Malicious PDF — malware analysis report

Static analysis result for SHA-256 82f08c7307b8b58a…

MALICIOUS

PDF

42.1 KB Created: 2020-08-22 05:31:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e39f8a3880e3974fef854e5da34c41b SHA-1: f0c4bdd56311d1c6eac2d3ba8f6e1a35931b62b5 SHA-256: 82f08c7307b8b58ab64925103e3001778affe53babbf51ff6ac92eeda11397b7
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 links, many of which point to a redirector service. The document body, though heavily obfuscated, contains text that appears to be related to song downloads, suggesting a lure to trick users into clicking the malicious links. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or exploits.

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.cc/pify?keyword=manma+emotion+song++pagalworld+320kbps
    • http://files.divinehorsetack.com/uploads/1/3/0/7/130775297/gozagas.pdf
    • https://cdn.shopify.com/s/files/1/0430/8264/5665/files/1355835854.pdf
    • https://cdn.shopify.com/s/files/1/0434/0531/2156/files/xowopakalozomubekifado.pdf
    • https://cdn.shopify.com/s/files/1/0434/2172/8918/files/vupomu.pdf
    • https://cdn.shopify.com/s/files/1/0437/4190/5050/files/sewotodu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0894/9402/files/migos_one_time_audiomack.pdf
    • https://cdn.shopify.com/s/files/1/0428/3590/2631/files/23064832711.pdf
    • https://cdn.shopify.com/s/files/1/0430/9119/8112/files/ayn_rand_anthem.pdf
    • https://cdn.shopify.com/s/files/1/0435/4464/1695/files/6848819212.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/61238086127.pdf
    • https://cdn.shopify.com/s/files/1/0429/9997/1999/files/26059626870.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vonabubabosutogoxofe.pdf
    • https://cdn.shopify.com/s/files/1/0434/1907/4712/files/convert_wmv_to_mp3.pdf
    • https://cdn.shopify.com/s/files/1/0434/5665/9621/files/32354200460.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_off00004e8a.bin
47abaead1eebc79c1f003c0e839dd0dbbe43f6f413542a81dd8ea1ceef47212a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E8A 5808 bytes
font_01_sfnt_off00006245.bin
ee76f9816329bf5366aa1fd1ae8881b00e6e2799db85037a63d5f62df48c75fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6245 14064 bytes
font_02_sfnt_off00008d84.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D84 4324 bytes

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