Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c53f00b96d26ae1…

MALICIOUS

PDF

39.7 KB Created: 2020-08-30 23:47:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e66b00b98b513a1cd54aea0783ff6b2 SHA-1: 2f9b9d2c290fc42e051d987951ab8a7a9b5b81ed SHA-256: 0c53f00b96d26ae1c7a74f99f7685c629052e7c35893cbafe3d1552856e12950
154 Risk Score

Malware Insights

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

The PDF contains embedded links and text that mimic a movie download lure. The primary link, 'https://ttraff.ru/wix?keyword=gods+of+egypt+download+in+hindi+480p', is flagged as a malicious redirector. The document also exhibits characteristics of a link farm, with numerous external PDF links, suggesting an attempt to generate traffic or distribute further malicious content. The ML classifier strongly indicated maliciousness.

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/wix?keyword=gods+of+egypt+download+in+hindi+480p
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0440/6856/9238/files/cameraman_gangatho_rambabu_dj_remix_songs.pdf
    • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/bemidopidi.pdf
    • https://cdn.shopify.com/s/files/1/0432/4976/2459/files/long_term_effects_of_alcohol_on_the_body.pdf
    • https://cdn.shopify.com/s/files/1/0435/1960/6936/files/46427670971.pdf
    • https://cdn.shopify.com/s/files/1/0436/2492/3298/files/ninugim.pdf
    • https://cdn.shopify.com/s/files/1/0430/3349/3658/files/wiruninugu.pdf
    • https://static.usrfiles.com/ugd/db93e9_493f01362d3b491485e17f6a80b89a3d.pdf
    • https://static.usrfiles.com/ugd/b8c837_fffc3add1a194ecb8ad92f23bd26b7d5.pdf
    • https://static.usrfiles.com/ugd/510a18_209b92f5df214f738cf3a30db6d8f4e0.pdf
    • https://cdn.shopify.com/s/files/1/0457/6899/9078/files/arya_ambekar_video_songs_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/0396/0731/files/youtube_still_watching.pdf
    • https://cdn.shopify.com/s/files/1/0435/5502/9141/files/39459581675.pdf
    • https://cdn.shopify.com/s/files/1/0431/2724/2906/files/gusisivifafovi.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_off00005a22.bin
4f31b21cee700f212a8d4ba9aee2f5b0923c1f0b996d2a4bf704b23b683f2c2a
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A22 5856 bytes
font_01_sfnt_off00006e2f.bin
dbb9fee1577ceefaaedbb095b3085dc83c8272ee239a886c67f086c353432305
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E2F 10528 bytes