Malicious PDF — malware analysis report

Static analysis result for SHA-256 a94fbb7aaa824daa…

MALICIOUS

PDF

68.5 KB Created: 2020-08-03 14:57:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 27b1abcd88b2a9cf321cef732adbdeca SHA-1: 3ac0f0085ba0881cde7acb54655a0dcd55620c72 SHA-256: a94fbb7aaa824daaadc8a55a30f8693f447e4f34d5549d1deb6367fcf5acab42
130 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.ru/pify?keyword=agile+project+management+handbook+v2.+0+pdf+download', is identified as a malicious redirector. This suggests the document is designed to lure users into clicking deceptive links, likely leading to further malicious content or exploits. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=agile+project+management+handbook+v2.+0+pdf+download
    • http://files.eatsxm.com/uploads/1/3/1/6/131606331/669884.pdf
    • http://files.coulterhouseapparel.com/uploads/1/3/0/9/130969489/8bb69d928c72583.pdf
    • http://files.remfivevr.com/uploads/1/3/0/7/130739621/2435762.pdf
    • http://notewum.shopfoxandfeather.net/uploads/1/3/0/9/130969592/jatexulajodi.pdf
    • http://files.fllgalaxygears.com/uploads/1/3/1/1/131163564/ruxawoloxovaza-vodage-mevuxe.pdf
    • https://cdn.shopify.com/s/files/1/0430/1737/1797/files/vigikewebusubisokak.pdf
    • https://cdn.shopify.com/s/files/1/0430/9306/5877/files/zivomulipaxokobunituzuv.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7485095273.pdf
    • https://cdn.shopify.com/s/files/1/0433/4606/7621/files/wasibilaxoraladuteroxavud.pdf
    • https://cdn.shopify.com/s/files/1/0431/0794/2549/files/javixivajegakagumo.pdf
    • https://cdn.shopify.com/s/files/1/0436/5497/1557/files/72944228265.pdf
    • https://cdn.shopify.com/s/files/1/0435/4146/3189/files/wetoditikuronur.pdf
    • https://cdn.shopify.com/s/files/1/0451/1324/5848/files/mysql_split_string_into_rows.pdf
    • https://cdn.shopify.com/s/files/1/0433/9823/4270/files/98120741989.pdf
    • https://cdn.shopify.com/s/files/1/0433/2398/1979/files/kavinifuvok.pdf
    • https://cdn.shopify.com/s/files/1/0433/4292/1886/files/72452863588.pdf
    • https://cdn.shopify.com/s/files/1/0432/1171/8820/files/bewalufosobeguliwonise.pdf
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/nonutarelarib.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_off0000b105.bin
71337577fef36e46ce718a09ca2836f03782d5f6ddaf742f46b904026ecd8998		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB105 1560 bytes
font_01_sfnt_off0000b8f6.bin
3b64b6275c463ac34dba2970a8835593bfa1514c3a0c6b5834d7b74cecf25e0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB8F6 5908 bytes
font_02_sfnt_off0000ccf3.bin
ca2f2cf90460f9ab4063626d78df3e9aff8ae5562e27d155f1264b99d22ff5df		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCCF3 11372 bytes
font_03_sfnt_off0000f39d.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF39D 4324 bytes

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