Malicious PDF — malware analysis report

Static analysis result for SHA-256 aca6c8a13dcd1464…

MALICIOUS

PDF

63.2 KB Created: 2020-08-30 04:17:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1f778a998221fb4f4d546b078a1c194d SHA-1: 2b62c0dceee140aa56d8a1ac8bdadad914534089 SHA-256: aca6c8a13dcd146492f9c2974610446fbe3f1c9e095553f1efe384a2f5231212
176 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious intent, including a critical finding of a malicious redirector link and a PDF link farm. The document body and heuristics suggest a lure related to 'Pan card nsdl form pdf', likely a phishing attempt. The presence of a malicious redirector URL and a link farm points towards an attempt to drive traffic to malicious infrastructure, potentially for credential harvesting or malware distribution.

Heuristics 6

  • 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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=pan+card+nsdl+form+pdf
    • https://cdn.shopify.com/s/files/1/0432/5625/0525/files/60748785284.pdf
    • https://cdn.shopify.com/s/files/1/0432/1440/5793/files/pukometufulaliwos.pdf
    • https://cdn.shopify.com/s/files/1/0436/7400/9753/files/plant_systematics_judd_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/5181/0969/files/91965358773.pdf
    • https://cdn.shopify.com/s/files/1/0429/2296/7207/files/modern_control_engineering_4th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0429/5714/4230/files/kolaroji.pdf
    • https://cdn.shopify.com/s/files/1/0434/8693/7253/files/mewitene.pdf
    • https://cdn.shopify.com/s/files/1/0432/3203/4980/files/74209604930.pdf
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/performance_appraisal_process_steps.pdf
    • https://cdn.shopify.com/s/files/1/0437/8984/4631/files/luwizudufilexi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8529/9876/files/89111535659.pdf
    • https://cdn.shopify.com/s/files/1/0464/7665/6790/files/riwalurakijitifonosi.pdf
    • https://cdn.shopify.com/s/files/1/0429/8106/4853/files/nba_2k_wallpaper.pdf
    • https://cdn.shopify.com/s/files/1/0435/6957/8147/files/32000385348.pdf
    • https://cdn.shopify.com/s/files/1/0434/5387/4329/files/antigona_furiosa_gambaro.pdf
    • https://cdn.shopify.com/s/files/1/0440/1581/2766/files/polisacaridos_concepto.pdf
    • https://cdn.shopify.com/s/files/1/0438/9198/2491/files/polynomial_factoring_worksheet.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009601.bin
873540da2f632ef1a1392260b4e4fef3ee54cd28bc33d48e1b899d86d2067f33		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9601 4844 bytes
font_01_sfnt_off0000a646.bin
853a356f450f80de48351ba62fa764ce5ddcdeb9d28e38f8f77f095cd3470280		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA646 11408 bytes
font_02_sfnt_off0000cbdd.bin
c41fc46809d2260d2d1a821cef6bb00dae560fdbad380da94a93f29d012df54e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCBDD 16164 bytes
font_03_sfnt_off0000e0f2.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE0F2 4324 bytes

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