Malicious PDF — malware analysis report

Static analysis result for SHA-256 325c8910cf8a8db2…

MALICIOUS

PDF

54.5 KB Created: 2020-09-05 20:45:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: de55bec9d6f87781834355f6b779a6ae SHA-1: 1a899ba2424c6f76894fb2b00718376281391c06 SHA-256: 325c8910cf8a8db23e46b7d368bf51b25030f9a54da257bd55f4c840e99751ea
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with one identified as a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/wix?keyword=ilac+example+answer+contract+law', which is flagged as malicious. The presence of numerous external PDF links, including one hosted on Shopify, suggests a link farm or redirection strategy to obscure the ultimate destination.

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=ilac+example+answer+contract+law In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3898/8709/files/put_the_following_sentences_into_reported_speech.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6925/1492/files/68902445244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1718/1083/files/github_merge_repositories.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7548/5348/files/30278060624.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/fe83c3_830bceab350845ebba9eb45b71258536.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/64d889_27c3d06a28e84ff99c859ac5aeb3d0b3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6369/7817/files/wogolonevejudagalijum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/5648/7589/files/blackberry_q10_android_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6504/0286/files/vokogokax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2897/0647/files/aithihyamala_part_8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7850/7934/files/38882513838.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008dc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DC0 2828 bytes
SHA-256: 85b692c1c636aed9ab1240d2a7361179fdd6c0849396a06064984f922e967b4f
font_01_sfnt_off000097ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97BA 5176 bytes
SHA-256: 544737bdbf76bbf9cabaf84c7b5968bff157bcbb3951ce5e97b7fe082b7c4b16
font_02_sfnt_off0000a950.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA950 9820 bytes
SHA-256: 20580ce9aaa3e378c687bc145281fc885a4fc533f5aaca76ff167eef9a9d8788

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