Malicious PDF — malware analysis report

Static analysis result for SHA-256 44335541eab01057…

MALICIOUS

PDF

42.7 KB Created: 2020-08-14 17:49:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 32bf9bf4a71595d38bb5b9350a844b00 SHA-1: fa22b567e759640363ca3c0d1a602b3dc87f0b4b SHA-256: 44335541eab01057f8d404cf3f2f448078d96ecbc96eea5be7b66ba91a69da81
160 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.com/pify?keyword=buzz+marketing+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, contains text that suggests a lure related to marketing and potentially a scam, aligning with the 'SE_ADVANCE_FEE_SCAM_LURE' heuristic. The presence of a malicious redirector indicates an attempt to lead the user to a harmful destination.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=buzz+marketing+pdf
    • http://zutonumag.shopthepoint.com/uploads/1/3/1/1/131164250/budosobalanet_vibatejeteso_pipim_xogame.pdf
    • http://files.rachelmeetsplanet.com/uploads/1/3/1/3/131379296/duwuvubudeko-gigubirulax-beregusuvu-gulokaza.pdf
    • https://cdn.shopify.com/s/files/1/0429/6222/3263/files/bioshock_rapture_ita_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/2273/7830/files/44131138945.pdf
    • https://cdn.shopify.com/s/files/1/0429/1559/4393/files/8473600249.pdf
    • https://cdn.shopify.com/s/files/1/0430/3791/7333/files/megafazovokitu.pdf
    • https://cdn.shopify.com/s/files/1/0434/9011/5748/files/icyveins_resto_shaman.pdf
    • https://cdn.shopify.com/s/files/1/0429/9309/0714/files/xefusolibodemozokat.pdf
    • https://cdn.shopify.com/s/files/1/0430/1278/4277/files/68788781319.pdf
    • https://cdn.shopify.com/s/files/1/0430/4742/0066/files/femaxitidolixedalijikid.pdf
    • https://cdn.shopify.com/s/files/1/0429/4528/2214/files/fegugoxosoxuzojilininire.pdf
    • https://cdn.shopify.com/s/files/1/0432/5113/8715/files/vonepusiromapasumiw.pdf
    • https://cdn.shopify.com/s/files/1/0430/5806/9655/files/fopuzev.pdf
    • https://cdn.shopify.com/s/files/1/0429/0864/7580/files/vuzidi.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_off00006920.bin
8a69f418e9b05e14c217a124edc94c23e79c851f24dacae018371bff4cb5b725
pdf-font-stream PDF embedded font (sfnt) at offset 0x6920 5312 bytes
font_01_sfnt_off00007b23.bin
478d44aac973434d3c51405c03bff0a50fc73975673261bee74b9fd225a644e9
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B23 10292 bytes