Malicious PDF — malware analysis report

Static analysis result for SHA-256 c34a2522b25c79b2…

MALICIOUS

PDF

44.6 KB Created: 2020-08-18 20:37:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a529ccef0353bf6e288bc49185cde843 SHA-1: ad46bab8037dd7c33e35d708f07575f8e14bc60f SHA-256: c34a2522b25c79b2bffd44e73f3310d077773092112e8a6c197bb90a5c706af1
150 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The primary malicious URL is https://ttraff.cc/pify?keyword=performance+parts+2005+honda+civic, which is likely part of a phishing or scam campaign. The document body, though heavily obfuscated, contains references to this URL and other embedded links, reinforcing the 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.cc/pify?keyword=performance+parts+2005+honda+civic
    • http://files.josephmuscatartist.com/uploads/1/3/2/6/132696598/pipanubobukariluto.pdf
    • http://files.newstudiopreschool.net/uploads/1/3/0/7/130774993/c788908fe23db.pdf
    • https://cdn.shopify.com/s/files/1/0435/3818/6394/files/83918660367.pdf
    • https://cdn.shopify.com/s/files/1/0439/7747/4206/files/zazepesuw.pdf
    • https://cdn.shopify.com/s/files/1/0429/4275/9071/files/90533806671.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49816413057.pdf
    • https://cdn.shopify.com/s/files/1/0431/4857/4884/files/69148988719.pdf
    • https://cdn.shopify.com/s/files/1/0433/4944/2713/files/rulafukoxanuxibawobepux.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3496/files/66888582544.pdf
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/abandon_all_hope_rpg.pdf
    • https://cdn.shopify.com/s/files/1/0433/4462/5822/files/secure_vpn_for_pc.pdf
    • https://cdn.shopify.com/s/files/1/0434/3644/1767/files/candide_voltaire_rsum.pdf
    • https://cdn.shopify.com/s/files/1/0438/1055/4016/files/custom_punch_cards.pdf
    • https://cdn.shopify.com/s/files/1/0436/9504/6824/files/patuborunuxuvalewofali.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_off00005f7a.bin
bd6c783d49f7ecbe42da701ad330b163f7c80dfc221e74d2c511dad8dc8bff8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F7A 5820 bytes
font_01_sfnt_off00007314.bin
d2d10b6b0c668cf26faa9347c7054f8580c7eefa5cb7aecda2a4fba74bd025f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7314 6068 bytes
font_02_sfnt_off000082c5.bin
bf2fa0d73a4006460002ec5ca1b2708038902978afdc17143f5cfed39643db16		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82C5 10088 bytes

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