Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2b57c449edf26c1…

MALICIOUS

PDF

39.8 KB Created: 2020-08-26 10:40:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: abd903a585edece0caece4f7d906c086 SHA-1: 9ac1a589415f9363edc1874aaf040d74d2c8e77a SHA-256: a2b57c449edf26c1b322c8dcd1cd0ba5d908ecb24264c96a120d138afabe6476
150 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with at least one pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body contains garbled text and a URL that appears to be the primary lure, suggesting a phishing or redirection attempt.

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.ru/pify?keyword=skyrim+dodge+roll
    • http://kativeval.bodyvolvefitness.com/uploads/1/3/2/6/132695465/254406.pdf
    • http://bexude.warlarp.com/uploads/1/3/1/6/131606490/fubisedaxi.pdf
    • http://files.michisboutique.com/uploads/1/3/1/4/131483002/6587822.pdf
    • http://files.corydixon.com/uploads/1/3/2/7/132740665/nazupebipawava-dabusomewus-senokuferujo-poliwuz.pdf
    • https://cdn.shopify.com/s/files/1/0434/6321/3209/files/cinema_4d_free_windows_10.pdf
    • https://cdn.shopify.com/s/files/1/0431/5650/4744/files/90292645332.pdf
    • https://cdn.shopify.com/s/files/1/0433/8581/5205/files/87596353772.pdf
    • https://cdn.shopify.com/s/files/1/0431/7233/1675/files/acls_book_free.pdf
    • https://cdn.shopify.com/s/files/1/0447/9824/7069/files/what_is_insurable_risk.pdf
    • https://cdn.shopify.com/s/files/1/0427/7790/3263/files/wuvamipurow.pdf
    • https://cdn.shopify.com/s/files/1/0437/0300/9434/files/buvijanomawo.pdf
    • https://cdn.shopify.com/s/files/1/0433/5340/7646/files/vokobapomumubasewonudok.pdf
    • https://cdn.shopify.com/s/files/1/0431/9608/8481/files/air_on_a_g_string_piano_sheet_music.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_off00005703.bin
d2548094efb27f2cba754a23179f8961506d3f0d06f57cf7ead3d9e69c1c3b62		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5703 5024 bytes
font_01_sfnt_off0000680f.bin
f377fff9670c5a9922d46d7d3989eb3491143fbaa405005589c7b17c29cdd94a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x680F 13916 bytes

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