Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0d4d977bd3dd3a3…

MALICIOUS

PDF

40.8 KB Created: 2020-08-08 20:51:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b6ebfb6389b1fcf2a09649fc337e6380 SHA-1: 6fd6cf633b9921598c134b49414999cb5acce4ce SHA-256: e0d4d977bd3dd3a3607f98bf09b747aa70f4504e7c0a285633e5536f8782cd3e
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com. Additionally, it exhibits characteristics of a PDF SEO link farm, with numerous embedded links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure for a PDF download. The primary attack vector is likely a phishing attempt to redirect users to malicious content.

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=brahmacharya+hech+jivan+pdf+download
    • http://files.sdconference.org/uploads/1/3/1/3/131380279/tirel.pdf
    • http://files.rickysaputrayoga.com/uploads/1/3/0/8/130814682/310194.pdf
    • http://files.douglasmullerdesigns.com/uploads/1/3/1/8/131857818/605863.pdf
    • http://files.jordonministries.com/uploads/1/3/2/6/132682585/wezibe.pdf
    • https://cdn.shopify.com/s/files/1/0431/9094/3902/files/data_analysis_in_research_sample.pdf
    • https://cdn.shopify.com/s/files/1/0429/4678/9542/files/laxitifosawuboseralikor.pdf
    • https://cdn.shopify.com/s/files/1/0428/1594/6918/files/difference_between_stratified_and_cluster.pdf
    • https://cdn.shopify.com/s/files/1/0429/1087/5815/files/tuzamedeve.pdf
    • https://cdn.shopify.com/s/files/1/0437/6566/1845/files/desmos_quadratic_regression.pdf
    • https://cdn.shopify.com/s/files/1/0440/6244/1622/files/advocateship_mcq_model_test.pdf
    • https://cdn.shopify.com/s/files/1/0432/3377/1688/files/gigovusemazopata.pdf
    • https://cdn.shopify.com/s/files/1/0429/3692/6374/files/sowedokebu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2920/8992/files/voltage_regulator_ic.pdf
    • https://cdn.shopify.com/s/files/1/0432/6499/9590/files/85490674543.pdf
    • https://cdn.shopify.com/s/files/1/0434/9585/0150/files/statistical_inference_problems_and_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0435/7632/8355/files/25306545945.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_off0000476a.bin
9ae5a37f8d1fb81b9cb3d47135ff834a1e732f6ba1d066879e98d3d4743878d0
pdf-font-stream PDF embedded font (sfnt) at offset 0x476A 5596 bytes
font_01_sfnt_off00005a6b.bin
e034ab00cddbf1f16e9c6d3503546883a2c2931277ce73a430b759c05c82fb53
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A6B 9988 bytes
font_02_sfnt_off00007cde.bin
7f4086ddb59484f0bf552328234870b60e67a20ec0fbc499447384949f0b9159
pdf-font-stream PDF embedded font (sfnt) at offset 0x7CDE 7328 bytes