Malicious PDF — malware analysis report

Static analysis result for SHA-256 4247680a34da27a4…

MALICIOUS

PDF

39.5 KB Created: 2020-08-22 02:10:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 99165e94654a3535a31df1d8444109e6 SHA-1: 8f377a2e7997af8aa0298d4d0c76deffca7f9800 SHA-256: 4247680a34da27a4846a4c94e858b2aec996373df4fbe62ae786513444260aca
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=buyer%2527+s+order+form+for+car'. This URL is presented within the document body, disguised as a buyer's order form, indicating a phishing or social engineering attempt. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious content.

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=buyer%2527+s+order+form+for+car
    • http://files.fyldecoastplayers.com/uploads/1/3/1/4/131437775/xezepiwaposigamon.pdf
    • http://repofage.thecarmaven.net/uploads/1/3/0/7/130776031/8610871.pdf
    • https://cdn.shopify.com/s/files/1/0435/9458/0136/files/monoprice_maker_select_plus_3d_printer.pdf
    • https://cdn.shopify.com/s/files/1/0433/4790/2622/files/bagarufoluzimitomiwevo.pdf
    • https://cdn.shopify.com/s/files/1/0431/8763/4338/files/8261966224.pdf
    • https://cdn.shopify.com/s/files/1/0432/3550/8381/files/71764548873.pdf
    • https://cdn.shopify.com/s/files/1/0429/0763/1783/files/56783360778.pdf
    • https://cdn.shopify.com/s/files/1/0435/7311/7096/files/cardiopatia_diabetica.pdf
    • https://cdn.shopify.com/s/files/1/0434/1045/6726/files/53405951795.pdf
    • https://cdn.shopify.com/s/files/1/0430/9961/9492/files/cognitive_approach_to_language_learning.pdf
    • https://cdn.shopify.com/s/files/1/0429/0733/6867/files/sugugemexujasid.pdf
    • https://cdn.shopify.com/s/files/1/0429/2745/6419/files/chordal_action_in_chain_drive.pdf
    • https://cdn.shopify.com/s/files/1/0436/7237/1350/files/39421884519.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_off00005d72.bin
fed35af70b22804c5aea1d7574400fb69b6f126c1534d569ce6c763097adc807		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D72 5320 bytes
font_01_sfnt_off00006f81.bin
2e33d03d73513ccf639acd822c56520b28ea96773178daf2718dcc036fd09690		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F81 9964 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.