Malicious PDF — malware analysis report

Static analysis result for SHA-256 a197dfae24281598…

MALICIOUS

PDF

40.1 KB Created: 2020-08-25 00:24:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a6aa01cab963ebfa6708834b4c4df57 SHA-1: 4eba764cd88437d52aca9cd1a0789a7d0886b22e SHA-256: a197dfae24281598ea39fd74e9e9c0648ba58b9ea7bee9b3721a95d378371287
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The primary malicious URL, 'https://ttraff.ru/pify?keyword=c%2B+c+music+factory+i+found+love', is likely used to lure the user to a harmful site. The PDF also exhibits characteristics of a link farm, suggesting a broad distribution attempt. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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.ru/pify?keyword=c%252B+c+music+factory+i+found+love
    • http://dababosal.sunrayharvesters.com/uploads/1/3/0/7/130775823/gewalixuro-bejipu-sukobaxeli.pdf
    • http://files.goldendaleobservatory.com/uploads/1/3/1/3/131398540/20bfe475a329fb.pdf
    • http://files.krysta-m.com/uploads/1/3/1/8/131857445/fiwigi_japosokulewiwux_fawokaso.pdf
    • http://lelog.gracesaunders.com/uploads/1/3/1/3/131380086/nolisefadanexu-pijafej-puxitejomegag.pdf
    • https://cdn.shopify.com/s/files/1/0439/3569/5016/files/40612217260.pdf
    • https://cdn.shopify.com/s/files/1/0429/2280/3363/files/basic_computer_fundamentals_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/7186/4993/files/pabukamosutudiz.pdf
    • https://cdn.shopify.com/s/files/1/0432/3970/2687/files/gipodejofulevinogi.pdf
    • https://cdn.shopify.com/s/files/1/0448/2108/6368/files/que_es_moral_segun_autores.pdf
    • https://cdn.shopify.com/s/files/1/0433/7729/5516/files/95258474937.pdf
    • https://cdn.shopify.com/s/files/1/0429/6183/0037/files/42959890584.pdf
    • https://cdn.shopify.com/s/files/1/0430/8510/3255/files/punozolemuvo.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/
    • https://cdn.shopify.com/s/files/1/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d62.bin
29d13260da15dfb5eb0fff83fb6a470d574532e9636a17eb0c18eb1295c146c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D62 5232 bytes
font_01_sfnt_off00006f18.bin
c3a96b68c753685346585890a98578ddf0b5e394e500f737c47b3443a8c17e66		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F18 10644 bytes

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