Malicious PDF — malware analysis report

Static analysis result for SHA-256 5353216079e7e5e9…

MALICIOUS

PDF

53.5 KB Created: 2020-07-31 21:15:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4845ec43b5fe1b52432e052fbc2a72c6 SHA-1: a8a56bf009a18c223cb41efc6a4bd2fdfa35aff5 SHA-256: 5353216079e7e5e9f0c9dd37b71c37a30c46e99e681cc0d4250f34f7d9b7ef5a
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=dark+souls+3+drakeblood+greatsword'. This URL is embedded within the document body, suggesting a social engineering lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The primary malicious URL is likely intended to redirect the user to a harmful site.

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=dark+souls+3+drakeblood+greatsword
    • http://files.rosytoesdesigns.com/uploads/1/3/1/4/131409677/a7aaeddabf.pdf
    • http://files.cantatrice.ca/uploads/1/3/1/6/131637016/razob_refulipodorusu_kuxojixezidu_gulew.pdf
    • http://files.gravattjewellery.com/uploads/1/3/1/8/131856105/3e05eabe.pdf
    • https://cdn.shopify.com/s/files/1/0432/1368/4891/files/mudiposikazumaxi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6214/0840/files/63008032641.pdf
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/68592617547.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/pumokijizarodaruvuxeki.pdf
    • https://cdn.shopify.com/s/files/1/0437/9911/7986/files/dasukimojogirasorakuva.pdf
    • https://cdn.shopify.com/s/files/1/0432/3832/6432/files/pikudumedagonoronemow.pdf
    • https://cdn.shopify.com/s/files/1/0435/2360/4631/files/tadukefovaz.pdf
    • https://cdn.shopify.com/s/files/1/0430/9899/6889/files/werilanele.pdf
    • https://cdn.shopify.com/s/files/1/0434/0046/2501/files/mibirojiwafopadojexa.pdf
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/50506875709.pdf
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/68799386647.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93236297381.pdf
    • https://cdn.shopify.com/s/files/1/0430/4306/1909/files/82351760968.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_off00009325.bin
cabfc1a43c8a8861998188a2d704081ed1178e30f60c6d486dfacf685efd130f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9325 5452 bytes
font_01_sfnt_off0000a5d2.bin
438e651383ccbd79b0b4fd001a7b32aea45fc2c8344a8bb1d719e69463f82b94		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA5D2 10312 bytes

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