Malicious PDF — malware analysis report

Static analysis result for SHA-256 a60e8e1808cd0067…

MALICIOUS

PDF

48.6 KB Created: 2020-08-11 23:12:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9a45cd0b9f626bc0b5609ad4be1a116a SHA-1: ea2b63f8a447fc1748a325b0fa88730d9ecfee74 SHA-256: a60e8e1808cd0067e6c38160dfd28ebdb1c182747c11eb22368b00cb6c518cf9
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The ML classifier also flagged this PDF with high confidence. The presence of a link farm suggests an attempt to manipulate search engine results or redirect users to malicious content. No scripts were extracted, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=surah+al+mulk+terjemahan+pdf
    • http://files.nysfcja.org/uploads/1/3/0/9/130969489/mobut_gibonezofidexe_giwukozux_welitedisatis.pdf
    • http://files.housesandcondosph.com/uploads/1/3/1/4/131452949/sasowowulu.pdf
    • http://files.impact7generations.com/uploads/1/3/0/8/130814205/33da7e34812559d.pdf
    • https://cdn.shopify.com/s/files/1/0431/8176/8872/files/pcsx2_cheats_pnach.pdf
    • https://cdn.shopify.com/s/files/1/0431/3976/0285/files/air_pollution_mini_project.pdf
    • https://cdn.shopify.com/s/files/1/0449/5346/9083/files/ankush_lamba_100_puzzle.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/mami_romeo_santos.pdf
    • https://cdn.shopify.com/s/files/1/0428/4717/4822/files/ladodufigivalunalomo.pdf
    • https://cdn.shopify.com/s/files/1/0428/2089/4886/files/lenetosaxezalugi.pdf
    • https://cdn.shopify.com/s/files/1/0431/9880/8224/files/zudekeg.pdf
    • https://cdn.shopify.com/s/files/1/0431/8127/7345/files/senanuvazanomunozuza.pdf
    • https://cdn.shopify.com/s/files/1/0438/1055/4016/files/5213386549.pdf
    • https://cdn.shopify.com/s/files/1/0431/4460/9943/files/bipufa.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_off00007257.bin
6b3a96e013f865138b25f64b3fcbf81794dbb9c57b20c7e1ac89102416f6900a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7257 5348 bytes
font_01_sfnt_off0000846b.bin
6d5456107f27c83c60b673251e24e5875b20395a0e4ee0905cc5cfc21a13aca6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x846B 15432 bytes

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