Malicious PDF — malware analysis report

Static analysis result for SHA-256 63ddef2e992dbe42…

MALICIOUS

PDF

46.4 KB Created: 2020-08-30 11:04:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b1d88af5d040e6bff75af5a2d47416e5 SHA-1: 7eaa3446bdc27bc7b0046262bb360faa57ddd876 SHA-256: 63ddef2e992dbe42a352bcabfe7bc05320e29e29f4b11a2fbd1e4fa1b057faeb
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical redirector link pointing to 'https://ttraff.com/wix?keyword=haf%25C4%25B1za+kart%25C4%25B1+%25C5%259Fifre+k%25C4%25B1rma+program%25C4%25B1+in'. This URL is likely part of a phishing or scam campaign, attempting to direct users to malicious content. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. The presence of a password-protected archive lure heuristic suggests a multi-stage attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.com/wix?keyword=haf%25C4%25B1za+kart%25C4%25B1+%25C5%259Fifre+k%25C4%25B1rma+program%25C4%25B1+in
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/5857/7051/files/what_is_an_example_of_a_conglomerate.pdf
    • https://cdn.shopify.com/s/files/1/0428/1729/0406/files/tedefirozojetodug.pdf
    • https://cdn.shopify.com/s/files/1/0435/1872/2216/files/automotive_engine_parts_and_functions.pdf
    • https://cdn.shopify.com/s/files/1/0432/0909/7384/files/zoxisotebifewabujewoze.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/91300886864.pdf
    • https://static.usrfiles.com/ugd/b8c837_1318525437d04026a36bb8fd533469f4.pdf
    • https://static.usrfiles.com/ugd/97aff7_a5b4a1f5562749d3bf993a35ad676568.pdf
    • https://cdn.shopify.com/s/files/1/0430/8946/1402/files/dibuxanipabulizamibegibir.pdf
    • https://cdn.shopify.com/s/files/1/0435/6135/3371/files/1541939289.pdf
    • https://cdn.shopify.com/s/files/1/0433/8122/7672/files/consulting_case_interview_frameworks.pdf
    • https://cdn.shopify.com/s/files/1/0436/2931/4206/files/33243581475.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007278.bin
aa3c6240c940649d11ae8f07427a2265691cde5f07f1ac8a75d74d7354854df1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7278 5368 bytes
font_01_sfnt_off000084af.bin
4b882c36d1d6481023571daf09fe7935b130d5e6ee93fff9c1fd95b61f421cc4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84AF 12300 bytes

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