Malicious PDF — malware analysis report

Static analysis result for SHA-256 32cd341d8a74667b…

MALICIOUS

PDF

54.1 KB Created: 2020-08-06 10:03:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 544b336f2859dc915a2ae5783ef92c64 SHA-1: c9e75d5e1d600c8074550e6cdeec6cb2b224c8f8 SHA-256: 32cd341d8a74667b02c11921268a5cd263dd17b1df1d9a3ad99922a8de6ffbd7
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=bandit+queen+book+pdf', suggesting a lure for users seeking a book download. This redirector likely leads to a malicious payload or phishing page. The presence of numerous Shopify links, some confirmed benign and others unknown, indicates an attempt to blend malicious links with legitimate ones.

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=bandit+queen+book+pdf
    • http://files.dsa2020.org/uploads/1/3/1/0/131070434/vizixuv.pdf
    • http://bixow.oldgloryundersiege.com/uploads/1/3/0/8/130873826/wutadojozovenugifa.pdf
    • http://files.turfinstaller.net/uploads/1/3/0/9/130970014/f244d92b.pdf
    • http://files.abchase.co/uploads/1/3/0/9/130968984/030dc869d3609b7.pdf
    • https://cdn.shopify.com/s/files/1/0435/8435/6507/files/rasudufojo.pdf
    • https://cdn.shopify.com/s/files/1/0433/6451/5994/files/18658098608.pdf
    • https://cdn.shopify.com/s/files/1/0435/0548/3942/files/lugamusijir.pdf
    • https://cdn.shopify.com/s/files/1/0432/6378/7170/files/jilewitalinasavupetoje.pdf
    • https://cdn.shopify.com/s/files/1/0435/1541/2632/files/jonesokalebakefu.pdf
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/73624357693.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xizujebekox.pdf
    • https://cdn.shopify.com/s/files/1/0429/5095/1066/files/44304035763.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lunizededalusabunis.pdf
    • https://cdn.shopify.com/s/files/1/0435/1993/4628/files/paxul.pdf
    • https://cdn.shopify.com/s/files/1/0431/8652/0224/files/xatedabi.pdf
    • https://cdn.shopify.com/s/files/1/0438/0209/9873/files/xufegefi.pdf
    • https://cdn.shopify.com/s/files/1/0429/6704/0154/files/canon_powershot_sx500_is_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/92826579067.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000072f8.bin
13d35ae94113f4d7f12c2c0f151fe6b07969be4a366ef3f53d89b109fba083cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72F8 4992 bytes
font_01_sfnt_off000083fa.bin
4cd4b94d11c9038b4b053d9c96c7fefd796bc202e0bb11641520d9f1fb39a885		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83FA 10644 bytes
font_02_sfnt_off0000a815.bin
ebd2804bff382343e08f6a42dc45f69f4e794c08b23908ae60ba78ededae74b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA815 16164 bytes
font_03_sfnt_off0000bd2d.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBD2D 4324 bytes

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