Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcc02a063bdbc109…

MALICIOUS

PDF

40.7 KB Created: 2020-08-19 10:56:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8f0acd096ace09a45e66b95b5ccb6b3c SHA-1: c3c018fe8cfda2ae856418cfe0dcddbd3ae6f5bb SHA-256: dcc02a063bdbc1098cb1a005a1450a5b97e95413b7418c5b2221815731527f17
162 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=bluetooth++android+4.+0'. This indicates an attempt to redirect the user to a malicious site. Additionally, the PDF exhibits characteristics of a link farm, with numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the lure.

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.
  • 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/pify?keyword=bluetooth++android+4.+0 In PDF document text
    • http://files.hilgenamplifiers.net/uploads/1/3/2/6/132683000/wadisulurukivibe.pdfIn PDF document text
    • http://files.cleancurves.com/uploads/1/3/0/7/130739697/wavaje.pdfIn PDF document text
    • http://files.tannerpestcontrol.com/uploads/1/3/0/7/130776728/riboferexem_xolerojoke.pdfIn PDF document text
    • http://files.guadalupecardona.com/uploads/1/3/2/6/132696512/2789450.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/1/0438/3247/5798/files/worthy_is_the_lamb_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40369191557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3876/7266/files/tivakopakevigomarikiwoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8286/6072/files/25289611817.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/don_quijote_avellaneda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5411/8550/files/google_sheet_filter_function_date.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6450/0134/files/tigitipitepisotagekew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9059/8305/files/rexorogejolonapiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5770/9210/files/26274150448.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0473/1300/files/northwoods_canoe_paddle_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9095/9766/files/one_thousand_gifts_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8026/9462/files/7930362327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9224/5666/files/epa_sustainable_materials_management_report.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 5

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_off000062ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AB 5048 bytes
SHA-256: 35ea4efb07913f599a927128b416e99dfb5d1225afdb922661dab2b35939e267
font_01_sfnt_off000073ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73CA 9972 bytes
SHA-256: 97bf610da60d1618bc6e1e853efae610e33e59c99574b33a4a01aaafe1820038

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