Malicious PDF — malware analysis report

Static analysis result for SHA-256 12a9464224e3c084…

MALICIOUS

PDF

60.8 KB Created: 2020-08-14 23:51:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 29c48c2236daeed5d43c7ca2971df05a SHA-1: 46f8890778886da4ad9c2e2d876a4cd581d04bc7 SHA-256: 12a9464224e3c084ee51126af1a654aa7d8d7d5e10c234fc81fb3cb3a3250fa9
154 Risk Score

Malware Insights

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

The PDF contains embedded links that point to known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=hwy+10+traffic+report'. The document body, though heavily obfuscated, appears to contain text related to traffic reports, suggesting a lure. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=hwy+10+traffic+report
    • http://files.thetorrancecarpetcleaners.com/uploads/1/3/1/1/131163634/mafifuwovazuvez.pdf
    • http://files.funinstruments1.com/uploads/1/3/2/6/132695663/rotijegomububa_gikesitu.pdf
    • http://tipava.goldenstatesurrogacy.com/uploads/1/3/1/4/131453416/tokalerowimeguge.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0434/5584/0409/files/pivupovuruxadibewasemi.pdf
    • https://cdn.shopify.com/s/files/1/0427/4018/7303/files/97284324255.pdf
    • https://cdn.shopify.com/s/files/1/0433/9623/5415/files/catalyst_2960_switch_software_configuration_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/5481/7690/files/automobile_bill_of_sale_texas.pdf
    • https://cdn.shopify.com/s/files/1/0431/7236/4445/files/dutilutazitavufipetaxin.pdf
    • https://cdn.shopify.com/s/files/1/0434/9198/3512/files/40957742444.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vemuvuferakodumi.pdf
    • https://cdn.shopify.com/s/files/1/0446/6851/8563/files/85318293324.pdf
    • https://cdn.shopify.com/s/files/1/0428/3141/3404/files/kixiperalexelijopizumudi.pdf
    • https://cdn.shopify.com/s/files/1/0430/0665/6666/files/37925232860.pdf
    • https://cdn.shopify.com/s/files/1/0432/8118/6971/files/27017518311.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b14c.bin
45066c5859dd4cb357bfec2fb4d56f380c520dfaade4e146132b6f52a2c7d39c
pdf-font-stream PDF embedded font (sfnt) at offset 0xB14C 5148 bytes
font_01_sfnt_off0000c2f0.bin
d3f8f361c024c75e760dbc14b0426271bce0368854d3bddb81b355028ed40daa
pdf-font-stream PDF embedded font (sfnt) at offset 0xC2F0 10352 bytes