Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5014e4ecbcd6f9d…

MALICIOUS

PDF

46.9 KB Created: 2020-08-16 21:29:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b3a6cb2e4c4994335f18df26becbf63 SHA-1: c342992c93ebb8cdc3b28979f1681e3da1e1a0d8 SHA-256: b5014e4ecbcd6f9d92a296b0d2132281074f97d6377bbdb5abbfe8c5aa5b1fe3
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru' with a lure related to 'Bee Gees greatest album'. Additionally, the PDF exhibits characteristics of a link farm, embedding numerous external links, many of which point to Shopify domains. The document body, though partially corrupted, contains the same redirector URL. 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.ru/pify?keyword=bee+gees+greatest+album
    • http://files.strngrclothingcompany.com/uploads/1/3/1/4/131437017/midajopel.pdf
    • http://files.baebimusic.ch/uploads/1/3/0/7/130776452/9887652.pdf
    • https://cdn.shopify.com/s/files/1/0431/5778/2690/files/31079437427.pdf
    • https://cdn.shopify.com/s/files/1/0436/2564/4192/files/buku_biologi_kelas_xi_sma.pdf
    • https://cdn.shopify.com/s/files/1/0433/4904/9499/files/20405779605.pdf
    • https://cdn.shopify.com/s/files/1/0434/2707/0119/files/motud.pdf
    • https://cdn.shopify.com/s/files/1/0437/2784/7576/files/biotecnologia_y_agricultura.pdf
    • https://cdn.shopify.com/s/files/1/0434/0645/9029/files/begozowavapi.pdf
    • https://cdn.shopify.com/s/files/1/0433/6022/3382/files/android_imageview_bitmap_too_large.pdf
    • https://cdn.shopify.com/s/files/1/0436/7400/9753/files/cells_alive_animal_cell_worksheet_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0428/0510/0707/files/jesumewuvalovogusi.pdf
    • https://cdn.shopify.com/s/files/1/0433/7437/9157/files/voxuzelebimijizatepaso.pdf
    • https://cdn.shopify.com/s/files/1/0433/4118/5189/files/workforce_planning_model.pdf
    • https://cdn.shopify.com/s/files/1/0435/9503/8877/files/85170161718.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_off00006081.bin
a119e8f0ed1f5255bfdee2bea4ccc103711970b2299e55a07e2cc98ad3b3ec01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6081 4812 bytes
font_01_sfnt_off000070e3.bin
9cdb7e2b4d5403fc8cbec95a48ecd0a7d5c2cba974f03abd13da696d41ccc7be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70E3 15652 bytes
font_02_sfnt_off0000a11b.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA11B 4324 bytes

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