Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ed3d238b8c86a0f…

MALICIOUS

PDF

89.1 KB Created: 2020-08-01 14:49:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: be42f245e72ddd8bbb780fa442cd6151 SHA-1: 5716805c9da053497c50376703b5d1db2615a524 SHA-256: 0ed3d238b8c86a0fd4c73604d9fbd1a5f35683e6c30b81a90c23a2a312c64580
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is `https://ttraff.cc/pify?keyword=bra+ket+notation`, which is likely used to redirect users to further malicious content. The document body itself is heavily obfuscated and contains the same redirector URL, suggesting a phishing or spamming attempt.

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.cc/pify?keyword=bra+ket+notation
    • http://files.cigarrenegade.com/uploads/1/3/0/7/130739533/e01eb43d.pdf
    • http://files.theradiantfamily.com/uploads/1/3/2/6/132683267/fd535d06.pdf
    • http://files.firstxvperformance.com/uploads/1/3/1/4/131454436/3970224.pdf
    • http://files.relst-uhag66.com/uploads/1/3/0/7/130739928/zigojogi_felepemer.pdf
    • http://files.mikaelpettersson.net/uploads/1/3/0/7/130739004/495fc750f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/7463/4403/files/58388208765.pdf
    • https://cdn.shopify.com/s/files/1/0431/6508/9949/files/32010575567.pdf
    • https://cdn.shopify.com/s/files/1/0430/7143/9001/files/zobapelex.pdf
    • https://cdn.shopify.com/s/files/1/0434/0629/5201/files/43004566729.pdf
    • https://cdn.shopify.com/s/files/1/0431/2226/2178/files/polebujuzutiwavewu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6372/8545/files/51400915161.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tikifulodu.pdf
    • https://cdn.shopify.com/s/files/1/0436/0998/1085/files/23985888526.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13977390730.pdf
    • https://cdn.shopify.com/s/files/1/0428/0057/8723/files/lesakesaxesidek.pdf
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/segogipewodexa.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/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc98.bin
3d4e55db948e1ad797387038bfb7d8c764bcf62cc7ce38e7fa918ba77d797713		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC98 4580 bytes
font_01_sfnt_off00010c3d.bin
b4e82775d425b928fdcd2afe02e462a8039abb9552ff00be810c62003db75a02		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C3D 15604 bytes
font_02_sfnt_off00013e5f.bin
ce1a477406f893a1093a8f18726e7d80393bd5818c5cc0469e48a33d509d0132		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13E5F 17020 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.