Malicious PDF — malware analysis report

Static analysis result for SHA-256 77e381ab330a556c…

MALICIOUS

PDF

43.4 KB Created: 2020-08-05 15:53:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ae4f2b285632d9dd55fa889181c482f SHA-1: dc286f47dcc45909fb91db161a70a82406f540d0 SHA-256: 77e381ab330a556cb70dcf49f42196fdb53557629e353dd58c46d4d19c3d5333
154 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector, designed to lure victims into downloading further content. The document body, though heavily obfuscated, contains text related to 'Hebrew bible translation to english pdf' and references the wkhtmltopdf tool, suggesting a deceptive lure. The ML classifier strongly flagged this PDF as malicious.

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=hebrew+bible+translation+to+english+pdf
    • http://files.musica-mitchell.com/uploads/1/3/1/0/131071082/wutebolikusan.pdf
    • http://kubinavi.bigfootodyssey.us/uploads/1/3/1/4/131482975/zefutamidoru_fifamon_jagalogugokube.pdf
    • http://figed.skilletruf.net/uploads/1/3/1/3/131380845/fddbc.pdf
    • http://files.easel-lab-mondal.com/uploads/1/3/1/3/131380592/xokisenozu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/2076/3804/files/dadewikegilefogonibagap.pdf
    • https://cdn.shopify.com/s/files/1/0432/0657/4238/files/30300302164.pdf
    • https://cdn.shopify.com/s/files/1/0434/2523/5111/files/43853572731.pdf
    • https://cdn.shopify.com/s/files/1/0434/1907/4712/files/google_calendar_html.pdf
    • https://cdn.shopify.com/s/files/1/0432/3583/6072/files/nifavagazuguxefidew.pdf
    • https://cdn.shopify.com/s/files/1/0429/8987/9445/files/46644493858.pdf
    • https://cdn.shopify.com/s/files/1/0435/2799/5552/files/smite_deserter_penalty.pdf
    • https://cdn.shopify.com/s/files/1/0432/4681/3344/files/41580954801.pdf
    • https://cdn.shopify.com/s/files/1/0432/2243/3953/files/2038536984.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21800621301.pdf
    • https://cdn.shopify.com/s/files/1/0436/6788/2134/files/77052494564.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86556218032.pdf
    • https://cdn.shopify.com/s/files/1/0433/7631/2478/files/37803288914.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_off00006ad6.bin
b7109d30f09dcce04e030955a253c825adc17b376177f43977ce0b8e18bf1c28		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AD6 5496 bytes
font_01_sfnt_off00007d89.bin
d3d0d4512fbbe5c41087db84c28b4c8525731fbd15e477059b51fc2503f01975		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D89 10316 bytes

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