Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f982046d51b52dd…

MALICIOUS

PDF

47.4 KB Created: 2020-08-28 06:22:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6167de7c0db9d9c91bae667f193d7fe8 SHA-1: 83ff9fde12fdfaf90b895bd113103100c4dcddd3 SHA-256: 3f982046d51b52dddb3604a014b708119a15f81004136e516593aae6231dbf2c
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique often used to create link farms for SEO poisoning or to distribute malicious content. One of the embedded URLs, 'https://ttraff.com/pify?keyword=marguerite+baker+boss', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other links pointing to Shopify domains, suggesting a coordinated effort to distribute content through these platforms. The primary intent appears to be directing users to potentially harmful websites.

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=marguerite+baker+boss
    • http://files.beckydolleycpa.com/uploads/1/3/1/6/131606046/591554.pdf
    • http://files.america-wecare.com/uploads/1/3/0/7/130740573/feboletilu-rajomemob-jigagolenelolap-tagemuko.pdf
    • http://files.nvtf1.org/uploads/1/3/1/4/131483034/bowijizurugupe-bepuga-vetux.pdf
    • http://zorupizu.mrslmeyer.com/uploads/1/3/1/3/131398232/lolabov_xidovasuga_gujimanis.pdf
    • https://cdn.shopify.com/s/files/1/0433/7978/5891/files/26377627547.pdf
    • https://cdn.shopify.com/s/files/1/0433/9744/7836/files/malformaciones_cardiacas_congenitas_cianoticas.pdf
    • https://cdn.shopify.com/s/files/1/0430/7278/2489/files/bejukevalozimewedu.pdf
    • https://cdn.shopify.com/s/files/1/0434/2225/3208/files/photosynthesis_and_cellular_respiration_quiz.pdf
    • https://cdn.shopify.com/s/files/1/0435/9749/6483/files/90996699158.pdf
    • https://cdn.shopify.com/s/files/1/0463/5007/4017/files/jemomaz.pdf
    • https://cdn.shopify.com/s/files/1/0433/8286/6072/files/nevuxutesadigalinuse.pdf
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/arabic_picture_dictionary.pdf
    • https://cdn.shopify.com/s/files/1/0465/0840/8982/files/doctor_strange_dual_audio_720p_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/2833/3212/files/zozewupamito.pdf
    • https://cdn.shopify.com/s/files/1/0429/2267/2284/files/chiari_malformation_type_1_death_rate.pdf
    • https://cdn.shopify.com/s/files/1/0429/7487/1715/files/89294840492.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_off00006f2b.bin
5b5d09520d88f277d01b71d800ebfeaed7c1361856f75e14fb2708cf59c64f9e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F2B 4020 bytes
font_01_sfnt_off00007cf9.bin
9b4a7af0c81f5b3de3c635b9d14d426a6f24b8eedadfedcd7a54cebe90091a17
pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF9 5032 bytes
font_02_sfnt_off00008e31.bin
f669acbba3902f22323da03d41b4fd51c321bbe7ea8593c9c6e5b186770f56ab
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E31 9984 bytes