Malicious PDF — malware analysis report

Static analysis result for SHA-256 183ba47732d73913…

MALICIOUS

PDF

38.9 KB Authoring application: pstoedit
MD5: 49c3f45e0b78e98db98cf90b0a0986dc SHA-1: 5f4437ba2690e2704edff0d8146f65e9202e451e SHA-256: 183ba47732d73913ca8433c3f7fe61e448934993fbb30262ce7e683752932498
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. The PDF_SEO_LINK_FARM heuristic fired, revealing a large number of embedded external URLs. These URLs are likely used to redirect users to malicious sites or to manipulate search engine rankings, a common tactic in phishing or spam campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://mirandasanderson.com.au/uploads/1/3/0/3/130323547/9436974.pdf
    • http://admiralsigns.us/uploads/1/3/0/5/130539923/vigemusowupopef.pdf
    • http://theknowledgewarriors.com/uploads/1/3/0/5/130544539/da363899b.pdf
    • http://iloveacorns.com/uploads/1/3/0/2/130289222/42f3862d4b9d8c5.pdf
    • http://dravivadawn.com/uploads/1/3/0/5/130588332/1780a06e7c933.pdf
    • https://nogotitafa.weebly.com/uploads/1/3/0/5/130590296/xiwamip-risegogezewez-fomutizaxiki-roxusatutuj.pdf
    • http://adaptable.com.au/uploads/1/3/0/6/130620340/zujubokevej_pelokopinadigim_wozuziv_muniguvabu.pdf
    • http://musings-rants.com/uploads/1/3/0/5/130588907/130588907.html#bergland+bay+bar+snow+report

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011dd.bin
0acd85f8010dc486b17d13f851da6c27731acc7397bd23746d5796ea869250e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11DD 8724 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.