Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bb202370abed9b8…

MALICIOUS

PDF

47.2 KB Created: 2020-09-03 01:56:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b7e1b0159d92972e32defd6287552cd6 SHA-1: bdeef80435984d7d410f41d98624e9b699ca1441 SHA-256: 6bb202370abed9b8bf78ef3a3e7997612ae15fe340fa01af1d0cb954f3660348
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded links, many of which point to a redirector infrastructure known to host malicious content. The primary malicious link identified is 'https://ttraff.ru/wix?keyword=best+material+for+tent+groundsheet', which is likely used to direct users to a malicious site. The document body itself is heavily obfuscated and contains garbled text, but the presence of numerous links and the critical heuristic firings strongly suggest a phishing or redirection attempt.

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.ru/wix?keyword=best+material+for+tent+groundsheet
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0431/0158/5562/files/bluetooth_app_for_windows_7.pdf
    • https://cdn.shopify.com/s/files/1/0462/1765/8521/files/soviw.pdf
    • https://cdn.shopify.com/s/files/1/0431/0971/2021/files/74053163673.pdf
    • https://cdn.shopify.com/s/files/1/0429/5216/3481/files/xufipekawapelojebatul.pdf
    • https://cdn.shopify.com/s/files/1/0433/4429/8133/files/copper_coated_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0435/4929/4756/files/34830187602.pdf
    • https://cdn.shopify.com/s/files/1/0435/4483/8303/files/temudosusoxe.pdf
    • https://cdn.shopify.com/s/files/1/0445/7755/4591/files/letter_of_interest_template_teacher.pdf
    • https://cdn.shopify.com/s/files/1/0447/0823/3369/files/rapidgator_premium_account.pdf
    • https://static.usrfiles.com/ugd/b8c837_033de887905148569c3e85de2ab17e19.pdf
    • https://static.usrfiles.com/ugd/d2751c_180711ea619444698a522c5c3512fe20.pdf
    • https://static.usrfiles.com/ugd/2ca22b_3cbf1ef06c1c457f8c44fecd03ed73e3.pdf
    • https://static.usrfiles.com/ugd/e6092c_c036a65fe64342c0adca64d7db6c6fa1.pdf
    • https://static.usrfiles.com/ugd/b6edda_14f0a13312a04f069bdb95c2cc5e5167.pdf
    • https://static.usrfiles.com/ugd/7d21c0_99593bbbc6ac448099fab678f5586c70.pdf
    • https://static.usrfiles.com/ugd/b8c837_1047222140094212abc2e0fb59586faf.pdf
    • https://static.usrfiles.com/ugd/756799_7ffe01aede0b449d979941dc8aaa1e6f.pdf
    • https://static.usrfiles.com/ugd/b8c837_01436e5cf17443a6b313bf18edc2cb05.pdf
    • https://static.usrfiles.com/ugd/fbccce_22f2ee8e6cf0437fb48150194813b0c1.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c6c.bin
80b50e4d19e07869cb955e8cb030ea45d4dca1b6f60265913263b471890282ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C6C 5252 bytes
font_01_sfnt_off00007e0d.bin
f9772309b6c892cbce948ab3d0a0d7d7f9509e8198c7441f3b78ac9f19662a08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E0D 10472 bytes
font_02_sfnt_off0000a197.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA197 4324 bytes

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