Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8215eb9998f3aa1…

MALICIOUS

PDF

104.6 KB Created: 2020-08-01 02:28:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b210299df24bebe264cdfc1f818e290d SHA-1: 2a35eadd1d62184f97ee77aa0c89ac9765babbec SHA-256: c8215eb9998f3aa1aec156343ab504f95fa2d66f66303adf1872e6a2bbda7afc
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The embedded URL points to 'ttraff.com', a known malicious redirector. The document body, though heavily obfuscated, contains the same URL, suggesting it is the primary lure. The presence of numerous Shopify-hosted PDF links further supports the link farm heuristic, indicating a broad distribution attempt.

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.com/pify?keyword=button+css+media+queries
    • http://files.myheartbelongsto.com/uploads/1/3/1/4/131407036/5763902.pdf
    • http://files.pacificcattle.com/uploads/1/3/0/7/130739146/zimug.pdf
    • http://files.worldwar2man.com/uploads/1/3/0/7/130776245/sijudilabutamikijobe.pdf
    • https://cdn.shopify.com/s/files/1/0437/2096/6293/files/zixarewi.pdf
    • https://cdn.shopify.com/s/files/1/0433/5783/1326/files/tebokagekofivu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0158/5570/files/zewewubuvoj.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98012128422.pdf
    • https://cdn.shopify.com/s/files/1/0427/8861/8396/files/install_zsh_mac.pdf
    • https://cdn.shopify.com/s/files/1/0434/3264/0664/files/wogezapexofikonewasobota.pdf
    • https://cdn.shopify.com/s/files/1/0433/9033/7182/files/20492895754.pdf
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/60067144304.pdf
    • https://cdn.shopify.com/s/files/1/0438/8762/4344/files/faxepaxonarib.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21884581804.pdf
    • https://cdn.shopify.com/s/files/1/0430/5059/8562/files/48018675132.pdf
    • https://cdn.shopify.com/s/files/1/0437/0900/5978/files/parositu.pdf
    • https://cdn.shopify.com/s/files/1/0432/7525/5968/files/dujoliros.pdf
    • https://cdn.shopify.com/s/files/1/0435/1423/2984/files/54842810164.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_off000136fe.bin
9657690b6af511d9441c109edca262cb43a1294cc9775d3dd2a827dc2561a0cf
pdf-font-stream PDF embedded font (sfnt) at offset 0x136FE 5228 bytes
font_01_sfnt_off000148a9.bin
80f1d5399f76557d466820c850215db9f4ed0cd3130d95d84ec61b352878c078
pdf-font-stream PDF embedded font (sfnt) at offset 0x148A9 17916 bytes
font_02_sfnt_off00017fa0.bin
f0a8b786da721c7415a59d91fbce3b20bbb98ea32e48857ac1ff22d53b00ec29
pdf-font-stream PDF embedded font (sfnt) at offset 0x17FA0 16144 bytes