Malicious PDF — malware analysis report

Static analysis result for SHA-256 a016036be05bc81b…

MALICIOUS

PDF

54.8 KB Created: 2020-07-30 07:06:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b6e92ac382f049ad35dd2142f82d41a4 SHA-1: 29ae90e62d23d30b64287d59cf86e53d3a41e21b SHA-256: a016036be05bc81be46fa14394c040f42eddaf3cb909b04266171be12dbcf779
150 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The primary redirector URL is https://ttraff.cc/pify?keyword=gatineau+park+trails+pdf. The document body, though heavily obfuscated, appears to be a lure related to Gatineau Park trails.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/pify?keyword=gatineau+park+trails+pdf
    • http://files.4theloveofrocks.com/uploads/1/3/0/7/130776200/5475342.pdf
    • http://files.talkyogaslp.com/uploads/1/3/2/3/132302963/2671630.pdf
    • http://files.motiontmb.com/uploads/1/3/2/6/132681579/basitapeta_xokolatameris.pdf
    • http://files.achirohealth.com/uploads/1/3/1/4/131437535/fefadadiluboxap-liseku-puger-jixinopo.pdf
    • http://files.diaryoffaith.com/uploads/1/3/2/7/132740463/0dee46649592.pdf
    • https://cdn.shopify.com/s/files/1/0433/5511/1589/files/ropegaguvelujabijupof.pdf
    • https://cdn.shopify.com/s/files/1/0430/9050/9973/files/ridijufeminapuxepali.pdf
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/61546418151.pdf
    • https://cdn.shopify.com/s/files/1/0437/6294/2106/files/sakomejabedidalugudutigaz.pdf
    • https://cdn.shopify.com/s/files/1/0430/4479/8613/files/91169488231.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/difasadoxaneromasuvakuxa.pdf
    • https://cdn.shopify.com/s/files/1/0435/6007/5427/files/70002839128.pdf
    • https://cdn.shopify.com/s/files/1/0432/2243/3953/files/70557029148.pdf
    • https://cdn.shopify.com/s/files/1/0435/9448/1821/files/88387429970.pdf
    • https://cdn.shopify.com/s/files/1/0436/8983/6697/files/kumaxerolanujin.pdf
    • https://cdn.shopify.com/s/files/1/0430/3205/1873/files/86745912233.pdf
    • https://cdn.shopify.com/s/files/1/0437/5638/8510/files/kojumuwiniwonevud.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_off000083cc.bin
e24f03b50957e905fcbaa8db55ed65df7c7eaa4a12bfd0acfac7a746361aa015
pdf-font-stream PDF embedded font (sfnt) at offset 0x83CC 4904 bytes
font_01_sfnt_off00009481.bin
134dfc52a37a2a8687daffa76fa653182bea5046aa3368856a6cf38154054a10
pdf-font-stream PDF embedded font (sfnt) at offset 0x9481 9996 bytes
font_02_sfnt_off0000b6f8.bin
844fb27054059bbe8e24107f7623dfc8b3714af0429cc888d8296577745ef093
pdf-font-stream PDF embedded font (sfnt) at offset 0xB6F8 16208 bytes