Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8d8dd0a1cca33ee…

MALICIOUS

PDF

43.1 KB Created: 2020-08-02 18:02:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59f9b85cda4c8b6a655734b33cf014bd SHA-1: b25d14456a369742c4ca160678fc19cc044c73ca SHA-256: d8d8dd0a1cca33ee253c45fc430c0199bda816829013d2a69eb4d4f990dabbd2
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, which is disguised as a Japanese slot machine manual. This redirector likely leads to further malicious content or exploits. The PDF also contains a large number of links to external PDFs hosted on Shopify, suggesting a link farm or SEO manipulation tactic to obscure the malicious intent. No scripts were extracted, but the primary malicious activity is the redirection to the ttraff.com URL.

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.com/pify?keyword=japanese+slot+machine+manual
    • http://files.orielesteiner.com/uploads/1/3/2/6/132683181/e12cb87b930.pdf
    • http://files.thezoneevents.com/uploads/1/3/0/7/130776673/gerixokexopeg.pdf
    • http://files.recordhorn.com/uploads/1/3/0/8/130813988/mivodebomatega_tovewamiligib_gotebalis_berenefivan.pdf
    • https://cdn.shopify.com/s/files/1/0431/9766/1348/files/82305116486.pdf
    • https://cdn.shopify.com/s/files/1/0435/4896/7061/files/vuravuxom.pdf
    • https://cdn.shopify.com/s/files/1/0433/7824/5781/files/cengel_thermodynamics_7th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0430/7491/2410/files/asa_sample_paper.pdf
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/38642930490.pdf
    • https://cdn.shopify.com/s/files/1/0431/6309/1110/files/32077676050.pdf
    • https://cdn.shopify.com/s/files/1/0435/4431/4011/files/99486869661.pdf
    • https://cdn.shopify.com/s/files/1/0433/7877/0076/files/44942793536.pdf
    • https://cdn.shopify.com/s/files/1/0440/6811/0488/files/67705512563.pdf
    • https://cdn.shopify.com/s/files/1/0431/4690/3701/files/13869399009.pdf
    • https://cdn.shopify.com/s/files/1/0428/5943/0047/files/gifuv.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_off000062c4.bin
2375f9a190669edddeb6edd07f3637df3e766094e42c614d77dca3a5ff09250e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62C4 5064 bytes
font_01_sfnt_off000073d8.bin
2d12c42120408d8986284ecd5e66e306f228765256f4fdb66b235894f6f03cf8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73D8 14056 bytes

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