Malicious PDF — malware analysis report

Static analysis result for SHA-256 007cd279632a6864…

MALICIOUS

PDF

78.9 KB Created: 2020-09-12 01:14:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fa426ea34122f39bcd571bfaf9bd155b SHA-1: 3628c627bdeb3a8135ebf0ba71c4283f72ccdada SHA-256: 007cd279632a6864ecd55dc528cd63c3b6022f03908cb21929d97c79675db186
182 Risk Score

Malware Insights

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

This PDF file contains a malicious redirector link disguised as a software download for 'Bliss os for pc 32 bit'. The link, https://ttraff.cc/wix?keyword=bliss+os++for+pc+32+bit, is hosted on known malicious infrastructure. The document body, though heavily obfuscated, contains the same URL, indicating an attempt to trick the user into clicking it. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=bliss+os++for+pc+32+bit 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/1/0460/0853/3151/files/santhosh_subramaniam_full_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/0587/7915/files/muguboweg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6798/1474/files/ukp_akreditasi_puskesmas.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/87d215_f49d8e7991f845759fb052312b67b7e5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/1ee69b_033392c0f58642bfba376666652c7309.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_28410656406e4946852adc44fe522506.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_c8720849d8cc43cc9628223bf32455db.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e56fe2_837f71c8288c41b6964b2168480d9fb0.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7543/6705/files/free_evite_invitation_templates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8239/9390/files/cccp_codec_pack_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8863/4263/files/jilenekisegatopitirezexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/6316/8415/files/simple_bookkeeping_template_uk.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cbac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBAC 3340 bytes
SHA-256: c21fb3766ae2a7698a5e95ba3761283a5c1f919e20d94cc64a1255b4c8f15e19
font_01_sfnt_off0000d7b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7B6 5284 bytes
SHA-256: 217d8ff8155cb2c3164b8cf94585ea093cf4f655f74f62baaedcac0a1e2caf17
font_02_sfnt_off0000e9c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9C5 14976 bytes
SHA-256: 4b4220a872460e1664d66a8c1eba82e65b7f6702cab628b5f6aa33457ef5931e
font_03_sfnt_off00011863.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11863 16392 bytes
SHA-256: e66abfbeddc1d19d92dcb25e98d0a5acfcfed5afa902c0cdbe1883ebc60d8997

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