Malicious PDF — malware analysis report

Static analysis result for SHA-256 d874be2b25870d79…

MALICIOUS

PDF

76.7 KB Created: 2021-03-17 03:39:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 341f4fc12a0dbf606b76af51f38a7d2b SHA-1: e5135ee23d53fff42c3c495a8fa6297858913947 SHA-256: d874be2b25870d79c2417c51e4ef6b2557e6c5382588d469794bad0867481634
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is likely a phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/wix?keyword=pars+khazar+rice+cooker+manual
    • https://cdn.sqhk.co/vivakawibaki/djdjcia/kuremuvenopejuxugudakopob.pdf
    • https://bopupuvi.weebly.com/uploads/1/3/1/6/131636777/1517588.pdf
    • http://erethiztzj.space/moteur_mwm_akd_112_d8hlf1.pdf
    • https://mufogijagojar.weebly.com/uploads/1/3/1/0/131070489/pidirexuvevor_lunolaramu_xevadepibufo_fekiromutino.pdf
    • https://cdn-cms.f-static.net/uploads/4413969/normal_600fafce86212.pdf
    • http://streichpack.online/jivujixazomojoferufak9k.pdf
    • https://nefitajufu.weebly.com/uploads/1/3/4/7/134712437/mofasaweloruvuviw.pdf
    • https://cdn.sqhk.co/fufeboxeri/jggckhh/9489379230.pdf
    • http://canonsburglake.com/defender_guard_camera_app6uo9f.pdf
    • http://good-production16.site/party_invitation_card_templates_freere3tc.pdf
    • http://keto-menu.online/xuluneroxuvozopafexemekownkby1.pdf
    • https://cdn-cms.f-static.net/uploads/4419628/normal_60285876d7d80.pdf
    • https://static.s123-cdn-static.com/uploads/4454304/normal_5fde5b2fac97a.pdf
    • http://mynasert.online/7995407612868aw0.pdf
    • https://static.s123-cdn-static.com/uploads/4453540/normal_5fed2fb813236.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/95e8304e-8845-4503-b281-d83d5770f0cd/kezut.pdf
    • https://uploads.strikinglycdn.com/files/11918953-1563-4b54-a2b2-de3960b0da1d/storyboard_director_job_description.pdf
    • https://uploads.strikinglycdn.com/files/9396a421-68d4-4360-8351-f6114f00ef88/wendys_menu_calories_breakfast.pdf
    • https://uploads.strikinglycdn.com/files/19872a8b-8c3d-40d8-8808-e7da7c620424/what_is_the_fastest_40_yard_dash_time_in_nfl_history.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee5d.bin
dec3fe627cfdea34091afb722e7c425aa71a2184122e14c825576125a88ad015
pdf-font-stream PDF embedded font (sfnt) at offset 0xEE5D 5152 bytes
font_01_sfnt_off0000ffc5.bin
a6c2332d707d0ecc2b3550a23f193bfaffe1bf414679c98b4e1f8f1e42e9a960
pdf-font-stream PDF embedded font (sfnt) at offset 0xFFC5 11108 bytes