Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c8cb31ae1c6b71b…

MALICIOUS

PDF

48.6 KB Created: 2020-08-30 02:49:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: acb05ce1b35d34e0899c0326d4e2e343 SHA-1: a2095d57ee0cee8b5981778d571d78a39956a43c SHA-256: 6c8cb31ae1c6b71b9840219a26d2fadfa45b2f9b17350fea65d28fb2f4049819
154 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, characteristic of a link farm. One of these links, 'https://ttraff.cc/wix?keyword=titan+eclipse+phase', is identified as a known malicious redirector. The presence of this malicious link and the overall structure suggest an attempt to lure users to malicious infrastructure, likely as part of a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=titan+eclipse+phase
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0432/2770/9597/files/depimafaregabesisupipop.pdf
    • https://cdn.shopify.com/s/files/1/0430/5934/7618/files/niridajawip.pdf
    • https://cdn.shopify.com/s/files/1/0440/6679/9766/files/dirty_grandpa_parents_guide.pdf
    • https://cdn.shopify.com/s/files/1/0436/8482/3205/files/lubulelewaketu.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/wikufegadadoxasijejozozel.pdf
    • https://static.usrfiles.com/ugd/ddb60a_a00c6a6b878047b6be49536c2bfe0909.pdf
    • https://static.usrfiles.com/ugd/df4650_b71b0e524b2f4edc99a32e539f74b82c.pdf
    • https://static.usrfiles.com/ugd/b8c837_f4aaed9214814f42bbb342f784210ddc.pdf
    • https://static.usrfiles.com/ugd/4725f1_762923b4e8ff4cd8b9b3f171dd91c367.pdf
    • https://static.usrfiles.com/ugd/eb4c03_5b23a9caa1bc40b5b1d6f65624f5bea1.pdf
    • https://static.usrfiles.com/ugd/b8c837_e9b01d07d95c4b9e85287a58ed98cc9e.pdf
    • https://static.usrfiles.com/ugd/b8c837_8cfe5a9e99e744bb962bd9832dc66cee.pdf
    • https://cdn.shopify.com/s/files/1/0430/5820/0725/files/zojezoguzawosirebaxef.pdf
    • https://cdn.shopify.com/s/files/1/0428/4320/9895/files/54105391927.pdf
    • https://cdn.shopify.com/s/files/1/0440/7663/0181/files/84201936331.pdf
    • https://cdn.shopify.com/s/files/1/0438/7959/6187/files/rifemuziwezawageriril.pdf
    • https://cdn.shopify.com/s/files/1/0432/8115/4198/files/present_progressive_questions_and_answers.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007621.bin
9c3780410cb1fd50c3d6bbb9c1b7a5239d4e584126cfe1aade5b6f1705389c87		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7621 4552 bytes
font_01_sfnt_off0000857d.bin
935d70932a56c1da4d26c47f7688dc04e9b2b300ab47de9c892c9e2e6ce7d47b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x857D 9944 bytes
font_02_sfnt_off0000a77d.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA77D 4324 bytes

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