Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bf79b9338670aa3…

MALICIOUS

PDF

69.0 KB Created: 2020-08-07 23:52:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a677e264a37bd70172f73b8d34ddda5 SHA-1: 7784852afdf86406a8fdbd5adc60f720fad2023c SHA-256: 2bf79b9338670aa3104b37da73a7a873f1b51b65645b38ef076b440e38e00f9c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised as a league fixtures PDF. This redirector likely leads to a malicious payload. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious document.

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=a+league+fixtures+2020+19+pdf
    • http://files.thevoiceofheart.com/uploads/1/3/1/4/131437438/9d898534.pdf
    • http://files.cheadlesigns.com/uploads/1/3/1/3/131381614/toposupe.pdf
    • http://files.willowfree.ca/uploads/1/3/0/7/130740344/xiwodufa.pdf
    • http://files.thefaithlife.org/uploads/1/3/1/8/131856121/moluwopamanifa.pdf
    • http://files.residencystatements.net/uploads/1/3/1/3/131379792/jamarupujikako-sugipejunifolej-pezoj-tuwal.pdf
    • https://cdn.shopify.com/s/files/1/0428/3983/4780/files/12192209601.pdf
    • https://cdn.shopify.com/s/files/1/0428/6667/1782/files/rudisonarorujonit.pdf
    • https://cdn.shopify.com/s/files/1/0435/8340/6239/files/calculus_without_derivatives.pdf
    • https://cdn.shopify.com/s/files/1/0429/5317/9289/files/89466830631.pdf
    • https://cdn.shopify.com/s/files/1/0434/7900/7398/files/20939924845.pdf
    • https://cdn.shopify.com/s/files/1/0432/7643/5621/files/govudinixidesixokufipe.pdf
    • https://cdn.shopify.com/s/files/1/0427/7580/6119/files/finuroduwomewefukus.pdf
    • https://cdn.shopify.com/s/files/1/0432/0781/9422/files/7697839323.pdf
    • https://cdn.shopify.com/s/files/1/0434/4774/6710/files/67032583362.pdf
    • https://cdn.shopify.com/s/files/1/0438/4302/7104/files/9066618567.pdf
    • https://cdn.shopify.com/s/files/1/0428/3544/3875/files/7259813495.pdf
    • https://cdn.shopify.com/s/files/1/0430/2585/8714/files/76637538304.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86562581376.pdf
    • https://cdn.shopify.com/s/files/1/0434/7301/0845/files/85630512893.pdf
    • https://cdn.shopify.com/s/files/1/0437/6834/8830/files/zurawajifuwuki.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_off0000acc8.bin
0c92770846d9f90bec0b8c2bd8e1143efe325120a5328093fdc0de53c70beff7
pdf-font-stream PDF embedded font (sfnt) at offset 0xACC8 5748 bytes
font_01_sfnt_off0000c078.bin
4c909567cc75e218dc1725f92a04ee1eeb6a0785451bbc6dd2b2f5c880b015ec
pdf-font-stream PDF embedded font (sfnt) at offset 0xC078 15860 bytes
font_02_sfnt_off0000f189.bin
35c36d1c5b0151f7113f668961c29a6702b7fbcb471f379f14e28bcf1f9725f7
pdf-font-stream PDF embedded font (sfnt) at offset 0xF189 16064 bytes