Malicious PDF — malware analysis report

Static analysis result for SHA-256 22213543a6d506cf…

MALICIOUS

PDF

73.4 KB Created: 2020-08-05 11:08:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fc1be7fe46e7091d5694d99e487afa9 SHA-1: baf9b2c24f5d50625922e23f4adbb1e4a7063e2c SHA-256: 22213543a6d506cf188bf17db3f057c421e80d794c609e3ae089ce2e863a3d7d
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.ru). This suggests a link farm or SEO poisoning tactic designed to drive traffic to malicious infrastructure. The document body contains garbled text along with the malicious URL, indicating it's likely a lure. The primary attack pattern involves redirecting users to malicious content via a link farm.

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=profenid+gotas+bula+pdf+anvisa
    • http://files.thegoldenmethod.com/uploads/1/3/1/6/131606407/nomeromijodawe.pdf
    • http://files.banhmiviet.co/uploads/1/3/1/6/131606346/bukewefuwatuz.pdf
    • http://files.ontargetmolecules.com/uploads/1/3/1/6/131607103/94da171b.pdf
    • http://files.jemosel.com/uploads/1/3/1/0/131070178/2832896.pdf
    • https://cdn.shopify.com/s/files/1/0436/9452/2518/files/46764268915.pdf
    • https://cdn.shopify.com/s/files/1/0432/1129/2827/files/28545806072.pdf
    • https://cdn.shopify.com/s/files/1/0432/3164/1767/files/foxfi_full_version_key_hack.pdf
    • https://cdn.shopify.com/s/files/1/0434/1334/0316/files/toxenulokaxinopexamibadez.pdf
    • https://cdn.shopify.com/s/files/1/0436/0349/3022/files/24180469157.pdf
    • https://cdn.shopify.com/s/files/1/0429/5157/3657/files/kayle_build_s6.pdf
    • https://cdn.shopify.com/s/files/1/0433/7054/5308/files/sobuwipularapopesamezus.pdf
    • https://cdn.shopify.com/s/files/1/0432/6558/9414/files/48116764600.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96626323422.pdf
    • https://cdn.shopify.com/s/files/1/0430/9280/3744/files/wadajib.pdf
    • https://cdn.shopify.com/s/files/1/0429/4151/3895/files/ffxiv_act_triggers_guide.pdf
    • https://cdn.shopify.com/s/files/1/0434/1265/2194/files/21634477897.pdf
    • https://cdn.shopify.com/s/files/1/0428/5412/1635/files/92361381102.pdf
    • https://cdn.shopify.com/s/files/1/0431/1682/2692/files/bezolon.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_off0000cf7d.bin
612c66a45eb7b4708ef48fadfcd6d7aac2fb5440dd51c63f694ef1dbcc16177a
pdf-font-stream PDF embedded font (sfnt) at offset 0xCF7D 5292 bytes
font_01_sfnt_off0000e180.bin
4cf8b8bd226437c01a8d42b44769442c06cac94225e018e33c79b6199fad4cbb
pdf-font-stream PDF embedded font (sfnt) at offset 0xE180 12588 bytes
font_02_sfnt_off000109ec.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x109EC 4324 bytes