Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2a4845758f606a6…

MALICIOUS

PDF

73.5 KB Created: 2020-08-01 23:20:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74fb57e750f4bc2a9af3a0a4df2a9ce3 SHA-1: e62fb8706e0277b8e56afdd2992795f742f864b0 SHA-256: b2a4845758f606a6ff901fbde3a7e3bf09f4f90705bafe185663c4805535e056
128 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=acura+tl+manuals'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=acura+tl+manuals' and text related to car manuals, suggesting a lure to disguise malicious intent. The presence of a malicious redirector indicates an attempt to lead the user to a harmful destination.

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=acura+tl+manuals
    • http://files.walkinglightlytravel.com/uploads/1/3/2/6/132682731/6808018.pdf
    • http://files.motionxdance.org/uploads/1/3/1/8/131856531/xozubobogup.pdf
    • http://files.cathyjo.com/uploads/1/3/1/8/131871780/8011757.pdf
    • http://files.shophomegirl.com/uploads/1/3/1/6/131606762/e61f30.pdf
    • https://cdn.shopify.com/s/files/1/0434/3614/6855/files/rituloxog.pdf
    • https://cdn.shopify.com/s/files/1/0432/8305/4757/files/dajofumadolujow.pdf
    • https://cdn.shopify.com/s/files/1/0434/4699/3052/files/zijewagu.pdf
    • https://cdn.shopify.com/s/files/1/0429/5573/5193/files/49761150121.pdf
    • https://cdn.shopify.com/s/files/1/0433/6710/4668/files/vesemetis.pdf
    • https://cdn.shopify.com/s/files/1/0428/6332/9446/files/20102596851.pdf
    • https://cdn.shopify.com/s/files/1/0432/7312/6052/files/pulijimefotirodiloletuw.pdf
    • https://cdn.shopify.com/s/files/1/0430/8955/9705/files/nalatelemovetat.pdf
    • https://cdn.shopify.com/s/files/1/0432/9242/6405/files/musuvuzu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0531/2154/files/mulovag.pdf
    • https://cdn.shopify.com/s/files/1/0434/5459/5224/files/5275800730.pdf
    • https://cdn.shopify.com/s/files/1/0429/7955/7529/files/tamiroxazotini.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_off0000bad7.bin
c85205b8b7191a73da0b1cbda60644b0581b4e730a2cdc2ce3d3dfbd40e3663e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBAD7 4540 bytes
font_01_sfnt_off0000ca0c.bin
3c35373e92b2b901961923623c30b6d27bb7ebda022d2f4df33287fa6ba436e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCA0C 13496 bytes
font_02_sfnt_off0000f5da.bin
713933360072c9d59346590fad668f98c3603c6d2b72ed941ce85481f6af0b74		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF5DA 16060 bytes
font_03_sfnt_off00010a6c.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A6C 4324 bytes

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