Malicious PDF — malware analysis report

Static analysis result for SHA-256 f89027aa98bd3aa2…

MALICIOUS

PDF

40.0 KB Created: 2020-08-02 23:12:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93f61e104aa9aa862da5e8dbd278ee74 SHA-1: 007f1e2697ce9ceceba3911a47424f305a52f394 SHA-256: f89027aa98bd3aa219d0482fa2723f115e9202fba6146ac5c69ea9f5f3c646c1
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=armstrong+furnace+parts'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs hosted on domains like cdn.shopify.com. The document body, though heavily obfuscated, contains the same malicious URL and benign-looking PDF links, suggesting a lure to a malicious site.

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.ru/pify?keyword=armstrong+furnace+parts
    • http://files.mindthegapllc.com/uploads/1/3/2/3/132303163/soxawubanabixel_rewalurow_bupudozuv_sogetewawoxa.pdf
    • http://files.hopkinshometowncelebrations.com/uploads/1/3/2/6/132682303/3187937.pdf
    • http://files.coastalk9c.com/uploads/1/3/2/6/132681207/kakebu_kugexalelilo_wolitodafadoxok_minokexogi.pdf
    • http://files.svacademy.org/uploads/1/3/2/8/132815183/fc17a2.pdf
    • http://files.tastefulgatherings.com/uploads/1/3/0/7/130775747/napup.pdf
    • https://cdn.shopify.com/s/files/1/0433/8286/6083/files/vogifazisofejosina.pdf
    • https://cdn.shopify.com/s/files/1/0440/4409/1557/files/gukawepunadexixadigapeze.pdf
    • https://cdn.shopify.com/s/files/1/0433/9059/9319/files/75788001161.pdf
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/negemabetezexelole.pdf
    • https://cdn.shopify.com/s/files/1/0431/4942/6839/files/49540977369.pdf
    • https://cdn.shopify.com/s/files/1/0435/5584/8355/files/96800100407.pdf
    • https://cdn.shopify.com/s/files/1/0427/7754/2823/files/xurazolagipamofodofumat.pdf
    • https://cdn.shopify.com/s/files/1/0430/7881/1810/files/jazasugaraxodalupidenugab.pdf
    • https://cdn.shopify.com/s/files/1/0431/6453/2900/files/niraguxadaguwatuk.pdf
    • https://cdn.shopify.com/s/files/1/0434/4234/0007/files/96312539280.pdf
    • https://cdn.shopify.com/s/files/1/0430/9227/9460/files/57239023420.pdf
    • https://cdn.shopify.com/s/files/1/0437/1097/2053/files/vosiro.pdf
    • https://cdn.shopify.com/s/files/1/0437/6123/8168/files/33239626577.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_off0000502b.bin
d908187d0b00c6564634e23ce5f7ab87ac93a161ffd4cf355dc05d7ea2a12ff2
pdf-font-stream PDF embedded font (sfnt) at offset 0x502B 5128 bytes
font_01_sfnt_off0000617d.bin
6240b297a72928c464dcde69a13d6139d712653773a33e67351c80b4fba0d836
pdf-font-stream PDF embedded font (sfnt) at offset 0x617D 10348 bytes
font_02_sfnt_off000084e1.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x84E1 4324 bytes