Malicious PDF — malware analysis report

Static analysis result for SHA-256 023590e64d9bcf22…

MALICIOUS

PDF

50.8 KB Created: 2020-08-30 07:46:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 32141106ed989236804bd874d0943f5b SHA-1: d6835d9c30d0b752bee1a0f00760069ebda8afa3 SHA-256: 023590e64d9bcf229f7674aca0f7394dc8f3dd59f52eb5433c62525eff27c95d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a heuristic firing for a malicious redirector link and a link farm, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains text related to 'the beautiful poetry of donald trump' and a URL that likely serves as a lure. The embedded links, including one to a Shopify domain, are likely part of a broader campaign to redirect users to malicious sites.

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/wix?keyword=the+beautiful+poetry+of+donald+trump
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/0464/8859/files/fapemugivunasigawed.pdf
    • https://cdn.shopify.com/s/files/1/0431/6292/7263/files/dutuvamemumopavumu.pdf
    • https://cdn.shopify.com/s/files/1/0431/9815/2866/files/centro_de_masa_gravedad_y_centroide.pdf
    • https://cdn.shopify.com/s/files/1/0465/1492/9822/files/pozotaxawunima.pdf
    • https://cdn.shopify.com/s/files/1/0438/8644/4696/files/castrol_power_1_20w50.pdf
    • https://cdn.shopify.com/s/files/1/0429/7061/1861/files/78120273616.pdf
    • https://cdn.shopify.com/s/files/1/0431/6912/0413/files/66015476792.pdf
    • https://static.usrfiles.com/ugd/bf650e_bf28694991574def8a6ffc298cd6d1ca.pdf
    • https://static.usrfiles.com/ugd/9dda13_e413741da25648aebf0b2c2c08d9e994.pdf
    • https://static.usrfiles.com/ugd/b8c837_a48fdee1769d4996ab14cc2f69dff205.pdf
    • https://static.usrfiles.com/ugd/10b11f_737ac6415a9c4f93b081739cc4f3c299.pdf
    • https://static.usrfiles.com/ugd/3b0c81_2addc9bc52eb4179a7f7a93233e95874.pdf
    • https://cdn.shopify.com/s/files/1/0433/3735/1323/files/jokujomesof.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74251218784.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000895c.bin
d025647c4e800324980c20a23624a999074fbbdc1f7e6adc6af57ba3b1c12931
pdf-font-stream PDF embedded font (sfnt) at offset 0x895C 5296 bytes
font_01_sfnt_off00009b33.bin
b6fb587b5994d3816395029e67d0509db87e5a3bb7d05a6b7ab6b808a65269f8
pdf-font-stream PDF embedded font (sfnt) at offset 0x9B33 10292 bytes