Malicious PDF — malware analysis report

Static analysis result for SHA-256 625ed677f936de8e…

MALICIOUS

PDF

42.0 KB Created: 2020-08-07 09:05:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d0d7af95e3d99efe22730b7fb3fc60c4 SHA-1: e775cacbc4add7070d89095f17e31bd73752e3d4 SHA-256: 625ed677f936de8e9709eb1ad32a0834111101d4bf4cbb83ac278cc8cb29ba72
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links, many of which point to external resources, including a known malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=b%25C3%25A9n%25C3%25A9fices+non+commerciaux+pdf, which is likely used to redirect users to further malicious content. The document's structure and the presence of numerous links suggest an attempt to create a link farm or to distribute malware through deceptive means.

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=b%25C3%25A9n%25C3%25A9fices+non+commerciaux+pdf
    • http://files.cpcaannualconference.com/uploads/1/3/2/6/132682171/9775224.pdf
    • http://files.wanteddoa.com/uploads/1/3/0/8/130813511/7852199.pdf
    • http://files.laurainthelibrary.com/uploads/1/3/0/8/130873947/nexafewunenexiwatevu.pdf
    • http://malok.jamie-crockett.com/uploads/1/3/2/7/132740873/3122080.pdf
    • http://files.afmsupplements.com/uploads/1/3/2/3/132302815/972851.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0438/0291/9074/files/58864560620.pdf
    • https://cdn.shopify.com/s/files/1/0428/3600/0931/files/miwozuwokowupeparinopa.pdf
    • https://cdn.shopify.com/s/files/1/0431/9097/6673/files/durogigemutiwamixaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/9659/5870/files/lawokinetexobov.pdf
    • https://cdn.shopify.com/s/files/1/0444/3347/3702/files/rupaul_drag_race_season_6_torrent.pdf
    • https://cdn.shopify.com/s/files/1/0432/3649/1431/files/pratiyogita_darpan.pdf
    • https://cdn.shopify.com/s/files/1/0435/6312/2843/files/rigulavelofifun.pdf
    • https://cdn.shopify.com/s/files/1/0434/7386/2808/files/1105589008.pdf
    • https://cdn.shopify.com/s/files/1/0429/8155/6375/files/xodebemegilobef.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/57189589950.pdf
    • https://cdn.shopify.com/s/files/1/0430/5122/1146/files/wexuvafalupovev.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061e7.bin
8435fc6b7c489c58712f6eb4ec934b4307fd8fba90957696f5c0857509a1273a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61E7 5528 bytes
font_01_sfnt_off00007461.bin
f318e957b280a7777d12c64f17bd164d63fc36a69e774348f5d4f6d3363474a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7461 11620 bytes

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