Malicious PDF — malware analysis report

Static analysis result for SHA-256 01959849a8fddf3f…

MALICIOUS

PDF

41.7 KB Created: 2020-08-09 20:26:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 260edbe5978fe35a9e68dd94c8356d71 SHA-1: b46d898ebb09a2f5eb6841ea88c444dc982c2ac4 SHA-256: 01959849a8fddf3f176ac2c1c3c7b309d5d342c5475a15419b8ce3d0b5e48c97
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a lure for an advance-fee scam, presenting itself as a 'handicapped parking sign pdf' to entice users to click a link. This link, 'https://ttraff.cc/pify?keyword=handicapped+parking+sign+pdf', redirects to known malicious infrastructure. The document also hosts a large number of other PDF links, likely for SEO manipulation or to spread the malicious content further.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=handicapped+parking+sign+pdf
    • http://kokaji.newqueervisions.com/uploads/1/3/0/8/130873851/rokixasajurumajoxa.pdf
    • http://files.bizexpertz.org/uploads/1/3/1/0/131071167/5815260.pdf
    • http://files.catarellaphoto.com/uploads/1/3/2/6/132681887/116e0ca8b2f74.pdf
    • http://files.mortgagesmart.solutions/uploads/1/3/1/3/131398477/guwafebexogekik.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/7259/3832/files/7295983271.pdf
    • https://cdn.shopify.com/s/files/1/0430/4414/3253/files/form_ssa_561.pdf
    • https://cdn.shopify.com/s/files/1/0433/9286/0327/files/stihl_fs_250_repair_manual.pdf
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/canteen_management_system_project_in_c.pdf
    • https://cdn.shopify.com/s/files/1/0433/8358/6974/files/nevisuweronavub.pdf
    • https://cdn.shopify.com/s/files/1/0436/2128/6050/files/0_60_times_motorcycles.pdf
    • https://cdn.shopify.com/s/files/1/0434/5266/1912/files/67447454326.pdf
    • https://cdn.shopify.com/s/files/1/0437/3633/4501/files/21200589044.pdf
    • https://cdn.shopify.com/s/files/1/0433/0097/8853/files/pugeda.pdf
    • https://cdn.shopify.com/s/files/1/0432/4042/3587/files/blockchain_technology_in_healthcare_the_revolution_starts_here.pdf
    • https://cdn.shopify.com/s/files/1/0431/6450/0122/files/wujupidamexusun.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_off00006459.bin
f00d211e63e6128a804d89c1d1b9116f24dbb57206f649b5a4ae3c7d870b2366		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6459 5316 bytes
font_01_sfnt_off00007683.bin
69149dd3a8f2681a6c073e3d000011a83d1a5c867e7128615e394e16eec1389e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7683 10364 bytes

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