Malicious PDF — malware analysis report

Static analysis result for SHA-256 10c94d18e4e0722f…

MALICIOUS

PDF

45.8 KB Authoring application: PDF Studio
MD5: 0ab2221f680dd8696ebd5756d08eda8a SHA-1: 714dc4ab7a0fdde91274bdfc9947c2ab7030bcae SHA-256: 10c94d18e4e0722fe7f8909ac4843bcc79ff528081ecb067e88f27e8e670b20d
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a large number of embedded links to external PDF files hosted on various domains, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a tactic to manipulate search engine results or to distribute further malicious content. The ClamAV detection and ML classifier further confirm the malicious nature of the file, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://ancestryseekers.com/uploads/1/3/0/6/130605347/9b7f0f62087417.pdf
    • http://amazingateam.pink/uploads/1/3/0/6/130604950/702000.pdf
    • http://sistereducator.com/uploads/1/3/0/7/130776343/8738067.pdf
    • http://www.bluedogblooms.com/uploads/1/3/0/3/130323167/lonogazonukadedepof.pdf
    • http://journeyoflisaswift.com/uploads/1/3/0/6/130639580/7730833.pdf
    • http://catchmeabroad.com/uploads/1/3/0/8/130874349/8d20108.pdf
    • http://pcfencingcenter.com/uploads/1/3/0/5/130550884/zatozafap.pdf
    • http://ssynchronizedchaos.com/uploads/1/3/0/6/130620300/kigov_ranurefelon.pdf
    • http://solerconsulting.com/uploads/1/3/0/7/130739755/dexukuxinebob.pdf
    • http://www.coingrandma.com/uploads/1/3/0/3/130379821/kuxawepakufotokasu.pdf
    • http://charlottesvilleostomysupport.com/uploads/1/3/0/4/130488542/pogowavo.pdf
    • http://charliesblackpudding.com/uploads/1/3/0/5/130551524/a220c.pdf
    • http://getmedeal.com/uploads/1/3/0/2/130288514/vatijoxupasok.pdf
    • http://seattlebarterexchange.com/uploads/1/3/0/7/130740129/dufafi-mativu.pdf
    • http://motors-auto.com/uploads/1/3/0/8/130813785/nesaxutonurepizilanu.pdf
    • http://www.qcdoodles.com/uploads/1/3/0/4/130475936/sezabodevamojas.pdf
    • http://www.blossom.ch/uploads/1/3/0/3/130313434/35e03e329a9.pdf
    • http://our-rainforest.com/uploads/1/3/0/4/130483697/1f0f5b675fb04.pdf
    • http://www.blau-logistics.com/uploads/1/3/0/6/130605204/9762155.pdf
    • http://mokilart.com/uploads/1/3/0/4/130491179/1709562.pdf
    • http://sweetmaplecafe.co/uploads/1/3/0/4/130478261/juwojilos.pdf
    • http://albireovineyards.com/uploads/1/3/0/6/130604627/nadinulop.pdf
    • http://mytrippytreatzllc.com/uploads/1/3/0/4/130477719/rolavigafobam.pdf
    • http://abarakatonline.com/uploads/1/3/0/6/130621516/69825.pdf
    • http://artm.services/uploads/1/3/0/2/130272648/5f03346e.pdf
    • http://baomahuiyulechengkaihu.br3h.com/uploads/1/3/0/2/130270898/130270898.html#bilingual+aphasia+test+assessment

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d58.bin
c7602b5727760cb63161c2d6f073c362ce5f1f5d2d344e20117317e0a2ea153c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D58 8980 bytes

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