Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e4aa95fb89c7fc0…

MALICIOUS

PDF

70.5 KB Created: 2020-12-26 03:50:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b4770ed5d43811f90252be0689df23b1 SHA-1: 1e3f39612f95b98f186795e53a70eaf717673e7c SHA-256: 4e4aa95fb89c7fc0aae7b4472991022fdbd1161b90b08136c40b2f6db0686a1e
254 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.007 JavaScript

This PDF document exhibits characteristics of an advance-fee scam, attempting to lure the user into clicking a malicious link. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' strongly indicates this intent. The embedded URL 'https://ggtraff.ru/123?utm_term=hemming+co.+reported+the+following+current-year+purchases+and+sales+for+its+only+product' is flagged as a known malicious redirector, further supporting the malicious nature of the document. No scripts were extracted, but the presence of malicious links and the scam lure are sufficient for a high confidence assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://ggtraff.ru/123?utm_term=hemming+co.+reported+the+following+current-year+purchases+and+sales+for+its+only+product
    • https://xukoxaxap.weebly.com/uploads/1/3/4/7/134748194/xajaxa.pdf
    • https://cdn-cms.f-static.net/uploads/4365626/normal_5f8703cee3a21.pdf
    • https://cdn.sqhk.co/zititepu/Nibuwmr/65483498407.pdf
    • https://cdn-cms.f-static.net/uploads/4408004/normal_5f94153a63e1b.pdf
    • https://cdn-cms.f-static.net/uploads/4463266/normal_5fa8af2e8f52c.pdf
    • https://cdn-cms.f-static.net/uploads/4464056/normal_5fa890df85cbd.pdf
    • https://cdn-cms.f-static.net/uploads/4455183/normal_5fd60bb69ec77.pdf
    • https://cdn.sqhk.co/ditetona/NGknmja/bandai_namco_store_japan.pdf
    • https://cdn-cms.f-static.net/uploads/4406170/normal_5f9ba872e444f.pdf
    • https://julapaxukej.weebly.com/uploads/1/3/4/4/134492969/banatodipaxodux.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/b9dd193a-de61-4536-b5bf-33b421868273/razanipikabisedawosoto.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_off0000d55a.bin
ff05926ab3fc9ff6e9a2ac756fbfd5e87303ca7a46f7c9989815f99eff5d1a27		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD55A 5788 bytes
font_01_sfnt_off0000e908.bin
fc198640d17c6c990c2f6e92cbee160e386809eef43dac27b6f44be1e75833d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE908 10356 bytes

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