Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbac1b70f22c6d5d…

MALICIOUS

PDF

43.6 KB Created: 2020-09-17 06:25:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8a0e439c5cc00e73c39908ccc87b28ce SHA-1: 12c6431b0b49c5e7fe8f639cc9198da61b78df00 SHA-256: bbac1b70f22c6d5de66e53628aa12244337e1c9953bcb04eccea0578f869a37a
184 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one pointing to a known malicious redirector. The document body, though heavily corrupted, contains text related to 'Champion air compressors manual', likely a lure to encourage clicks on the embedded malicious link. No scripts were extracted from this sample.

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.me/wix?keyword=champion+air+compressors+manual In PDF document text
    • http://files.livesoftheladysaints.com/uploads/1/3/1/0/131070529/4372481.pdfIn PDF document text
    • http://files.lindsayphilpphotography.com/uploads/1/3/1/3/131398000/f4b4f18.pdfIn PDF document text
    • http://files.thefestivalband.com/uploads/1/3/1/4/131406701/005a3a52e.pdfIn PDF document text
    • http://kiwuz.mtpleasantherps.com/uploads/1/3/1/3/131379605/e0444ff.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://5b69c497-2fa8-4b4c-b9b4-297cfa79202d.filesusr.com/ugd/bb10c5_04ca0c6c573e46329649ab81338d98f1.pdf?index=trueIn PDF document text
    • https://c009c2e6-4607-4d39-8210-40cfe367b16a.filesusr.com/ugd/0a84ca_c62f5f9ebb4f40f491309aa7d0c35f2f.pdf?index=trueIn PDF document text
    • https://d352bad9-92bf-4976-9daf-c035958caab1.filesusr.com/ugd/f68081_eee2e90b3f874a24870023107f6c8ca8.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7106/9594/files/78878820008.pdfIn PDF document text
    • https://b3ca6696-cbb8-4f22-86c0-2fbf5c3be626.filesusr.com/ugd/b9801a_15ffef4fa79f4dafa85fa95da89e16d7.pdf?index=trueIn PDF document text
    • https://39bbb6e9-4b6a-47cc-aee5-5c0da1402d5a.filesusr.com/ugd/067ecb_37c6f4e1bd45440d8c9573fcd5504363.pdf?index=trueIn PDF document text
    • https://fff28304-8beb-4b78-a647-180a32bc5610.filesusr.com/ugd/9c66ff_a9926f56905948e5a644d48238efa874.pdf?index=trueIn PDF document text
    • https://d2404558-7001-47fd-989b-c880b2c4d8d8.filesusr.com/ugd/b148e5_e0945025289040ec9b7e57705b19630d.pdf?index=trueIn PDF document text
    • https://dc0771e7-8b40-4051-85df-f4a90e63e256.filesusr.com/ugd/2eedf1_113f7404a64c44aeaec758fb6de4b028.pdf?index=trueIn 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 2

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_off00006c58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C58 5076 bytes
SHA-256: c4d1cdd081f2be68ab7450aa08d71efdc6304f277e92c9c7401748eb0dbce234
font_01_sfnt_off00007d66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D66 10488 bytes
SHA-256: 740d99eed71a60d98ec30ee191e8dfcdfde8151680a008b4395e4a772216551b

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