Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2621eb2b21b963a…

MALICIOUS

PDF

37.0 KB Created: 2020-08-21 16:56:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d3d563f32329a9e9e95b13b54517446 SHA-1: e99d613530b4cbe9d53c1364942bf254e0d497a4 SHA-256: c2621eb2b21b963af39dad939b202b1d55b5f2ce12c918b6f2fea3607f8c6678
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=motorola+apx+4000+manual'. This indicates an attempt to lure the user to a malicious site. The document body also contains this URL, reinforcing the lure. The presence of numerous other PDF links, some pointing to Shopify, suggests a link farm or SEO poisoning tactic to increase visibility.

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.com/pify?keyword=motorola+apx+4000+manual
    • http://files.radoslawrogoza.com/uploads/1/3/1/3/131384300/nolirujowexeboj_wetased_nedenegojizi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/22271122494.pdf
    • https://cdn.shopify.com/s/files/1/0428/7945/1289/files/velegapinamamulu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1164/files/envision_math_grade_4_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0432/2492/4319/files/568289750.pdf
    • https://cdn.shopify.com/s/files/1/0433/6962/7799/files/rigapigabokafadu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bovegutug.pdf
    • https://cdn.shopify.com/s/files/1/0432/3350/9535/files/pebuvejize.pdf
    • https://cdn.shopify.com/s/files/1/0435/0427/1524/files/97573483970.pdf
    • https://cdn.shopify.com/s/files/1/0431/6758/0322/files/anaerobic_wastewater_treatment.pdf
    • https://cdn.shopify.com/s/files/1/0433/6336/9125/files/54762805329.pdf
    • https://cdn.shopify.com/s/files/1/0437/6412/1757/files/standard_tv_sizes.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_off000048b7.bin
18935072cf4e5c2a40ca1f7c286aee1afff0bf018c5bda6efc023618cf800980		 pdf-font-stream PDF embedded font (sfnt) at offset 0x48B7 4804 bytes
font_01_sfnt_off000058f1.bin
5bec01eb16d2b9e0d3526da1cd256c3e1a5578248d5ede95daf71faba57bc352		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58F1 9508 bytes
font_02_sfnt_off00007959.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7959 4324 bytes

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