Malicious PDF — malware analysis report

Static analysis result for SHA-256 320c47b057487a93…

MALICIOUS

PDF

51.4 KB Created: 2020-08-29 06:26:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f92e3d3add17ac57ba11485772acab17 SHA-1: 0c5962ae8f1a5920cb052af387816f7ff70eb968 SHA-256: 320c47b057487a93ef48a6c253eb2cf68d81dd0f8199f32ca665ffc63eb9bdb8
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous embedded links, including a critical redirector link to 'ttraff.cc', which is flagged as malicious. The document body, though heavily obfuscated, contains text related to a 'Halo 5 strategy guide pdf', suggesting a lure to entice users to click the malicious link. The ML classifier also strongly indicated maliciousness.

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.cc/wix?keyword=halo+5+strategy+guide+pdf
    • https://cdn.shopify.com/s/files/1/0428/5821/7631/files/3049667620.pdf
    • https://cdn.shopify.com/s/files/1/0431/6925/1492/files/65625858683.pdf
    • https://cdn.shopify.com/s/files/1/0435/5352/1823/files/fofatusimovituj.pdf
    • https://cdn.shopify.com/s/files/1/0439/2756/8552/files/adjectives_worksheets_grade_5.pdf
    • https://cdn.shopify.com/s/files/1/0428/2823/4908/files/zikovobu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3507/4465/files/worship_house_project_14_songs.pdf
    • https://cdn.shopify.com/s/files/1/0428/4986/1791/files/goxogugeruzinaweko.pdf
    • https://cdn.shopify.com/s/files/1/0435/2222/8376/files/91322626570.pdf
    • https://cdn.shopify.com/s/files/1/0429/4311/9516/files/duwagelifoxiguzig.pdf
    • https://static.usrfiles.com/ugd/b8c837_cad9da7fa409402b9399a38ecaa6359b.pdf
    • https://static.usrfiles.com/ugd/b8c837_3849cf880a9d411e869eb4303ccdca74.pdf
    • https://cdn.shopify.com/s/files/1/0434/8903/4402/files/convert_file_into_word_document_online_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/10706061467.pdf
    • https://cdn.shopify.com/s/files/1/0433/8758/4677/files/4604931791.pdf
    • https://cdn.shopify.com/s/files/1/0428/7630/5564/files/pdf_file_download_for_jio_mobile.pdf
    • https://cdn.shopify.com/s/files/1/0431/3002/8194/files/mimivukamil.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_off00007d8a.bin
e555dc07a30f5788fd206577b1577de211caa86933f1514f9ab1837d0c71434f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D8A 5172 bytes
font_01_sfnt_off00008f3f.bin
6ab1c3fcf4a3c49adbf454a134d7d715feaf3e4a3fb0d7b35dfede21e32bcff1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F3F 10280 bytes
font_02_sfnt_off0000b25d.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB25D 4324 bytes

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