Malicious PDF — malware analysis report

Static analysis result for SHA-256 518219068ff7c13f…

MALICIOUS

PDF

75.0 KB Created: 2020-08-11 06:48:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 85beb698880f5f19013c82725bb9d92e SHA-1: 98e9f74d0dd7de2cdcf828197ca54dc666458379 SHA-256: 518219068ff7c13fa223118c9ec3c0c2116cb4480cc8378b18bed7df5aa8e1b2
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though partially corrupted, includes a URL that matches the one identified by the heuristic. This suggests the primary attack vector is to trick users into clicking malicious links disguised as document content, leading them to potentially harmful websites.

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=estudio+sobre+el+bautismo+del+espiritu+santo+pdf
    • http://files.mapleafdals.com/uploads/1/3/1/6/131606284/powusibewirini.pdf
    • http://files.timsguitar.net/uploads/1/3/1/3/131381464/dfce114854a4f50.pdf
    • http://nedol.prairiesun.com/uploads/1/3/0/7/130776433/nifeloj.pdf
    • http://files.wanderingwander.com/uploads/1/3/1/4/131438557/5761702.pdf
    • https://cdn.shopify.com/s/files/1/0431/6859/6123/files/zepawojox.pdf
    • https://cdn.shopify.com/s/files/1/0433/5930/5880/files/suzigudonikesirulexa.pdf
    • https://cdn.shopify.com/s/files/1/0433/7487/0689/files/55805094039.pdf
    • https://cdn.shopify.com/s/files/1/0428/2508/9191/files/tosazabagesewekupelava.pdf
    • https://cdn.shopify.com/s/files/1/0435/2117/9816/files/97686813413.pdf
    • https://cdn.shopify.com/s/files/1/0434/7723/7920/files/fusion_fichier_gratuit.pdf
    • https://cdn.shopify.com/s/files/1/0432/3514/7933/files/free_anaesthesia_books.pdf
    • https://cdn.shopify.com/s/files/1/0451/8638/4023/files/business_email_format.pdf
    • https://cdn.shopify.com/s/files/1/0435/2802/8312/files/authorized_king_james_version.pdf
    • https://cdn.shopify.com/s/files/1/0429/5586/6263/files/85883539905.pdf
    • https://cdn.shopify.com/s/files/1/0433/2670/1718/files/89942197125.pdf
    • https://cdn.shopify.com/s/files/1/0431/0571/4338/files/sojenawugak.pdf
    • https://cdn.shopify.com/s/files/1/0434/7281/4245/files/ninulawivixixenebelekuv.pdf
    • https://cdn.shopify.com/s/files/1/0434/8664/2336/files/gosafilabaletoxuvofug.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_off0000d7d4.bin
c4e7dab1e8834508fee57ef0dc433855fdfd76ee3d52b0c5f0292547da9ff31a
pdf-font-stream PDF embedded font (sfnt) at offset 0xD7D4 5168 bytes
font_01_sfnt_off0000e93f.bin
6c931f3355b980b24523dfcb92733cc1f6596abc092176344509627701fe00c4
pdf-font-stream PDF embedded font (sfnt) at offset 0xE93F 11428 bytes
font_02_sfnt_off00010e62.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0x10E62 4324 bytes