Malicious PDF — malware analysis report

Static analysis result for SHA-256 8eee858cb5fbbc8c…

MALICIOUS

PDF

49.6 KB Created: 2020-08-28 04:48:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cb6404f397a1cc06a7cc2f16207a3bf0 SHA-1: 529b19a7dbb301c7f82651343097b51935b9aa68 SHA-256: 8eee858cb5fbbc8cfb2133da7766a7ec67bc969c1f51a22402492ab344f70e48
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains references to 'Pokemon sage rom zip' and the malicious URL, suggesting a lure for downloading potentially unwanted or malicious content. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm designed to attract traffic. No scripts were extracted from this sample.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=pokemon+sage+rom+zip
    • http://widug.shouqalhudaif.com/uploads/1/3/1/4/131482995/nixifulukizezowojik.pdf
    • http://files.prostarfastpitch.com/uploads/1/3/2/7/132710780/sivak_filaxutu.pdf
    • http://files.cailenfu.com/uploads/1/3/1/4/131437444/rutez_wubusaxofab_kajali_zuwogor.pdf
    • http://fudage.redclayphotography.org/uploads/1/3/0/7/130739197/6910871.pdf
    • https://cdn.shopify.com/s/files/1/0437/2784/7576/files/to_be_simple_present_tense.pdf
    • https://cdn.shopify.com/s/files/1/0434/7383/0040/files/angielski_nauka_swek.pdf
    • https://cdn.shopify.com/s/files/1/0433/6877/5841/files/23274340519.pdf
    • https://cdn.shopify.com/s/files/1/0429/0173/3542/files/mozofuvekakujupafip.pdf
    • https://cdn.shopify.com/s/files/1/0432/8642/9861/files/31805591699.pdf
    • https://cdn.shopify.com/s/files/1/0435/2638/9912/files/bums_syllabus_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/2085/2122/files/12057792362.pdf
    • https://cdn.shopify.com/s/files/1/0433/5144/1560/files/css3_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1587610690.pdf
    • https://cdn.shopify.com/s/files/1/0428/6382/0959/files/consent_to_medical_treatment_template.pdf
    • https://cdn.shopify.com/s/files/1/0431/3595/9202/files/alchimista_libro.pdf
    • https://cdn.shopify.com/s/files/1/0466/5471/8117/files/67278026076.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_off000080c2.bin
1a01f5843aa8716baee0f3a5a7409195c5fb4cef1ba5000d6df35e3dfd567115
pdf-font-stream PDF embedded font (sfnt) at offset 0x80C2 5224 bytes
font_01_sfnt_off0000927b.bin
6af67acd8978380ca0ac140e69fb7dd40fdbd4b98e23c390712c17fa631db265
pdf-font-stream PDF embedded font (sfnt) at offset 0x927B 12120 bytes