Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd2fb6ec090e57ae…

MALICIOUS

PDF

307.5 KB Created: 2021-01-05 16:17:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: a73017a2b86e44f1c23112485cff5d68 SHA-1: b5fad0c8484bda636a1574f8ba5ecf8849db0c4d SHA-256: dd2fb6ec090e57aeda1be673b18499834662ba72b543bc7970f13e180a8396f2
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing site or download further malicious content. The document body, though heavily obfuscated, suggests a lure related to a religious or motivational theme, which is a common tactic for social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

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://traffnew.ru/123?utm_term=strength+will+rise+as+we+wait+on+the+lord PDF link annotation
    • https://worozimovazez.weebly.com/uploads/1/3/1/4/131406108/87232552.pdfIn PDF document text
    • https://cdn.sqhk.co/lakisitu/jfjjjeD/badugibuganurulapowawefi.pdfIn PDF document text
    • https://fedonofawok.weebly.com/uploads/1/3/4/8/134881994/javinevixole.pdfIn PDF document text
    • https://cdn.sqhk.co/kikutajaz/08khPOO/dugakopokoxala.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393188/normal_5fbe712f3a440.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454043/normal_5fc0ca3da8c14.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f049f65-a5c3-4359-9cfa-c958c07d9fea/on_being_ill_quotes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a1c8ddc-008d-4f3c-9ce4-dcd71c9a77d8/pepunakemijokuvovu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5cfb6e1e-3f2e-441d-a79b-bc151cd86d5f/onamalu_telugu_movie_online_youku.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c24aeadf-56b1-4196-a57a-ebd581ac3ac6/texud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dde03f8b-fe14-4af5-82b8-0489867aad78/realtek_rtl8188ee_802.11_bgn_driver.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000488f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x488F0 5284 bytes
SHA-256: 62598c0e4d30134c4704501b730e1ed190e5e5ac3ef60cfbfff7aff177e92df4
font_01_sfnt_off00049aed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49AED 10924 bytes
SHA-256: 076e5e2f65b907e9fbf4d96bdd274d6f3705d46364bef6a822028de4f145b362