Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c534abea114b039…

MALICIOUS

PDF

40.1 KB Created: 2020-08-24 02:00:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54c67e2b2459af709caf252e7f0784d6 SHA-1: cf32aaf59357071f2675b4400b668a624a585caa SHA-256: 2c534abea114b0395862ff8bbc6981322b7b010207d753c8f2b2e3f2f2a3f05c
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 a known malicious domain, ttraff.com, with a query suggesting a lure related to Steam installation problems. The document also exhibits characteristics of a link farm, embedding numerous external PDF links, many hosted on Shopify. The primary malicious link is designed to redirect the user to potentially harmful content.

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=steam++stuck+on+installing
    • http://files.canberrabirthservices.com/uploads/1/3/0/8/130813841/0917fed35c1bd.pdf
    • https://cdn.shopify.com/s/files/1/0462/6907/1511/files/instagram_photo_video_er_apk.pdf
    • https://cdn.shopify.com/s/files/1/0438/9987/9576/files/34080704023.pdf
    • https://cdn.shopify.com/s/files/1/0437/4190/5050/files/how_to_hack_xbox_360.pdf
    • https://cdn.shopify.com/s/files/1/0436/2141/7122/files/61174507220.pdf
    • https://cdn.shopify.com/s/files/1/0430/1006/4537/files/29950908127.pdf
    • https://cdn.shopify.com/s/files/1/0434/9100/0472/files/opencl_error_codes.pdf
    • https://cdn.shopify.com/s/files/1/0461/8292/4441/files/44323628429.pdf
    • https://cdn.shopify.com/s/files/1/0430/3034/7938/files/50916240873.pdf
    • https://cdn.shopify.com/s/files/1/0431/4805/0586/files/lagazuxogabijidodasis.pdf
    • https://cdn.shopify.com/s/files/1/0437/0500/8293/files/vufinajad.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f09.bin
06b4e49eeb3865abedd36de39ce044e571ee1fea7960bf0f3316cd242156bd45		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F09 5188 bytes
font_01_sfnt_off0000709d.bin
c44f6176dd3afeae79825e728573e6d208c7df9986ba796352ac69fc3908d231		 pdf-font-stream PDF embedded font (sfnt) at offset 0x709D 10280 bytes

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