Malicious PDF — malware analysis report

Static analysis result for SHA-256 30980165b7def800…

MALICIOUS

PDF

70.9 KB Created: 2020-08-17 18:23:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 229e8aa778f25c27ea35d91e55f5e674 SHA-1: de936d1178a6e46462a809c3c8da3276cac36334 SHA-256: 30980165b7def800ed6ac2b42dc2b4c0628fd98bc4ccd3578d00a8a27dea7da9
154 Risk Score

Malware Insights

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

The PDF contains a prominent link to 'ttraff.cc', identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'treatment guidelines for borderline personality disorder' and the malicious URL itself, suggesting a lure for phishing or malware delivery. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm or content stuffing technique to potentially obscure the malicious intent.

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=treatment+guidelines+for+borderline+personality+disorder
    • http://files.johnedwardwalsh.com/uploads/1/3/1/4/131406435/985bb1bd.pdf
    • http://files.carpetcleaningmontreal.org/uploads/1/3/0/7/130740517/5e57a5c9c71a98.pdf
    • http://files.kitaleigh.com/uploads/1/3/1/1/131164095/f467dad23febb.pdf
    • https://cdn.shopify.com/s/files/1/0431/0876/1766/files/kovovemagabob.pdf
    • https://cdn.shopify.com/s/files/1/0432/1257/0783/files/wubexugodamumijo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41718344304.pdf
    • https://cdn.shopify.com/s/files/1/0446/8441/1033/files/international_phonetic_alphabet_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0431/0132/3421/files/28219337982.pdf
    • https://cdn.shopify.com/s/files/1/0429/5848/7703/files/english_articles_test.pdf
    • https://cdn.shopify.com/s/files/1/0436/0654/0445/files/amana_dryer_parts_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/8713/4882/files/canon_pixma_ts9120_user_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/9241/8468/files/pinokuzoxej.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_off0000d36a.bin
114e1fdde7fffbef26a660d68bd698287b3acd4dfd50b76d273ea6d6df285f20
pdf-font-stream PDF embedded font (sfnt) at offset 0xD36A 5552 bytes
font_01_sfnt_off0000e630.bin
caf6a4bb72f465b18e588bdcc6909b1880ebcc0029c10f06dba7c9cff72e82d7
pdf-font-stream PDF embedded font (sfnt) at offset 0xE630 12288 bytes