Malicious PDF — malware analysis report

Static analysis result for SHA-256 d838c5d06bf3ae3b…

MALICIOUS

PDF

56.6 KB Created: 2020-08-11 04:55:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79c339e02058d687b948de277bb0c103 SHA-1: 470b13f8d7207eaf262907a23aecceff56e7c469 SHA-256: d838c5d06bf3ae3b88b7d8cf4533863bb9d47857ec2db3b446af16561257407a
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=attitude+quotes+in+english+pdf'. This URL is likely used to redirect the user to a malicious site. The document also contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm or SEO manipulation tactic to disguise the malicious intent. No scripts were extracted from this sample.

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=attitude+quotes+in+english+pdf
    • http://files.davemounsey.com/uploads/1/3/2/6/132682335/rokoluzezatebenubuf.pdf
    • http://matabokog.hypertubes.com/uploads/1/3/1/6/131606289/2794730.pdf
    • http://files.roadrunnerkitchen.com/uploads/1/3/2/8/132814067/terot_daxax_dumidixam.pdf
    • https://cdn.shopify.com/s/files/1/0428/3006/9927/files/affirmative_tu_commands_worksheet_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/4492/0734/files/51707456330.pdf
    • https://cdn.shopify.com/s/files/1/0431/9199/2484/files/pseudomonas_aeruginosa_skin_infection.pdf
    • https://cdn.shopify.com/s/files/1/0433/7198/7098/files/pepe_minecraft_skin.pdf
    • https://cdn.shopify.com/s/files/1/0428/8489/0790/files/tipos_de_enlaces_del_carbono.pdf
    • https://cdn.shopify.com/s/files/1/0427/4916/5734/files/bexesunexepagifuj.pdf
    • https://cdn.shopify.com/s/files/1/0432/2869/2643/files/2312850555.pdf
    • https://cdn.shopify.com/s/files/1/0431/8802/7555/files/korn_thoughtless_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0437/2522/6133/files/29422846958.pdf
    • https://cdn.shopify.com/s/files/1/0427/4244/8295/files/90114785304.pdf
    • https://cdn.shopify.com/s/files/1/0440/7712/1686/files/5241510493.pdf
    • https://cdn.shopify.com/s/files/1/0428/4032/6300/files/pipikaxulib.pdf
    • https://cdn.shopify.com/s/files/1/0436/2135/1587/files/medical_certificate_for_neet.pdf
    • https://cdn.shopify.com/s/files/1/0430/9634/2695/files/80131832317.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_off00009776.bin
8816291a30d7da277adcb72583c00fdd426921c794f49af65c108fc11c9eab8f
pdf-font-stream PDF embedded font (sfnt) at offset 0x9776 5112 bytes
font_01_sfnt_off0000a8cd.bin
e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d
pdf-font-stream PDF embedded font (sfnt) at offset 0xA8CD 1800 bytes
font_02_sfnt_off0000b15b.bin
781331c8cf18a0cb474cca0729bae8c5c63043be4362d1a88f359fecab035ea4
pdf-font-stream PDF embedded font (sfnt) at offset 0xB15B 10468 bytes