Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffdfee6a0b8e6db5…

MALICIOUS

PDF

44.4 KB Created: 2020-08-11 01:29:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0043af587436b3396b1677d07f5c62dc SHA-1: b90451677c8e047f0e3ef69a1a1715ea0071bb4e SHA-256: ffdfee6a0b8e6db54f73277e5f79445e17725cca5c1435c1244ef415d8b63ca2
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'https://ttraff.ru/pify?keyword=bocio+toxico+multinodular+pdf'. This suggests the document is designed to lure users to malicious infrastructure, likely for further exploitation or phishing. The ML classifier also strongly indicated maliciousness.

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.ru/pify?keyword=bocio+toxico+multinodular+pdf
    • http://files.fcsiservices.com/uploads/1/3/1/4/131438570/5970685.pdf
    • http://files.samanthasnyderart.com/uploads/1/3/0/7/130775221/mejixijorape.pdf
    • http://xopenoxe.victoriawejko.com/uploads/1/3/1/1/131164239/relaguteva.pdf
    • http://miwebixid.aylmerunitedchurch.ca/uploads/1/3/1/6/131636725/gakanofogaser.pdf
    • http://files.mybestieswholesale.com/uploads/1/3/2/6/132681579/kovivevosokin-lorop-jitanurebite.pdf
    • https://cdn.shopify.com/s/files/1/0436/2308/8290/files/xabataza.pdf
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/55022759656.pdf
    • https://cdn.shopify.com/s/files/1/0433/2450/6266/files/xidizifap.pdf
    • https://cdn.shopify.com/s/files/1/0437/0402/5243/files/what_does_inb4_mean.pdf
    • https://cdn.shopify.com/s/files/1/0429/0645/2131/files/azusa_street_book.pdf
    • https://cdn.shopify.com/s/files/1/0429/8702/8641/files/matukixunabewiwume.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70277109097.pdf
    • https://cdn.shopify.com/s/files/1/0433/9151/6826/files/gayatri_mantra_meaning_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0432/5428/4450/files/komotatebodujafa.pdf
    • https://cdn.shopify.com/s/files/1/0432/5425/1670/files/21790449598.pdf
    • https://cdn.shopify.com/s/files/1/0432/2784/0669/files/gapagoxoferexovujine.pdf
    • https://cdn.shopify.com/s/files/1/0432/1234/1416/files/nijajajavotufudexivopu.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_off000062e2.bin
1c43e91a010ebf77fc12ab499753aab15b1799fd047d39db004c775612fb8d2f
pdf-font-stream PDF embedded font (sfnt) at offset 0x62E2 5004 bytes
font_01_sfnt_off000073bf.bin
4d124421fe37ec2c4982168a970153b21ce5380132a5dbedf0f0c576eb660fa6
pdf-font-stream PDF embedded font (sfnt) at offset 0x73BF 10244 bytes
font_02_sfnt_off0000962d.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x962D 4324 bytes