Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c480af0ed23ac40…

MALICIOUS

PDF

45.0 KB Created: 2020-08-21 14:52:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e96aeb7fc53ca6e5d77c29f269c08e03 SHA-1: b2f17daa5fcfb795e3712a06e14b38632ff6c11a SHA-256: 6c480af0ed23ac4028febdff854c769ba210acd3874fbc52bfcec3cc5dcda934
154 Risk Score

Malware Insights

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

The PDF contains a lure for a game hack, which redirects to a malicious URL. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this redirection to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, suggesting a spam or phishing campaign. No scripts were extracted, but the presence of embedded URLs and the ML classifier output strongly indicate malicious intent.

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=beyblade+burst+game+apk+hack
    • http://rafun.pninax.com/uploads/1/3/1/4/131453960/jemivilefepurun_gutevikibaga.pdf
    • http://files.celinehavard.com/uploads/1/3/0/7/130739027/1236016.pdf
    • http://terig.elizabethwright.net/uploads/1/3/1/4/131409090/kotuwofu.pdf
    • http://warone.tulsaarcades.com/uploads/1/3/2/6/132681409/cb249817b.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/64274235385.pdf
    • https://cdn.shopify.com/s/files/1/0446/6976/3747/files/indoor_air_pollution_nptel.pdf
    • https://cdn.shopify.com/s/files/1/0430/7487/9642/files/present_continuous_tense_worksheet_for_grade_5.pdf
    • https://cdn.shopify.com/s/files/1/0437/4354/3447/files/astm_a106_gr_c.pdf
    • https://cdn.shopify.com/s/files/1/0427/9812/1119/files/define_immunization.pdf
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/jonado.pdf
    • https://cdn.shopify.com/s/files/1/0435/5158/8507/files/tarajuju.pdf
    • https://cdn.shopify.com/s/files/1/0431/7793/5004/files/cabinet_mantri_2020_list.pdf
    • https://cdn.shopify.com/s/files/1/0432/4130/8320/files/introduction_to_categorical_data_analysis_solution_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/5229/3541/files/6238617392.pdf
    • https://cdn.shopify.com/s/files/1/0430/2385/9873/files/table_of_contents_template_google_docs.pdf
    • https://cdn.shopify.com/s/files/1/0430/0177/4233/files/mukizikuxoxafoget.pdf
    • https://cdn.shopify.com/s/files/1/0431/8140/8420/files/77638951555.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000551c.bin
41c1024ceac3cf2078c181c345722f71f89ac58613acf8acf40cc82c1d9d6f4b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x551C 5460 bytes
font_01_sfnt_off000067af.bin
30de568f8aa73fc1b3dfa9f29359d3306d0d4b93b53ea060378d5704a6d9bbf2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67AF 17540 bytes
font_02_sfnt_off000098fd.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98FD 4324 bytes

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