Malicious PDF — malware analysis report

Static analysis result for SHA-256 d34453d6a35cf563…

MALICIOUS

PDF

45.9 KB Created: 2020-09-01 19:29:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad32da12afd9256fa9f1730afa783d9f SHA-1: ad708f69a46f1a2613c2da88ea358b07511f02c1 SHA-256: d34453d6a35cf5639b87add583216a307f2f2c11dcef8dca71a809dcb1cef2fd
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and text related to 'Chicken invaders 1 full game', suggesting a lure. The PDF also exhibits characteristics of a link farm, with numerous embedded links to external PDFs, likely for SEO manipulation or to host further malicious content. No scripts were extracted from this sample.

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.com/wix?keyword=chicken+invaders+1+full+game
    • https://cdn.shopify.com/s/files/1/0438/4463/2738/files/django_form_placeholder_template.pdf
    • https://cdn.shopify.com/s/files/1/0435/2330/9727/files/astm_e8_e8m.pdf
    • https://cdn.shopify.com/s/files/1/0430/6383/6834/files/96126238850.pdf
    • https://static.usrfiles.com/ugd/57c819_5b4dc02282714e5094d801fafdec283b.pdf
    • https://static.usrfiles.com/ugd/d99ef3_17c9987fcc5a4d21b13a9911c0a4c21a.pdf
    • https://static.usrfiles.com/ugd/7ff653_92eef33c857248e7b907ab5c0fe8e632.pdf
    • https://cdn.shopify.com/s/files/1/0430/7668/1882/files/sukavarifedakobegububoje.pdf
    • https://cdn.shopify.com/s/files/1/0429/3056/9382/files/vajewaza.pdf
    • https://cdn.shopify.com/s/files/1/0438/2674/1405/files/jigozurevapenidaton.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gibowutobarifokegibig.pdf
    • https://cdn.shopify.com/s/files/1/0437/4963/8295/files/31216866674.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000058f3.bin
b97ecfa7ec5b8f2dac64d89bf7d16fea27e42d8f02ff166032e83ac363179cf6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58F3 5328 bytes
font_01_sfnt_off00006ad8.bin
7a02da73c5ff24218d04b188db7d31ceb9303d5dedd43b645f18a615a19d9b6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AD8 6068 bytes
font_02_sfnt_off00007a88.bin
9f523b450f1d239f6a19629957998209b758bcfdce3c10f85025ef202a034ca7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A88 9876 bytes
font_03_sfnt_off00009c54.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C54 4324 bytes

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