Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddf02cc26e50d781…

MALICIOUS

PDF

39.9 KB Created: 2020-08-17 07:42:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d249581518b91b53664554dcb0327dd0 SHA-1: 5c2b4ef33e418204441c69d1983a55d46ba1819c SHA-256: ddf02cc26e50d7818f50bf5bc3d89179789afd91f838daafc0a4eacb38c247e2
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to benign Shopify domains, but one critical link to `https://ttraff.cc/pify?keyword=bal+ganesh+full+movie++filmywap` which is flagged as a malicious redirector. This suggests the document is part of an SEO poisoning or link farm campaign designed to drive traffic to malicious sites. No scripts were extracted from this sample.

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=bal+ganesh+full+movie++filmywap
    • http://files.rhythmsofawoman.com/uploads/1/3/1/8/131871625/poxexakoluwemamo.pdf
    • https://cdn.shopify.com/s/files/1/0431/7410/1149/files/cadena_alimentaria_nutricional.pdf
    • https://cdn.shopify.com/s/files/1/0431/5286/7494/files/bacillus_thuringiensis_caracteristicas.pdf
    • https://cdn.shopify.com/s/files/1/0435/6754/6527/files/darolarofojulid.pdf
    • https://cdn.shopify.com/s/files/1/0432/2118/8763/files/probability_mass_function.pdf
    • https://cdn.shopify.com/s/files/1/0432/9930/7673/files/80991645044.pdf
    • https://cdn.shopify.com/s/files/1/0436/9265/4745/files/jirojegabirawa.pdf
    • https://cdn.shopify.com/s/files/1/0437/1942/6198/files/bupolubemovu.pdf
    • https://cdn.shopify.com/s/files/1/0435/7731/1395/files/phenol_red_msds.pdf
    • https://cdn.shopify.com/s/files/1/0432/2718/5316/files/gucci_gucci_kreayshawn_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0434/7599/2728/files/wetufo.pdf
    • https://cdn.shopify.com/s/files/1/0432/6142/7876/files/27274562331.pdf
    • https://cdn.shopify.com/s/files/1/0435/6790/6979/files/85721378709.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000048d0.bin
d0f49e1270101907f61c378699181fc476816eb534aeb9a042bca5c96e878b01
pdf-font-stream PDF embedded font (sfnt) at offset 0x48D0 5520 bytes
font_01_sfnt_off00005b95.bin
a9ac3c43ce65d383d16d8b440903f76fe64514dec6a5e518d8b4eda319cceb92
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B95 9816 bytes
font_02_sfnt_off00007d73.bin
c41fc46809d2260d2d1a821cef6bb00dae560fdbad380da94a93f29d012df54e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D73 16164 bytes