Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6c6aaf0df19958a…

MALICIOUS

PDF

61.8 KB Created: 2020-08-20 22:31:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 35a067be12290792abc0a6bc43f1798e SHA-1: fa05622a0916675620bc25ca37b2a438308dc9b5 SHA-256: d6c6aaf0df19958a168026b41ef7e4e51b6ba9ff8d657382e0133d31dd8e799e
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a deceptive message about an unauthorized transaction, designed to trick the user into clicking a link. The primary malicious link, https://ttraff.com/pify?keyword=report+unauthorized+transaction+dbs, is identified as a redirector to malicious infrastructure. The document also hosts a large number of other PDF files on Shopify domains, likely as part of a link farm to improve search engine ranking for malicious content.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=report+unauthorized+transaction+dbs
    • http://files.therecplace.com/uploads/1/3/1/4/131438167/49f5f8e53770.pdf
    • http://vivem.designshowcaseeast.com/uploads/1/3/1/4/131482933/4662a1d.pdf
    • http://nefig.schnepfsveggiedrivethru.com/uploads/1/3/0/8/130813784/rokobafazug_kuwatapes_mosexenep_jodowirapi.pdf
    • http://files.namiwalksaz.org/uploads/1/3/2/3/132302970/buxow.pdf
    • http://pagipasi.mariochacon.com/uploads/1/3/1/4/131454549/nuzitotif_nuwovufugilat_kifunexenoludub.pdf
    • https://cdn.shopify.com/s/files/1/0432/6585/1542/files/79925892185.pdf
    • https://cdn.shopify.com/s/files/1/0438/2290/7554/files/meviwisomijajewokasawuw.pdf
    • https://cdn.shopify.com/s/files/1/0434/6806/2872/files/54762972902.pdf
    • https://cdn.shopify.com/s/files/1/0427/4677/3660/files/46804151423.pdf
    • https://cdn.shopify.com/s/files/1/0432/7623/9014/files/fetiwe.pdf
    • https://cdn.shopify.com/s/files/1/0432/8862/5316/files/bavewafup.pdf
    • https://cdn.shopify.com/s/files/1/0428/8764/3303/files/examples_of_omnivores.pdf
    • https://cdn.shopify.com/s/files/1/0451/8101/0071/files/carreteras_federales_de_mexico_en.pdf
    • https://cdn.shopify.com/s/files/1/0433/3741/6869/files/suite_bergamasque_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0438/3493/3408/files/project_monitoring_and_evaluation.pdf
    • https://cdn.shopify.com/s/files/1/0431/7400/2837/files/57596518975.pdf
    • https://cdn.shopify.com/s/files/1/0433/9535/0684/files/sepas.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000833c.bin
d01749e0f246862e4a29d55c5ac8bdb7dbe51f3758ba75e5622911d0aa5c336b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x833C 5208 bytes
font_01_sfnt_off000094e0.bin
1ab67fb233555419a33c6fd75b54b490af6abb0d448098931404a87f35812b48		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94E0 2012 bytes
font_02_sfnt_off00009e40.bin
02936c91512140e8c44607e2ebd4d2d938d9692bd1b90e66f5ce75fb1aeb136f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E40 10752 bytes
font_03_sfnt_off0000c330.bin
001a0fa036fda03dc9e32cc97d3b9f64a1756f7d6a9e3e0a1f39e50274179ee7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC330 17212 bytes
font_04_sfnt_off0000dad4.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDAD4 4324 bytes

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