Malicious PDF — malware analysis report

Static analysis result for SHA-256 0068a942d14c2cab…

MALICIOUS

PDF

59.1 KB Created: 2020-08-19 20:49:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b89b0d8ce19afae671866e1a4c3761f7 SHA-1: d1e0667d58293338fdc967de59c3119fbe72ab9a SHA-256: 0068a942d14c2cab592983ada09dad495752c73654323002d822c120611dd014
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

This PDF file contains multiple embedded URLs, with a critical heuristic identifying a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=pawan+raja+bhojpuri+film'. The document body, though heavily obfuscated, contains text referencing the same film title, suggesting a lure to a malicious site. The presence of a large number of external PDF links further indicates a link farm or redirection strategy.

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.com/pify?keyword=pawan+raja+bhojpuri+film
    • http://files.grundmeyerleadersearch.com/uploads/1/3/1/6/131636990/sifixoj_jutixepipi_bevasagipaxuja_sivosukisozi.pdf
    • http://porikadam.hopeawaitsministries.com/uploads/1/3/0/7/130776106/9581037.pdf
    • http://timeweg.meacorsigns.com/uploads/1/3/1/4/131407406/xubiwozezaxesub.pdf
    • http://bakijin.carolynfordart.com/uploads/1/3/1/4/131483200/lemaparu_rasajusebikete_zuwixabetum.pdf
    • http://files.theartssociety-pewseyvale.com/uploads/1/3/1/8/131871730/3886738.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/6728/5410/files/vulun.pdf
    • https://cdn.shopify.com/s/files/1/0430/2422/0321/files/57952015719.pdf
    • https://cdn.shopify.com/s/files/1/0435/0767/9397/files/26587806436.pdf
    • https://cdn.shopify.com/s/files/1/0431/9756/3037/files/lotovomopo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6109/2245/files/13085617163.pdf
    • https://cdn.shopify.com/s/files/1/0440/6778/2821/files/judevapolu.pdf
    • https://cdn.shopify.com/s/files/1/0430/7746/8311/files/genafudafurukerofozoj.pdf
    • https://cdn.shopify.com/s/files/1/0429/8250/6647/files/damujevezajanoxukavexot.pdf
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/adaalat_episode_3gp_video.pdf
    • https://cdn.shopify.com/s/files/1/0433/6533/5208/files/lemitobaxojotadefubaninaf.pdf
    • https://cdn.shopify.com/s/files/1/0432/7348/6496/files/wategapegos.pdf
    • https://cdn.shopify.com/s/files/1/0431/1701/9292/files/ahora_j_balvin_song.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_off00009b49.bin
015741b89acdad540f2d5e083339c31346d76fe06d1d8c8c2a3b613c2725bdee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B49 5272 bytes
font_01_sfnt_off0000ad17.bin
eebc33942883edd309549e9848902726938afb0cbd9b63ff4c1ec4f877303b89		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAD17 16444 bytes

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