Malicious PDF — malware analysis report

Static analysis result for SHA-256 7eebeaee8de6d0c9…

MALICIOUS

PDF

41.2 KB Created: 2020-08-06 13:03:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 98429af83d57a7345e35b349fd34a2af SHA-1: ff9ef4a361fb3dc91d29bf459f81c9f7cd9daffd SHA-256: 7eebeaee8de6d0c9c04bae725993e70dc873578b11fbda2c1603f8688ed3a40c
150 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with the primary malicious redirector identified as https://ttraff.ru/pify?keyword=mysql+workbench+pdf. This indicates a likely phishing or scam attempt, leveraging a link farm to obscure the final destination. The ML classifier strongly supports the malicious nature of this document.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.ru/pify?keyword=mysql+workbench+pdf
    • http://files.colesfoodsafetytraining.com/uploads/1/3/0/8/130814283/2200473.pdf
    • http://files.slpechowan.com/uploads/1/3/2/6/132696030/2f182a0fb2069b.pdf
    • http://files.presbyteryoflothian.org.uk/uploads/1/3/1/3/131382808/posimozumekawu_virasevogisofo_gabegilonaj.pdf
    • http://tojuwo.americanlegiongh.org/uploads/1/3/1/6/131636664/9084718.pdf
    • https://cdn.shopify.com/s/files/1/0440/8236/4566/files/kitipijatosofadafed.pdf
    • https://cdn.shopify.com/s/files/1/0431/7652/5984/files/90260299358.pdf
    • https://cdn.shopify.com/s/files/1/0437/1123/4197/files/92167337609.pdf
    • https://cdn.shopify.com/s/files/1/0431/0866/3457/files/wonigafawibilulazarodepu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1920/5789/files/hp_laserjet_p1005_driver.pdf
    • https://cdn.shopify.com/s/files/1/0427/3173/3159/files/zokafezijawijozup.pdf
    • https://cdn.shopify.com/s/files/1/0436/6604/7129/files/13824210852.pdf
    • https://cdn.shopify.com/s/files/1/0430/1085/0979/files/97580030984.pdf
    • https://cdn.shopify.com/s/files/1/0428/7699/3695/files/bunefewafuluxalibiradas.pdf
    • https://cdn.shopify.com/s/files/1/0430/6996/4439/files/armas_nucleares_en_el_mundo.pdf
    • https://cdn.shopify.com/s/files/1/0431/7793/5004/files/markus_persson_net_worth.pdf
    • https://cdn.shopify.com/s/files/1/0434/0908/0477/files/67434059143.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_off00006266.bin
e3a404393d82906cc2184af645b0e8b09f91603e325a16c1e5276dfdffdfc435		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6266 5560 bytes
font_01_sfnt_off00007569.bin
a5ee6f74c9c221008882cd27ac5407314276c9df1848ad279fac27db9adc4260		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7569 10256 bytes

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