Malicious PDF — malware analysis report

Static analysis result for SHA-256 48346943a388b86c…

MALICIOUS

PDF

54.3 KB Created: 2020-08-19 08:25:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 288efa4fd0dac31db8898b5dac02e9b8 SHA-1: b4cbe36aed8c19ecd33e5297880cc93866c7d7ca SHA-256: 48346943a388b86c7cf669cc868f8aee3d28b4103d8f913b42fc5854d84d95cf
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains a lure related to jokes and riddles, which is a common tactic for advance-fee scams. It embeds a link to a known malicious redirector at `https://ttraff.com/pify?keyword=confusing+jokes+and+riddles+with+answers`. The file also exhibits characteristics of a PDF link farm, with numerous links pointing to external resources, including a prominent link to `https://cdn.shopify.com/s/files/1/0428/6296/8991/files/92925201207.pdf`.

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.com/pify?keyword=confusing+jokes+and+riddles+with+answers
    • http://files.ziqixie.com/uploads/1/3/1/4/131437657/890e223757a3f.pdf
    • http://dedif.mollymaka.com/uploads/1/3/0/8/130813528/8805894.pdf
    • https://cdn.shopify.com/s/files/1/0428/6296/8991/files/92925201207.pdf
    • https://cdn.shopify.com/s/files/1/0430/7353/6161/files/28351680818.pdf
    • https://cdn.shopify.com/s/files/1/0428/5353/1807/files/dasevitipazefe.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xifadek.pdf
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/alimentacion_saludable_nios.pdf
    • https://cdn.shopify.com/s/files/1/0430/8077/7882/files/54888361189.pdf
    • https://cdn.shopify.com/s/files/1/0431/5480/0802/files/deezloader_remix_apk.pdf
    • https://cdn.shopify.com/s/files/1/0428/6775/3116/files/69200338792.pdf
    • https://cdn.shopify.com/s/files/1/0437/6104/1559/files/27417795359.pdf
    • https://cdn.shopify.com/s/files/1/0428/7397/9043/files/bomotuje.pdf
    • https://cdn.shopify.com/s/files/1/0434/4227/4471/files/cfm56_7b_engine_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/8918/9272/files/pebukoseweriduvisujobenu.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_off0000968c.bin
8d58546be4a40c2c5161b32270849c48ba5fd35a019cd4d3576aacc702cb4942
pdf-font-stream PDF embedded font (sfnt) at offset 0x968C 5308 bytes
font_01_sfnt_off0000a8aa.bin
4296a005c13e48e101665a0420561c36b50b5163967bed3938a76953a6a27d0f
pdf-font-stream PDF embedded font (sfnt) at offset 0xA8AA 10532 bytes