Malicious PDF — malware analysis report

Static analysis result for SHA-256 f80326bc02d42fb6…

MALICIOUS

PDF

49.5 KB Created: 2020-03-06 17:06:16 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: f5729ca0b94aa7debfd06c8ab6a02a3a SHA-1: 0c3d482ec11bfe3996b095f1069cea15a396c51c SHA-256: f80326bc02d42fb6f2fcc88f5c40a3979ff8d3479b8c23f19d8c138180ebe963
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1566.002 Spearphishing Link

The PDF contains a large number of embedded external links, a technique often used for SEO spam or to direct users to malicious sites. The ML classifier strongly flagged this PDF as malicious. The document body contains text related to game cheats, which may be a lure to disguise the malicious intent of the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://74-123-76-25.mgwnet.com/uploads/1/3/0/5/130543653/130543653.html#gta+vice+city+250+health+cheat+pc
    • http://mx.benkirkefamily.com/uploads/1/3/0/8/130873986/1675455.pdf
    • http://nadzorybudowlane-arles.pl/uploads/1/3/0/6/130639462/vibemoludasap.pdf
    • http://www.dandeeindustries1.com/uploads/1/3/0/6/130639800/4a3600269760.pdf
    • http://www.essickforsheriff2018.com/uploads/1/3/0/5/130590666/benixosubatezasajepi.pdf
    • http://menagainstcancer.net/uploads/1/3/0/4/130476035/3800491.pdf
    • http://www.maracramerlpc.com/uploads/1/3/0/2/130288458/subusuwa_lisevaf_pexitexefulazuj.pdf
    • http://www.timesterly.com/uploads/1/3/1/0/131071298/kiguxogeladegekukema.pdf
    • http://www.annekatrinklein.com/uploads/1/3/0/6/130605111/fasobeba.pdf
    • http://ceciglobalbrands.net/uploads/1/3/0/5/130588864/91cea13.pdf
    • http://www.chrisarcherphotography.com/uploads/1/3/0/7/130738531/nupojijojuja.pdf
    • http://lampeelife.com/uploads/1/3/0/3/130379150/jiborujulage.pdf
    • http://coinspacespain.com/uploads/1/3/0/7/130739383/gimulozutofenadoxipe.pdf
    • http://www.davepaco.com/uploads/1/3/0/5/130542894/wedurum.pdf
    • http://motivationalresearch.org/uploads/1/3/0/2/130287269/mikazapaz.pdf
    • http://mannhandled.com/uploads/1/3/0/7/130738921/lukuraxiwojutov.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000901a.bin
c7ecb13a0b49a45402eec2580ffa01790ede4ad48128030b51e6ce84b7c52cd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x901A 7780 bytes
font_01_sfnt_off0000ae75.bin
17f7cbf013319cf9a72375721874b5a1a1e0c7aba53a21a6c31dc87cb58bdbff		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAE75 2900 bytes

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