Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c2b1edb8cc6d31b…

MALICIOUS

PDF

44.3 KB Created: 2020-08-24 14:33:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6871d51a9fbe65e15586fef742a628f1 SHA-1: d07a6d8d0e00cd1f2ccb8dce3f6426b11af47048 SHA-256: 9c2b1edb8cc6d31b4f31afa54d5a4e248e6be4a708d0ea1fa1d449d7b0efdaf3
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, a technique often used to lure users to malicious websites. One of the embedded URLs, 'https://ttraff.cc/pify?keyword=gospel+music+worship+songs', is flagged as a known malicious redirector. The document body contains garbled text and what appears to be metadata, but the primary threat comes from the link farm designed to direct users to potentially harmful 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.cc/pify?keyword=gospel+music+worship+songs
    • http://files.mindbodyconnectionmassagepilates.com/uploads/1/3/0/7/130739062/rikudizisevuwi-sisipikiwevavif-zuwotagininize.pdf
    • http://dodomezas.davisonavenuepta.com/uploads/1/3/1/3/131384169/sepeso.pdf
    • https://cdn.shopify.com/s/files/1/0437/8984/4631/files/fmab_op_3.pdf
    • https://cdn.shopify.com/s/files/1/0431/9415/5170/files/left_view_of_binary_tree.pdf
    • https://cdn.shopify.com/s/files/1/0462/6451/6757/files/freepik_template_ppt.pdf
    • https://cdn.shopify.com/s/files/1/0432/2390/8520/files/lake_amador_fishing_report_november_2018.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98029452840.pdf
    • https://cdn.shopify.com/s/files/1/0450/9813/9813/files/zen_alarm_clock_sound.pdf
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/71456658973.pdf
    • https://cdn.shopify.com/s/files/1/0436/9635/7530/files/interactive_spatial_data_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0437/6176/2455/files/16449443408.pdf
    • https://cdn.shopify.com/s/files/1/0431/2625/9876/files/91188514084.pdf
    • https://cdn.shopify.com/s/files/1/0427/5752/1574/files/27832969425.pdf
    • https://cdn.shopify.com/s/files/1/0430/8195/7537/files/celtic_hymns_violin_sheet_music.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_off00006fe3.bin
11a4d319531c903f3722c6dcd8e4cae9b13d5004479577a740edd6f90766270b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FE3 5260 bytes
font_01_sfnt_off000081be.bin
651d0ec18fd85175dcbab72ae716533d32204bdf1462f239b6804451771dbccb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81BE 10244 bytes

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