Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8719cae229d1767…

MALICIOUS

PDF

44.2 KB Created: 2020-08-08 00:43:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4539d93dbfdec694522da6fd46a19528 SHA-1: 392e9baaab034d79103c4679892fafc7407b2eaf SHA-256: e8719cae229d17674f70f4624577644626bd7fbcfcfd903be77c7aaff039c89c
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though partially corrupted, contains text related to 'Apprendre langue française pdf' and includes the primary malicious URL. This suggests a phishing or social engineering attack aiming to redirect users to harmful content.

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=apprendre+langue+fran%25C3%25A7aise+pdf
    • http://files.jwhite.ca/uploads/1/3/1/4/131453950/koxijok.pdf
    • http://files.classicaldigitalphotography.co.uk/uploads/1/3/1/3/131378771/milizax_bowidotewofujos_mufebevopuba_judifakupifir.pdf
    • http://files.cindysearles.com/uploads/1/3/0/7/130739076/b0e36db.pdf
    • https://cdn.shopify.com/s/files/1/0431/0699/2289/files/17030080781.pdf
    • https://cdn.shopify.com/s/files/1/0433/7372/3800/files/jujudurijagepogokivamoj.pdf
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/bafutidemarexej.pdf
    • https://cdn.shopify.com/s/files/1/0431/4988/5606/files/concatenate_string_in_c.pdf
    • https://cdn.shopify.com/s/files/1/0433/0923/6374/files/tuvad.pdf
    • https://cdn.shopify.com/s/files/1/0437/9744/6816/files/sawavosorupofadesolovagum.pdf
    • https://cdn.shopify.com/s/files/1/0427/4988/6620/files/8924475500.pdf
    • https://cdn.shopify.com/s/files/1/0435/8438/9275/files/skyrim_grey_face_bug.pdf
    • https://cdn.shopify.com/s/files/1/0429/5763/5735/files/16726191151.pdf
    • https://cdn.shopify.com/s/files/1/0437/8905/8206/files/xezoxesodejisagabez.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_off00005cad.bin
64ae8b726d3bbb8de1ac736b8ace96d5bdcc5ca007f8b124bc68ee6fb744a49b
pdf-font-stream PDF embedded font (sfnt) at offset 0x5CAD 5072 bytes
font_01_sfnt_off00006dee.bin
5a463bd428a682483df27aad7047accc997978f21c420fd2f52384cbe8032f52
pdf-font-stream PDF embedded font (sfnt) at offset 0x6DEE 11864 bytes
font_02_sfnt_off000093cf.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x93CF 4324 bytes