Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b2871b5b5f48488…

MALICIOUS

PDF

43.7 KB Created: 2020-08-20 05:16:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79ecf9f1e63fcbdfb14b12267b1caa4f SHA-1: 23c508733e3f397ca0a84876e377e9cedfa2d0a4 SHA-256: 1b2871b5b5f4848805ff699f2f63733e34d16b16b06f46c1c4638fbd5ba1057f
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=cctv+camera+monitoring+software'. This suggests the document is designed to redirect users to malicious sites under the guise of providing information on CCTV monitoring software. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=cctv+camera+monitoring+software
    • http://ziwazez.moonlightcruises.net/uploads/1/3/1/3/131384169/gutusisolusulanefo.pdf
    • http://files.fennoyrittajat.fi/uploads/1/3/0/9/130968950/0aa5ca2.pdf
    • https://cdn.shopify.com/s/files/1/0438/4745/0784/files/functional_analysis_by_pk_jain_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/6309/9040/files/2321435024.pdf
    • https://cdn.shopify.com/s/files/1/0438/1147/1522/files/bio_data_form_word_document.pdf
    • https://cdn.shopify.com/s/files/1/0429/3830/2627/files/ffxiv_overlay_plugin_act.pdf
    • https://cdn.shopify.com/s/files/1/0434/1799/3366/files/regression_analysis_in_data_mining.pdf
    • https://cdn.shopify.com/s/files/1/0435/4405/1864/files/venub.pdf
    • https://cdn.shopify.com/s/files/1/0438/7468/0987/files/76906172000.pdf
    • https://cdn.shopify.com/s/files/1/0437/0392/6938/files/81761407725.pdf
    • https://cdn.shopify.com/s/files/1/0430/0885/2117/files/39045053150.pdf
    • https://cdn.shopify.com/s/files/1/0427/4126/8647/files/dudadozire.pdf
    • https://cdn.shopify.com/s/files/1/0433/9059/9319/files/valivipemobubimuxafijil.pdf
    • https://cdn.shopify.com/s/files/1/0438/9833/9496/files/kiwamudozipojoda.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_off00006da1.bin
e73ffe9b8cd0db8f98e4222ad76a2a13c3e818c00aaedd8ac3238e9433ae91a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA1 5228 bytes
font_01_sfnt_off00007f65.bin
47de65d29320ca39d129f027666b606ec39fb7c2c958dd22471ce4ea568e741d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F65 10208 bytes

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