Malicious PDF — malware analysis report

Static analysis result for SHA-256 306d81f1a0dba92c…

MALICIOUS

PDF

52.9 KB Created: 2020-08-13 09:16:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7eae27e8f7504c8c13d0ed8732a469af SHA-1: e521ca8a0477876fc54e993e2b2141a30c216a44 SHA-256: 306d81f1a0dba92c2ebf99ce3001d2261de3302434ba28fab2f68da9fc7bf556
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=biology+pdf+download'. This indicates the document is designed to lead users to malicious content. The PDF also contains a large number of external links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic to improve search engine visibility for malicious links. No scripts were extracted, but the presence of a malicious redirector URL is a strong indicator of a phishing or malware distribution attempt.

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=biology+pdf+download
    • http://vepirobus.theboppsbling.com/uploads/1/3/1/4/131408899/b518363b48f092.pdf
    • http://fobeda.cubatrips.ca/uploads/1/3/0/7/130738731/vumefita_gobokofusasu_xebasuvoruxewo.pdf
    • http://files.computer-props.com/uploads/1/3/1/4/131437736/zosolovelage.pdf
    • https://cdn.shopify.com/s/files/1/0445/2201/2831/files/algebra_1_saxon_math.pdf
    • https://cdn.shopify.com/s/files/1/0433/4557/6088/files/22116998161.pdf
    • https://cdn.shopify.com/s/files/1/0428/7630/5564/files/xisataji.pdf
    • https://cdn.shopify.com/s/files/1/0435/3074/8055/files/babawigulekavawozu.pdf
    • https://cdn.shopify.com/s/files/1/0433/3069/9414/files/88729840805.pdf
    • https://cdn.shopify.com/s/files/1/0428/7853/3799/files/vazepatuwuw.pdf
    • https://cdn.shopify.com/s/files/1/0438/2185/8973/files/lavunapa.pdf
    • https://cdn.shopify.com/s/files/1/0433/9017/3349/files/posatununonezovopo.pdf
    • https://cdn.shopify.com/s/files/1/0428/2833/3219/files/35637235436.pdf
    • https://cdn.shopify.com/s/files/1/0433/4410/1544/files/tavidotajoxuzogiv.pdf
    • https://cdn.shopify.com/s/files/1/0429/7372/4825/files/bugidenadevudofupaji.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_off0000840e.bin
42095394530ad5907f4329ae7ab95f83021d8743c81b489707162f6e5e7d6aef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x840E 4768 bytes
font_01_sfnt_off00009460.bin
925969dcc1bb2a053f09fdc7d08b0e928a633becf08361aee78f720ad9c50a44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9460 10884 bytes
font_02_sfnt_off0000b8f4.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB8F4 4324 bytes

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