Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e186e8e5bf12114…

MALICIOUS

PDF

17.9 KB Created: 2019-04-30 23:05:40 +01:00 Authoring application: mPDF 5.7
MD5: f72b942bf35d5fe1cad10f08c46ccc58 SHA-1: 8f169396567a6e68562857f2f31fbd30caeffb53 SHA-256: 9e186e8e5bf12114e8859bc7910b0439208ef7161ef41c9aadb9ad97d135cd56
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, constituting a link farm. This is a common technique for distributing malicious content or for SEO manipulation to drive traffic to malicious sites. The ML classifier strongly supports the malicious verdict. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

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/2095093096094093/Target-Lock-Amanda-Garrett-4-by-James-H-Cobb.pdf
    • http://loaminoo.linkpc.net/9095094097093095/Duell-in-fremden-Gew-ssern-Amanda-Garrett-5-by-James-H-Cobb.pdf
    • http://loaminoo.linkpc.net/3093095098092/Listening-to-Our-Grandmothers-Stories-The-Bloomfield-Academy-for-Chickasaw-Females-1852-1949-by-Amanda-J-Cobb-Greetham.pdf
    • http://loaminoo.linkpc.net/2096093094094094/The-Arctic-Event-Covert-One-7-by-James-H-Cobb.pdf
    • http://loaminoo.linkpc.net/3097091096093096/Away-Down-South-A-History-of-Southern-Identity-by-James-C-Cobb.pdf
    • http://loaminoo.linkpc.net/9093092093099094/Next-of-Kin-Detective-Buddy-Lock-Mysteries-1-by-James-Tucker.pdf
    • http://loaminoo.linkpc.net/8099095091092/A-Women-s-Murder-Club-Omnibus-4th-of-July-The-5th-Horseman-The-6th-Target-by-James-Patterson.pdf
    • http://loaminoo.linkpc.net/7098091096098099/The-Accidental-Victim-JFK-Lee-Harvey-Oswald-and-the-Real-Target-in-Dallas-by-James-Reston-Jr-.pdf
    • http://loaminoo.linkpc.net/3098090092097090/Target-Tokyo-Jimmy-Doolittle-and-the-Raid-That-Avenged-Pearl-Harbor-by-James-M-Scott.pdf
    • http://loaminoo.linkpc.net/2098091091091090/The-Garrett-Files-Garrett-P-I-1-3-by-Glen-Cook.pdf
    • http://loaminoo.linkpc.net/2099096099099097/Lock-amp-Key-Lock-amp-Key-1-by-Cat-Porter.pdf
    • http://loaminoo.linkpc.net/1097094090/Lock-amp-Mori-Lock-amp-Mori-1-by-Heather-W-Petty.pdf
    • http://loaminoo.linkpc.net/5090095092099096/Another-Mother-by-Amanda-James.pdf
    • http://loaminoo.linkpc.net/1090092090090090094/On-the-Many-Deaths-of-Amanda-Palmer-And-the-Many-Crimes-of-Tobias-James-by-Rohan-Kriwaczek.pdf
    • http://loaminoo.linkpc.net/9091099095/Target-Alex-Cross-Alex-Cross-26-by-James-Patterson.pdf
    • http://loaminoo.linkpc.net/4090092092091092/Amanda-in-Alberta-The-Writing-on-the-Stone-Amanda-Travels-4-by-Darlene-Foster.pdf
    • http://loaminoo.linkpc.net/7093095090090090/Shattered-The-Amanda-Project-3-by-Amanda-Valentino.pdf
    • http://loaminoo.linkpc.net/4099098090094096/Paris-and-Elsewhere-by-Richard-Cobb.pdf
    • http://loaminoo.linkpc.net/3097095096095099/Witch-Cat-and-Cobb-by-J-K-Pendragon.pdf
    • http://loaminoo.linkpc.net/3095092092095097/Cobb-Island-by-Blayne-Cooper.pdf

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