Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea353d60314939f0…

MALICIOUS

PDF

37.9 KB Created: 2020-08-18 16:33:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dc57562282f914269fd2ced1592d6002 SHA-1: 28abbce011aef22b56222303828197ca892b9b81 SHA-256: ea353d60314939f0b52ce76e3721f0939b27e793ed231d644a765852ae8638a2
152 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'los angeles chargers injury report' and the URL 'https://ttraff.cc/pify?keyword=los+angeles+chargers+injury+report', suggesting a lure to external content. The presence of a large number of external PDF links further supports the attack pattern of a link farm designed to redirect users to malicious sites.

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=los+angeles+chargers+injury+report
    • http://files.ukyorthoresidency.com/uploads/1/3/1/3/131383247/wamixuxovad.pdf
    • http://files.samhoustonbap.org/uploads/1/3/0/7/130739016/jebiza.pdf
    • http://wisujerak.healingmission.org/uploads/1/3/1/3/131379211/xivigefo-vulal-zelat.pdf
    • http://files.robertlloydartny.com/uploads/1/3/1/4/131453365/974a8b07f.pdf
    • http://files.gswlifenetwork.com/uploads/1/3/2/8/132815359/8302462.pdf
    • https://cdn.shopify.com/s/files/1/0439/1036/5339/files/87821352140.pdf
    • https://cdn.shopify.com/s/files/1/0432/2174/5823/files/muxefuvewuxudebo.pdf
    • https://cdn.shopify.com/s/files/1/0435/5106/4228/files/speco_asphalt_plant.pdf
    • https://cdn.shopify.com/s/files/1/0433/9240/1573/files/kikuzemu.pdf
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/davoxozajosovonoboden.pdf
    • https://cdn.shopify.com/s/files/1/0430/4335/6825/files/89214840187.pdf
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/bodaxibuwozuwuvizajetafo.pdf
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/diablo_2_hd_mod.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23281911610.pdf
    • https://cdn.shopify.com/s/files/1/0433/3823/6062/files/kuposigazepulokot.pdf
    • https://cdn.shopify.com/s/files/1/0438/2123/6384/files/nonugaralanukitawukil.pdf
    • https://cdn.shopify.com/s/files/1/0434/5777/3718/files/pipeline_corrosion_and_cathodic_protection.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000054f5.bin
e901d1fdb4a789afcb0edc34d88b01280e8b86eb3e5085566fcabf8b6a2fd51a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54F5 5316 bytes
font_01_sfnt_off0000670e.bin
cfd679f92e8914fe04bb15705da427e2a115c0409692237a9305a0d7e31992e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x670E 10364 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.