Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0f053f2adb15271…

MALICIOUS

PDF

40.8 KB Created: 2020-08-04 19:08:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46e62178b5820ff228594bc5e2b6bc36 SHA-1: c93ccf9e36256561cc6672043ccb76d14a0669c4 SHA-256: d0f053f2adb152712165d39f7b5ee33580008587737a296864ff1de224d7dced
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure. This URL, 'https://ttraff.cc/pify?keyword=ecological+theory+by+urie+bronfenbrenner+pdf', is designed to redirect users to potentially harmful content. The presence of a link farm heuristic further suggests an attempt to manipulate search engine results or distribute malicious links.

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.cc/pify?keyword=ecological+theory+by+urie+bronfenbrenner+pdf
    • http://files.dvgradnight.com/uploads/1/3/0/7/130740049/mobubumonakidex.pdf
    • http://files.holidayapartments-berlin.com/uploads/1/3/0/9/130969497/xifoposajepe.pdf
    • http://files.quantummachinelearning.org/uploads/1/3/1/4/131438002/1f501d56aea6.pdf
    • http://files.nosurrenderhockeychallenge.com/uploads/1/3/0/7/130776562/vadagotar.pdf
    • http://files.unionkitchenny.com/uploads/1/3/2/6/132681398/b5001f0a3e1.pdf
    • https://cdn.shopify.com/s/files/1/0429/1375/9395/files/dufugalikeboxox.pdf
    • https://cdn.shopify.com/s/files/1/0433/5108/1118/files/5144154981.pdf
    • https://cdn.shopify.com/s/files/1/0432/2502/2621/files/sipepojalotepurumiwunad.pdf
    • https://cdn.shopify.com/s/files/1/0435/0381/2773/files/55589460812.pdf
    • https://cdn.shopify.com/s/files/1/0429/5042/6780/files/zofef.pdf
    • https://cdn.shopify.com/s/files/1/0432/4337/2703/files/introduction_to_statistical_learning_github.pdf
    • https://cdn.shopify.com/s/files/1/0427/7148/0742/files/oceanic_time_warner_cable_oahu_tv_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tikodizexosuva.pdf
    • https://cdn.shopify.com/s/files/1/0428/8220/3801/files/kevoguzafabupuvevejumomif.pdf
    • https://cdn.shopify.com/s/files/1/0433/9915/1768/files/29836543404.pdf
    • https://cdn.shopify.com/s/files/1/0428/7807/5036/files/burulososikexetomaju.pdf
    • https://cdn.shopify.com/s/files/1/0433/9879/1322/files/pekegupamo.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061c3.bin
1779b081d68c3ca02a246015354b4392a43fe1f6fabb429b5b0861dd329a076a
pdf-font-stream PDF embedded font (sfnt) at offset 0x61C3 5436 bytes
font_01_sfnt_off00007441.bin
232a2f7713f1564685901ad81d16a3feaaf01a1070a23c64a1592e23deeedfae
pdf-font-stream PDF embedded font (sfnt) at offset 0x7441 9908 bytes