Malicious PDF — malware analysis report

Static analysis result for SHA-256 22dca9182054fbca…

MALICIOUS

PDF

54.7 KB Created: 2020-08-01 07:33:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67fa1ec90aff233b3a3fe69f90e48cb8 SHA-1: bc7b9ecedea0b7f48e6861aad40ac0b57a7e2dac SHA-256: 22dca9182054fbcad1c3ee58a66e2e5a083893e2c12696f924f15c96244c4bc9
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=final+fantasy+15+guide+pdf', suggesting a lure to disguise malicious activity. The presence of a link farm and a malicious redirector indicates an attempt to distribute further malicious content or conduct phishing.

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=final+fantasy+15+guide+pdf
    • http://files.allenhuang.org/uploads/1/3/1/4/131406826/nobakuti.pdf
    • http://files.fittingroomligonier.com/uploads/1/3/0/8/130814672/sodumavasoso_sugenufefigu_tinivotosuna_sezomojodupebe.pdf
    • http://files.serenarobinett.com/uploads/1/3/1/1/131164311/1208511.pdf
    • http://files.thesolutionaryschool.org/uploads/1/3/0/7/130738814/lavomowife_fefasaboliwuze_detopezinet.pdf
    • http://files.magicalhomesneardisney.com/uploads/1/3/0/8/130813489/1afa37958.pdf
    • https://cdn.shopify.com/s/files/1/0431/5702/9019/files/23174956127.pdf
    • https://cdn.shopify.com/s/files/1/0430/8759/3632/files/94640999101.pdf
    • https://cdn.shopify.com/s/files/1/0430/1278/4277/files/12035811773.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/6819160869.pdf
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/73470345186.pdf
    • https://cdn.shopify.com/s/files/1/0437/8820/6238/files/trotter_525_treadmill_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vonabubabosutogoxofe.pdf
    • https://cdn.shopify.com/s/files/1/0428/3655/7987/files/7259660648.pdf
    • https://cdn.shopify.com/s/files/1/0429/5573/5199/files/zenedobu.pdf
    • https://cdn.shopify.com/s/files/1/0429/5802/8959/files/51028688242.pdf
    • https://cdn.shopify.com/s/files/1/0428/5772/6118/files/54314847090.pdf
    • https://cdn.shopify.com/s/files/1/0430/4922/2298/files/7060771085.pdf
    • https://cdn.shopify.com/s/files/1/0437/7693/4042/files/soduvulisowu.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_off000098b3.bin
1af83dc8ef4abb98c986f5e6e9611059ba55b46370d36a4d91c674ca44b8c14d
pdf-font-stream PDF embedded font (sfnt) at offset 0x98B3 5348 bytes
font_01_sfnt_off0000ab15.bin
16e4402674aae58517f7acb4810bc6a1b62aef90b5d81a9ff7807335cbba2cf3
pdf-font-stream PDF embedded font (sfnt) at offset 0xAB15 10164 bytes