Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1f62b12562774c4…

MALICIOUS

PDF

44.1 KB Created: 2020-08-28 10:40:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 963e58f6b687600222cf860e3cd4cd88 SHA-1: 917b34f1de51bfaf502db35f8893bbf66b0435e1 SHA-256: b1f62b12562774c4e3b7dc118bee9c961b610aa83ca92af7976f6b08ee504fd1
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, includes the text 'dc comics series' alongside the malicious URL, suggesting a lure to entice users to click the link. The presence of numerous other PDF links, many hosted on Shopify, indicates a potential link farm or SEO manipulation tactic to distribute malicious content. 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.com/pify?keyword=dc+comics+series
    • http://kipoxib.mvfota.org/uploads/1/3/0/7/130775403/b2f2e.pdf
    • http://files.dandelionridgefarmky.com/uploads/1/3/2/7/132741352/paxevif.pdf
    • http://files.gsskids.org/uploads/1/3/0/7/130738596/jawakegesa.pdf
    • https://cdn.shopify.com/s/files/1/0431/8999/3635/files/51150818383.pdf
    • https://cdn.shopify.com/s/files/1/0464/0243/7275/files/battle_angel_alita_manga_mega.pdf
    • https://cdn.shopify.com/s/files/1/0430/9532/6887/files/87575984005.pdf
    • https://cdn.shopify.com/s/files/1/0437/2401/3722/files/bowling_ball_purchase_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/7035/7661/files/62284757463.pdf
    • https://cdn.shopify.com/s/files/1/0429/9302/5187/files/damodaran_applied_corporate_finance_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/3258/4098/files/twisted_fate_guide_mobafire.pdf
    • https://cdn.shopify.com/s/files/1/0430/7058/7029/files/asthma_medication_chart.pdf
    • https://cdn.shopify.com/s/files/1/0433/0107/7142/files/diwobisuwerewitizakowa.pdf
    • https://cdn.shopify.com/s/files/1/0432/0926/1218/files/turujibu.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_off00006ee6.bin
fdb489808958092a9f583d7ee3e25e1a8327e04c1f2113f8991108812737c411		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EE6 4704 bytes
font_01_sfnt_off00007ecc.bin
abb5b7be344dbcf44d36ebc5c055a88be09d4b8fff067c08bab871bd3530a981		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7ECC 10984 bytes

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