Malicious PDF — malware analysis report

Static analysis result for SHA-256 be0a336cae8e25bb…

MALICIOUS

PDF

62.1 KB Created: 2020-08-02 17:44:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 713bd55e62276fe2bf41e27067c4542a SHA-1: 7f3e9e91e2af1b028533d977064e198792647148 SHA-256: be0a336cae8e25bbd1b020486cb01eef69ceab1329ae1e4fa30c526bbb67a0e0
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to a high number of embedded external links, a technique commonly used to create link farms for SEO manipulation or to redirect users to malicious sites. One such link, 'https://ttraff.cc/pify?keyword=creep+b+smyth', points to a known malicious redirector. The document body contains obfuscated text and a URL, further supporting the malicious intent.

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=creep+b+smyth
    • http://files.transportation.jvcai.org/uploads/1/3/1/4/131407980/fisedon_ridiv_dilid.pdf
    • http://files.elishope.org/uploads/1/3/1/1/131164386/gepizigikiguj-kusof-ralum-mebarigavew.pdf
    • http://files.lilysbathsandbiscuits.com/uploads/1/3/0/9/130969148/lajap.pdf
    • https://cdn.shopify.com/s/files/1/0431/5863/4658/files/60165239944.pdf
    • https://cdn.shopify.com/s/files/1/0431/0587/8167/files/jitulegoduvepodudodavat.pdf
    • https://cdn.shopify.com/s/files/1/0434/3539/3191/files/33208892790.pdf
    • https://cdn.shopify.com/s/files/1/0449/0412/0475/files/how_to_grow_your_discord_server.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/kubumulubaz.pdf
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/wivolinejolofefub.pdf
    • https://cdn.shopify.com/s/files/1/0431/6073/1799/files/niwuluz.pdf
    • https://cdn.shopify.com/s/files/1/0430/0016/8597/files/download_from_xnxx.pdf
    • https://cdn.shopify.com/s/files/1/0435/3982/4799/files/balexigajitawor.pdf
    • https://cdn.shopify.com/s/files/1/0435/1878/7743/files/dazivas.pdf
    • https://cdn.shopify.com/s/files/1/0431/0227/3703/files/40297117832.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_off0000a8b6.bin
a31dee7d907637f71dd6b968fa3a3350213d1b1ba9037e7b97ec5c4b41138371		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA8B6 4608 bytes
font_01_sfnt_off0000b85e.bin
69031dd1e127d384668ecfb353e44ddd26a9579b2fcf102231efeee327e0c130		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB85E 10968 bytes
font_02_sfnt_off0000dd9a.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDD9A 4324 bytes

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