Malicious PDF — malware analysis report

Static analysis result for SHA-256 202ad71988c66b0e…

MALICIOUS

PDF

39.7 KB Created: 2020-09-01 04:22:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ed8b296157e36debb7b02050216b89e SHA-1: 0177866fa830ef1fbcf7b0c65915302ec4ea3542 SHA-256: 202ad71988c66b0e65eff133c9ff57e1c5617598448f8bf19d5796506c6a102c
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'asrb application form 2019' and the malicious URL, suggesting a phishing lure. The presence of a link farm further indicates malicious intent to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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=asrb+application+form+2019 In 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/76957488457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5035/3318/files/18419046050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5005/0460/files/sodukajexepudad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4449/4760/files/57697595541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/33374625424.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_554642fdee644750b28daa423bbe1cac.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_d22b7b1c7ebd4c4f93e4430c7519d839.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/bb13a2_7f1c0a28883a4a4ea16d8286d62bcf2f.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/c1615c_253e08c094f34bca98ee4f792b588cd8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/8084/3163/files/classic_wow_guide_for_new_players.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zetelonum.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C83 5772 bytes
SHA-256: 28d83964fed2e50d649e2883324277129e22d9fd7430851ad4cd8e035a665242
font_01_sfnt_off00007018.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7018 10120 bytes
SHA-256: da92a64c72e10fa01bd140e891a6238a6723d3e27ed2417e32241e8f8104c6f5

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