Malicious PDF — malware analysis report

Static analysis result for SHA-256 acfeb45985743b34…

MALICIOUS

PDF

49.8 KB Created: 2020-08-29 05:11:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d1f098175a062a8aac954a05929c674 SHA-1: da8956562d3348917d48770492df3ebbd6564f46 SHA-256: acfeb45985743b34e845e200e839f528f12613364ffd8181cc898ba56ca9dbb4
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one identified as a malicious redirector. This indicates a likely attempt to direct users to malicious websites, potentially for phishing or malware distribution. The presence of a mass external PDF link farm further supports this, suggesting an SEO poisoning tactic to drive traffic. No scripts were extracted, limiting the analysis of direct payload execution.

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/wix?keyword=qi+gong+narbonne
    • https://cdn.shopify.com/s/files/1/0441/0851/3432/files/glatiramer_acetate_prescribing_information.pdf
    • https://cdn.shopify.com/s/files/1/0436/9183/5547/files/32694746646.pdf
    • https://cdn.shopify.com/s/files/1/0433/3161/6923/files/noxupozurazimeli.pdf
    • https://cdn.shopify.com/s/files/1/0431/0201/1548/files/6133717458.pdf
    • https://cdn.shopify.com/s/files/1/0443/4988/2524/files/zedezuvetidog.pdf
    • https://cdn.shopify.com/s/files/1/0439/4529/6027/files/map_reading_for_west_africa.pdf
    • https://cdn.shopify.com/s/files/1/0434/5682/3453/files/mozart_turkish_march_violin_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0429/0553/4620/files/trico_course_guide.pdf
    • https://cdn.shopify.com/s/files/1/0434/3159/2088/files/anemia_in_pregnancy.pdf
    • https://static.usrfiles.com/ugd/b8c837_9c7f8045d3244e7bbbeaa3b1f5973342.pdf
    • https://static.usrfiles.com/ugd/b8c837_e7db4e5df721457397b4970c38ae0436.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_off00005bb8.bin
6801757429cf7342b447afb66d4c7dd89c958c6dcd497172d6e13f59203a39d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB8 5892 bytes
font_01_sfnt_off00007016.bin
a08578f0be3e18f13959721c143226da3f089e9c496e3cecf305dbbe690632c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7016 4844 bytes
font_02_sfnt_off0000809e.bin
309b1be36d7dedb3765013e4422a6fc92eb50d44a13b3eb14fe9cfac7abe5272		 pdf-font-stream PDF embedded font (sfnt) at offset 0x809E 10456 bytes
font_03_sfnt_off0000a4a1.bin
028dbaa76d48ae99b02248bacea50134e27ed131f5dd39e25ac401de8961e19b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA4A1 16312 bytes

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