Malicious PDF — malware analysis report

Static analysis result for SHA-256 80d6a6dd0809a014…

MALICIOUS

PDF

95.2 KB Created: 2022-06-05 10:50:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2022-07-15
MD5: cd0aeffb5c202cfada67c5595f9aa980 SHA-1: 4fd4fc5636a0970141a7a8251ebe0925c2af7d5a SHA-256: 80d6a6dd0809a014b06656d2a0db58f4ff8687da2a69bfc3d3f1f453c62e1aff
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF contains numerous external links, with one prominent URL suggesting a lure related to 'angela duckworth grit pdf windows 7 full game'. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution. The presence of a link farm heuristic further supports the malicious nature of the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9927

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 https://podar.co.za/YmrXLWy8?keyword=angela%20duckworth%20grit%20pdf%20%20windows%207%20full%20game
    • https://karesaxu.weebly.com/uploads/1/3/5/3/135392924/8859971.pdf
    • http://lindendirect.com/ckfinder/userfiles/files/71921305244.pdf
    • https://lutejegat.weebly.com/uploads/1/4/1/3/141326654/1350216.pdf
    • http://geojeoceanhotel.com/userfiles/file/20220209172352.pdf
    • https://sekojufakov.weebly.com/uploads/1/3/0/7/130776719/muxozij-tafawus-delulisolix.pdf
    • https://pibajavutu.weebly.com/uploads/1/4/1/3/141320776/036cc90a6.pdf
    • https://gekesixufomipi.weebly.com/uploads/1/3/4/3/134318537/luxekado_zidora_kewebubujopaf.pdf
    • http://acecaalcoy.com/userfiles/file/29316138676.pdf
    • https://wiwovadale.weebly.com/uploads/1/3/5/3/135322143/56cfad6eff.pdf
    • http://medcentervrn.ru/userfiles/files/zapilapow.pdf
    • https://silukirajewulo.weebly.com/uploads/1/3/2/6/132695932/wuviniweguwowebitet.pdf
    • https://tradingphrases.net/userfiles/files/44073495237.pdf
    • https://xalidowugeduvek.weebly.com/uploads/1/3/7/5/137514787/f2c571e.pdf
    • https://macintosh-szerviz-javitas.nuttydog.hu/ckfinder/userfiles/files/76558380581.pdf
    • https://nobarolibefo.weebly.com/uploads/1/3/1/4/131407117/xinugizawufol-nagogeretom-nuvabusujulapab-makuzazuboratuv.pdf
    • https://wemezixogasowed.weebly.com/uploads/1/3/1/6/131637562/1487479.pdf
    • https://pufukowog.weebly.com/uploads/1/3/4/5/134583281/7d9f54f4cbee38.pdf
    • https://mibudixu.weebly.com/uploads/1/3/4/4/134490534/071c9ab929fa607.pdf
    • https://pekosorevonoxa.weebly.com/uploads/1/3/0/7/130739373/jizoganugaxazuwev.pdf
    • http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/162627a570c6dd---49377267827.pdf
    • http://panova-art.com/files/file/bezatozusojerinap.pdf
    • https://ienter.bg/files/wudujafojelakexoxu.pdf
    • https://adporly.emailingmanager.com/uploads/editor/file/xogumimunozug.pdf
    • https://creteotels.gr/FCKeditor/userimages/file/56915745323.pdf
    • http://holdemigny.fr/ckfinder/userfiles/files/21173325503.pdf
    • http://hotel-ambassador-nice.com/upload/files/wonekazugovufa.pdf
    • https://gotitodurafa.weebly.com/uploads/1/3/4/3/134351762/5002549.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000106d2.bin
13061dc1555b11388c2f69b4185f93b2bf6139da088acacb2fd2e0e900f9d52c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x106D2 11376 bytes
font_01_sfnt_off00012164.bin
667f073e0e6161ec49f6486f82c740d39318d1769f4160d17439bc1ef00b564f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12164 19692 bytes
font_02_sfnt_off00015567.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15567 16792 bytes

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