Malicious PDF — malware analysis report

Static analysis result for SHA-256 58950aaeb4b6c05c…

MALICIOUS

PDF

42.3 KB Created: 2020-08-19 19:46:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 542c0d57d6b6bfd8a664db2798778ec4 SHA-1: fe2d9954ed68b635a4e3311e34930780f9c71267 SHA-256: 58950aaeb4b6c05c040d80d69d4ba416393e34b4c6f3e7d4235c0a8e78193e9d
128 Risk Score

Malware Insights

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

The PDF contains a lure related to 'lifting equipment inspection checklist template south africa' and includes a link to a known malicious redirector. The document also functions as a link farm, directing users to numerous external PDFs, many hosted on Shopify. The presence of a malicious redirector suggests an attempt to deliver a secondary payload or phish for credentials.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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.cc/pify?keyword=lifting+equipment+inspection+checklist+template+south+africa
    • http://files.dosisquares.org/uploads/1/3/1/6/131637606/pipipexes.pdf
    • https://cdn.shopify.com/s/files/1/0430/8716/7645/files/implosion_apk_full_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0431/0836/8545/files/fujitsu_fi_6110_driver.pdf
    • https://cdn.shopify.com/s/files/1/0429/1064/6435/files/mojavarelaligepamawuzi.pdf
    • https://cdn.shopify.com/s/files/1/0430/0223/2983/files/elaboracion_de_barras_energeticas_de_quinua.pdf
    • https://cdn.shopify.com/s/files/1/0438/1723/8688/files/interpretacion_de_biometria_hematica_completa.pdf
    • https://cdn.shopify.com/s/files/1/0430/4021/1097/files/d_d_5e_monster_manual_2.pdf
    • https://cdn.shopify.com/s/files/1/0448/9697/7051/files/97469980164.pdf
    • https://cdn.shopify.com/s/files/1/0432/9360/6056/files/mememakezum.pdf
    • https://cdn.shopify.com/s/files/1/0428/4959/9644/files/sacred_texts_of_hinduism.pdf
    • https://cdn.shopify.com/s/files/1/0430/5374/4279/files/kopifadapotejuseluxujimi.pdf
    • https://cdn.shopify.com/s/files/1/0445/3901/9428/files/93748084443.pdf
    • https://cdn.shopify.com/s/files/1/0428/9822/7353/files/63293733661.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_off00006619.bin
dcab4838c1836aaaea4469d8f4d8a832b11a7c81ac7bcd1d9325069a6d727570		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6619 5560 bytes
font_01_sfnt_off000078db.bin
499ca259d4250ec4a380a0a95764542297d4462b06b69a89975c7ac3486b668a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78DB 10340 bytes

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