Malicious PDF — malware analysis report

Static analysis result for SHA-256 875a6e51894fe7e6…

MALICIOUS

PDF

45.2 KB Created: 2020-08-12 19:30:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95f19534d1155c18d13db3986e742150 SHA-1: 4132a04a0fff7d318dd115ccad5e97a5e03c2a9b SHA-256: 875a6e51894fe7e6d28cd24d76865a266fe4a03a5ab370c2d79f16ff7e1037e5
128 Risk Score

Malware Insights

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

The PDF file contains a link farm and a malicious redirector URL, indicating a phishing or redirection attempt. The document body, though corrupted, contains text related to invoices and payment, aligning with the 'SE_INVOICE_LURE' heuristic. The primary malicious URL identified is https://ttraff.cc/pify?keyword=imprest+system+of+petty+cash+book+pdf, which likely leads to a malicious payload or phishing page.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=imprest+system+of+petty+cash+book+pdf
    • http://files.illuminatethejourney.com/uploads/1/3/0/8/130813931/tukopuzun_zukolujodemezi_jazobe_xegixavasep.pdf
    • http://fuvuwa.twothreefivenine.com/uploads/1/3/1/6/131606339/6332656.pdf
    • http://kigowi.wearehopecommunity.com/uploads/1/3/2/3/132303382/tifemuzogimevanidube.pdf
    • http://dajix.liquorburn.com/uploads/1/3/1/8/131856462/petawogezozazekuz.pdf
    • http://files.rabbipauljacobson.com/uploads/1/3/2/8/132814241/1655866.pdf
    • https://cdn.shopify.com/s/files/1/0439/5070/2750/files/les_thanatonautes.pdf
    • https://cdn.shopify.com/s/files/1/0428/3754/1031/files/43632344661.pdf
    • https://cdn.shopify.com/s/files/1/0429/0979/4463/files/20646598585.pdf
    • https://cdn.shopify.com/s/files/1/0431/9304/1053/files/nububosamokiletuv.pdf
    • https://cdn.shopify.com/s/files/1/0435/5470/1461/files/23339126235.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bujebunefevefosilipepeju.pdf
    • https://cdn.shopify.com/s/files/1/0434/3028/1381/files/xetovodirojagatuna.pdf
    • https://cdn.shopify.com/s/files/1/0438/0311/5682/files/berliner_platz_3_neu_glossar_griechisch.pdf
    • https://cdn.shopify.com/s/files/1/0431/7777/1164/files/teruxolikepexo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nemevisofopanufu.pdf
    • https://cdn.shopify.com/s/files/1/0436/5526/6457/files/6106968251.pdf
    • https://cdn.shopify.com/s/files/1/0429/5062/3385/files/31497471090.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_off000064b1.bin
25c7808aaf30f308b9021bb5d6195abd4e2de2950c75021687fd6f68e9520bba
pdf-font-stream PDF embedded font (sfnt) at offset 0x64B1 5240 bytes
font_01_sfnt_off0000767d.bin
badec30f24400ae166eb2a325feeeb1ced2add9a165ab311c4782e53655172db
pdf-font-stream PDF embedded font (sfnt) at offset 0x767D 10352 bytes
font_02_sfnt_off000099a4.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x99A4 4324 bytes