Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ad48751d7d9497b…

MALICIOUS

PDF

69.1 KB Created: 2020-08-14 07:48:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b80971d69d675879cb4c3bbd38794925 SHA-1: 69ddea471b648e7cd9797024ad3eeb55e6a658f8 SHA-256: 8ad48751d7d9497ba62b02e1bfb202288127031f00568d3b28cf005a0d923b05
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a link farm designed to mimic search engine results, leading to a known malicious redirector. The document also includes a lure for MFA or one-time code harvesting, suggesting a credential phishing attempt. The embedded URLs, particularly the one pointing to 'ttraff.ru', are indicative of a phishing or redirection campaign.

Heuristics 4

  • 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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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/wb?keyword=synology%20nas%20ds918+%20pdf
    • http://vivolo.boisebestweddings.com/uploads/1/3/1/1/131164211/semuvojadabiwow_bemulegagabumo_bidogedulalis_xiwokewezeworu.pdf
    • http://files.freshstockjapan.com/uploads/1/3/1/4/131453633/1119338.pdf
    • http://files.metamoralionsclub.org/uploads/1/3/0/8/130874148/d5fb57cbdd16.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/77084518355.pdf
    • https://cdn.shopify.com/s/files/1/0437/8856/6677/files/canon_eos_7d_mark_iii_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/2602/2557/files/68801673555.pdf
    • https://cdn.shopify.com/s/files/1/0438/2071/2098/files/66944994877.pdf
    • https://cdn.shopify.com/s/files/1/0432/9088/6312/files/fopononeg.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96056065099.pdf
    • https://cdn.shopify.com/s/files/1/0428/7735/4143/files/vevibidovidazinerorir.pdf
    • https://cdn.shopify.com/s/files/1/0433/2873/3352/files/desibufevaxunepelagegike.pdf
    • https://cdn.shopify.com/s/files/1/0429/8244/1113/files/67904514465.pdf
    • https://cdn.shopify.com/s/files/1/0430/9748/9561/files/67244795113.pdf
    • https://cdn.shopify.com/s/files/1/0433/3309/1496/files/tesonevalu.pdf
    • https://cdn.shopify.com/s/files/1/0433/1785/4366/files/65502900894.pdf
    • https://cdn.shopify.com/s/files/1/0434/1468/3813/files/xapepotoxudesumek.pdf
    • https://cdn.shopify.com/s/files/1/0432/0441/1556/files/35751608416.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_off0000c478.bin
125c66786f617bbe2767dbbd57e9138fa8e9958a94115632a81241e9e1a47dbc
pdf-font-stream PDF embedded font (sfnt) at offset 0xC478 5720 bytes
font_01_sfnt_off0000d80d.bin
436ca865dc073bea76ce6d1eddc0542b48dd9353eee767ae5ec3db0fd3560b6f
pdf-font-stream PDF embedded font (sfnt) at offset 0xD80D 15216 bytes