Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5093cdf72f8cdc5…

MALICIOUS

PDF

361.2 KB Created: 2022-05-26 21:33:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2022-07-15
MD5: 6fa9315df901d6152a1dafd4676cc030 SHA-1: a635153db584239487aa497d33bc4522a705c30d SHA-256: d5093cdf72f8cdc58c4e608b14c1a60f097ab5961a6612597699a27d157bff92
96 Risk Score

Malware Insights

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

The file is identified as a malicious PDF by ClamAV and an ML classifier. It contains an external URI pointing to a suspicious URL, 'https://sunuf.co.za/XSRYdR1H?utm_term=make+way+for+dyamonde+daniel+activities+pdf+free+online', which is likely used to deliver a second-stage payload. The PDF structure also exhibits duplicate object bodies, a common obfuscation technique in malicious documents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7167

Heuristics 4

  • 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://sunuf.co.za/XSRYdR1H?utm_term=make+way+for+dyamonde+daniel+activities+pdf+free+online
    • https://janokapaw.weebly.com/uploads/1/3/4/3/134329878/jakorivajuze.pdf
    • https://kerijene.weebly.com/uploads/1/3/4/3/134367262/7126291.pdf
    • https://sivasanetit.weebly.com/uploads/1/3/6/0/136095735/vumazelexer.pdf
    • https://teravotizu.weebly.com/uploads/1/3/4/3/134335056/5864316.pdf
    • https://vobotazesu.weebly.com/uploads/1/3/3/9/133986327/dda7b341cd.pdf
    • http://onlineauadms.com/ci/userfiles/files/jovorukadegexadula.pdf
    • https://vemenujobife.weebly.com/uploads/1/3/5/3/135399872/70dc5.pdf
    • http://playos.net/data/playos.net/uploadfiles/file/59045554244.pdf
    • https://robiwadanojiso.weebly.com/uploads/1/3/4/6/134644007/sovugaka.pdf
    • https://e-s-c.fr/lib/ckeditor/kcfinder/upload/files/raxejotozu.pdf
    • https://najuxobetejip.weebly.com/uploads/1/3/4/2/134265875/4224044.pdf
    • https://kazofinuso.weebly.com/uploads/1/3/4/3/134369681/budumuki.pdf
    • https://fejawizekojiwi.weebly.com/uploads/1/3/1/4/131438151/a71b57c.pdf
    • http://promastersecurity.com/sites/default/files/file/kalag.pdf
    • https://wixivowid.weebly.com/uploads/1/3/4/6/134689466/rutoputivekobozizef.pdf
    • https://zilojefigixup.weebly.com/uploads/1/4/1/4/141416389/junamixaferewula.pdf
    • http://svaz-podnikani.cz/files/file/dovavevivigoze.pdf
    • https://ridewavovelomu.weebly.com/uploads/1/3/4/6/134697160/bovaro_xelesuvigux_radagebezoden.pdf
    • https://kigazodiraju.weebly.com/uploads/1/3/4/6/134678535/miragimu_fukewetiwig.pdf
    • https://tijojobagiguli.weebly.com/uploads/1/4/1/5/141525659/1487298.pdf
    • https://najiridudubedip.weebly.com/uploads/1/3/7/4/137498874/4918131.pdf
    • https://enkaotomatikkapi.com/depo/sayfaresim/file/werimurobubaza.pdf
    • http://bestbuyfromindia.com/userfiles/file/giduzawufivatofamifurene.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_off0005349b.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5349B 16792 bytes
font_01_sfnt_off00054cad.bin
f2c2db538b98a96c702f837d871c127ab683aa33bc15d8268e292a1888fcf0a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54CAD 17600 bytes
font_02_sfnt_off00057b23.bin
664c4124721683d0cc9fa060be83d7a320e44748d0dd0f41ba3618d2c7652800		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57B23 11132 bytes

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