Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a10738eced9d550…

MALICIOUS

PDF

50.2 KB Created: 2020-08-11 02:47:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5fb35253a59d8386731f26a15b5f63be SHA-1: 21a7e504d1ca5e1def8efc8616e8c816abbbb77b SHA-256: 1a10738eced9d5502bd23815576a6b3b151339360b1a6c6bc02ab3cd729cebb5
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 the presence of a large number of external links, characteristic of a link farm. One of these links, https://ttraff.com/pify?keyword=egomaniac+vi+keeland+pdf+romana, points to a known malicious redirector. The document body contains garbled text and embedded URLs, further supporting the malicious intent. The primary goal appears to be directing users to malicious infrastructure.

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.com/pify?keyword=egomaniac+vi+keeland+pdf+romana
    • http://rupotorib.k-keratin.us/uploads/1/3/0/7/130775997/bunitege-danisepuri-dotid-lozusobu.pdf
    • http://files.babymoonllc.com/uploads/1/3/1/4/131453177/3e0796c19c1.pdf
    • http://files.hollyrav.com/uploads/1/3/0/9/130969592/d6966c673cf2.pdf
    • http://files.carringtonandfinch.com/uploads/1/3/0/7/130739831/kunobe-tuzixogonikiteg.pdf
    • http://files.cogpowcommunity.org/uploads/1/3/0/7/130739746/xuzaxesojajoj-fadisijulinew-dobir-bupunetapawore.pdf
    • https://cdn.shopify.com/s/files/1/0434/1386/4602/files/41360559631.pdf
    • https://cdn.shopify.com/s/files/1/0432/6657/2443/files/bawowomur.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31968244380.pdf
    • https://cdn.shopify.com/s/files/1/0435/4228/2399/files/dasufavope.pdf
    • https://cdn.shopify.com/s/files/1/0434/1969/7308/files/37889680935.pdf
    • https://cdn.shopify.com/s/files/1/0433/9305/6933/files/napadunasovaditaze.pdf
    • https://cdn.shopify.com/s/files/1/0435/2642/2696/files/34226045405.pdf
    • https://cdn.shopify.com/s/files/1/0435/1705/1039/files/kujiwopulabuzak.pdf
    • https://cdn.shopify.com/s/files/1/0428/9832/5663/files/gusuvanexugotoguto.pdf
    • https://cdn.shopify.com/s/files/1/0431/7557/5709/files/kedazuxegibenezofuwe.pdf
    • https://cdn.shopify.com/s/files/1/0434/6170/5888/files/kinanonuno.pdf
    • https://cdn.shopify.com/s/files/1/0433/4193/8856/files/77081284794.pdf
    • https://cdn.shopify.com/s/files/1/0430/8621/7383/files/potamumurimone.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006959.bin
3c338ac72ea0d74381ddba0e9d9f339a3fc27db85ee93320759288f1863005de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6959 5376 bytes
font_01_sfnt_off00007b8f.bin
51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B8F 1800 bytes
font_02_sfnt_off0000841c.bin
bc0d90e22efb8e3b5d955129ac7eb83bf35d3e9c524cbcccd37b4f955a12826f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x841C 9872 bytes
font_03_sfnt_off0000a609.bin
fce21d86c2b5faa43a5619d6c859002d414ef8720c10ef6ba746f045f1b0bfa7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA609 16076 bytes

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