Malicious PDF — malware analysis report

Static analysis result for SHA-256 24884fe3ae7cdabb…

MALICIOUS

PDF

54.9 KB Created: 2020-08-08 05:03:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 16d04a186505eaf4c5e4d2c8ef9088b2 SHA-1: b07e545f4a24e9d336643e56d45f558fadfaf66f SHA-256: 24884fe3ae7cdabb00eed2fe041d386dda383db88cf55c86b6cb8c59ac031fc2
168 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a malicious redirector and part of a link farm, specifically designed as a payment redirection lure. The document body, though heavily obfuscated, contains text related to 'Magento invoice pdf template edit' and includes the malicious URL https://ttraff.com/pify?keyword=magento+invoice+pdf+template+edit, which is a primary indicator of the attack. The presence of numerous Shopify-hosted PDF links suggests an attempt to obscure the true malicious destination.

Heuristics 5

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=magento+invoice+pdf+template+edit
    • http://wugixezad.thatartgal.com/uploads/1/3/0/8/130873995/bidevebokolewa-vuxofe-voradepolafar.pdf
    • http://wipivipeb.youarentaloneproject.com/uploads/1/3/2/6/132682883/kameb.pdf
    • http://files.sterlingequipment.us/uploads/1/3/0/7/130776887/b8276.pdf
    • http://files.africangoodwillnetwork.com/uploads/1/3/0/8/130874543/8430650.pdf
    • http://files.africangoodwillnetwork.com/uploads/1/3/0/8/130874543/84
    • https://cdn.shopify.com/s/files/1/0431/2429/3794/files/rewilopumofelokeludu.pdf
    • https://cdn.shopify.com/s/files/1/0434/9739/0244/files/jimisagapinafozatizoji.pdf
    • https://cdn.shopify.com/s/files/1/0437/9423/5553/files/zesezu.pdf
    • https://cdn.shopify.com/s/files/1/0429/1257/9747/files/tumofu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5797/9304/files/81253430178.pdf
    • https://cdn.shopify.com/s/files/1/0435/2219/5608/files/90019851385.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15074065918.pdf
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/go_kart_designs.pdf
    • https://cdn.shopify.com/s/files/1/0444/1505/8086/files/beef_recipe.pdf
    • https://cdn.shopify.com/s/files/1/0446/6756/8291/files/java_projects_with_source_code_in_netbeans.pdf
    • https://cdn.shopify.com/s/files/1/0437/3279/5541/files/aarhus_city_map.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_off00007e40.bin
04ae66be203ef431b122b99b16608acbc6ecd8316f296484da52deaf35ba868d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E40 5052 bytes
font_01_sfnt_off00008f6c.bin
eec64c6b99b82869d9499564895cd44d5b2318452856d8119aff4532c87556bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F6C 15820 bytes
font_02_sfnt_off0000c01c.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC01C 4324 bytes

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