Malicious PDF — malware analysis report

Static analysis result for SHA-256 d20d494974c994be…

MALICIOUS

PDF

38.8 KB Created: 2020-08-14 22:41:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4fd377e069307b312bd266424c9d7bfc SHA-1: 85ca5ac2ecceef574c57f933e88e782cc3f2aad8 SHA-256: d20d494974c994be1e715b832fb603d5d5ec3f54b8e2604ebd998669f6943552
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.ru/pify?keyword=rockstar+movie++hd+openload', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this same URL, suggesting the intent is to redirect users to malicious content under the guise of providing movie links.

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=rockstar+movie++hd+openload
    • http://vunazo.polarmininginc.com/uploads/1/3/0/9/130969541/pawupuriziwepo_gatunazofi_lanamirasadajax.pdf
    • http://files.prathleticboosterclub.com/uploads/1/3/1/4/131437029/8636676.pdf
    • http://files.wildwellnessllc.com/uploads/1/3/0/7/130776682/xutesoxilebaz_mosadupop_jelokivusefi.pdf
    • https://cdn.shopify.com/s/files/1/0437/3587/5745/files/relazuvifuxubaroxefo.pdf
    • https://cdn.shopify.com/s/files/1/0431/7767/2868/files/glossary_of_linguistic_terms.pdf
    • https://cdn.shopify.com/s/files/1/0440/7400/8741/files/3887251422.pdf
    • https://cdn.shopify.com/s/files/1/0431/5106/5243/files/burijijuribukujari.pdf
    • https://cdn.shopify.com/s/files/1/0428/5290/9212/files/generador_de_tarjeta_de_credito.pdf
    • https://cdn.shopify.com/s/files/1/0428/6231/3639/files/zamisekigidogiz.pdf
    • https://cdn.shopify.com/s/files/1/0430/6547/5226/files/vulofofowuvunagef.pdf
    • https://cdn.shopify.com/s/files/1/0449/7866/7688/files/bella_bella_new_punjabi_song.pdf
    • https://cdn.shopify.com/s/files/1/0428/8305/5782/files/fixufijinemazane.pdf
    • https://cdn.shopify.com/s/files/1/0427/8140/9436/files/33398020885.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_off00004d63.bin
461761f297333a1dc43f58b484d0d076a2ea3f583cb3ef43cf2aeebcecb1b0bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D63 5232 bytes
font_01_sfnt_off00005f04.bin
fbdf49b69809d6594e24420f95e39e6ac828c143a1ce6c2399172867672aa260		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F04 9828 bytes
font_02_sfnt_off000080a9.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80A9 4324 bytes

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