Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e0c0e456aa20abd…

MALICIOUS

PDF

45.5 KB Created: 2020-09-07 05:13:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b5cceb7f0b9a18f61903a9713e6a0407 SHA-1: d6d5adb36271d8d70f722dddb1ccb7d43be5f0bc SHA-256: 2e0c0e456aa20abd323c301c1600ed21e84fc1512499b7f4ec3efbd99a74d5e0
150 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to calculation formulas and the malicious URL. This suggests a social engineering lure to drive traffic to malicious infrastructure.

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.me/wix?keyword=formule+de+calcul+du+pourcentage+d%2527+augmentation
    • https://cdn.shopify.com/s/files/1/0437/5629/0206/files/auto_clutch_manual_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46283819311.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/63016720996.pdf
    • https://cdn.shopify.com/s/files/1/0429/5901/2006/files/gta_5_ps4_cheats.pdf
    • https://cdn.shopify.com/s/files/1/0454/7867/4584/files/lexofujosojuketexus.pdf
    • https://cdn.shopify.com/s/files/1/0437/5507/7781/files/91994139575.pdf
    • https://cdn.shopify.com/s/files/1/0430/9604/7783/files/pifobewo.pdf
    • https://cdn.shopify.com/s/files/1/0437/3685/8773/files/segenumijo.pdf
    • https://cdn.shopify.com/s/files/1/0461/7591/2090/files/35588473997.pdf
    • https://static.usrfiles.com/ugd/b8c837_b2310afeaac745869d814c728603b873.pdf
    • https://static.usrfiles.com/ugd/de60da_1f01758ed4124d01b7e33e378fdb0613.pdf
    • https://static.usrfiles.com/ugd/b8c837_ce9be25263ae42d2b74b1bbd6293a363.pdf
    • https://static.usrfiles.com/ugd/2d797c_3f9ace97f6b346ae8f36776d604867ec.pdf
    • https://static.usrfiles.com/ugd/b8c837_c1c55af24b0a4521af701ff3025378bd.pdf
    • https://cdn.shopify.com/s/files/1/0433/3069/9414/files/isobars_and_isotherms.pdf
    • https://cdn.shopify.com/s/files/1/0429/2762/0263/files/8617884586.pdf
    • https://cdn.shopify.com/s/files/1/0464/9435/1512/files/arginina_funcion.pdf
    • https://cdn.shopify.com/s/files/1/0430/9522/8565/files/52891851867.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_off00006f46.bin
0a2785cc54a7b1f4ad8d54237baa04c838d2ea93b0c3a338228bb253b8399f43		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F46 5204 bytes
font_01_sfnt_off000080ed.bin
b149cf1aed54cf5a315c5e4b92ea247b8d4e4af1dc2de4c615549f7e51b1c65f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80ED 12084 bytes

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