Malicious PDF — malware analysis report

Static analysis result for SHA-256 a00f03943e0b683f…

MALICIOUS

PDF

40.5 KB Created: 2020-08-22 00:56:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f5bb33469642c8b3b8b982b9aed24ae4 SHA-1: 475d1ac9701e6bafa4b0fff6f2bfa7c72ed7cea0 SHA-256: a00f03943e0b683fcaa00bd401254f36f1bbb89d8943f6b03b3d340fc5f4273b
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to domains associated with link farms and redirectors, such as ttraff.com. The document body text, though partially corrupted, includes keywords like 'Ignou ba 3rd year date sheet 2019', suggesting a lure to attract users searching for academic information. The primary malicious link identified is https://ttraff.com/pify?keyword=ignou+ba+3rd+year+date+sheet+2019, which is likely used to redirect users to 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.com/pify?keyword=ignou+ba+3rd+year+date+sheet+2019
    • http://files.easternpoint.org/uploads/1/3/1/4/131437418/9025262.pdf
    • http://xogozo.skinesteemaz.shop/uploads/1/3/0/7/130775904/rageduluzof.pdf
    • http://files.fatcatproductions.com/uploads/1/3/0/7/130776483/pimovakakepukexudu.pdf
    • http://direbaka.ysk-chb.com/uploads/1/3/1/4/131406676/tamazemowesojimidal.pdf
    • http://files.alignnowphysicaltherapy.com/uploads/1/3/1/4/131438501/taseka_buminosefi_piginuti_waxagisejo.pdf
    • https://cdn.shopify.com/s/files/1/0434/3224/7457/files/sadava_life_10th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/gaforojavukolodij.pdf
    • https://cdn.shopify.com/s/files/1/0430/6547/5226/files/inverse_gamma_in_r.pdf
    • https://cdn.shopify.com/s/files/1/0435/3835/0231/files/wuvoxel.pdf
    • https://cdn.shopify.com/s/files/1/0434/7507/5225/files/similarities_between_prokaryotic_and_eukaryotic_cells.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nagexonulelaxefirulilona.pdf
    • https://cdn.shopify.com/s/files/1/0447/9424/9377/files/warhammer_40k_salamanders_codex.pdf
    • https://cdn.shopify.com/s/files/1/0430/6088/7705/files/dujanivujapub.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/85339616825.pdf
    • https://cdn.shopify.com/s/files/1/0431/5211/3820/files/le_cercle_de_la_forme_saint_lazare.pdf
    • https://cdn.shopify.com/s/files/1/0431/5702/9019/files/14205706028.pdf
    • https://cdn.shopify.com/s/files/1/0454/2434/5244/files/13287940565.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ff5.bin
835968fc1a7b435a2f3850b7a9e304d2b0af223af9c10f9b9388416c123268d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF5 5880 bytes
font_01_sfnt_off000073f0.bin
104dfffa934034293a9fb18fee7b5743f3fd52562d44fc95d490082dcbaa8a75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73F0 9752 bytes

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