Malicious PDF — malware analysis report

Static analysis result for SHA-256 2598203082476553…

MALICIOUS

PDF

50.3 KB Created: 2020-08-31 04:10:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ff85f4840de841f8a7d8ba5185b510f SHA-1: f35fd4dfedf897d71b344da856cc2f5601dd5dac SHA-256: 2598203082476553f4f59bd8822c288fd4428c071b45b481b0c5bd40c06ac067
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 'https://ttraff.cc/wix?keyword=the+geography+of+bliss'. Additionally, it exhibits a PDF link farm heuristic, embedding numerous links, many of which point to Shopify domains hosting PDF files. The document body itself contains obfuscated text and the malicious URL, suggesting an attempt to disguise the malicious intent. The primary goal appears to be redirecting the user to a malicious site.

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.cc/wix?keyword=the+geography+of+bliss
    • https://cdn.shopify.com/s/files/1/0435/6905/3854/files/55259426446.pdf
    • https://cdn.shopify.com/s/files/1/0437/1513/3605/files/7450699229.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/10869437376.pdf
    • https://cdn.shopify.com/s/files/1/0439/1724/6632/files/egoista_en_ingles.pdf
    • https://cdn.shopify.com/s/files/1/0430/7081/6407/files/77730047537.pdf
    • https://cdn.shopify.com/s/files/1/0431/3251/8555/files/migufatagewenitekanizuwi.pdf
    • https://cdn.shopify.com/s/files/1/0431/7547/7407/files/kl_chung_a_course_in_probability_theory.pdf
    • https://cdn.shopify.com/s/files/1/0431/9150/0961/files/laporan_kasus_pneumonia_pada_anak.pdf
    • https://static.usrfiles.com/ugd/6da380_d785aae22935404698689b10763e5073.pdf
    • https://static.usrfiles.com/ugd/4dd980_1ca8614de27f45608590d0ffea4db369.pdf
    • https://static.usrfiles.com/ugd/e3ff21_4058c7ecbfe44e71a56fa09caa78c9e5.pdf
    • https://cdn.shopify.com/s/files/1/0430/3529/5905/files/2nd_law_of_thermodynamics_notes.pdf
    • https://cdn.shopify.com/s/files/1/0428/2987/3318/files/dunkin_donuts_receipt_template.pdf
    • https://cdn.shopify.com/s/files/1/0431/1724/8672/files/gubazosipatumedewaga.pdf
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/el_sur_ficciones_borges.pdf
    • https://cdn.shopify.com/s/files/1/0439/6023/8238/files/civil_engineering_quantity_calculation_formulas.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_off00007889.bin
57d5719809ddfea181c68aaf6c39807306ad88b2db05489769366b2299436c0e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7889 4956 bytes
font_01_sfnt_off0000897e.bin
371f0ecb8257398b880b3a96805f2f64a068a83edcc414a0ddc0f54ac0c5fff1
pdf-font-stream PDF embedded font (sfnt) at offset 0x897E 10764 bytes
font_02_sfnt_off0000ae17.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0xAE17 4324 bytes