Malicious PDF — malware analysis report

Static analysis result for SHA-256 050b415d4facd1a3…

MALICIOUS

PDF

59.7 KB Created: 2020-08-17 05:51:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cfe9e4c72f20e137dfc1086b12be235b SHA-1: d5d79550f7e22ffa467cd3f6273aa252273740c6 SHA-256: 050b415d4facd1a31b8e64d06adcd07925d4454d01e774f900ce91b08749d353
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=origin+of+bantu+migration+pdf'. The document body also contains this URL, suggesting an attempt to trick users into visiting a malicious site, likely for phishing or malware distribution. The ML classifier strongly supports the malicious nature of this PDF.

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=origin+of+bantu+migration+pdf
    • http://files.moruyaanglican.org/uploads/1/3/0/7/130776644/bobulime_zivuke.pdf
    • http://files.maeroseevents.com/uploads/1/3/0/8/130874566/cf5452.pdf
    • http://files.adrianhawaleshka.com/uploads/1/3/1/4/131437823/pegeneb-wamasil.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0432/4157/0466/files/comment_assembler_des_avec_foxit_reader.pdf
    • https://cdn.shopify.com/s/files/1/0428/1607/7991/files/gakojuniledosuxolobojafim.pdf
    • https://cdn.shopify.com/s/files/1/0430/7202/8823/files/sonedibujovakoveruzamiwi.pdf
    • https://cdn.shopify.com/s/files/1/0429/3269/9295/files/karmakshetra_bengali_newspaper.pdf
    • https://cdn.shopify.com/s/files/1/0434/0652/4583/files/braille_decoder_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0440/0496/6565/files/6540663633.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/11067845032.pdf
    • https://cdn.shopify.com/s/files/1/0437/1120/1435/files/vijaxineweraxogot.pdf
    • https://cdn.shopify.com/s/files/1/0449/5153/5771/files/38685230672.pdf
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/65376355878.pdf
    • https://cdn.shopify.com/s/files/1/0434/5469/3541/files/muvipibose.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009fe4.bin
e44d587e1fd1ce3e417f5333483b5908cdaf7c0c4d566ebdfad004e71037dd54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9FE4 5084 bytes
font_01_sfnt_off0000b104.bin
1694743b3da0cfcfb5a86a0fc4acdcda032d577b6938313a2942b94e6f02653a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB104 10104 bytes
font_02_sfnt_off0000d3a1.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD3A1 4324 bytes

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