Malicious PDF — malware analysis report

Static analysis result for SHA-256 f041f64dc828796a…

MALICIOUS

PDF

50.7 KB Created: 2020-08-31 22:42:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 42bddb002e8f3afcf458c1a2b8177d61 SHA-1: e60ba4eddc1701d6435f5953b9914b8ce5e5872c SHA-256: f041f64dc828796a71bb8aa474d4d5a8bd3d1cae6933249e2270d8a1a68603bb
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a malicious redirector link disguised as a download button, likely intended to lure the user into downloading malware. The document also features a link farm of SEO-optimized PDFs hosted on Shopify, with the primary malicious link pointing to 'https://ttraff.cc/wix?keyword=bandicam+android+apk'. The presence of urgency lures further supports the malicious intent.

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.cc/wix?keyword=bandicam+android+apk
    • https://cdn.shopify.com/s/files/1/0428/2492/5347/files/96923732056.pdf
    • https://cdn.shopify.com/s/files/1/0431/5293/3021/files/nuworigavafabukegi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0396/0731/files/aroma_espresso_bar_menu.pdf
    • https://cdn.shopify.com/s/files/1/0433/6173/0719/files/57973697413.pdf
    • https://cdn.shopify.com/s/files/1/0429/6107/6375/files/todukegutumuvitibemiki.pdf
    • https://cdn.shopify.com/s/files/1/0430/9798/1082/files/98476165878.pdf
    • https://cdn.shopify.com/s/files/1/0428/1732/3175/files/65021178052.pdf
    • https://cdn.shopify.com/s/files/1/0428/6103/5686/files/mupoze.pdf
    • https://cdn.shopify.com/s/files/1/0432/7620/6235/files/92193916659.pdf
    • https://cdn.shopify.com/s/files/1/0435/8547/0623/files/41762827687.pdf
    • https://cdn.shopify.com/s/files/1/0434/5777/3725/files/85690193721.pdf
    • https://cdn.shopify.com/s/files/1/0431/8671/6830/files/71366188255.pdf
    • https://cdn.shopify.com/s/files/1/0437/3292/6616/files/descriptive_statistics_in_research.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067b3.bin
64213c4ec7ee5da2ee9a3b31bfe2cb24a0d90dd83208349c46d2e784fd528142		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67B3 4712 bytes
font_01_sfnt_off0000777d.bin
6e38a1b5dc0f3973faca9f4459f840f44c9a59b5b3ee8efb65fb32a1957d22cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x777D 10192 bytes
font_02_sfnt_off00009a75.bin
39b2f4b99ee08965fd4836f89f628a00cde8346cb181131bba0308e80db8fb67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A75 16092 bytes
font_03_sfnt_off0000af3c.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAF3C 4324 bytes

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