Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca302f58520c10fe…

MALICIOUS

PDF

40.0 KB Created: 2020-08-17 15:55:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e765ce864e14fd2b5a6b374717ada186 SHA-1: 49bfb8f66a317d048f79b1f8aed46aa9166c867d SHA-256: ca302f58520c10fef18e205c7ee34ead443deddbae89c20d8b08e52b240174e4
254 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Cain and Abel application' and includes the malicious URL. The presence of a password-protected archive lure and a callback phishing lure further suggests a social engineering attempt. The primary attack vector appears to be directing the user to malicious infrastructure via embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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.ru/pify?keyword=cain+and+abel+application In PDF document text
    • http://files.tutorwithalice.com/uploads/1/3/1/4/131438449/zamudomabudifu_xewubegozor_gibojona.pdfIn PDF document text
    • http://files.foreverlivingdeliciously.com/uploads/1/3/0/9/130969218/tojurowojopefor.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69262577592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3260/7900/files/24795574888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6496/5782/files/lixulanemibegetusi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5430/0327/files/betiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7167/6314/files/8027251935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/lesser_banishing_ritual_of_the_hexagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/67641838088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/xojuzusanulogerikela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/4236/0744/files/what_is_reliability_centered_maintenance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0868/7269/files/duzetakulixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3471/4017/files/tratamiento_psicologico_para_el_bullying.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9819/3566/files/75419825110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7990/1096/files/pink_panther_theme.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F8C 4836 bytes
SHA-256: 6aabf305339131ad959e9509ac9e34a49777ea9bca666f1d11797fe7813d871d
font_01_sfnt_off00007004.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7004 10420 bytes
SHA-256: 14373d1333af34a2f20a24b964f0b50e8b5c06258c55211bd127218380a1879e