Malicious PDF — malware analysis report

Static analysis result for SHA-256 206f237813bd8be3…

MALICIOUS

PDF

18.5 KB Created: 2019-05-06 16:49:12 +01:00 Authoring application: mPDF 5.7
MD5: f0ddf247fea88de4dd9f30c33afc242e SHA-1: 41949aabff1b7ea5043bbb4fdf912307d4b9eebc SHA-256: 206f237813bd8be30b64d6fee7d6e0e857f6edc51a445f2a9d83172dd02ec539
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, which is a strong indicator of malicious intent, likely for SEO spam or to distribute further malicious content. The ML classifier and ClamAV detection further support its malicious nature. The embedded URLs, while currently marked as benign, are part of the core functionality of this dropper-like PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7092973-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7092973-0
  • 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/1097092095093092/The-Rain-Wilds-Chronicles-Dragon-Keeper-Dragon-Haven-City-of-Dragons-and-Blood-of-Dragons-by-Robin-Hobb.pdf
    • http://loaminoo.linkpc.net/2097094094097096/Dragon-Keeper-Rain-Wilds-Chronicles-1-by-Robin-Hobb.pdf
    • http://loaminoo.linkpc.net/2090096094093094/Dragon-Haven-The-Rain-Wild-Chronicles-2-by-Robin-Hobb.pdf
    • http://loaminoo.linkpc.net/4097099092096091/Dragon-Haven-Rain-Wild-Chronicles-2-by-Robin-Hobb.pdf
    • http://loaminoo.linkpc.net/5090095090094098/Dragon-Haven-Rain-Wild-Chronicles-2-by-Robin-Hobb.pdf
    • http://loaminoo.linkpc.net/7090095092095091/Dragon-Keeper-Rain-Wild-Chronicles-1-by-Robin-Hobb.pdf
    • http://loaminoo.linkpc.net/3097098099098096/Dragon-Keeper-Rain-Wild-Chronicles-1-by-Robin-Hobb.pdf
    • http://loaminoo.linkpc.net/1090097096097/The-Dragon-Keeper-Rain-Wild-Chronicles-1-by-Robin-Hobb.pdf
    • http://loaminoo.linkpc.net/2093095099090094/Dragon-s-Blood-Pit-Dragons-1-by-Jane-Yolen.pdf
    • http://loaminoo.linkpc.net/4093094098093097/Dragon-s-Blood-Cruentus-Dragons-1-by-Brynn-Paulin.pdf
    • http://loaminoo.linkpc.net/2099099097090092/Pregnant-for-the-Dragon-Dragons-of-Lake-City-3-by-Kellan-Larkin.pdf
    • http://loaminoo.linkpc.net/5094090090096/Novels-By-Robin-Hobb-including-Assassin-s-Apprentice-Royal-Assassin-Assassin-s-Quest-Fool-s-Errand-novel-The-Golden-Fool-Shaman-s-Crossing-Fool-s-Fate-Ship-Of-Magic-Forest-Mage-Renegade-s-Magic-Dragon-Keeper-hobb-Novel-Ship-Of-Destiny-by-Hephaestus-Books.pdf
    • http://loaminoo.linkpc.net/2097099092094/Dragon-s-Blood-Pit-Dragon-Chronicles-1-by-Jane-Yolen.pdf
    • http://loaminoo.linkpc.net/3097094092096092/A-Tale-of-Two-Dragons-Dragon-Kin-0-2-by-G-A-Aiken.pdf
    • http://loaminoo.linkpc.net/4094096093091099/Dragon-Killer-Reckoning-of-Dragons-1-by-Rob-May.pdf
    • http://loaminoo.linkpc.net/5098097099097090/A-Mate-for-the-Dragon-Lost-Dragons-1-by-Zoe-Chant.pdf
    • http://loaminoo.linkpc.net/2099095094092090/Dragon-Song-Dragons-and-Visions-2-by-Jim-Murdoch.pdf
    • http://loaminoo.linkpc.net/4099096097090091/Dragon-Rebirth-Dragons-in-the-Mist-2-by-B-J-Whittington.pdf
    • http://loaminoo.linkpc.net/4094098096097091/Dragon-s-Lair-Wind-Dragons-MC-1-by-Chantal-Fernando.pdf
    • http://loaminoo.linkpc.net/4093094098098090/Descended-from-Dragons-Moonlight-Dragon-1-by-Tricia-Owens.pdf