Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d806b74b1c431b3…

MALICIOUS

PDF

51.0 KB Created: 2020-08-10 23:45:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d60dc5f0dcf2a7767660688771c2a958 SHA-1: 7ea651242b894a4cc111408f3509e278bbfdf8e3 SHA-256: 4d806b74b1c431b36a1f728afcbcc2196b4e88bd991f776a15f9fad422114e32
128 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 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains. The document body contains a call-to-action phrase, reinforcing the lure. The primary malicious link is 'https://ttraff.com/pify?keyword=allopathic+medicine+book+in+urdu+pdf+free+download', which likely serves as a gateway to further malicious content.

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.com/pify?keyword=allopathic+medicine+book+in+urdu+pdf+free+download
    • http://files.elementsofgray.com/uploads/1/3/2/7/132712558/kifoxu.pdf
    • http://difenobu.wherechangeiscertain.org/uploads/1/3/0/7/130776407/5746772.pdf
    • http://zizod.orderkupels.com/uploads/1/3/1/8/131857054/14a03fcd6.pdf
    • http://files.familylifecommunity.net/uploads/1/3/2/3/132303229/7a7dd8.pdf
    • http://nipemeko.dralexischesney.com/uploads/1/3/1/3/131398140/23c2941781bd4c8.pdf
    • https://cdn.shopify.com/s/files/1/0443/8907/3062/files/amar_ujala_newspaper_file_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/0061/7381/files/74549414696.pdf
    • https://cdn.shopify.com/s/files/1/0433/1077/6478/files/95066292782.pdf
    • https://cdn.shopify.com/s/files/1/0432/9707/9460/files/masogofedubilajer.pdf
    • https://cdn.shopify.com/s/files/1/0432/4386/4224/files/directv_5_digit_codes.pdf
    • https://cdn.shopify.com/s/files/1/0435/7976/8995/files/tejaruvu.pdf
    • https://cdn.shopify.com/s/files/1/0439/2468/4955/files/programa_para_traducir_de_aleman_a_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0431/0047/1456/files/kobipejirenawidugajarebo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6538/4866/files/49232836543.pdf
    • https://cdn.shopify.com/s/files/1/0427/9212/4572/files/fekolotefafekolotijadanix.pdf
    • https://cdn.shopify.com/s/files/1/0437/9135/1969/files/world_edit_bukkit.pdf
    • https://cdn.shopify.com/s/files/1/0428/6211/7031/files/zipunuvak.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/63826094215.pdf
    • https://cdn.shopify.com/s/files/1/0430/1075/2663/files/87329766738.pdf
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/kirakejuxumijofaxodorir.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_off000065dc.bin
3e3690cd9746a673d8ca30e76f5746eea7611db796afa896e0fb749e6fe17129		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65DC 5384 bytes
font_01_sfnt_off00007808.bin
b6a77f67023bb878b479ae221b9433dc8c47415053a92bdce4facae5c1e584e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7808 10296 bytes
font_02_sfnt_off00009b25.bin
4ab303ebe4e1eb5ac79725b7e016b2ccf8d986cf03ba83279cd18338e752ea03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B25 16108 bytes
font_03_sfnt_off0000aff6.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAFF6 4324 bytes

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