Malicious PDF — malware analysis report

Static analysis result for SHA-256 318724c8b67e9678…

MALICIOUS

PDF

37.9 KB Authoring application: Poppler-utils
MD5: 4f450eac1be9e5577355812a46f98702 SHA-1: 1dc7bb4c03b2d17f4a16bbab3be80c657d46296f SHA-256: 318724c8b67e9678f38620135837ee046527ecb25ad92871d9b5f0e42897b878
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to other PDF files hosted on various domains, suggesting a coordinated effort to distribute content or manipulate search engine results. The ClamAV detection further confirms its malicious nature, classifying it as Pdf.Phishing.TtraffRobotInstall. No scripts were extracted from this sample, and the document body was heavily obfuscated and truncated, preventing a more detailed analysis of its specific lure.

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://www.djmmarketplace.com/uploads/1/3/0/6/130639256/jogopimipew_juvalapafifer.pdf
    • http://northforklife.net/uploads/1/3/0/5/130547069/pamimuwa.pdf
    • http://blockchainambassador.ca/uploads/1/3/0/7/130776249/kazivumedagaf.pdf
    • http://conquercoffee.com/uploads/1/3/0/6/130620268/739361.pdf
    • http://seoboards.com/uploads/1/3/0/4/130435772/guvimigiwozetisisi.pdf
    • http://trmkeepclean.com/uploads/1/3/0/7/130775803/fadof-jomirof-vugoruk.pdf
    • http://guiadoipva.com/uploads/1/3/0/6/130639740/3387754.pdf
    • http://hostmaster.fosterimages.co.uk/uploads/1/3/0/5/130590140/9880703.pdf
    • http://naplesbesthairsalon.com/uploads/1/3/0/8/130814706/d028f137b91f.pdf
    • http://mikaimtrading.co.za/uploads/1/3/0/6/130620672/mowutunapo.pdf
    • http://miamiautodeal.com/uploads/1/3/0/5/130543386/rorosoxi.pdf
    • http://aplusvictoryproducts.com/uploads/1/3/0/4/130435914/nowipujuz-pugetexanu.pdf
    • http://firstollie.net/uploads/1/3/0/3/130379081/ac518118b.pdf
    • http://whatthehellokitty.com/uploads/1/3/0/2/130291689/6757157.pdf
    • http://www.embracehospicehouse.com/uploads/1/3/0/5/130590177/8d0f1db1932bc.pdf
    • http://whiskeypeak.com/uploads/1/3/0/5/130590738/4434051.pdf
    • http://aomenjinshayulechengguanwang.br3h.com/uploads/1/3/0/2/130273980/130273980.html#biotic+factors+in+desert+ecosystem

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003942.bin
7d8cf9daf34cb1f6acfe8cff0e4dbcd7fd54a68331fb89e49e4cef7333e7e764		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3942 7624 bytes

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