Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac0052ca9cfc36ba…

MALICIOUS

PDF

104.2 KB Created: 2020-09-17 13:11:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: daa69cf9972ef14503a049c2540bc231 SHA-1: 503c8e49334427a880dabc024dfb712774875891 SHA-256: ac0052ca9cfc36bac33d67462be6c704f9c8ab7b57023ad3309c82632a4e1e00
160 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for an advance-fee scam lure, indicating it attempts to trick the user with promises of prizes or funds. It also contains a critical heuristic for a malicious redirector link pointing to 'ttraff.cc', which is designed to lead users to malicious infrastructure. The document body, though heavily obfuscated, contains the same suspicious URL, reinforcing the malicious intent.

Heuristics 4

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=which+founders+of+delta+sigma+theta+were+akas
    • https://cdn.shopify.com/s/files/1/0433/3315/7014/files/vexavegomisonuweb.pdf
    • https://cdn.shopify.com/s/files/1/0434/0183/8744/files/manual_de_wifislax.pdf
    • https://cdn.shopify.com/s/files/1/0440/4002/8325/files/6184338989.pdf
    • https://cdn.shopify.com/s/files/1/0435/4444/5079/files/milesatudiwevuwibeponi.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/nixeduwavij.pdf
    • https://cdn.shopify.com/s/files/1/0432/2548/1379/files/toxicated_vibe_chunda_munki_remix.pdf
    • https://cdn.shopify.com/s/files/1/0439/4188/8155/files/pepuxepatemejof.pdf
    • https://cdn.shopify.com/s/files/1/0435/6263/1326/files/crib_sheet_book_table_of_contents.pdf
    • https://cdn.shopify.com/s/files/1/0431/2770/1655/files/89875943142.pdf
    • https://cdn.shopify.com/s/files/1/0439/8202/8958/files/tumizenazebizesisatinego.pdf
    • https://e0ad53ef-6667-4b0a-8618-f5687f0d7248.filesusr.com/ugd/2994dd_0ab27b732a7141caae7969b0cf48fe77.pdf?index=true
    • https://28c0c36b-2f60-4d6d-bdbe-a821e367c6b2.filesusr.com/ugd/154db6_c43253a95cb442689ef9609a265c5024.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0463/3644/2524/files/mitosis_worksheet_answers_biology.pdf
    • https://cdn.shopify.com/s/files/1/0434/4388/0103/files/osrs_grotesque_guardians_guide.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001545c.bin
22f1d1b335437c20684589135751e962fa2a3cbe3fce495042f6d42a63435515
pdf-font-stream PDF embedded font (sfnt) at offset 0x1545C 5604 bytes
font_01_sfnt_off0001675f.bin
43f97520b24344e37e80ed3955ff2c9af40009913eb1420174ace01623933eb8
pdf-font-stream PDF embedded font (sfnt) at offset 0x1675F 13560 bytes