Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a431d61edab08bc…

MALICIOUS

PDF

42.0 KB Created: 2020-08-18 16:15:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75f7afdd343268bcd263bb5ae6fae9ff SHA-1: 60a6ace0ca04f6a40aca7b82750191498fda0319 SHA-256: 1a431d61edab08bc764ce0b86a22588be54513f7a54384b7b1929f7148035df9
120 Risk Score

Malware Insights

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

The PDF document contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=adobe+pagemaker+7.+0+software'. This indicates the document is designed to lure users to malicious infrastructure. Additionally, a heuristic for a PDF link farm was triggered, with numerous links pointing to Shopify domains, suggesting a broad distribution effort. No scripts were extracted from this sample.

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.cc/pify?keyword=adobe+pagemaker+7.+0+software
    • http://files.usafire.com/uploads/1/3/2/6/132681536/veworevuwoniti_dozeb_gujefusetebaw.pdf
    • http://files.davidtheteacher.com/uploads/1/3/0/7/130739505/48d48d9.pdf
    • http://lisis.morinmath.com/uploads/1/3/0/8/130813765/1790131.pdf
    • https://cdn.shopify.com/s/files/1/0433/6071/4904/files/62281570398.pdf
    • https://cdn.shopify.com/s/files/1/0439/1531/3307/files/75626809192.pdf
    • https://cdn.shopify.com/s/files/1/0429/6772/8279/files/misoxalifizamotatara.pdf
    • https://cdn.shopify.com/s/files/1/0435/5650/3707/files/zapifi.pdf
    • https://cdn.shopify.com/s/files/1/0432/6614/6472/files/vorajaziz.pdf
    • https://cdn.shopify.com/s/files/1/0434/3506/5510/files/bofonopuborovejewuxerite.pdf
    • https://cdn.shopify.com/s/files/1/0435/5935/4517/files/microsd_management_3ds_cia.pdf
    • https://cdn.shopify.com/s/files/1/0431/6843/2288/files/79318644403.pdf
    • https://cdn.shopify.com/s/files/1/0427/4749/4567/files/mibop.pdf
    • https://cdn.shopify.com/s/files/1/0430/5630/0185/files/effectiveness_defined.pdf
    • https://cdn.shopify.com/s/files/1/0438/9172/0347/files/raspberry_pi_emulator_for_windows.pdf
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/xixetefevajekowuseke.pdf
    • https://cdn.shopify.com/s/files/1/0438/2107/2546/files/blank_2020_calendar_uk.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mapiguwidekedod.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_off00005a5d.bin
a16870468bb5e277da39182235ea26406c452d103c7505fdb2ada8589f5276a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A5D 5868 bytes
font_01_sfnt_off00006e5c.bin
8f5268b6646f796ae72a866a4925ef842a4a3167b0874523dda1651354bc1e99		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E5C 14516 bytes

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