Malicious PDF — malware analysis report

Static analysis result for SHA-256 063d4ef6cc041b84…

MALICIOUS

PDF

60.1 KB Created: 2020-08-23 05:19:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 497d6293148e8ecfbeb0d460d9d4d719 SHA-1: be140e705a814a5cedf684b02db4102ada255e76 SHA-256: 063d4ef6cc041b8421a047b85a96e045635651b968551bc3a027046078398b92
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. This indicates an attempt to obscure the final destination and likely distribute malware or conduct phishing. The document body and metadata suggest it is masquerading as a technical document to lure victims.

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.com/pify?keyword=designing+data+intensive+applications+pdf+2017 In PDF document text
    • http://xijut.friendsofeverbloom.com/uploads/1/3/2/6/132695578/50c50cb8e1.pdfIn PDF document text
    • http://files.vrugginks.com/uploads/1/3/0/9/130969683/nogamorejamarana.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/1/0434/1914/0252/files/delegation_of_financial_power_rules_1978_schedule_v.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8326/8257/files/79403515619.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5590/6973/files/gowabotanega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0765/5579/files/55863462684.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83260340608.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9103/3250/files/49986928345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6665/3858/files/37147191841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4433/8854/files/doweketifiwub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/646255477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8205/5842/files/game_c._a._t._s_mod_apk.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 3

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008954.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8954 10688 bytes
SHA-256: 4b32fb2d0535119e8116b2b510ccd83c94e8f225a553d12bc45a97a96658d0f9
font_01_sfnt_off0000ace6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACE6 5692 bytes
SHA-256: fb286dd1a715a097b8d37f23c91849549a5e3584aee27e811a8ff1af2facb444
font_02_sfnt_off0000c07b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC07B 10088 bytes
SHA-256: 6785f21368f5cec9c82e051a3037a5dc6358ce2d7d925e7ed609d438f8ddca54

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