Malicious PDF — malware analysis report

Static analysis result for SHA-256 323ae84c70658419…

MALICIOUS

PDF

37.7 KB Created: 2020-08-18 16:45:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 30b9da232350faf9d7fc2cebd5de94f1 SHA-1: 6b0f8d7d47d4e2d387f4e91928a3df1f36d317ab SHA-256: 323ae84c70658419a816ad8e2e88bdb97c74bcd0cfb944c76dc16e0f0a33c27f
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=filmywap+2016+movies++bollywood'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external PDF links, many hosted on Shopify. The presence of a 'download button' heuristic further supports the lure-based attack pattern. No scripts were extracted, but the embedded URLs and link farm structure suggest a phishing or social engineering attempt to redirect users to malicious content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=filmywap+2016+movies++bollywood
    • http://files.whittykitty.com/uploads/1/3/1/4/131407102/5179718.pdf
    • http://files.sunflowerblingbox1.com/uploads/1/3/1/8/131856392/tupegura.pdf
    • http://files.deedeemorrison.com/uploads/1/3/1/3/131384173/e5fceaa.pdf
    • https://cdn.shopify.com/s/files/1/0434/8978/8069/files/genasezikaroguzuberidex.pdf
    • https://cdn.shopify.com/s/files/1/0438/2742/9533/files/a_b_c_2_formula.pdf
    • https://cdn.shopify.com/s/files/1/0428/8125/3535/files/90285683468.pdf
    • https://cdn.shopify.com/s/files/1/0434/4496/1436/files/tomojanumejonufolav.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lejozusuxawunulimedobina.pdf
    • https://cdn.shopify.com/s/files/1/0428/3046/3142/files/dynmap_config_folder.pdf
    • https://cdn.shopify.com/s/files/1/0428/2076/3804/files/tomasolex.pdf
    • https://cdn.shopify.com/s/files/1/0433/3872/7589/files/fojavafup.pdf
    • https://cdn.shopify.com/s/files/1/0427/7751/0055/files/erasmus_mundus_programme_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/5534/1977/files/48866211357.pdf
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/the_legend_1993.pdf
    • https://cdn.shopify.com/s/files/1/0431/6289/4498/files/gejolaguwo.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_off00005565.bin
05275073e054f1519fa4060a97a3d6cc14c93781664fa0e4881cb3eb889a64a2
pdf-font-stream PDF embedded font (sfnt) at offset 0x5565 5840 bytes
font_01_sfnt_off00006948.bin
c52472eb93bdd12a29675bc6415d126a7489a3a0df5920302d14154c5fc3fb76
pdf-font-stream PDF embedded font (sfnt) at offset 0x6948 9544 bytes