Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1a44150d0921233…

MALICIOUS

PDF

64.1 KB Created: 2021-01-04 18:02:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 9bce089dc2d5d37da73ad07a49324d1a SHA-1: dfaec62fed579f0496414eb47942fbe3134d7cd2 SHA-256: e1a44150d092123338c8390ad9ba3af19c13347dadb0c3e78b4f3c1f06d28779
214 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious sites, as indicated by the 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' heuristics. The document body, though heavily obfuscated, contains keywords related to Estee Lauder lipstick colors, suggesting a phishing lure. The embedded URLs point to known malicious infrastructure, and the ClamAV detection confirms its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://gettraff.ru/123?utm_term=estee+lauder+lipstick+colors In PDF document text
    • https://pozategon.weebly.com/uploads/1/3/2/6/132695347/toxedujebavepu.pdfIn PDF document text
    • https://cdn.sqhk.co/kusewupudin/2m9fiha/.pdfIn PDF document text
    • https://zemibojonu.weebly.com/uploads/1/3/5/3/135324970/xowumixewa_tasoxubu.pdfIn PDF document text
    • https://cdn.sqhk.co/joxutedunik/haihpS8/86689243499.pdfIn PDF document text
    • https://cdn.sqhk.co/reretukida/gdMRahf/usa_network_summer_shows_2020.pdfIn PDF document text
    • https://tumenunomowet.weebly.com/uploads/1/3/0/7/130775025/9945829.pdfIn PDF document text
    • https://jenitexul.weebly.com/uploads/1/3/4/8/134859983/gewonukut.pdfIn PDF document text
    • https://cdn.sqhk.co/xasakeza/dgdPbhn/60914343912.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/e92c06af-ff87-4837-aa1e-ae233028ede9/color_swap_game_app.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32ed50cd-a92c-449d-a38d-46feb6e60abf/62290374287.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23f51156-c440-4ad1-a888-cd3613ab8cd0/jersey_mikes_turkey_sub_in_a_tub_nutrition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5fca12df-1cf2-43b7-aec5-63251df4f944/recrystallization_uses_in_industry.pdfIn PDF document text
    • https://s3.amazonaws.com/firudegix/4777581385.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_off0000b84f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB84F 5088 bytes
SHA-256: a8cf16cbac5ac1de15ed20748a94e582deb23c4cab726078c1e97d1426f968b1
font_01_sfnt_off0000c9ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9AE 12692 bytes
SHA-256: 6e7abd287b135f02270cd9281e9ccafc30db6fe14f267bd43a54c6dfab2deaf5

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