Malicious PDF — malware analysis report

Static analysis result for SHA-256 178d7900e5890761…

MALICIOUS

PDF

74.2 KB Created: 2020-08-19 16:27:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9ad84cf21a1398292f135fa3458890c9 SHA-1: ed25be144e126fa5bab7c0dd917938bb6509aa22 SHA-256: 178d7900e5890761c0b66168029449c34c8f26eabdc255bd689f71f3d043ef4e
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=bloc+quebecois+platform+2018+english', which is likely used to funnel victims to a phishing or malware site. The document body, though heavily obfuscated, also contains this URL, reinforcing its role in the attack.

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=bloc+quebecois+platform+2018+english
    • http://mojikumi.sciencelife.org/uploads/1/3/1/4/131453133/2179360.pdf
    • http://midedodex.mkgcleveland.com/uploads/1/3/0/7/130775248/1146249.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/4830/4797/files/atkins_snacks_nutrition_information.pdf
    • https://cdn.shopify.com/s/files/1/0432/4245/5195/files/rimadetedepiw.pdf
    • https://cdn.shopify.com/s/files/1/0452/0817/4743/files/android_chrome_proxy_server_settings.pdf
    • https://cdn.shopify.com/s/files/1/0436/6427/7657/files/45304417106.pdf
    • https://cdn.shopify.com/s/files/1/0428/6427/9718/files/lyman_reloading_data.pdf
    • https://cdn.shopify.com/s/files/1/0429/8424/3351/files/sejoxevajaporegiz.pdf
    • https://cdn.shopify.com/s/files/1/0437/2342/3912/files/an_allusion_a_day_volume_1.pdf
    • https://cdn.shopify.com/s/files/1/0433/9063/2101/files/43303172368.pdf
    • https://cdn.shopify.com/s/files/1/0439/4611/5230/files/35549057292.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_off0000d24d.bin
ec9955a2219323f50b14eb3f06d3667aa2b9d6d883bd5eb8291e503664e9a33d
pdf-font-stream PDF embedded font (sfnt) at offset 0xD24D 6264 bytes
font_01_sfnt_off0000e76d.bin
388538be4e4eda8edccb5bd8705883caf446c8b3b2489511a48e20f679f87895
pdf-font-stream PDF embedded font (sfnt) at offset 0xE76D 16504 bytes