Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1465ea67aa24cae…

MALICIOUS

PDF

41.3 KB Created: 2020-09-01 03:48:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f1d3c3a64ed7d4247784e81488ec1f4 SHA-1: a811bff036f18c5caafc89e69b495b2de0752085 SHA-256: e1465ea67aa24caeb633781b439a48889e25f85a55aa9e0e5dce2e3f0fadec4c
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/wix?keyword=pierre+bourdieu+habitus+pdf'. Additionally, it exhibits a PDF link farm behavior, embedding numerous external links, many of which point to shopify.com domains. The document body, though heavily obfuscated, contains the malicious URL, suggesting an attempt to disguise the malicious intent. The primary attack pattern involves luring the user to click on the malicious redirector URL.

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=pierre+bourdieu+habitus+pdf
    • https://cdn.shopify.com/s/files/1/0436/1083/3058/files/bearing_and_azimuth.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/buffer_systems_in_the_body.pdf
    • https://cdn.shopify.com/s/files/1/0434/1363/5226/files/verithanam_vijay_video_song.pdf
    • https://cdn.shopify.com/s/files/1/0434/8477/4552/files/civil_rights_movement_fact_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0459/2658/0375/files/72249261959.pdf
    • https://static.usrfiles.com/ugd/dc51bb_a4b8c293620a4ff8a572e850f4abfd08.pdf
    • https://static.usrfiles.com/ugd/90423f_61d5d6970464465b99bbffa658630ace.pdf
    • https://static.usrfiles.com/ugd/fe83c3_1794d84fee2247dc9e50ef17820c8124.pdf
    • https://static.usrfiles.com/ugd/b50c55_13eebfe397cc46629710542af0c45b9e.pdf
    • https://static.usrfiles.com/ugd/b8c837_d2cde38818a04cc583ac053270201db2.pdf
    • https://static.usrfiles.com/ugd/f1780b_5f5fa2981e974f7e92a004e0f59374d3.pdf
    • https://static.usrfiles.com/ugd/80bfa9_5192d1a843184aa1aa04c77731daf151.pdf
    • https://static.usrfiles.com/ugd/b8c837_2fe25d6526324c378ceb3e72ea834f89.pdf
    • https://cdn.shopify.com/s/files/1/0468/0374/6965/files/download_vpn_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/8413/6086/files/97660165844.pdf
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/16793404407.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_off00006541.bin
d2e6a745e6e4c5ecb8537734735ab6f105b52e51d0e071635aa56dbd1e1a1d9c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6541 5240 bytes
font_01_sfnt_off000076ff.bin
48fb1406835f845f36e693d6d758d70bd82692eb42b773778e38086892b19aeb
pdf-font-stream PDF embedded font (sfnt) at offset 0x76FF 9768 bytes