Malicious PDF — malware analysis report

Static analysis result for SHA-256 65767c06631dabcd…

MALICIOUS

PDF

44.8 KB Created: 2020-08-07 16:20:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: eccbf705b3096334f8e34862dbd81d7c SHA-1: e4148a65ed5b68c4c3768391fa0da5c0f35fad4f SHA-256: 65767c06631dabcd957682faa19627f89e998bb01c465437468d76f795cb9da0
154 Risk Score

Malware Insights

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

The PDF contains a link disguised as a financial plan download, which redirects to a known malicious infrastructure. The ML classifier strongly indicated maliciousness, and the presence of numerous external PDF links suggests a link farm designed to distribute malicious content. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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.ru/pify?keyword=hdfc+life+sanchay+plus+plan+pdf+download
    • http://files.studio25nh.com/uploads/1/3/1/8/131871721/kaxepotenipi_mavubafixigat_fapese.pdf
    • http://files.nevenann.com/uploads/1/3/1/3/131398145/2159058.pdf
    • http://files.counsellingpsychologist.services/uploads/1/3/1/8/131872055/gozoteb-baserubosesofuj.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0431/4421/6730/files/14544361062.pdf
    • https://cdn.shopify.com/s/files/1/0437/6284/3797/files/peanut_butter_making_business_plan.pdf
    • https://cdn.shopify.com/s/files/1/0435/3484/4059/files/car_vocabulary_english.pdf
    • https://cdn.shopify.com/s/files/1/0438/3480/2333/files/58153727067.pdf
    • https://cdn.shopify.com/s/files/1/0437/7201/8845/files/47688741190.pdf
    • https://cdn.shopify.com/s/files/1/0435/3576/1576/files/sort_tuple_python.pdf
    • https://cdn.shopify.com/s/files/1/0432/1669/9553/files/4863429247.pdf
    • https://cdn.shopify.com/s/files/1/0435/6843/1265/files/88137736611.pdf
    • https://cdn.shopify.com/s/files/1/0427/8275/2935/files/widagizupubuvop.pdf
    • https://cdn.shopify.com/s/files/1/0431/5955/2155/files/the_seven_spiritual_laws_of_yoga_by_deepak_chopra.pdf
    • https://cdn.shopify.com/s/files/1/0427/7754/2823/files/60768607099.pdf
    • https://cdn.shopify.com/s/files/1/0430/6498/3701/files/engineering_calculus_1.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_off000063e8.bin
578fabf9bf4a1ee0a6c4871b7065183dea56c6ef34356ee731ab1b6a56086a01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63E8 5104 bytes
font_01_sfnt_off0000754d.bin
fb534bedfc8c078e58dcf98c9e275b1b0a1b485545a1ace545b0ed87b1eaf385		 pdf-font-stream PDF embedded font (sfnt) at offset 0x754D 10148 bytes
font_02_sfnt_off00009800.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9800 4324 bytes

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