Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee22556cd1f62c9a…

MALICIOUS

PDF

40.4 KB Created: 2020-08-15 20:47:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aaf30c68dc961d047ce38f1bd37ffcf0 SHA-1: ca2835155e6723477d1949936a4d811044cd4d95 SHA-256: ee22556cd1f62c9adaa4f3fece176cfe0fd65c2879774a16aaece17a5a7908f1
150 Risk Score

Malware Insights

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

The PDF document contains a link farm, with one prominent link directing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a mobile game guide and the malicious URL. This suggests a social engineering attack aiming to trick users into clicking the malicious link, likely leading to further malware download or exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=mabinogi+fantasy+life+mobile+guide
    • http://files.goodpointmedicine.com/uploads/1/3/0/7/130739533/fowopalen_liwaboda.pdf
    • http://files.piltzfamily.waggamatters.com/uploads/1/3/0/7/130776852/zilubu.pdf
    • http://kajaf.ms-j.org/uploads/1/3/0/7/130775164/1752247.pdf
    • http://wakifiwi.winningtouchequineservices.com/uploads/1/3/0/7/130776611/5776645.pdf
    • https://cdn.shopify.com/s/files/1/0439/8972/9438/files/photoshop_cs5_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/1679/8886/files/auto_iso_manual_mode.pdf
    • https://cdn.shopify.com/s/files/1/0439/1452/6888/files/human_anatomy_for_artists_goldfinger.pdf
    • https://cdn.shopify.com/s/files/1/0436/0113/3731/files/83984141929.pdf
    • https://cdn.shopify.com/s/files/1/0433/4374/1083/files/88813667360.pdf
    • https://cdn.shopify.com/s/files/1/0449/8276/3679/files/estado_de_derecho_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0429/8581/6218/files/54733610045.pdf
    • https://cdn.shopify.com/s/files/1/0429/0933/5715/files/33122250650.pdf
    • https://cdn.shopify.com/s/files/1/0451/0813/4053/files/biological_anthropology_concepts_and_connections.pdf
    • https://cdn.shopify.com/s/files/1/0433/6009/2309/files/78729004117.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_off0000602f.bin
23d0ecd5b7be3c4a1e9dba3a2bc9cea131246f9edf13fa2761a220bfa000a39d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x602F 5376 bytes
font_01_sfnt_off00007276.bin
7b5707e6250e4268bb4dbb3190068eb8e697a7446a042dcfffbfd59f1c877f1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7276 10280 bytes

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