Malicious PDF — malware analysis report

Static analysis result for SHA-256 92a4052020f9ae3a…

MALICIOUS

PDF

42.8 KB Created: 2020-07-31 21:54:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 456361b6788a44ba94bf9f5264ffab28 SHA-1: 0544e290ad70faee106996efecd876daf2d7e649 SHA-256: 92a4052020f9ae3aae10c15814ad92e47ff01229f39514c8cf44832fa9e51903
120 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to Shopify domains hosting PDF files, suggesting a link farm or SEO poisoning tactic. One critical heuristic firing indicates a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=ccnp+switch+lab+manual+2nd+edition+pdf', which is designed to lure users into downloading or visiting malicious content. The document body also contains this URL, reinforcing the social engineering aspect. No scripts were extracted, limiting the analysis of direct payload execution.

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=ccnp+switch+lab+manual+2nd+edition+pdf
    • http://files.youngchaelee.com/uploads/1/3/0/8/130813357/5563595.pdf
    • http://files.cafedatalkalamode.com/uploads/1/3/1/4/131483550/3bbbf7.pdf
    • http://files.everydayarteveryday.com/uploads/1/3/1/4/131453256/revitev-nivisejikunogub-genadukawizumor-kevabuwobax.pdf
    • http://files.uniquedezhines.com/uploads/1/3/1/3/131379306/3fe8d256e04f.pdf
    • http://files.emact.org/uploads/1/3/1/6/131636914/forafarip-bumebanufu-dexowopigeki-jimerosomepevin.pdf
    • https://cdn.shopify.com/s/files/1/0431/5820/8674/files/pipekifagoxinudot.pdf
    • https://cdn.shopify.com/s/files/1/0433/2794/6904/files/46220545606.pdf
    • https://cdn.shopify.com/s/files/1/0433/9322/0758/files/pewixerinubazulo.pdf
    • https://cdn.shopify.com/s/files/1/0432/7741/8656/files/tinow.pdf
    • https://cdn.shopify.com/s/files/1/0433/5419/4085/files/fetoxulakam.pdf
    • https://cdn.shopify.com/s/files/1/0430/0177/4233/files/sibunu.pdf
    • https://cdn.shopify.com/s/files/1/0430/0891/7657/files/41731655068.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/82595467958.pdf
    • https://cdn.shopify.com/s/files/1/0431/7623/1063/files/44409003010.pdf
    • https://cdn.shopify.com/s/files/1/0433/9200/8357/files/78701217754.pdf
    • https://cdn.shopify.com/s/files/1/0432/8262/8766/files/kozamakasetiwiluza.pdf
    • https://cdn.shopify.com/s/files/1/0427/6482/8839/files/degeromupipezemufof.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ce6.bin
c097d990871a5bc7ba4ecd8a0bd0e03abda5763d7770a5e8ec43dad9ab52993d
pdf-font-stream PDF embedded font (sfnt) at offset 0x5CE6 5568 bytes
font_01_sfnt_off00006fb1.bin
921d49b404325696850d81d2d5e41e59c881c64110ae2a11b4c58daf614ee977
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB1 9336 bytes
font_02_sfnt_off00008fac.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x8FAC 4324 bytes