Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9fd38343a8762cd…

MALICIOUS

PDF

41.4 KB Created: 2020-08-07 10:11:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c2642a06641bae4030d6469cf273816d SHA-1: 7053150921d886af6acffdec76801f50cb75d529 SHA-256: c9fd38343a8762cde9a6398d566b0ed5ae49ac56204d09caad83eaf429356596
150 Risk Score

Malware Insights

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

The PDF contains numerous links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'History of cadastral survey pdf' and includes the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a link farm further indicates malicious intent to drive traffic to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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 https://ttraff.com/pify?keyword=history+of+cadastral+survey+pdf
    • http://jiwoxugem.walescoastpath.info/uploads/1/3/2/8/132814930/nozigol.pdf
    • http://files.mypersonalgifter.com/uploads/1/3/0/7/130775306/zewuwixilafulaw.pdf
    • http://files.ninemillionbicycles.com/uploads/1/3/1/4/131453651/wowekilomerijulig.pdf
    • http://files.lezgetbaked.com/uploads/1/3/0/7/130775393/8953828.pdf
    • http://sogaginuk.blackwomensdayofmeditation.com/uploads/1/3/0/8/130814423/vasixoxapimew-podaralelun-zokimironixos-fezepewipese.pdf
    • https://cdn.shopify.com/s/files/1/0431/4886/9789/files/gumomag.pdf
    • https://cdn.shopify.com/s/files/1/0432/5713/5257/files/78871477330.pdf
    • https://cdn.shopify.com/s/files/1/0433/8899/3703/files/random_integer_javascript.pdf
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/1950712109.pdf
    • https://cdn.shopify.com/s/files/1/0431/2226/2178/files/vibarejifodes.pdf
    • https://cdn.shopify.com/s/files/1/0432/4841/8973/files/bachianinha_no_2_partitura.pdf
    • https://cdn.shopify.com/s/files/1/0433/9000/9502/files/86451701196.pdf
    • https://cdn.shopify.com/s/files/1/0434/7386/2821/files/100_squat_challenge_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0430/9726/0192/files/lusiwirumusi.pdf
    • https://cdn.shopify.com/s/files/1/0431/7279/0427/files/cities_by_population.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006334.bin
b2604aac8f400dfb5e12e5146a45695518ec8ba4243e729b57004b6d3e4f310e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6334 5272 bytes
font_01_sfnt_off00007540.bin
2ef4884827a1e907ea784759c4ad9dc03238fc2403c6288820126b5277301b3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7540 10348 bytes

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