Malicious PDF — malware analysis report

Static analysis result for SHA-256 acfb1168014387ad…

MALICIOUS

PDF

47.3 KB Created: 2020-09-08 19:09:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 41922cc8967e786983b39bd8263038e6 SHA-1: eb5be656496de4f9f8f5a4e8c27b326f1bdeff52 SHA-256: acfb1168014387add1aecae45469768db786c49626effcfb719968de882f87ea
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link leads to a link farm of other PDFs hosted on Shopify. The primary attack pattern involves tricking users into clicking a malicious link under the guise of a business report, likely leading to further malicious content or exploits.

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=d%2526+b+annual+report+2017
    • https://cdn.shopify.com/s/files/1/0446/7677/6089/files/wabifininirojudesuw.pdf
    • https://cdn.shopify.com/s/files/1/0431/2858/6402/files/area_of_composite_figures_7th_grade.pdf
    • https://cdn.shopify.com/s/files/1/0429/5619/3955/files/pigenoxuzer.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99324429390.pdf
    • https://cdn.shopify.com/s/files/1/0466/2489/9237/files/39859167008.pdf
    • https://cdn.shopify.com/s/files/1/0434/6078/8390/files/atomic_habits_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0432/1627/3563/files/zovapaxetevorunanun.pdf
    • https://cdn.shopify.com/s/files/1/0435/5633/9871/files/27820878132.pdf
    • https://cdn.shopify.com/s/files/1/0430/8008/9760/files/92776317023.pdf
    • https://cdn.shopify.com/s/files/1/0433/7179/0494/files/energia_da_biomassa.pdf
    • https://cdn.shopify.com/s/files/1/0432/8852/7006/files/gusano_barrenador_del_ruezno.pdf
    • https://cdn.shopify.com/s/files/1/0429/0537/0787/files/gosuf.pdf
    • https://cdn.shopify.com/s/files/1/0448/1007/6322/files/lavanuxe.pdf
    • https://cdn.shopify.com/s/files/1/0434/3113/3340/files/excel_set_footer_for_all_sheets.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_off000066ba.bin
bae8c65fbb2985f8f9e3f3f2bcf16a0f9e8e1e4a7d5ebf1135d71e3fbc9ddb2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66BA 4156 bytes
font_01_sfnt_off000074e8.bin
faafcaeaf8ac0691acc25a839ab843b944ce2bc900c90b3af74019d9e694924b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74E8 11728 bytes
font_02_sfnt_off00009bc8.bin
dabba0551971f47ac5c2c5a19d9b5fb69fe9e84707188681933fde6a4855b53a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BC8 16096 bytes

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