Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbafc56df794cf76…

MALICIOUS

PDF

47.8 KB Created: 2020-09-05 07:06:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d22b8533845930f2d18d94272664a13 SHA-1: fc2e2424666e4c1fff79530451785273dba46bf9 SHA-256: cbafc56df794cf7694449f7dfe94c9f5f29df97af181ffa2eb9e01b866aa4a1c
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.link/wix?keyword=archipelago+lightroom+presets+free', is designed to lead users to malicious infrastructure. The document also contains a large number of embedded links, many pointing to Shopify, which is flagged as a PDF link farm. The primary intent appears to be social engineering users into clicking the malicious link under the guise of downloading free presets.

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.link/wix?keyword=archipelago+lightroom+presets+free
    • https://cdn.shopify.com/s/files/1/0431/2920/8992/files/mathematical_induction_problems_and_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0439/1400/2587/files/astrologa_maya.pdf
    • https://cdn.shopify.com/s/files/1/0433/9430/2115/files/nizuzoretozejumetemifoli.pdf
    • https://cdn.shopify.com/s/files/1/0433/0677/8784/files/tufexaguroluzerotojof.pdf
    • https://cdn.shopify.com/s/files/1/0431/0522/2818/files/pivinopazolamut.pdf
    • https://cdn.shopify.com/s/files/1/0429/6150/2362/files/biomass_gasifier.pdf
    • https://cdn.shopify.com/s/files/1/0431/8425/9231/files/best_anti_aging_sheet_mask_uk.pdf
    • https://cdn.shopify.com/s/files/1/0437/6304/0408/files/manobevubekixuf.pdf
    • https://cdn.shopify.com/s/files/1/0439/2737/1931/files/9581478005.pdf
    • https://cdn.shopify.com/s/files/1/0431/4952/5156/files/1402853651.pdf
    • https://cdn.shopify.com/s/files/1/0434/3857/1670/files/love_calculator_real.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/67279733654.pdf
    • https://cdn.shopify.com/s/files/1/0437/2440/6933/files/battlestar_galactica_season_1_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/0776/9750/files/julakazatokisexuxu.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_off000063d3.bin
aaa4be31ae57a7edaa32f38f8af25529f57941d74e0efc99c33d06f937f94b9c
pdf-font-stream PDF embedded font (sfnt) at offset 0x63D3 5100 bytes
font_01_sfnt_off0000751d.bin
0aa83e099ba7b6abfc433245d32bcfd4b4c3f928dcf6c287bdfbb1e92b756da5
pdf-font-stream PDF embedded font (sfnt) at offset 0x751D 2944 bytes
font_02_sfnt_off00007f24.bin
a6bb04dfde61c17b62f50ee69ce2ce83f1b394a56abcca9c7b0514a18e76cb9c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F24 10732 bytes
font_03_sfnt_off0000a3b8.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0xA3B8 4324 bytes