Malicious PDF — malware analysis report

Static analysis result for SHA-256 06d1c0d47a9e1590…

MALICIOUS

PDF

46.9 KB Created: 2020-08-29 03:12:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40a0f927a26ecf70de09e24718dfef02 SHA-1: e8fbc00658d27511b18d882dd8d71e0f3b48cfb9 SHA-256: 06d1c0d47a9e159093aaa871b34439673eff9ddf538a49665a03ec6289a12297
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL https://ttraff.com/wix?keyword=jo+khabo+khayalo+me+mp3, which is likely intended to redirect the user to a malicious site. The presence of numerous embedded links, many pointing to external PDFs, suggests a link farm or redirection scheme designed to obscure the final 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=jo+khabo+khayalo+me+mp3
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • https://static.usrfiles.com/ugd/b8c837_52cc22bbb8c04c398fb28627c88c81bb.pdf
    • https://static.usrfiles.com/ugd/b8c837_c9b2ef56ed0646378b0e8c36498e3b36.pdf
    • https://static.usrfiles.com/ugd/b8c837_9a0d2140dc5c485c8c0658163308a9da.pdf
    • https://static.usrfiles.com/ugd/b8c837_15e92f99d0184713afe8be59e0e5d453.pdf
    • https://cdn.shopify.com/s/files/1/0433/3332/0872/files/barlow_font_family.pdf
    • https://cdn.shopify.com/s/files/1/0429/9672/7961/files/iso-_to-_usb.pdf
    • https://static.usrfiles.com/ugd/b8c837_161e9df514844edc94130f2413941bc1.pdf
    • https://static.usrfiles.com/ugd/b8c837_b97a0e3b72dc47ab8d3b8cce4610559d.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/88490435411.pdf
    • https://cdn.shopify.com/s/files/1/0431/4290/6007/files/16639904373.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_off00004fdb.bin
996ed61edeb92df4f8508a66595a0489fa91e9c587fc20b437a04c0ef65e3a34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FDB 5244 bytes
font_01_sfnt_off0000619f.bin
c0063b3acca1597cfa5fe09cbf15e73e1ce059c91ef0a87d365afc7fecd89e34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x619F 13604 bytes
font_02_sfnt_off00008cb4.bin
65da088d18542741a275e55c8752c77f4e1e455a0972dfa7c5f4e907aef028b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8CB4 16416 bytes
font_03_sfnt_off0000a2d2.bin
00fd426cae7a7c977ae5277bdda90a5cd12b325126a083e08ce68086699a91f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA2D2 2452 bytes

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