Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e5049e27d827ea7…

MALICIOUS

PDF

43.8 KB Created: 2020-08-05 09:02:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a11f2e61da1a10e7734cb36a4ea59fbd SHA-1: f89c1186586931fbfe3345de649e73fba4ee0283 SHA-256: 3e5049e27d827ea7c9b548e22dd7984509f577dadded06f84e314cc2d5594779
150 Risk Score

Malware Insights

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

The PDF contains numerous links, including one identified as a malicious redirector pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains text related to a 'pmi acp agile certified practitioner' exam guide, suggesting a lure. The presence of a malicious redirector and a link farm indicates an attempt 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.cc/pify?keyword=pmi+acp+agile+certified+practitioner+all+in+one+exam+guide+pdf
    • http://rojegebok.rareearthsmiths.com/uploads/1/3/1/3/131398020/tenotowiluxug_luranetela_kibugijegax.pdf
    • http://files.southernwildproducts.com/uploads/1/3/0/8/130814594/pupewas.pdf
    • http://files.hslialgebra2.com/uploads/1/3/1/4/131407952/1522869.pdf
    • http://files.scdowning.com/uploads/1/3/1/6/131607712/454c9.pdf
    • http://files.moondogsbaseball.com/uploads/1/3/0/7/130775980/9727997.pdf
    • https://cdn.shopify.com/s/files/1/0433/5150/7094/files/6114024340.pdf
    • https://cdn.shopify.com/s/files/1/0437/7886/7351/files/4046271049.pdf
    • https://cdn.shopify.com/s/files/1/0431/7492/0347/files/titazazitesujozurazanod.pdf
    • https://cdn.shopify.com/s/files/1/0432/7096/3350/files/dijebudusulowaxif.pdf
    • https://cdn.shopify.com/s/files/1/0432/0506/6907/files/fabufarixodi.pdf
    • https://cdn.shopify.com/s/files/1/0429/6101/0842/files/38818922975.pdf
    • https://cdn.shopify.com/s/files/1/0434/7097/9237/files/dimigosuwetuxe.pdf
    • https://cdn.shopify.com/s/files/1/0432/2938/0767/files/mastering_the_mix_levels_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/4997/5959/files/63731996189.pdf
    • https://cdn.shopify.com/s/files/1/0428/6165/8279/files/53573087297.pdf
    • https://cdn.shopify.com/s/files/1/0430/9526/1348/files/article_grammar_exercises.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_off00005f89.bin
d3deda57c0ec31736c0e0473083b0c2cc8517f651179a7c597d55a1f7541f230
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F89 5368 bytes
font_01_sfnt_off000071bc.bin
311f93235ecfb6ce071f8b4344c71ce8707b01bf9957be95c4d81ba8faf79b71
pdf-font-stream PDF embedded font (sfnt) at offset 0x71BC 15768 bytes