Malicious PDF — malware analysis report

Static analysis result for SHA-256 90d0246980c3f774…

MALICIOUS

PDF

38.8 KB Created: 2020-08-18 21:51:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74e658178592c153d04ec9ffe31a4a97 SHA-1: 239c3de38e9f764be49165808173cefef306c86b SHA-256: 90d0246980c3f774c545f78a312eb8c3cd956aa91aefc23209e72375ee26b1a9
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=raffle+drawing+entry+form+template'. This indicates the document's primary purpose is to redirect users to malicious sites. Additionally, a heuristic for a PDF link farm was triggered, suggesting the document is part of a larger SEO manipulation effort to distribute malicious links. The document body, though heavily obfuscated, contains the same lure text and URLs.

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=raffle+drawing+entry+form+template
    • http://bexerevo.lericiapartments.com/uploads/1/3/1/4/131453540/ruvawoxizuvi.pdf
    • http://files.cookwithjames.com/uploads/1/3/2/6/132681304/mifos_neneram_lafusuxupov_matosexux.pdf
    • http://files.championsgymnasticscenter.net/uploads/1/3/2/6/132682655/dibadunalelasavegenu.pdf
    • https://cdn.shopify.com/s/files/1/0435/8098/1403/files/1165412147.pdf
    • https://cdn.shopify.com/s/files/1/0434/3113/3340/files/jegitilegijupowenimujot.pdf
    • https://cdn.shopify.com/s/files/1/0432/2951/1835/files/craftsman_router_table_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/mazadif.pdf
    • https://cdn.shopify.com/s/files/1/0427/5660/4070/files/86884362409.pdf
    • https://cdn.shopify.com/s/files/1/0433/6749/7880/files/gunavakud.pdf
    • https://cdn.shopify.com/s/files/1/0440/8338/0376/files/zinawamigiki.pdf
    • https://cdn.shopify.com/s/files/1/0431/5843/8037/files/49105778520.pdf
    • https://cdn.shopify.com/s/files/1/0438/5990/2624/files/brilinta_patient_assistance.pdf
    • https://cdn.shopify.com/s/files/1/0451/3749/4169/files/69409286739.pdf
    • https://cdn.shopify.com/s/files/1/0429/5183/5811/files/xigesijujagixezidoreru.pdf
    • https://cdn.shopify.com/s/files/1/0438/4748/3552/files/33827769284.pdf
    • https://cdn.shopify.com/s/files/1/0433/9548/1754/files/kathy_scruggs_reporter_died.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_off00005bb6.bin
d87ed882fc5c33256ee29a364ec3c7ec898866ab8cf8f1be6ad51893123183f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB6 5384 bytes
font_01_sfnt_off00006e15.bin
302658a65807d6c4e0fe3bb567c09ced75509125a36280cb31962258f348835d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E15 9496 bytes

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