Malicious PDF — malware analysis report

Static analysis result for SHA-256 deb6fe4ce2a6f065…

MALICIOUS

PDF

51.7 KB Created: 2020-08-17 17:26:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 304234862ae3002c274e49e81cb68ce6 SHA-1: 1ba0d95902be24309946920689f7e253eb72ab94 SHA-256: deb6fe4ce2a6f0657da8c79c445f58bb11245e55ad6153cefd560ea14c872fbb
152 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and a reference to a 'Honeywell alarm panel manual', suggesting a lure. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to improve search engine ranking for malicious content. The primary malicious URL is 'https://ttraff.com/pify?keyword=honeywell+alarm+panel+manual+6160', which likely serves as a gateway to further malicious content.

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=honeywell+alarm+panel+manual+6160
    • http://files.revesalpins.com/uploads/1/3/1/6/131607093/wadugasanu_voreka_bazinovu.pdf
    • http://files.fdnholisticwellness.com/uploads/1/3/1/4/131412181/81f35aca4d0d9.pdf
    • http://kokida.vinemonthigh.com/uploads/1/3/0/7/130776046/2346411.pdf
    • https://cdn.shopify.com/s/files/1/0431/5440/7578/files/39253949672.pdf
    • https://cdn.shopify.com/s/files/1/0438/1055/4016/files/logs_fml_client_latest_log.pdf
    • https://cdn.shopify.com/s/files/1/0439/4424/7451/files/millennium_development_goals_pakistan_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/6750/6845/files/bisection_method_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0427/9166/5830/files/fivoj.pdf
    • https://cdn.shopify.com/s/files/1/0432/4638/7362/files/14181248258.pdf
    • https://cdn.shopify.com/s/files/1/0429/9672/7961/files/nec_article_250.pdf
    • https://cdn.shopify.com/s/files/1/0433/3171/5225/files/dugatirax.pdf
    • https://cdn.shopify.com/s/files/1/0433/0582/8520/files/sql_joins_interview_questions_and_answers_for_experienced.pdf
    • https://cdn.shopify.com/s/files/1/0435/2717/6344/files/books_of_the_bible_chart.pdf
    • https://cdn.shopify.com/s/files/1/0429/8381/7375/files/ghatna_chakra_vdo_book.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_off0000759f.bin
4f274d0f43e7ac901a3dcb19106cbec25b9c8dfa7dd4ed09688e28e4b736b22d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x759F 5292 bytes
font_01_sfnt_off000087a1.bin
0fe3f261d5e9bb9053d910074207687ebdc5f4ff629a65aa188350d34e7044f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87A1 10480 bytes
font_02_sfnt_off0000ab7d.bin
060a7d97e72893e0ea86a8f4d57c813c93f89f7f5f965b91fc9f2dfacac99ac6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB7D 16484 bytes

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