Malicious PDF — malware analysis report

Static analysis result for SHA-256 acd3d9e78b8cc3d8…

MALICIOUS

PDF

37.6 KB Created: 2020-08-14 18:33:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0a7bb80206ba1871419d6a300bdb6860 SHA-1: de5b06d54b160416fe1da65cf49ab16ef86faaf0 SHA-256: acd3d9e78b8cc3d8085778e3dab3a3f94a12cde3b18a2d13a1826ed07bc9bef1
152 Risk Score

Malware Insights

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

This PDF document functions as a link farm, containing numerous embedded URLs. The primary malicious URL, https://ttraff.ru/pify?keyword=afterglow+xbox+one+controller+driver, is identified as a known malicious redirector. The document's structure and the high volume of links suggest an attempt to lure users to malicious websites through deceptive means, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=afterglow+xbox+one+controller+driver
    • http://jajurut.melanatedmama.com/uploads/1/3/0/8/130813055/5e36d04590b14.pdf
    • http://files.hannahsealy.com/uploads/1/3/0/7/130739525/7b4568.pdf
    • http://files.wavelengthassociation.com/uploads/1/3/2/6/132682282/5426607.pdf
    • http://nazexuj.bettycarlsonartist.com/uploads/1/3/0/8/130814328/e15121225e942.pdf
    • http://files.centre-ipse.org/uploads/1/3/1/4/131438616/xutojateb.pdf
    • https://cdn.shopify.com/s/files/1/0431/9058/3464/files/muwogibevebub.pdf
    • https://cdn.shopify.com/s/files/1/0433/5799/5160/files/east_cape_fishing_report.pdf
    • https://cdn.shopify.com/s/files/1/0433/6828/4319/files/nice_guidelines_bronchiolitis.pdf
    • https://cdn.shopify.com/s/files/1/0439/2553/6936/files/89003231616.pdf
    • https://cdn.shopify.com/s/files/1/0430/4207/8877/files/zogumukixa.pdf
    • https://cdn.shopify.com/s/files/1/0434/2854/4668/files/89992398672.pdf
    • https://cdn.shopify.com/s/files/1/0429/9423/7589/files/62310420130.pdf
    • https://cdn.shopify.com/s/files/1/0428/4992/7327/files/emerald_tablets_of_thoth_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/0998/2107/files/jurelolufoxobi.pdf
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/lofulezuponoforidomi.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_off00005540.bin
fa79896a0ff77a84240724ec1e6ea40694aeb3a89eb71edfbe3695ceb870bcc0
pdf-font-stream PDF embedded font (sfnt) at offset 0x5540 5152 bytes
font_01_sfnt_off000066eb.bin
8f9fe95007f459aeb4ba878759de1462b708cc609e88472efd77a37b6dfdbda0
pdf-font-stream PDF embedded font (sfnt) at offset 0x66EB 10240 bytes