Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee38b38ee0c498d6…

MALICIOUS

PDF

62.1 KB Created: 2020-08-23 02:26:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d354d9e33db5e1c8a3ab22c10e381201 SHA-1: 1c654bbae40a9a52ca906bbc76deac63a4b41586 SHA-256: ee38b38ee0c498d68924a2273f661e28e76773d2554936eccd733bf0a96ba765
152 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=cessna+182+manual', which is also listed as a malicious redirector. The file also contains a large number of embedded links, many pointing to shopify.com, suggesting a link farm or distribution mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=cessna+182+manual
    • http://files.rachelsilvert.com/uploads/1/3/1/4/131454560/054425c1be96c9.pdf
    • http://files.mgtowtv.com/uploads/1/3/2/7/132740275/rasemijinutag.pdf
    • https://cdn.shopify.com/s/files/1/0428/4828/8934/files/16516825279.pdf
    • https://cdn.shopify.com/s/files/1/0431/2884/8538/files/beat_saber_ps4_size.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87745409623.pdf
    • https://cdn.shopify.com/s/files/1/0433/0323/9835/files/zewojanogowir.pdf
    • https://cdn.shopify.com/s/files/1/0429/9299/2410/files/diagnosis_of_hemolytic_anemia.pdf
    • https://cdn.shopify.com/s/files/1/0431/9982/4032/files/xemenafa.pdf
    • https://cdn.shopify.com/s/files/1/0440/0958/6846/files/34874518228.pdf
    • https://cdn.shopify.com/s/files/1/0433/7106/9594/files/fundamentals_of_anesthesia_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/2435/0375/files/mixagu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7990/1096/files/7564297265.pdf
    • https://cdn.shopify.com/s/files/1/0428/6775/3116/files/fenenu.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000747e.bin
ff5fbd65275e9588921cf9e41e8ac2ac729bd4589ab9dcf0d2cce9de68a4c4b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x747E 5020 bytes
font_01_sfnt_off00008579.bin
a40b78eac0f242c38dac24e8f0ed9ee7135fdf19ca4ed8b1fbc7bef5b49e2e7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8579 23028 bytes
font_02_sfnt_off0000aaf7.bin
67b590d5c050bc1edc35cad0688399707985a750721c625122a6ce823cb04cf3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAAF7 11360 bytes
font_03_sfnt_off0000d217.bin
2c08f31c5b0b62c12ee8803a59d599e3610db6eef6bd8ba9ebb7d6d0dc860da6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD217 7396 bytes

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