Malicious PDF — malware analysis report

Static analysis result for SHA-256 9be700604b97f2e3…

MALICIOUS

PDF

50.2 KB Created: 2020-08-17 06:50:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: edb157c5fb4e2ade68d484be2a596641 SHA-1: 0460bb103048d0a141a40efbc8911288d8dab069 SHA-256: 9be700604b97f2e3d1f2213160a890153b3f2e41be171c6f015c9cb0f3d387ac
130 Risk Score

Malware Insights

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

The PDF file contains a prominent link that redirects to a malicious URL, disguised as a download for 'Total conquest offline apk unlimited'. The PDF also features a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic to distribute malicious content. The presence of a visual download button further supports the lure.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=total+conquest+offline+apk+unlimited
    • http://files.condorcommunitycentre.com/uploads/1/3/1/4/131437873/f37c2fa371c439.pdf
    • http://files.uwmcm.org/uploads/1/3/1/4/131407274/a3b25db24f.pdf
    • https://cdn.shopify.com/s/files/1/0429/2630/9543/files/15678217957.pdf
    • https://cdn.shopify.com/s/files/1/0428/3308/4575/files/gusalud.pdf
    • https://cdn.shopify.com/s/files/1/0433/3171/5225/files/84573613477.pdf
    • https://cdn.shopify.com/s/files/1/0448/5795/0370/files/ecologia_de_bosques_tropicales.pdf
    • https://cdn.shopify.com/s/files/1/0430/5397/3657/files/spatial_awareness_test.pdf
    • https://cdn.shopify.com/s/files/1/0435/1547/8176/files/lagexisemad.pdf
    • https://cdn.shopify.com/s/files/1/0440/3852/0997/files/big_green_egg_recipe_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/2995/4721/files/mubewekuwijokasuwido.pdf
    • https://cdn.shopify.com/s/files/1/0432/6899/7284/files/wibofuda.pdf
    • https://cdn.shopify.com/s/files/1/0434/1825/5510/files/missoula_weather_hourly.pdf
    • https://cdn.shopify.com/s/files/1/0434/5869/1232/files/4119914443.pdf
    • https://cdn.shopify.com/s/files/1/0452/4287/6061/files/21541576615.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fulefevizurosojasi.pdf
    • https://cdn.shopify.com/s/files/1/0428/4760/0796/files/zexuvamurogutijirofamo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f78.bin
965de87e3bb797df7d18d95c6f27783260fdd727b3acfe046652354c718f8462
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F78 5344 bytes
font_01_sfnt_off0000819c.bin
834b2f24edd4f29bc1768429699b78e6dbde15520aa30d8f947a303bb7309d19
pdf-font-stream PDF embedded font (sfnt) at offset 0x819C 10316 bytes
font_02_sfnt_off0000a53e.bin
c3d0ee408bee49a88931d2ac630a9fb52e88a46fabab5a72aa19e78bbe1d3826
pdf-font-stream PDF embedded font (sfnt) at offset 0xA53E 16376 bytes