Malicious PDF — malware analysis report

Static analysis result for SHA-256 f326061b45af6491…

MALICIOUS

PDF

38.5 KB Created: 2020-08-07 15:47:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f153e842ded8fe63f59cf399a07ac0c1 SHA-1: d2fd204fc09cd438e2fa1b5b4f0461d98cf3ee78 SHA-256: f326061b45af64912cb99fe12d20fefebe7afece1aeba6020490f6d99f3fce15
152 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector. The ML classifier strongly indicated maliciousness. The document body, though partially corrupted, contains the URL 'https://ttraff.cc/wb?keyword=discovering%20your%20potential%20myles%20munroe%20pdf', which is a clear indicator of a phishing or redirection attempt. The presence of many links to external PDFs suggests a link farm or a method to distribute 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.cc/wb?keyword=discovering%20your%20potential%20myles%20munroe%20pdf
    • http://wabuxos.confidant.be/uploads/1/3/2/6/132681556/sobijejewokafu-zizoso.pdf
    • http://files.fbcapalachicola.com/uploads/1/3/1/3/131384605/sotif-sologe.pdf
    • http://files.michaelcmarshall.com/uploads/1/3/0/7/130776828/16ff3fe8c.pdf
    • http://files.caprinexnz.com/uploads/1/3/0/7/130739344/pipusunileje_zisapagufepi_gufobitemibid_tinumewivef.pdf
    • http://files.mciea.org/uploads/1/3/0/8/130874205/b05df30f92d9.pdf
    • https://cdn.shopify.com/s/files/1/0443/1160/9500/files/albert_speer_biography.pdf
    • https://cdn.shopify.com/s/files/1/0429/3446/8774/files/25247463526.pdf
    • https://cdn.shopify.com/s/files/1/0428/3629/5836/files/vugatufatini.pdf
    • https://cdn.shopify.com/s/files/1/0435/2511/1967/files/96704229851.pdf
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/gagatezapakafatazinofu.pdf
    • https://cdn.shopify.com/s/files/1/0432/1804/3040/files/940341537.pdf
    • https://cdn.shopify.com/s/files/1/0430/4489/6925/files/29613643833.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69892687871.pdf
    • https://cdn.shopify.com/s/files/1/0431/7439/6058/files/biluxeke.pdf
    • https://cdn.shopify.com/s/files/1/0437/8905/8206/files/bupedobesisavowaradim.pdf
    • https://cdn.shopify.com/s/files/1/0448/0489/8978/files/baseball_pitching_grips.pdf
    • https://cdn.shopify.com/s/files/1/0433/4295/4650/files/rezepewidupotelasuxox.pdf
    • https://cdn.shopify.com/s/files/1/0438/7723/6904/files/the_grand_inquisitor_brothers_karamazov.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_off00005667.bin
e6228155993814c1bf518bc16a5ab42f8bcdc12dc89d1851fb35c62709dbc51f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5667 5636 bytes
font_01_sfnt_off00006996.bin
1bd94e58e7f334015253b3ace4aef2fc97cd90b5054a72658ad78e365bbe5bda		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6996 10404 bytes

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