Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d1800dcda8db474…

MALICIOUS

PDF

39.5 KB Created: 2020-08-17 00:44:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b02a22409d493ec905a6ed6d5476a65b SHA-1: e87b1c709c26903b3096adbddafec9e39ebb2a0d SHA-256: 9d1800dcda8db4744afdfd5af9073bad4a1dfeefaac1f4779fce4775665c699e
128 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify-hosted PDFs. One critical heuristic identified a link to a known malicious redirector, ttraff.ru, which is likely used to obscure the final malicious destination. The document body also contains a call-to-action phrase, reinforcing the lure to download a file.

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.ru/pify?keyword=championship+manager+96%252F+97++full+game+free
    • http://files.adamkezele.com/uploads/1/3/0/7/130775704/8202780.pdf
    • http://gilip.madewithlovemonika.com/uploads/1/3/1/4/131411896/lafasodikinasik.pdf
    • https://cdn.shopify.com/s/files/1/0433/3928/4645/files/diduniwunisaduruvufijo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pafinekumukomotutawewokab.pdf
    • https://cdn.shopify.com/s/files/1/0430/6803/1143/files/1031375200.pdf
    • https://cdn.shopify.com/s/files/1/0429/5737/3589/files/avakin_life_mod_ios.pdf
    • https://cdn.shopify.com/s/files/1/0434/6596/5718/files/99811513154.pdf
    • https://cdn.shopify.com/s/files/1/0432/5530/0249/files/apple_tv_remote_app_apk.pdf
    • https://cdn.shopify.com/s/files/1/0432/0460/8155/files/40033849623.pdf
    • https://cdn.shopify.com/s/files/1/0433/6150/1334/files/tonarasovemupefo.pdf
    • https://cdn.shopify.com/s/files/1/0434/8697/0018/files/35813133530.pdf
    • https://cdn.shopify.com/s/files/1/0429/7087/4009/files/76975681815.pdf
    • https://cdn.shopify.com/s/files/1/0432/0722/9597/files/46455839110.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_off00005a24.bin
87bee6c902f65aab040028353f10979c050f58fdd5acbff8f0d4cb8735dffad5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A24 5648 bytes
font_01_sfnt_off00006d3d.bin
090e6fb517978770df6cc9326cf170d1ca566be8b1ee2c74e307803fab337660		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D3D 10436 bytes

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