Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c14c2f7124bfbc8…

MALICIOUS

PDF

68.9 KB Created: 2020-12-27 01:02:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 7bb702716ff611b81efc72a5c1d5bb7b SHA-1: bca4a23ada5e97c6b52813136bbbc5fd6d936c96 SHA-256: 0c14c2f7124bfbc8c406d4ba3a7dedf5ca1abccc7d67c4a35cc23f1d9137b07b
244 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file was identified as malicious by multiple heuristics and a machine learning classifier, and is detected by ClamAV as Pdf.Phishing.Trojan. The document contains a large number of embedded links, many pointing to disposable hosting, and one critical link to a known malicious redirector. The primary purpose appears to be directing users to malicious websites, likely for phishing or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://traffmen.ru/strik?utm_term=directv+login+sunday+ticket In PDF document text
    • https://lubuminovek.weebly.com/uploads/1/3/4/5/134590555/xepanatovotom_rukabigaget_vawodadipizobi.pdfIn PDF document text
    • https://cdn.sqhk.co/vorowobenune/ZKgjdge/underhanded_tactics_list.pdfIn PDF document text
    • https://ladetizor.weebly.com/uploads/1/3/4/7/134731735/549a43620.pdfIn PDF document text
    • https://cdn.sqhk.co/muzexeragod/eQhiuhi/37750031637.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413456/normal_5fe7b7c10e89e.pdfIn PDF document text
    • https://zibozofos.weebly.com/uploads/1/3/4/8/134896422/tipuxilagepip-zezukulezama.pdfIn PDF document text
    • https://gejixivipoza.weebly.com/uploads/1/3/0/9/130969358/1154782.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470826/normal_5fc74fffbd77a.pdfIn PDF document text
    • https://repugololenip.weebly.com/uploads/1/3/4/8/134880500/jejagavodexede_tododagab_manevub.pdfIn PDF document text
    • https://vuzodafolo.weebly.com/uploads/1/3/4/7/134732359/fakiju_ginemipisun.pdfIn PDF document text
    • https://zelubofiwexuf.weebly.com/uploads/1/3/4/2/134234915/rimemagebirufi.pdfIn PDF document text
    • https://ropedali.weebly.com/uploads/1/3/0/9/130969406/bebubetino.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366405/normal_5fbd10c7ad1e9.pdfIn PDF document text
    • https://cdn.sqhk.co/kurapobal/R1ykM0f/airline_tycoon_online_3.pdfIn PDF document text
    • https://nonuvatemex.weebly.com/uploads/1/3/4/4/134443968/a440ca0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421615/normal_5fc1dcaf480d1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000ce15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE15 5332 bytes
SHA-256: 55c6d3bc0153d16fc632925354f2d4608e9e649d95e665fbc09cadc430c6d644
font_01_sfnt_off0000e060.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE060 11424 bytes
SHA-256: a8b3f4c3511bce259e7747dbd618f89042fe2d5b07d1670866a82c61f3ddc2f9

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