Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2b0d20a2878bbd1…

MALICIOUS

PDF

45.5 KB Created: 2020-09-01 17:52:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d6b761c502db327e6ddcdf73b178156 SHA-1: 6be1740faaad5efffa3c61dd5d4ca84022f3ee7e SHA-256: a2b0d20a2878bbd175d50266db44cfddeabd9de860b49febceaec809af4efd17
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs, many of which point to a link farm designed for SEO manipulation. One critical heuristic identified a direct link to a known malicious redirector, `https://ttraff.link/wix?keyword=bharat+movie+songs++telugu`, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains text related to movie songs, suggesting a lure to entice clicks on the malicious link.

Heuristics 3

  • 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.
  • 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.link/wix?keyword=bharat+movie+songs++telugu
    • https://static.usrfiles.com/ugd/086daf_7f5f1ce265f34978bdaac65e98fe8959.pdf
    • https://static.usrfiles.com/ugd/ce5d00_e1d4a2529cdd4aaea4e1b209201fa844.pdf
    • https://static.usrfiles.com/ugd/c068f8_eefa89a162f84a919caf53484aafd4ce.pdf
    • https://cdn.shopify.com/s/files/1/0437/2067/1386/files/36645629561.pdf
    • https://cdn.shopify.com/s/files/1/0434/3981/6861/files/penizepufiga.pdf
    • https://cdn.shopify.com/s/files/1/0431/3631/9639/files/zenazuk.pdf
    • https://cdn.shopify.com/s/files/1/0429/2427/7923/files/latelijerumufojixe.pdf
    • https://cdn.shopify.com/s/files/1/0428/5313/8591/files/baldur_s_gate_2_enhanced_edition_walkthrough.pdf
    • https://cdn.shopify.com/s/files/1/0433/9489/1943/files/89835410367.pdf
    • https://cdn.shopify.com/s/files/1/0434/4430/6086/files/2830_merrywood_drive_sacramento_ca.pdf
    • https://cdn.shopify.com/s/files/1/0437/0874/3834/files/former_and_latter_rain_in_the_bible.pdf
    • https://cdn.shopify.com/s/files/1/0431/6535/2093/files/mechanical_advantage_worksheet_pulley.pdf
    • https://cdn.shopify.com/s/files/1/0436/0772/0094/files/phoneme_worksheets_year_2.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_off00007133.bin
033fd185864fb77362a6907e4deaa6deded3a5da8d62ece5f6d869c055963195		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7133 5208 bytes
font_01_sfnt_off000082c5.bin
6f3bfbccbb25e8231b0eb56155f6316a7fe2393bfdde847901ec569fd1d1d808		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82C5 11716 bytes

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