Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ee1366e86fbe33c…

MALICIOUS

PDF

41.0 KB Created: 2020-08-04 18:01:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ea6093e5dd4a9ca50551e06b192682b SHA-1: 087c7c7037e072cb84f0f95987d91bbc249a2f27 SHA-256: 8ee1366e86fbe33c720c70588f0aba8be4dd8c06cc9ea24164baecada9522fd4
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=pdf+converter+computer+bild'. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution. The document body, though heavily obfuscated, contains references to 'pdf converter computer bild' and the authoring application 'wkhtmltopdf', reinforcing the lure. No scripts were extracted from this sample.

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=pdf+converter+computer+bild
    • http://files.katehansoncreative.com/uploads/1/3/0/7/130739616/ruzitep-serenikuxopo-jijotisepexeri-zepulavupe.pdf
    • http://files.sketchytours.com/uploads/1/3/2/7/132740805/gipazavurekoke-dadokidasukom-zetidavuwovesiz.pdf
    • http://zipojo.bikramstjohns.com/uploads/1/3/1/4/131437532/fabuvofadusatafib.pdf
    • http://files.missionadventuretours.com/uploads/1/3/0/8/130874264/xemalula.pdf
    • http://files.abbyweiss.com/uploads/1/3/1/4/131406518/fa520.pdf
    • https://cdn.shopify.com/s/files/1/0432/7833/6165/files/67664825685.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65939759823.pdf
    • https://cdn.shopify.com/s/files/1/0430/4994/3202/files/vodivezawatamo.pdf
    • https://cdn.shopify.com/s/files/1/0435/6482/6783/files/warugador.pdf
    • https://cdn.shopify.com/s/files/1/0432/3095/3627/files/kepuzudalasovijiwinamo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9158/2357/files/95426076389.pdf
    • https://cdn.shopify.com/s/files/1/0434/4751/7341/files/kedefulize.pdf
    • https://cdn.shopify.com/s/files/1/0433/4062/8136/files/discord_record_audio.pdf
    • https://cdn.shopify.com/s/files/1/0440/3462/1590/files/ronepojiz.pdf
    • https://cdn.shopify.com/s/files/1/0430/6095/3249/files/60582370992.pdf
    • https://cdn.shopify.com/s/files/1/0430/1540/5725/files/kokigulugarav.pdf
    • https://cdn.shopify.com/s/files/1/0439/9045/0334/files/1737693348.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_off000054e4.bin
581e5cae41a389453ff0394b79c2f3ac9b0590293ece1d7962c92a1ea744e095
pdf-font-stream PDF embedded font (sfnt) at offset 0x54E4 4996 bytes
font_01_sfnt_off000065c2.bin
2c968861609865a4481ea7de882e64858c56f4e8c1b5012cf701a318866e286c
pdf-font-stream PDF embedded font (sfnt) at offset 0x65C2 10268 bytes
font_02_sfnt_off000088d9.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x88D9 4324 bytes