Malicious PDF — malware analysis report

Static analysis result for SHA-256 800cbbda4fe82740…

MALICIOUS

PDF

59.6 KB Created: 2020-08-31 17:45:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dd0867c73e384cb3996c659724d99122 SHA-1: 3e60fa33c812fb0bb2b1df4c85aa24a103b8ab1c SHA-256: 800cbbda4fe82740acf896a7b3ef220a112fbd6feba1f2df04aa89776520f3d6
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Bhagavad gita in telugu quotes pdf' and the authoring application 'wkhtmltopdf', suggesting a lure for SEO poisoning or phishing. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to further malicious content.

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.me/wix?keyword=bhagavad+gita+in+telugu+quotes+pdf
    • https://cdn.shopify.com/s/files/1/0434/7346/9597/files/zukebotuziwoxafawi.pdf
    • https://cdn.shopify.com/s/files/1/0437/2021/2645/files/wuxejamakikezilog.pdf
    • https://cdn.shopify.com/s/files/1/0432/7935/1968/files/at_t_tv_guide_boomerang.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/buxidumex.pdf
    • https://cdn.shopify.com/s/files/1/0443/0381/0716/files/ashrae_handbook_of_fundamentals_free_download.pdf
    • https://static.usrfiles.com/ugd/fef806_5549afbca6994ac2bee535c4cf1aab3b.pdf
    • https://static.usrfiles.com/ugd/b0cd75_5d34b899f5754486b2a7e17babb62936.pdf
    • https://static.usrfiles.com/ugd/91e123_6c313ded06ad4a689172ec34da24f3aa.pdf
    • https://static.usrfiles.com/ugd/3649d2_ed754732fbe041678001f01dc167facc.pdf
    • https://static.usrfiles.com/ugd/b8c837_0ecead672ada402a9e1b088dc14511e0.pdf
    • https://static.usrfiles.com/ugd/f80014_c37959af116d45b083c53769b36b94cb.pdf
    • https://static.usrfiles.com/ugd/b8c837_bd03473404844518865e89524af5adb7.pdf
    • https://static.usrfiles.com/ugd/99965f_85d3f098a24b47bfb281a457653a0173.pdf
    • https://cdn.shopify.com/s/files/1/0430/1045/7753/files/80227392169.pdf
    • https://cdn.shopify.com/s/files/1/0451/2504/2329/files/oh_baby_girl_song_starmusiq.pdf
    • https://cdn.shopify.com/s/files/1/0465/1712/5270/files/dplyr_data_wrangling_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0427/6341/9814/files/logisoz.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/

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000831f.bin
f23fa7b09543f22d26f896ec7d90df36577fd97437cb19eebba902cea33adef1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x831F 5324 bytes
font_01_sfnt_off0000953c.bin
3693cf76947334bae1654bc92d6a3003edbd9d0c4fc06d685bad491f7cd8a579		 pdf-font-stream PDF embedded font (sfnt) at offset 0x953C 10008 bytes
font_02_sfnt_off0000b088.bin
08546b0afabdb073ddf7c92cae93ef1b86f35527117641751b8a262cc2be3b19		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB088 10348 bytes
font_03_sfnt_off0000d225.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD225 4324 bytes

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