Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f5b488644b0f06d…

MALICIOUS

PDF

91.3 KB Created: 2020-08-04 09:23:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bc5b717bc87cdea620bfbaf42f91a312 SHA-1: 104d9169e1c583d1699bd32ae15d6a8aceda4c92 SHA-256: 2f5b488644b0f06db86ca3a56740d0414e02ddc5f48c9bef02def099c61ac29c
128 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains the same URL. This indicates the primary goal is to redirect the user to a malicious site, likely for further exploitation or credential harvesting. The PDF also contains a link farm heuristic, suggesting it's part of a larger SEO poisoning campaign.

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.cc/pify?keyword=harry+potter+and+the+deathly+hallows+bloomsbury+pdf+download
    • http://files.retreatinsider.net/uploads/1/3/1/3/131379803/mafafat.pdf
    • http://files.exmouthcaninecentre.co.uk/uploads/1/3/0/8/130874128/jenasaj.pdf
    • http://files.kidsaroundaustin.com/uploads/1/3/1/4/131438843/1379400.pdf
    • http://files.wbxztv.com/uploads/1/3/1/4/131409884/a4f9c61094.pdf
    • http://files.mikearcherphotography.com/uploads/1/3/0/9/130969624/wupixiv.pdf
    • https://cdn.shopify.com/s/files/1/0433/6123/9192/files/rekejumadawus.pdf
    • https://cdn.shopify.com/s/files/1/0431/7508/4193/files/zibixefenowodaripizik.pdf
    • https://cdn.shopify.com/s/files/1/0435/3218/9860/files/git_overwrite_local_file.pdf
    • https://cdn.shopify.com/s/files/1/0437/0766/2504/files/34821944597.pdf
    • https://cdn.shopify.com/s/files/1/0435/0076/5336/files/46534911730.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pesaveput.pdf
    • https://cdn.shopify.com/s/files/1/0433/5943/6951/files/77898301881.pdf
    • https://cdn.shopify.com/s/files/1/0433/1077/6478/files/botw_title_key.pdf
    • https://cdn.shopify.com/s/files/1/0435/5820/7643/files/96657210640.pdf
    • https://cdn.shopify.com/s/files/1/0435/4677/1607/files/34506133935.pdf
    • https://cdn.shopify.com/s/files/1/0430/9601/5002/files/14493624966.pdf
    • https://cdn.shopify.com/s/files/1/0432/8760/9497/files/xenazujeve.pdf
    • https://cdn.shopify.com/s/files/1/0428/8564/4447/files/5315087441.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_off00010a5a.bin
6a8838d83660faf516bbedab2332a1c8593a8f117677cbb57d6daf00045a829f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A5A 5412 bytes
font_01_sfnt_off00011c9d.bin
42405c53b15f2a814d2cd894bf50f79535639b90ed2a809ef7bd3be9476868da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11C9D 10728 bytes
font_02_sfnt_off00014150.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14150 4324 bytes
font_03_sfnt_off00014f4f.bin
11de4a647b65e0f87f3b193a0a6a7ed659ccb5dea6392df85f73301ca2f1389e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14F4F 4000 bytes

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