Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1207f071636e1b9…

MALICIOUS

PDF

54.7 KB Created: 2020-08-19 12:26:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 91e17b3870d5f1d5f031cb9fb677c36c SHA-1: 1818562471eae2cfdca86c8df6ec6655dae439b5 SHA-256: f1207f071636e1b9bd9cc22d103b0a8f08096ee729a20faefbc95a43a5e37ea2
120 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, includes the same URL and a list of other URLs, many hosted on Shopify, likely as part of a link farm to improve search engine ranking for malicious content. The primary intent appears to be directing users to malicious infrastructure via the ttraff.com redirector.

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/pify?keyword=evaluation+of+mucoadhesive+drug+delivery+systems+pdf
    • http://files.unokidz.com/uploads/1/3/1/4/131437711/kolugorozuralimexupa.pdf
    • http://janitaj.bridlewiseridingacademy.com/uploads/1/3/0/7/130775195/7e65e0e5a7.pdf
    • http://files.karenfornes.com/uploads/1/3/0/7/130738644/rovixoxu_wupovanofagumo_bamimo.pdf
    • http://files.beatlemaniax.net/uploads/1/3/0/7/130775950/4848058.pdf
    • http://files.1travelshop.com/uploads/1/3/0/8/130813639/zibajotumipazav_tunafe_tukiseti_zetakomu.pdf
    • https://cdn.shopify.com/s/files/1/0432/7351/9272/files/mezudizesesatolivagizorul.pdf
    • https://cdn.shopify.com/s/files/1/0428/9649/0655/files/beatles_anthology_book.pdf
    • https://cdn.shopify.com/s/files/1/0433/2974/9145/files/17838712283.pdf
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/vezezilesisob.pdf
    • https://cdn.shopify.com/s/files/1/0441/2994/3704/files/block_ads_android_no_root_xda.pdf
    • https://cdn.shopify.com/s/files/1/0434/3149/3784/files/90699349955.pdf
    • https://cdn.shopify.com/s/files/1/0429/6572/9429/files/gozosodosevixefumux.pdf
    • https://cdn.shopify.com/s/files/1/0437/3400/7973/files/12329466539.pdf
    • https://cdn.shopify.com/s/files/1/0431/2278/6466/files/wojujepobuvurinemam.pdf
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/logical_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/9639/9269/files/74345100957.pdf
    • https://cdn.shopify.com/s/files/1/0432/3727/7855/files/6258821677.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_off00007ec8.bin
d5c71426d3f9879046e962357e715dcb4cc5210ef2ab68b6c67bd74750dbca57		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC8 1836 bytes
font_01_sfnt_off000087bd.bin
1ca9711e806797b7918a9bfa0dea3f8d6855a6c77a977e9e94370c4582281da7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87BD 5572 bytes
font_02_sfnt_off00009a84.bin
91c81b8a30552f933cd50ef4bd4a7d209a4752faa8aa279aebe8b8a7312292d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A84 10468 bytes
font_03_sfnt_off0000be58.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBE58 4324 bytes

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