-Alpha-Force-8-by-Chris-Ryan.pdf
    • http://lwoscmobook.myhome.cx/352475249524452435240/Desert-Pursuit-Alpha-Force-3-by-Chris-Ryan.pdf
    • http://lwoscmobook.myhome.cx/352435243524852455246/Accidental-Alpha-A-is-for-Alpha-Male-3-by-Laurel-Ulen-Curtis.pdf
    • http://lwoscmobook.myhome.cx/452495246524852445247/Alpha-Mine-Alpha-and-Omega-4-by-Aline-Hunter.pdf
    • http://lwoscmobook.myhome.cx/952465242524652435241/Alpha-Breeds-Alpha-Horde-1-by-Milana-Jacks.pdf
    • http://lwoscmobook.myhome.cx/152435245524552405240/Alpha-Unleashed-Alpha-Girl-5-by-Aileen-Erin.pdf
    • http://lwoscmobook.myhome.cx/152425248524052405241/Alpha-Divided-Alpha-Girl-3-by-Aileen-Erin.pdf
    • http://lwoscmobook.myhome.cx/352485243524052485249/The-Alpha-s-Hunger-The-Alpha-s-Doms-1-by-Renee-Rose.pdf
    • http://lwoscmobook.myhome.cx/152485244524552405247/The-Alpha-s-Debt-The-Alpha-s-Destiny-1-by-Donna-Flynn.pdf
    • http://lwoscmobook.myhome.cx/952465242524652405249/Alpha-s-War-Bad-Boy-Alphas-7-Bad-Alpha-Dads-by-Renee-Rose.pdf
    • http://lwoscmobook.myhome.cx/452465249524952415249/Christmas-Alpha-Alpha-1-by-Carole-Mortimer.pdf
    • http://lwoscmobook.myhome.cx/352475241524852415246/Being-Alpha-Alpha-Girl-7-by-Aileen-Erin.pdf
    • http://lwoscmobook.myhome.cx/452455242524152415242/The-Alpha-s-Toy-The-Alpha-Shifter-Collection-1-by-Sam-Crescent.pdf
    • http://lwoscmobook.myhome.cx/65249524152445245/Wolf-s-Fall-Alpha-Pack-6-by-J-D-Tyler.pdf
    • http://lwoscmobook.myhome.cx/252475247524452465248/Alpha-Wolf-Westervelt-Wolves-5-by-Rebecca-Royce.pdf
    • http://lwoscmobook.myhome.cx/252495249524552485246/Omega-s-Future-Mated-to-the-Alpha-8-by-Wolf-Specter.pdf
    • http://lwoscmobook.myhome.cx/452425243524752445243/Wolf-Fever-Alpha-Project-1-by-Milly-Taiden.pdf

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