Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed1dd8713aa5c22b…

MALICIOUS

PDF

42.6 KB Created: 2020-08-08 14:26:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 459cf318fedd14527e3e6b1b0f8d389a SHA-1: cd029cfc6b79337603bcc1f8c5373ecb7c9be4ca SHA-256: ed1dd8713aa5c22b1d78de8cfddf050f01ad26a357558d71b4ca9b7f6c4c2538
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=command+prompt+tricks+to+hack+wifi+pdf'. This URL is embedded within the document body, suggesting an attempt to trick the user into clicking it. The presence of a PDF link farm heuristic further indicates a malicious intent to distribute links, likely for phishing or malware delivery. No scripts were extracted, but the primary attack vector appears to be the malicious redirector.

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.com/pify?keyword=command+prompt+tricks+to+hack+wifi+pdf
    • http://files.christinechungflowers.com/uploads/1/3/1/6/131606789/lirusowanaxifo_sofopulu.pdf
    • http://files.adolfostreeservice.com/uploads/1/3/1/4/131454238/8ad5896.pdf
    • http://files.justuschildrenbooks.com/uploads/1/3/0/7/130775245/xuzupexadotodut.pdf
    • https://cdn.shopify.com/s/files/1/0437/4324/8545/files/instrumen_penilaian_akreditasi_puskesmas_terbaru.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dadimutixiwukigojubiw.pdf
    • https://cdn.shopify.com/s/files/1/0431/9094/3901/files/we_beat_the_street_book.pdf
    • https://cdn.shopify.com/s/files/1/0434/1917/3029/files/52691896760.pdf
    • https://cdn.shopify.com/s/files/1/0434/3712/9895/files/contemporary_strategy_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0440/7764/5989/files/wujiko.pdf
    • https://cdn.shopify.com/s/files/1/0431/7990/1085/files/96305127525.pdf
    • https://cdn.shopify.com/s/files/1/0432/5618/4992/files/bajawavorupinaraduseruwa.pdf
    • https://cdn.shopify.com/s/files/1/0431/9592/4640/files/potex.pdf
    • https://cdn.shopify.com/s/files/1/0430/6341/0845/files/2495473014.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/5561128363.pdf
    • https://cdn.shopify.com/s/files/1/0431/5162/2305/files/titenoximarugazuzofi.pdf
    • https://cdn.shopify.com/s/files/1/0438/2490/6397/files/walefezavapel.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_off00006287.bin
925a68ebc5bcd7c22a3c8846a4e0dd771f0a5bad6d9b5bfb0624c4858dd96497
pdf-font-stream PDF embedded font (sfnt) at offset 0x6287 5424 bytes
font_01_sfnt_off000074e0.bin
d60017b7a06c8ef15782f6ffbe9a4bfa62f2d35db0b3e1c34c8ffdcda23cf1c7
pdf-font-stream PDF embedded font (sfnt) at offset 0x74E0 12556 bytes