Malicious PDF — malware analysis report

Static analysis result for SHA-256 01e567f3db5b075b…

MALICIOUS

PDF

44.2 KB Created: 2020-08-20 23:03:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2984a0e22829af496d63a5408e3427cb SHA-1: 72d83f4caa5bd52655b462dd0838a75021140357 SHA-256: 01e567f3db5b075be13ab374000176a28f806126feea6d5d09912af051d4c4d1
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with a critical heuristic firing indicating a link farm pointing to known malicious redirector infrastructure. The primary malicious URL identified is 'https://ttraff.com/pify?keyword=vox+chorus+platform', which likely serves as a gateway to further malicious content. The document body, though heavily obfuscated, also contains this URL and other Shopify links, suggesting a coordinated effort to distribute malicious content through SEO poisoning or phishing lures.

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.com/pify?keyword=vox+chorus+platform
    • http://files.campverdecommunitychurch.org/uploads/1/3/1/4/131406698/2767366.pdf
    • http://lunad.twooldmaresblanketservices.com/uploads/1/3/1/1/131164250/mokopebujonologaw.pdf
    • http://files.paulhamberger.com/uploads/1/3/0/7/130739524/jigesafedona.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0440/1784/4382/files/pesojojinizizelawagevif.pdf
    • https://cdn.shopify.com/s/files/1/0435/6974/1983/files/55950499373.pdf
    • https://cdn.shopify.com/s/files/1/0431/4556/0219/files/83260429478.pdf
    • https://cdn.shopify.com/s/files/1/0436/3993/1033/files/kesigiwonowinikezazogab.pdf
    • https://cdn.shopify.com/s/files/1/0432/3665/5259/files/2216260895.pdf
    • https://cdn.shopify.com/s/files/1/0449/1404/9191/files/shakespearean_sonnet_form.pdf
    • https://cdn.shopify.com/s/files/1/0433/3309/1480/files/mavamavekopadoxabupusaje.pdf
    • https://cdn.shopify.com/s/files/1/0431/8121/1810/files/58756545218.pdf
    • https://cdn.shopify.com/s/files/1/0432/0657/4238/files/jekedimibodefeka.pdf
    • https://cdn.shopify.com/s/files/1/0434/2589/0469/files/15252313685.pdf
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/rawolefajubozurujorimi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4837/8274/files/makanuvedubade.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006252.bin
ab2ae0ddab974e3c1ac5185e0d32892b1ffad2e24a68f32665c89fd8f01ce09c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6252 4900 bytes
font_01_sfnt_off000072fc.bin
18f9f9e9a68963c7c86a2b3e4717c7a0f004afef154c5a576e147b5358c4c5dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72FC 10348 bytes
font_02_sfnt_off0000963a.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x963A 4324 bytes

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