Malicious PDF — malware analysis report

Static analysis result for SHA-256 d706d069fbb00547…

MALICIOUS

PDF

46.1 KB Created: 2020-08-31 03:55:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f50589bea46b57cf0609da5e2805694 SHA-1: 200f9c643ff078dc20132ed33ee8f1d08905feaa SHA-256: d706d069fbb0054778f2bcb39dc447bf8cfd6f91fa3c721f4a1226b03c8880e4
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link farm designed to appear as a "Jeppesen commercial pilot test guide" but redirects to a malicious URL. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the malicious nature of the primary redirector. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, many pointing to benign content, likely to obscure the malicious redirector. 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.com/wix?keyword=jeppesen+commercial+pilot+test+guide
    • https://static.usrfiles.com/ugd/b8c837_4060db543b9e41568b1b0c44969a966b.pdf
    • https://static.usrfiles.com/ugd/b8c837_5f5df364077b4c2c9bb7c1e71aeafdba.pdf
    • https://static.usrfiles.com/ugd/b8c837_29d012bf2c4844658994e1a5db8f2014.pdf
    • https://static.usrfiles.com/ugd/ec0c41_a6ac59fe4156497ea7a0310f32ada2bd.pdf
    • https://cdn.shopify.com/s/files/1/0434/7274/8710/files/asma_ul_husna_with_urdu_meaning_and_wazifa.pdf
    • https://cdn.shopify.com/s/files/1/0433/4485/5195/files/dungeon_master_s_guide_5e_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/4914/0902/files/37439324053.pdf
    • https://cdn.shopify.com/s/files/1/0431/1855/9389/files/lejafajejomarotawidufa.pdf
    • https://cdn.shopify.com/s/files/1/0436/9226/1529/files/new_bhajan_video_mp4.pdf
    • https://cdn.shopify.com/s/files/1/0429/4790/3654/files/jegizov.pdf
    • https://cdn.shopify.com/s/files/1/0435/7187/1912/files/3799822258.pdf
    • https://cdn.shopify.com/s/files/1/0439/7717/9294/files/lagojosivenaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/9952/9121/files/18046533343.pdf
    • https://cdn.shopify.com/s/files/1/0464/7052/9192/files/detail_information_of_aspergillus.pdf
    • https://cdn.shopify.com/s/files/1/0431/4490/4855/files/principles_of_semiconductor_devices_dimitrijev.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_off0000654b.bin
80f90f90b90f11568a87b45f24c151e73f25f778a67de9feddebaf645a13eb54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x654B 5380 bytes
font_01_sfnt_off0000776d.bin
31f5318a0c74218d8a6b9ebecfa79e6c70c693e6e9acfb3c7e06ee3fe1ba0518		 pdf-font-stream PDF embedded font (sfnt) at offset 0x776D 16124 bytes

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