Malicious PDF — malware analysis report

Static analysis result for SHA-256 19c51e06a0c79fc1…

MALICIOUS

PDF

50.8 KB Created: 2020-08-19 06:07:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5957d86a8da1ba9d0e8f9328c101955d SHA-1: a6c7f291eea2e4287680fe4accb30026871c1f5d SHA-256: 19c51e06a0c79fc1ed926db5ce6997c2952a11f27139234952d96af9337ab0f8
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to benign Shopify domains, but one critical link to a known malicious redirector at ttraff.cc. This redirector is likely used to funnel victims to malicious content. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the lure. The presence of numerous PDF links suggests an attempt to manipulate search engine results or distribute content widely, characteristic of SEO poisoning or link farm tactics.

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=nhtsa+driver+distraction+guidelines+pdf
    • http://files.ncwnavhda.org/uploads/1/3/1/3/131381693/8b633016.pdf
    • http://files.reveil-corporel.com/uploads/1/3/0/7/130739016/xivizode_jokojeka_gowosemabetora.pdf
    • http://files.landartfinegardening.com/uploads/1/3/0/7/130740211/ce6cb397ac.pdf
    • http://fukiri.ikinship.org/uploads/1/3/1/4/131407424/xubego_wovadabeti_zujuz_gosasevuxunoje.pdf
    • http://kasex.aurora-patina.com/uploads/1/3/1/4/131407267/b6d75f8a.pdf
    • https://cdn.shopify.com/s/files/1/0437/6051/7269/files/wutugafubiforevaz.pdf
    • https://cdn.shopify.com/s/files/1/0434/8998/4678/files/basel_1.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/ambito_social_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0429/5963/4591/files/curriculum_vitae_template_word_indonesia.pdf
    • https://cdn.shopify.com/s/files/1/0441/3331/8808/files/tilurop.pdf
    • https://cdn.shopify.com/s/files/1/0434/6278/7237/files/jezozavogisinepigesidap.pdf
    • https://cdn.shopify.com/s/files/1/0433/9240/1573/files/1429360064.pdf
    • https://cdn.shopify.com/s/files/1/0433/9426/9333/files/namutamolazenurepu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19189676900.pdf
    • https://cdn.shopify.com/s/files/1/0433/4118/5189/files/54067943841.pdf
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/longman_academic_writing_series_2_download.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_off00008872.bin
2f6cfcb1350d513e0dcb81683326b6020967fde9dee0bc7619c06e110d3adbf9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8872 5444 bytes
font_01_sfnt_off00009afd.bin
06b1a79ee7c63b74502f2bfb19e1264e2e5203a5839903bf720f69a1742f57da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9AFD 10264 bytes

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