Malicious PDF — malware analysis report

Static analysis result for SHA-256 d027d00cf820c5dd…

MALICIOUS

PDF

56.0 KB Created: 2020-08-17 05:45:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c35c1dee30ce555f2a5b9f9fa5604b56 SHA-1: aca431671223bb00343616bd0fc0121c1864b681 SHA-256: d027d00cf820c5ddf97ef309bdebc2b38d1f8c83cfeee91326ffef08cdafd473
150 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. The primary malicious URL, https://ttraff.cc/pify?keyword=jquery+ajax+form+data, is identified as a malicious redirector. This suggests the document is designed to lure users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted from this sample.

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.cc/pify?keyword=jquery+ajax+form+data
    • http://files.alderbowman.com/uploads/1/3/1/8/131856224/bekebaxapum.pdf
    • http://dewow.mytowergardenrecipes.ca/uploads/1/3/0/8/130873954/9fe93845003fd6.pdf
    • http://files.myjazztrumpet.com/uploads/1/3/2/7/132712233/748730dc.pdf
    • http://japenop.joystondsouza.com/uploads/1/3/1/1/131164250/9887345.pdf
    • https://cdn.shopify.com/s/files/1/0433/8126/0440/files/tugipaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0346/9221/files/27618697899.pdf
    • https://cdn.shopify.com/s/files/1/0427/6980/9564/files/nirumalinoresumuvapijari.pdf
    • https://cdn.shopify.com/s/files/1/0438/5076/0357/files/fazanerilabiragiwun.pdf
    • https://cdn.shopify.com/s/files/1/0438/4371/5229/files/canada_post_postage_rates.pdf
    • https://cdn.shopify.com/s/files/1/0436/1751/7725/files/83942828993.pdf
    • https://cdn.shopify.com/s/files/1/0437/2217/8710/files/clash_of_clans_dark_soul.pdf
    • https://cdn.shopify.com/s/files/1/0428/1165/4307/files/sermones_biblicos_para_predicar.pdf
    • https://cdn.shopify.com/s/files/1/0429/0979/4463/files/zaxugubufadawive.pdf
    • https://cdn.shopify.com/s/files/1/0430/4912/3993/files/60396110257.pdf
    • https://cdn.shopify.com/s/files/1/0428/2833/3219/files/32738906440.pdf
    • https://cdn.shopify.com/s/files/1/0435/0545/1160/files/mezobuta.pdf
    • https://cdn.shopify.com/s/files/1/0429/1208/8231/files/momozewikobof.pdf
    • https://cdn.shopify.com/s/files/1/0432/1683/0632/files/auschwitz_doctor_s_eyewitness_account.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_off0000858e.bin
c011265c1c5d11ceeac1d89ad5f5a2f36a939ef5682d2eb67fb0a44665d03d92
pdf-font-stream PDF embedded font (sfnt) at offset 0x858E 5204 bytes
font_01_sfnt_off00009740.bin
9fcfd2b2c12c9d480c0beec3ee39f05b9e518edc5177a7a5fcc68dff0371f8a2
pdf-font-stream PDF embedded font (sfnt) at offset 0x9740 2092 bytes
font_02_sfnt_off0000a0e1.bin
1ef842a69a7077114521cadff5fe087a4c9db845d0d7c78b07ad72ba43be336c
pdf-font-stream PDF embedded font (sfnt) at offset 0xA0E1 16068 bytes