Malicious PDF — malware analysis report

Static analysis result for SHA-256 aee1181e76759b1e…

MALICIOUS

PDF

54.9 KB Created: 2020-08-06 19:22:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9e9b2b344455854c66504997c660990c SHA-1: b199363d66fed210af0f2b2454c2b7e739833f11 SHA-256: aee1181e76759b1ed50f50397f7fff6396ec7a6d70049c6ad88a75a4b35a5ab4
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=france+application+form+for+schengen+visa+pdf'. This URL is presented within the document body, suggesting a social engineering lure related to visa applications. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm or redirection strategy. No scripts were extracted, but the primary attack vector appears to be the malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=france+application+form+for+schengen+visa+pdf
    • http://files.silverbackart.com/uploads/1/3/2/6/132695329/wufuv_gukotiguranod_kedefa.pdf
    • http://files.rogueandfoxfloral.com/uploads/1/3/0/8/130814682/xadis_tadazobo_pesibitowubo.pdf
    • http://files.lydiavelarde.com/uploads/1/3/2/7/132712093/vabigud-tusokifegew-tubolaguku-ropuvetagaz.pdf
    • http://wijupinog.thefamilyschool443.com/uploads/1/3/1/1/131163599/10c32ab.pdf
    • http://files.priorityenvironmental.ca/uploads/1/3/2/7/132740415/poturowinu-pepurefeme-zomoxiru.pdf
    • https://cdn.shopify.com/s/files/1/0428/7633/8335/files/zovesaxu.pdf
    • https://cdn.shopify.com/s/files/1/0436/1846/7997/files/13651721022.pdf
    • https://cdn.shopify.com/s/files/1/0430/7881/1810/files/55183974281.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/44628440260.pdf
    • https://cdn.shopify.com/s/files/1/0430/7435/5351/files/46039929636.pdf
    • https://cdn.shopify.com/s/files/1/0433/3328/8088/files/xavixulegimusafon.pdf
    • https://cdn.shopify.com/s/files/1/0429/1900/2279/files/count_list_python.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78539107281.pdf
    • https://cdn.shopify.com/s/files/1/0431/4864/0418/files/bexevujug.pdf
    • https://cdn.shopify.com/s/files/1/0433/2892/9960/files/25484178754.pdf
    • https://cdn.shopify.com/s/files/1/0431/3966/1986/files/bewude.pdf
    • https://cdn.shopify.com/s/files/1/0438/4158/5314/files/2805316455.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_off000098ff.bin
63b3461da78839033dde145be00212d9c383a6d498837ff9873c860ddcbcdce1
pdf-font-stream PDF embedded font (sfnt) at offset 0x98FF 5584 bytes
font_01_sfnt_off0000abdd.bin
6e41283b5d68246825702e999221247eea35b596898eb50728bf4c86a53eb7a1
pdf-font-stream PDF embedded font (sfnt) at offset 0xABDD 10088 bytes