Malicious PDF — malware analysis report

Static analysis result for SHA-256 86bc69720ab9db38…

MALICIOUS

PDF

49.5 KB Created: 2020-09-06 11:52:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62a4cb8cec550cc87d50a56f7b8f77b9 SHA-1: 20c8352f4ecd6c28c56a77dcfac9796f271a08d6 SHA-256: 86bc69720ab9db38b942974921825abb9e5fb141a0f2bcea6f66a92fddccbf7a
120 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, specifically `https://ttraff.link/wix?keyword=acog+pap+guidelines+pregnancy`. This link is presented within the document body, disguised as medical guidelines, to entice users to click. The PDF also exhibits characteristics of a link farm, with numerous external links, further supporting a malicious intent to redirect users to potentially harmful sites.

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.link/wix?keyword=acog+pap+guidelines+pregnancy
    • https://static.usrfiles.com/ugd/b4a829_a7bc1b6675cb41aea141dade72469771.pdf
    • https://static.usrfiles.com/ugd/3649d2_5428fb94156f4118bc267e15be080231.pdf
    • https://static.usrfiles.com/ugd/c1de29_a100df8e23324c5a97be0df868536dfa.pdf
    • https://static.usrfiles.com/ugd/8c0e65_8799fc96aff64673a659e6f710decee1.pdf
    • https://static.usrfiles.com/ugd/4a6c57_7f9624c4d9aa457a9cf35faf0adca480.pdf
    • https://static.usrfiles.com/ugd/3615fb_8cbea6bf147c4b65b9887818b3d4e1d2.pdf
    • https://static.usrfiles.com/ugd/fb41f9_2a1c7bcd2d314019abca0b5fab1aff51.pdf
    • https://cdn.shopify.com/s/files/1/0433/9872/5793/files/29287681801.pdf
    • https://cdn.shopify.com/s/files/1/0435/0646/6982/files/mindset_the_new_psychology_of_success.pdf
    • https://cdn.shopify.com/s/files/1/0438/1625/5645/files/wumidol.pdf
    • https://cdn.shopify.com/s/files/1/0431/2583/3882/files/simple_past_negative_and_interrogative_form_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0436/9963/4326/files/barojizuvixejuruwuxof.pdf
    • https://cdn.shopify.com/s/files/1/0430/7160/2855/files/nexus_2_torrent.pdf
    • https://cdn.shopify.com/s/files/1/0436/1119/3501/files/movie_genres.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_off0000770e.bin
2b1681d8aa1dcffd7c38bb64569f3be8bc8f6f62e96fd65ed58603f162f916cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x770E 5132 bytes
font_01_sfnt_off0000887f.bin
a83ff8f2c43e8f1a1168c91aaec15adc4edbdc5c3b36ec197eafe28ce6607282		 pdf-font-stream PDF embedded font (sfnt) at offset 0x887F 9980 bytes
font_02_sfnt_off0000aa9d.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA9D 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.