Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cd19e308fa2c5cb…

MALICIOUS

PDF

76.2 KB Created: 2021-04-01 10:33:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1dc112030915d0de64704c18a7c230c1 SHA-1: 40f9826f5b1607a00ce9baed1b60b82b6fb92719 SHA-256: 2cd19e308fa2c5cb31d343747759520f899901fecc4a51c64c7bb0090690799c
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded URLs that point to external resources, suggesting it's designed to redirect users to potentially harmful websites. The presence of PDF-specific heuristics further supports its classification as a malicious PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jottigo.ru/wix?keyword=32oz+to+make+a+gallon
    • http://lufawobakisi.22web.org/22375370162.pdf
    • http://vejexoxidinu.iblogger.org/55253773746.pdf
    • https://cdn.sqhk.co/pimupigedu/h8o4kNw/commander_legends_leaks_translation.pdf
    • http://kodepovorivapi.mygamesonline.org/centroid_and_center_of_gravity.pdf
    • https://cdn-cms.f-static.net/uploads/4454172/normal_60418e9d48b39.pdf
    • https://cdn-cms.f-static.net/uploads/4448733/normal_602a2c1dad82c.pdf
    • https://cdn-cms.f-static.net/uploads/4486220/normal_605ac7a9a7678.pdf
    • http://bagawixaj.mywebcommunity.org/23687960750.pdf
    • https://cdn-cms.f-static.net/uploads/4490369/normal_6009ca4e16ba0.pdf
    • https://cdn.sqhk.co/molodomo/p0WDjih/space_racing_roketa.pdf
    • https://cdn-cms.f-static.net/uploads/4452607/normal_6052aaea40acf.pdf
    • https://cdn.sqhk.co/revikokelobu/ia9jjjc/dopizizogedagosudadugiwa.pdf
    • https://cdn-cms.f-static.net/uploads/4411917/normal_60257f22e4e92.pdf
    • http://fidekeleko.medianewsonline.com/finigabis.pdf
    • https://cdn.sqhk.co/navimoxa/jdVi8U4/axes._io_hack_mod.pdf
    • http://xirijapip.mypressonline.com/57592894121.pdf
    • http://tobaliwono.mygamesonline.org/auction_theory_krishna.pdf
    • https://cdn.sqhk.co/tuxogafu/Pvjhijh/64094972410.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/a7e05f0a-2fd3-47c6-bd50-d60a392d302e/86734153896.pdf
    • https://uploads.strikinglycdn.com/files/3611c9d3-6040-4ef8-901b-f96c4854d68c/qu_es_la_lucha_contra_los_molinos_de_viento.pdf
    • https://uploads.strikinglycdn.com/files/f4ff439c-c9dc-43d5-92d8-b896f85c0c08/12076658427.pdf
    • http://lasuwutiganije.rf.gd/hadestown_lyrics.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_off0000e7b4.bin
bdaf4ad9ef352f9ff486cf1f54a69d715d89a79e36960ea9827c85d3da61313d
pdf-font-stream PDF embedded font (sfnt) at offset 0xE7B4 5044 bytes
font_01_sfnt_off0000f8da.bin
1025122df5fc1e6c63884203dc53e9c6d8a6470c5257b8076314f302e6a9cee8
pdf-font-stream PDF embedded font (sfnt) at offset 0xF8DA 12568 bytes