Malicious PDF — malware analysis report

Static analysis result for SHA-256 16e74101968276f3…

MALICIOUS

PDF

83.4 KB Created: 2021-02-12 00:01:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 61d097afe112ee1216e2bede992461e6 SHA-1: 2d217359b3a29fc76f8da7d987ff63ea728f624f SHA-256: 16e74101968276f3480675d8cf490268f965efce85cef174b18ac92525ec1f8c
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that directs users to a website seemingly offering a game download. This is a common lure for phishing attacks or to distribute malware. The ML classifier and ClamAV detection strongly indicate malicious intent, and the embedded URL is the primary indicator of the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wix?keyword=king+of+avalon+beta+apk+download
    • https://puzejiwitamino.weebly.com/uploads/1/3/1/4/131453698/2526932.pdf
    • http://technodom11.com/28582399303db8e.pdf
    • https://cdn-cms.f-static.net/uploads/4445119/normal_6015adf548ebf.pdf
    • http://wirelessinfo.ru/15958287259rxkc.pdf
    • https://nurojitare.weebly.com/uploads/1/3/2/6/132682966/8482169.pdf
    • https://static.s123-cdn-static.com/uploads/4365628/normal_600523b9cb79a.pdf
    • http://polnews.xyz/sifajupamififesuluxapakam2a.pdf
    • https://static.s123-cdn-static.com/uploads/4375908/normal_5fe119c190ad0.pdf
    • https://cdn-cms.f-static.net/uploads/4464080/normal_600ab6500d179.pdf
    • https://gukikaxut.weebly.com/uploads/1/3/0/7/130775725/tawagipubafowike.pdf
    • https://sirukume.weebly.com/uploads/1/3/0/8/130814715/torikeferatasuvod.pdf
    • https://static.s123-cdn-static.com/uploads/4484805/normal_5fdee680eadb9.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://nowivopikuzud.epizy.com/llandudno_surf_report_webcam.pdf
    • http://noxagipuputop.rf.gd/12674599920.pdf
    • https://s3.amazonaws.com/kuxuxemu/jikerabonugisa.pdf
    • http://pojitak.epizy.com/bbc_iplayer_app_for_chrome.pdf
    • http://bakotege.rf.gd/calcaneovalgus_deformity_icd_10.pdf
    • https://s3.amazonaws.com/vexeliku/free_bridal_bingo_template.pdf
    • http://banobozibijur.epizy.com/spiderman_3_ppsspp_android_cso.pdf
    • https://s3.amazonaws.com/jonora/lixex.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://scripts.sil.org/OFL
    • 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_off0000f31f.bin
9b3f2472a48e6483dd7abd63708970b797f71daae5cc5e15d1c0c511d68b0380
pdf-font-stream PDF embedded font (sfnt) at offset 0xF31F 5260 bytes
font_01_sfnt_off0001052f.bin
04a2bbc149cc859e935e6edb7f4c9c06b65afabefb7c7fbdb42d6651a3ffb190
pdf-font-stream PDF embedded font (sfnt) at offset 0x1052F 10704 bytes
font_02_sfnt_off000129f9.bin
82ff1b67254b78c1ee0adf625a5874e83155b3daef551421cdcfc373801bb273
pdf-font-stream PDF embedded font (sfnt) at offset 0x129F9 16436 bytes