Malicious PDF — malware analysis report

Static analysis result for SHA-256 2206b783b2870fb3…

MALICIOUS

PDF

53.4 KB Created: 2020-08-28 14:13:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1e3a8d85a583339fae012b9eddb4c426 SHA-1: b9d5b2e843ea41101b631b1819ccba56afa2dffc SHA-256: 2206b783b2870fb33ad0b2068acf4853b361983c3c53b68557de63d94d365967
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a significant number of embedded links, with one identified as a known malicious redirector. The ML classifier also flagged this PDF with high confidence. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content. The document body contains obfuscated text and references to 'The infernal devices', which may be a lure.

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=the+infernal+devices
    • http://zomudopu.abteendrivingacademy.com/uploads/1/3/1/4/131482853/02498092b.pdf
    • http://files.lodgefarmleisure.com/uploads/1/3/0/7/130739919/dutiduni.pdf
    • http://files.christchurchbabylon.org/uploads/1/3/0/7/130776069/novisoxixok.pdf
    • http://files.support4sdrwales.org.uk/uploads/1/3/1/4/131409526/relafe.pdf
    • http://zibujen.lakeodessaarts.com/uploads/1/3/1/4/131454215/tosivepekivo.pdf
    • https://cdn.shopify.com/s/files/1/0461/6500/0344/files/formation_windev_mobile.pdf
    • https://cdn.shopify.com/s/files/1/0438/2556/1757/files/larolewidikoxevafutivegix.pdf
    • https://cdn.shopify.com/s/files/1/0432/1456/9632/files/kowizowojodoxizitubaxana.pdf
    • https://cdn.shopify.com/s/files/1/0462/1854/3258/files/devexpress_report_designer_add_table.pdf
    • https://cdn.shopify.com/s/files/1/0438/1288/0541/files/lelibumobe.pdf
    • https://cdn.shopify.com/s/files/1/0433/8984/5671/files/here_i_am_to_worship_guitar_chords.pdf
    • https://cdn.shopify.com/s/files/1/0431/7066/0508/files/46569627069.pdf
    • https://cdn.shopify.com/s/files/1/0429/9587/5989/files/jibozoxok.pdf
    • https://cdn.shopify.com/s/files/1/0432/2318/7614/files/newom.pdf
    • https://cdn.shopify.com/s/files/1/0429/7677/2250/files/tukoviwezusepiluzop.pdf
    • https://cdn.shopify.com/s/files/1/0430/4610/9345/files/38597919685.pdf
    • https://cdn.shopify.com/s/files/1/0429/9050/2042/files/transformers_rescue_bots_season_4_episode_26.pdf
    • https://cdn.shopify.com/s/files/1/0445/6900/2143/files/ky_lake_fishing_reports.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000881d.bin
2f02186847cf88efbf9a2b71efd5a6affbb173e180e3c8fe8ffc2129b453374d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x881D 4716 bytes
font_01_sfnt_off00009806.bin
c1311a3d372fd711e04e1d80cbb76ad77484b1d895620e6091458bd8fa7d190d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9806 10076 bytes
font_02_sfnt_off0000ba7a.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBA7A 4324 bytes

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