Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ce60cbbd5cab0dc…

MALICIOUS

PDF

67.5 KB Created: 2020-09-01 10:55:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ae60dce775999258f480b44ae8b14ab SHA-1: 7e64db83b29e0ef2b08ffca5f9f230a6cedf8453 SHA-256: 0ce60cbbd5cab0dcea515e0b6d1878306afcc05dd3cc58002d68a7a0a7223f8b
154 Risk Score

Malware Insights

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

The PDF contains a link to a redirector URL, which is a common tactic for phishing and malware distribution. The document body, though heavily obfuscated, contains text that appears to be a lure related to a song list, aiming to trick users into clicking the malicious link. The presence of numerous other PDF links suggests a link farm or SEO poisoning attempt to obscure the malicious destination.

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.com/wix?keyword=atif+aslam+new+song+2019+list
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0430/3765/5193/files/19303552742.pdf
    • https://cdn.shopify.com/s/files/1/0433/0595/9574/files/kuhn_tedder_parts_diagram.pdf
    • https://cdn.shopify.com/s/files/1/0440/5932/8662/files/debazegu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0751/6565/files/soresozalanijeluvipunapob.pdf
    • https://cdn.shopify.com/s/files/1/0431/1888/7073/files/53327548133.pdf
    • https://static.usrfiles.com/ugd/de3d83_0dfd6778066a4715b49b5e935e5a9aac.pdf
    • https://static.usrfiles.com/ugd/79cb75_3e1e7262a76d4957aa08604e6c9c7e88.pdf
    • https://static.usrfiles.com/ugd/b8c837_875461cfcc4b485691aa70b021992d2b.pdf
    • https://cdn.shopify.com/s/files/1/0434/0993/2439/files/safaxotedumafixed.pdf
    • https://cdn.shopify.com/s/files/1/0440/8085/7253/files/99292875250.pdf
    • https://cdn.shopify.com/s/files/1/0437/9279/3757/files/certificat_de_cession_de_vhicule.pdf
    • https://cdn.shopify.com/s/files/1/0433/1238/2116/files/fugabitavixovogi.pdf
    • https://static.usrfiles.com/ugd/b8c837_46fcd9b0a21a4915936cc0e767b0b75e.pdf
    • https://static.usrfiles.com/ugd/b48b60_dae02eac0ebf4daf9fd557e0766a073c.pdf
    • https://static.usrfiles.com/ugd/b8c837_a4ef48db61934a5e8163bc0ee5d50ce6.pdf
    • https://static.usrfiles.com/ugd/f63f29_a9ef833f42c6496fa6092e9207ba12ff.pdf
    • https://static.usrfiles.com/ugd/6846fe_1570e8695b1f4e509f280b7cf228c5c7.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009458.bin
fda74dfe0460092a4dbeb82eef6563042622a51d86bc4c75f85917d403b6251d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9458 5340 bytes
font_01_sfnt_off0000a684.bin
6f2b593bd1b28587b633bad69c176fda300def6b12ed9d109f76326d1a538514		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA684 16500 bytes
font_02_sfnt_off0000d900.bin
d9da14acc0b3ac358c713e969750d45c32025915e7b9ad90c8876705a8ab08f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD900 17360 bytes
font_03_sfnt_off0000f29b.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF29B 4324 bytes

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