Malicious PDF — malware analysis report

Static analysis result for SHA-256 70024dd3aba47825…

MALICIOUS

PDF

43.2 KB Created: 2020-08-17 12:31:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 24d108e9adfa3a654604e8a0111ba473 SHA-1: 01f5c7ae537e752b2aa46c47d4d70c47c72b1dd2 SHA-256: 70024dd3aba478251a4f0dd19cdc3ce295e497a9d6d3dd8a32c9207800349900
154 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to benign Shopify URLs, but one prominent link redirects to a known malicious infrastructure at 'ttraff.cc'. The document body, though heavily obfuscated, contains text that appears to be a lure for 'ps2 emulator for pc windows 10', suggesting a phishing or scam attempt. The presence of numerous external links, including a malicious redirector, indicates an attempt to drive traffic to potentially harmful 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=ps2+emulator++for+pc+windows+10
    • http://files.anthonymichaelscatering.com/uploads/1/3/2/6/132695472/f8f39.pdf
    • http://files.bombstract.com/uploads/1/3/0/8/130813899/2634081.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0440/5778/8568/files/lyapunov_stability_theorem.pdf
    • https://cdn.shopify.com/s/files/1/0429/9679/3503/files/ladune.pdf
    • https://cdn.shopify.com/s/files/1/0431/1125/2132/files/bobekalisulixarujavuv.pdf
    • https://cdn.shopify.com/s/files/1/0431/8248/9762/files/widuno.pdf
    • https://cdn.shopify.com/s/files/1/0435/6649/7960/files/full_hd_1080p_telugu_movies_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/6983/2357/files/57995091319.pdf
    • https://cdn.shopify.com/s/files/1/0433/7251/1386/files/counseling_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0434/4738/6264/files/18263718265.pdf
    • https://cdn.shopify.com/s/files/1/0433/8227/6257/files/fixajuroji.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_off00006ab3.bin
7745d5cc4ffd16eddbcc61ecdb2581444a73adcc96209bacf62d21c6634b5124
pdf-font-stream PDF embedded font (sfnt) at offset 0x6AB3 5720 bytes
font_01_sfnt_off00007e31.bin
3fc283c668c684cad488f88ac27b7643f3c19289d60e969ab22fb6d266876f38
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E31 10052 bytes