Malicious PDF — malware analysis report

Static analysis result for SHA-256 1aac8d2457d95a6c…

MALICIOUS

PDF

44.7 KB Created: 2020-08-07 09:46:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e00c7e7bb91b4cc66029b8b52538fe2 SHA-1: 9f0ea5c5b4fbdc874c422cc476e34bbe0f6cb9de SHA-256: 1aac8d2457d95a6ca99c45f5045454bbc16336c1e4fea66fcabb437b8b6a37bd
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, contains text suggesting a tutorial, likely a lure to encourage clicking the malicious link. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, many of which point to Shopify domains, but the primary malicious link is to ttraff.cc.

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=tutorial+de+scratch+2.+0+en+espa%25C3%25B1ol+pdf
    • http://nasiku.photographtheheath.co.uk/uploads/1/3/2/3/132302780/kejedomuziforijodira.pdf
    • http://files.oywv.org/uploads/1/3/1/4/131454316/3176307.pdf
    • http://files.societyfordisabledartists.org/uploads/1/3/0/8/130813796/f67392c2155a.pdf
    • https://cdn.shopify.com/s/files/1/0437/0527/0427/files/43700247854.pdf
    • https://cdn.shopify.com/s/files/1/0433/2158/9913/files/wodidaminilijoto.pdf
    • https://cdn.shopify.com/s/files/1/0437/1084/1000/files/98775272023.pdf
    • https://cdn.shopify.com/s/files/1/0431/1806/7866/files/86262107423.pdf
    • https://cdn.shopify.com/s/files/1/0433/4800/0927/files/vexipupoli.pdf
    • https://cdn.shopify.com/s/files/1/0429/9679/3503/files/82479381884.pdf
    • https://cdn.shopify.com/s/files/1/0432/8180/9558/files/14256247591.pdf
    • https://cdn.shopify.com/s/files/1/0433/3119/0952/files/sop_97_2.pdf
    • https://cdn.shopify.com/s/files/1/0432/9557/2126/files/57644645815.pdf
    • https://cdn.shopify.com/s/files/1/0430/9359/0167/files/3944194563.pdf
    • https://cdn.shopify.com/s/files/1/0427/4618/3847/files/diabetic_neuropathy_definition.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_off00005c29.bin
f85ecf888338ab4128e8fcc9ad47e23b9307fda5fa624ca1a5f2ded6ba506dab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C29 5592 bytes
font_01_sfnt_off00006ed9.bin
a83d2c71dd0a44347507e28fe6fb6ff9b4981d17f064260c326f96d8a148ad98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED9 11868 bytes
font_02_sfnt_off0000958e.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x958E 4324 bytes

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