Malicious PDF — malware analysis report

Static analysis result for SHA-256 e91d95acb4ebfd11…

MALICIOUS

PDF

43.5 KB Created: 2020-08-04 04:16:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b55df8a08ffe601966f0f728c92c671b SHA-1: 4ff28fb835d6d3f06fdb000eda548615cee1ed3e SHA-256: e91d95acb4ebfd11679f301eb4fb752b9a26c0cf18101410277c401a1828d7d2
128 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure related to 'appointed person lifting operations' and includes the malicious URL. This indicates the document is designed to redirect users to malicious infrastructure, likely for further exploitation or credential harvesting.

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=appointed+person+lifting+operations+pdf
    • http://files.jambandpurist.com/uploads/1/3/1/8/131856365/76af5249.pdf
    • http://files.fiddleonthefarm.com/uploads/1/3/1/4/131408100/5296344.pdf
    • http://files.fluidfitperformancetraining.com/uploads/1/3/2/7/132741081/7022ec421ae.pdf
    • http://files.franklinvolleyball.org/uploads/1/3/0/8/130815277/8813793.pdf
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/34005199215.pdf
    • https://cdn.shopify.com/s/files/1/0431/7564/1247/files/kulidudonemijafoto.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/lalodifamuwubufatifez.pdf
    • https://cdn.shopify.com/s/files/1/0437/9358/0189/files/gejoja.pdf
    • https://cdn.shopify.com/s/files/1/0430/2965/9805/files/megizinugag.pdf
    • https://cdn.shopify.com/s/files/1/0435/7960/5147/files/probability_and_statistics_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0429/9754/7157/files/gutogaramexi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5630/8123/files/metal_a_headbanger_s_journey.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12086745869.pdf
    • https://cdn.shopify.com/s/files/1/0434/6498/2693/files/zuzevugafewafepovivalux.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pejodogidevetakuranuwa.pdf
    • https://cdn.shopify.com/s/files/1/0428/2118/9788/files/92408351232.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_off00005f8d.bin
335e0d03f2d178eb4c0383bc7d222d8aeb1a86a689eebbc76f9608b178985ca2
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F8D 4988 bytes
font_01_sfnt_off00007086.bin
69d7d272e78e815ffedb49f13ad73d2dbc4906087e22fddad6224c0e9f3b669d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7086 10024 bytes
font_02_sfnt_off000092c8.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x92C8 4324 bytes