Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff197cbbdaa14e50…

MALICIOUS

PDF

46.2 KB Created: 2020-08-11 01:34:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: be5d80b9ec36e7b4d0827047ed40af4c SHA-1: e485f16e900c46d821b24b523c0c0a3d70ac3bfe SHA-256: ff197cbbdaa14e5064a0f1eb0f9e17025eb66b71a6ac39e9f9f6b12d4887c863
150 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.com. The document body, though partially corrupted, contains text related to 'Share market basics pdf in telugu' and the malicious URL, suggesting a lure to disguise the malicious intent. The ML classifier strongly flagged this PDF as malicious.

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.com/pify?keyword=share+market+basics+pdf+in+telugu
    • http://files.mannadevelopment.com/uploads/1/3/2/6/132681771/wevejiri.pdf
    • http://files.cvillepack77.org/uploads/1/3/1/8/131857213/sifezoponigota_ratobafi_megosiworavugen.pdf
    • http://files.fourpawsdoors.co.uk/uploads/1/3/1/4/131453902/8636219.pdf
    • https://cdn.shopify.com/s/files/1/0448/2433/0402/files/startup_nonprofit_business_plan_template.pdf
    • https://cdn.shopify.com/s/files/1/0427/4018/7303/files/talojola.pdf
    • https://cdn.shopify.com/s/files/1/0428/6670/4550/files/the_lonely_island_songs.pdf
    • https://cdn.shopify.com/s/files/1/0434/9765/2376/files/cm_ruler_measurement_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0432/7404/3552/files/65002736809.pdf
    • https://cdn.shopify.com/s/files/1/0440/3144/3094/files/34531969622.pdf
    • https://cdn.shopify.com/s/files/1/0429/4865/7311/files/el_cerebro_averiado_simon_brailowsky.pdf
    • https://cdn.shopify.com/s/files/1/0433/0723/7531/files/21871034799.pdf
    • https://cdn.shopify.com/s/files/1/0437/8991/0167/files/13216621190.pdf
    • https://cdn.shopify.com/s/files/1/0428/0333/1231/files/taman.pdf
    • https://cdn.shopify.com/s/files/1/0429/0255/2742/files/15435568834.pdf
    • https://cdn.shopify.com/s/files/1/0429/9309/0714/files/tudunuwogijinonoteg.pdf
    • https://cdn.shopify.com/s/files/1/0431/3464/8482/files/bowudokik.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000569b.bin
4da7e26c4b3b0f1c86f73f03efd451d8f55d3c598978283aaeadf488d1630e3b
pdf-font-stream PDF embedded font (sfnt) at offset 0x569B 5876 bytes
font_01_sfnt_off00006a72.bin
906169a09560a6de760d4bd6b6f12fbe4f0e604047d7f4bd4c71324d3f657054
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A72 13956 bytes
font_02_sfnt_off00009693.bin
53215fa94485d380bcfc02fccd1a7a25057d6d657321956405aeddcb36a3b5ce
pdf-font-stream PDF embedded font (sfnt) at offset 0x9693 16224 bytes