Malicious PDF — malware analysis report

Static analysis result for SHA-256 b36e37079f4a4065…

MALICIOUS

PDF

36.6 KB Created: 2020-08-12 04:25:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 614d36fd7533db255873b6ff863c89fa SHA-1: b817104ae5e5ae6f441ca1ac8a5218ac8186afb1 SHA-256: b36e37079f4a4065cda2eb8e6979f770c4eb10e54e97bfc3200e455be12e9720
160 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The document body is heavily obfuscated but contains URLs that are likely part of a link farm designed to distribute malicious content or lead to phishing sites. The presence of a 'Password-protected archive lure' heuristic suggests the document may be a precursor to delivering a password-protected malicious archive.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=ezviz+cs+cv310+pdf
    • http://dajibov.tulelakecycles.com/uploads/1/3/0/8/130813030/petididitabugit-gotipowej-nobipomo.pdf
    • http://files.chatteriemainecoonroswell.com/uploads/1/3/0/9/130969790/bagonosivujeta.pdf
    • http://files.warungfalafelbali.com/uploads/1/3/0/7/130775145/betugikafa_junapesiwuxebi_defezome_voden.pdf
    • http://files.bingpondfest.com/uploads/1/3/0/8/130874055/18e5245459.pdf
    • https://cdn.shopify.com/s/files/1/0433/3928/4645/files/24313783683.pdf
    • https://cdn.shopify.com/s/files/1/0431/0273/2448/files/fiwowetenexotoruxewiti.pdf
    • https://cdn.shopify.com/s/files/1/0430/3863/8241/files/liwunibojukufugozogowel.pdf
    • https://cdn.shopify.com/s/files/1/0434/1003/0759/files/zixevuful.pdf
    • https://cdn.shopify.com/s/files/1/0429/4865/7311/files/32014799042.pdf
    • https://cdn.shopify.com/s/files/1/0429/7195/5351/files/nimokeza.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/business_model_canvas_en_francais.pdf
    • https://cdn.shopify.com/s/files/1/0434/1268/4967/files/php_fpm_conf.pdf
    • https://cdn.shopify.com/s/files/1/0437/6517/0334/files/doweselevuzuvajiv.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/voxetevew.pdf
    • https://cdn.shopify.com/s/files/1/0435/2393/2311/files/meripomovegutosanufawije.pdf
    • https://cdn.shopify.com/s/files/1/0437/3846/4405/files/technical_file_example.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_off00005170.bin
229d1cee76afd11317cbf0d1755297558802dc2658c0f333abc42875fc20ebad
pdf-font-stream PDF embedded font (sfnt) at offset 0x5170 5236 bytes
font_01_sfnt_off00006368.bin
4ad45e4d7d2cecb53da00780d779a761ba9ad6bd498e12ce1ac9c9290cca3c88
pdf-font-stream PDF embedded font (sfnt) at offset 0x6368 10084 bytes