Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fc17cbce14954aa…

MALICIOUS

PDF

60.0 KB Created: 2020-08-11 18:10:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9e610a23909352a35f9a646135b18514 SHA-1: c4af318ed2007c01b3e534120a0960ec4d87be47 SHA-256: 0fc17cbce14954aaffabf54fd9691f550bdf0785f7f13018f95e2a14a23ac22b
154 Risk Score

Malware Insights

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

The PDF contains a link disguised as an IKEA catalog download, which redirects to malicious infrastructure. This is supported by heuristics indicating a malicious redirector and a link farm, suggesting a phishing or scam attempt. Although no scripts were extracted, the embedded URL and the nature of the document body strongly indicate a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=ikea+katalog+2020+pdf+download
    • http://files.zanieducation.com/uploads/1/3/1/4/131437513/9d9337.pdf
    • http://fapatizog.fairmounthardwarelumber.com/uploads/1/3/1/4/131483281/060bf3.pdf
    • http://files.ilovedropmint.com/uploads/1/3/2/7/132740377/jiniw_nesaxezazufam_fojobibelu.pdf
    • http://kaduru.hardstyletablet.com/uploads/1/3/1/4/131407089/vipawamekutuwo-kafuketer-winobupanariba.pdf
    • http://files.jlbfitness.ca/uploads/1/3/1/3/131384573/sumag.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/7125/0335/files/vogigape.pdf
    • https://cdn.shopify.com/s/files/1/0430/0357/6481/files/27038506534.pdf
    • https://cdn.shopify.com/s/files/1/0432/0962/1664/files/1029861380.pdf
    • https://cdn.shopify.com/s/files/1/0428/8099/1388/files/85113745609.pdf
    • https://cdn.shopify.com/s/files/1/0449/7919/1966/files/89440906994.pdf
    • https://cdn.shopify.com/s/files/1/0430/9126/3649/files/98325930189.pdf
    • https://cdn.shopify.com/s/files/1/0435/4536/2591/files/clinical_trial_design.pdf
    • https://cdn.shopify.com/s/files/1/0440/4147/0117/files/26970509660.pdf
    • https://cdn.shopify.com/s/files/1/0434/5187/5481/files/54586299052.pdf
    • https://cdn.shopify.com/s/files/1/0432/6958/7104/files/libro_expedicion_botanica.pdf
    • https://cdn.shopify.com/s/files/1/0437/8561/7570/files/naxewuramiti.pdf
    • https://cdn.shopify.com/s/files/1/0440/5982/0182/files/nj_mvc_surcharge.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a397.bin
7403900f39bedf1fcf96a4f29476eff460e52ef98f50663890dc39c222059874		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA397 5304 bytes
font_01_sfnt_off0000b5d0.bin
47758aa223e0a596976541052b97abf4d0a2ca3ef1be5087d01b88cf92d75806		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB5D0 14232 bytes

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