Malicious PDF — malware analysis report

Static analysis result for SHA-256 dab0cf791c7fc1a2…

MALICIOUS

PDF

40.9 KB Created: 2020-08-19 08:50:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7265385b053fac730ccd58a3e055c3cc SHA-1: a45f969cd4c483509ac8b9c6f2a6f0bdd5fdf6a4 SHA-256: dab0cf791c7fc1a29abbe8e0d5ecf95c4a252f11c526baaf02d378d52b36efc3
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic firing indicates a link to a known malicious redirector infrastructure at https://ttraff.com/pify?keyword=morfologi+rhizopus+oryzae+pdf. This suggests the document is designed to redirect users to malicious content. No scripts were extracted from this sample.

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=morfologi+rhizopus+oryzae+pdf
    • http://files.kansascityrosesociety.org/uploads/1/3/1/3/131379680/xafojox_fanenovuwuj.pdf
    • http://zudusojo.epworthumclouisville.com/uploads/1/3/0/8/130874246/2842825.pdf
    • http://files.mojamaican.us/uploads/1/3/0/7/130739284/vopinanimuvakozivoxo.pdf
    • http://files.provideacare.net/uploads/1/3/1/4/131455337/191799.pdf
    • https://cdn.shopify.com/s/files/1/0431/6895/6573/files/48740048255.pdf
    • https://cdn.shopify.com/s/files/1/0428/4992/7327/files/componentes_organicos_e_inorganicos_de_la_saliva.pdf
    • https://cdn.shopify.com/s/files/1/0433/3820/3290/files/libro_cfdi_3._3.pdf
    • https://cdn.shopify.com/s/files/1/0431/1590/5185/files/jevixopavimevugemo.pdf
    • https://cdn.shopify.com/s/files/1/0434/3490/1671/files/51613140291.pdf
    • https://cdn.shopify.com/s/files/1/0428/7276/6630/files/89914565393.pdf
    • https://cdn.shopify.com/s/files/1/0429/7264/3491/files/alex_clare_too_close_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0440/5451/1766/files/the_cancer_journals_audre_lorde_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/4088/9240/files/54262661.pdf
    • https://cdn.shopify.com/s/files/1/0433/4567/4389/files/10780317700.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/84452403527.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_off00006081.bin
885a85e6eff7eab0dfc567f3d304c94cbdc0fe9b10bbf00580c8b7eb9eafa95a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6081 5460 bytes
font_01_sfnt_off0000732a.bin
e68f7bfd91a0738c58f33a72a86ba04414d973c27243f3d8233ea7e2db38f194		 pdf-font-stream PDF embedded font (sfnt) at offset 0x732A 9976 bytes

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