Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8382461774f9c29…

MALICIOUS

PDF

41.0 KB Created: 2020-08-19 15:39:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 495f4b3d110357d127f5076da7b5f111 SHA-1: 34b8f5e436d00897071466f0861bb339029581f7 SHA-256: d8382461774f9c29eb6c851613b0e540b515669421a222b45a6b43bf240406ee
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 text related to 'Huawei p9 lite adb driver' and the malicious URL, suggesting a lure to download a driver. The presence of numerous other PDF links, many hosted on Shopify, indicates a potential link farm or distribution network. The primary malicious URL is 'https://ttraff.com/pify?keyword=huawei+p9+lite+adb+driver'.

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=huawei+p9+lite+adb+driver
    • http://katulonof.fertilityafter40.com/uploads/1/3/0/8/130814168/e8ed7c9d44fd.pdf
    • https://cdn.shopify.com/s/files/1/0452/2462/4288/files/72043988205.pdf
    • https://cdn.shopify.com/s/files/1/0433/3027/3448/files/1972391279.pdf
    • https://cdn.shopify.com/s/files/1/0429/4351/2732/files/jolafefaf.pdf
    • https://cdn.shopify.com/s/files/1/0431/0722/1661/files/11th_english_synonyms_and_antonyms.pdf
    • https://cdn.shopify.com/s/files/1/0429/5039/4019/files/wanuvuvineke.pdf
    • https://cdn.shopify.com/s/files/1/0430/4509/3530/files/subilemivinisede.pdf
    • https://cdn.shopify.com/s/files/1/0428/5412/1635/files/nebokumujexobenafoxojeda.pdf
    • https://cdn.shopify.com/s/files/1/0434/3388/5846/files/.pdf
    • https://cdn.shopify.com/s/files/1/0436/2256/4000/files/meses_del_ao_en_ingles_ejercicios.pdf
    • https://cdn.shopify.com/s/files/1/0435/2606/2239/files/27494348648.pdf
    • https://cdn.shopify.com/s/files/1/0438/7156/8040/files/lisekifatonunivonegupad.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_off00005f74.bin
e6cbb1b662d8af23968b7dbd1369d60e766c5476c32a51d1011d10395aa83245		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F74 5184 bytes
font_01_sfnt_off0000712d.bin
1e2727b33abbf1222b7b70af87e3cf0299abab508a18ce561bde3afab57179dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x712D 11972 bytes

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