Malicious PDF — malware analysis report

Static analysis result for SHA-256 00695c99f6bd9dc4…

MALICIOUS

PDF

40.9 KB Created: 2020-08-15 02:22:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c7f7a271cf7b5113f3c19c196459e183 SHA-1: 7bc83cd5a433663ca9228fd069acd1d25776c45b SHA-256: 00695c99f6bd9dc4197d2f6ace2174bc52045da13b582a3de777694ee19ccb8d
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final destination of the malicious payload. The document body, though heavily obfuscated, contains references to movie titles and URLs, suggesting a lure to entice users to click the malicious link. The presence of numerous external PDF links also indicates a link farm strategy, potentially for SEO manipulation or to host further malicious content.

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=attu+full+movie++tamilrockers
    • http://fotur.camerasquare.net/uploads/1/3/1/6/131607407/1d76055.pdf
    • http://files.marinersguide.info/uploads/1/3/0/7/130776166/376096.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0430/0813/1233/files/17554444757.pdf
    • https://cdn.shopify.com/s/files/1/0435/6653/0719/files/48935068841.pdf
    • https://cdn.shopify.com/s/files/1/0434/9929/0776/files/72723901808.pdf
    • https://cdn.shopify.com/s/files/1/0428/3046/3135/files/xokali.pdf
    • https://cdn.shopify.com/s/files/1/0430/4168/5665/files/86060847569.pdf
    • https://cdn.shopify.com/s/files/1/0429/2424/5155/files/1977810244.pdf
    • https://cdn.shopify.com/s/files/1/0436/9675/0742/files/kazawogaw.pdf
    • https://cdn.shopify.com/s/files/1/0438/1098/0000/files/adobe_acrobat_xi_standard_free_trial.pdf
    • https://cdn.shopify.com/s/files/1/0435/6725/1615/files/alcoholismo_y_tabaquismo_en_adolescentes.pdf
    • https://cdn.shopify.com/s/files/1/0429/7408/5279/files/77311915427.pdf
    • https://cdn.shopify.com/s/files/1/0430/8933/0330/files/gufivimezisizifab.pdf
    • https://cdn.shopify.com/s/files/1/0454/4741/3910/files/baldur_s_gate_enhanced_edition_walkthrough.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000049c5.bin
e009a4112c83af99a7c2a4c2a5814d6214be6156db49237d2774acd3a979012b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x49C5 4916 bytes
font_01_sfnt_off00005a83.bin
73983ccd477f0e4c07634362c0f9f13a23cea415a26bff37f7f125d59a681190		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A83 1936 bytes
font_02_sfnt_off000063c6.bin
9f66816a91557a30b05af6e7f4643e496e646bc6528df38419679650a86dc348		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63C6 10668 bytes
font_03_sfnt_off0000882d.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x882D 4324 bytes

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