Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f584a8a596220a4…

MALICIOUS

PDF

41.1 KB Created: 2020-08-31 06:05:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c9af06c0084d214daf5413061a9174d1 SHA-1: fddf4e6887df8afeb7da48f4da372842c4891600 SHA-256: 2f584a8a596220a44badc7f942a191f1439592ec2826f782bc977f66e02dd33e
152 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many pointing to Shopify. The primary malicious URL, 'https://ttraff.cc/wix?keyword=real+english+eso+2+photocopiable+burlington+books+test', is likely the initial lure, potentially redirecting to a phishing or malware download page. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious redirector is a strong indicator of malicious intent.

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=real+english+eso+2+photocopiable+burlington+books+test
    • https://cdn.shopify.com/s/files/1/0436/4235/5865/files/27764566992.pdf
    • https://cdn.shopify.com/s/files/1/0430/1661/8145/files/compound_interest_and_e_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0435/6633/4111/files/find_cdf_from_matlab.pdf
    • https://cdn.shopify.com/s/files/1/0428/7699/3695/files/gezopixaxofuxaba.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51994241049.pdf
    • https://cdn.shopify.com/s/files/1/0436/3019/8937/files/fazozufukigujowolokegufub.pdf
    • https://cdn.shopify.com/s/files/1/0429/4747/7667/files/34134983674.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tugogesobiwem.pdf
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/66977798221.pdf
    • https://cdn.shopify.com/s/files/1/0431/2711/1841/files/veritas_adirondack_chair_plans.pdf
    • https://cdn.shopify.com/s/files/1/0440/6090/1526/files/cultiver_sheets_sale.pdf
    • https://cdn.shopify.com/s/files/1/0427/5834/0774/files/zipevimurafizadidudab.pdf
    • https://cdn.shopify.com/s/files/1/0431/9707/1524/files/43702157374.pdf
    • https://cdn.shopify.com/s/files/1/0438/9906/0376/files/7865467039.pdf
    • https://cdn.shopify.com/s/files/1/0433/3872/7589/files/3d_billiards_pool_8_ball_pro_apk.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/bahishti_zewar_gujarati.pdf
    • https://cdn.shopify.com/s/files/1/0429/8647/1587/files/map_metro_delhi.pdf
    • https://cdn.shopify.com/s/files/1/0432/4684/6107/files/11431497224.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_off00005fd6.bin
230e8dacf46f69a4777f9d5fb9c123822a758c25c2f5caeb119e574ddd20e980		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD6 5536 bytes
font_01_sfnt_off000072a5.bin
750eadf052ba38c63184092592e00b8293f2ca215539857bbf0617ca5ae8c073		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72A5 10708 bytes

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