Malicious PDF — malware analysis report

Static analysis result for SHA-256 f499ae294f0f18a5…

MALICIOUS

PDF

45.0 KB Created: 2020-08-14 00:16:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 237a87bcb7269ea0cf9cb6cd78f143dc SHA-1: 51f3332fbf58668b1c1b17364a80b2e9c5b91615 SHA-256: f499ae294f0f18a57571f3b1c14c8beb7b449cdadca9c76351e1051b771b428b
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=baarish+song+yaariyan++pagalworld'. Additionally, it exhibits characteristics of a link farm, with numerous external PDF links, including one to 'https://cdn.shopify.com/s/files/1/0428/5900/4070/files/halo_combat_evolved_pc_download.pdf'. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the malicious URL.

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=baarish+song+yaariyan++pagalworld
    • http://files.shamanicpathandpractice.com/uploads/1/3/2/6/132695354/guxare-wumuzunafapo.pdf
    • http://files.spamitzvah.com/uploads/1/3/1/3/131384789/2268709.pdf
    • http://kiruwa.ljayhair.com/uploads/1/3/0/8/130814328/6019747.pdf
    • http://files.frankhagancontracting.com/uploads/1/3/2/6/132681404/zatamutofineve.pdf
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/halo_combat_evolved_pc_download.pdf
    • https://cdn.shopify.com/s/files/1/0455/5482/7429/files/chemistry_formulas_list_for_class_10.pdf
    • https://cdn.shopify.com/s/files/1/0437/6884/0341/files/51283915989.pdf
    • https://cdn.shopify.com/s/files/1/0430/1737/1797/files/99897844331.pdf
    • https://cdn.shopify.com/s/files/1/0432/5205/6227/files/africa_crossword_puzzle_worksheet_answers.pdf
    • https://cdn.shopify.com/s/files/1/0429/1274/3591/files/98918801686.pdf
    • https://cdn.shopify.com/s/files/1/0429/8578/3447/files/saxovaxavebofonosize.pdf
    • https://cdn.shopify.com/s/files/1/0441/1123/3176/files/meiosis_worksheet_answers_key.pdf
    • https://cdn.shopify.com/s/files/1/0431/7167/6314/files/baresalorawubewefobekoda.pdf
    • https://cdn.shopify.com/s/files/1/0433/3414/0056/files/string_to_lpcwstr.pdf
    • https://cdn.shopify.com/s/files/1/0430/3713/0914/files/70458804240.pdf
    • https://cdn.shopify.com/s/files/1/0431/8042/5370/files/hoi4_man_the_guns_best_infantry_template.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b0f.bin
d93352bed7d1f3dd1c278477fdf753188748fd93f58cb00fcea804348a9de8ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B0F 5464 bytes
font_01_sfnt_off00006db4.bin
cb5f2a8e6895750547d89903e1bf5f60405a121e3d8a8416038ade40fa9eee5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DB4 14340 bytes
font_02_sfnt_off00009aa7.bin
4272b3ac1fa469077731a397d6d1aa254b536d01b83573c32e085db5c22d647a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9AA7 2996 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.