Malicious PDF — malware analysis report

Static analysis result for SHA-256 06d001f280202f52…

MALICIOUS

PDF

78.0 KB Created: 2021-04-06 20:42:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 19143f893ff6e91ace3218c47172fe47 SHA-1: 72eb7ad047bb8bb3d02282059a9cf9721147aaab SHA-256: 06d001f280202f52728ee1d5a1c171a8a27694f2420c30ccacce15b98cc94dba
186 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The presence of URLs like 'https://lozipotod.ru/strik?utm_term=verizon+lg+cosmos+3+sim+card' indicates a potential lure for users searching for specific device information, likely leading to phishing or malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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
  • 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.
  • 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://lozipotod.ru/strik?utm_term=verizon+lg+cosmos+3+sim+card PDF link annotation
    • https://vosujesu.weebly.com/uploads/1/3/4/6/134646347/8259314.pdfIn PDF document text
    • https://cdn.sqhk.co/sikibeve/MjgidXG/turbo_kit_for_2007_toyota_camry.pdfIn PDF document text
    • https://tiriwubesunadew.weebly.com/uploads/1/3/0/7/130739346/a50d7cf20972f85.pdfIn PDF document text
    • https://wovovude.weebly.com/uploads/1/3/1/3/131397940/e39056ca1.pdfIn PDF document text
    • https://cdn.sqhk.co/losiluja/7yhhSld/wovipufinajun.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472768/normal_6045bf7778d1c.pdfIn PDF document text
    • https://zerivomixiloz.weebly.com/uploads/1/3/4/6/134664353/5428104.pdfIn PDF document text
    • https://dibevoxatatot.weebly.com/uploads/1/3/1/1/131164568/mapirinasir_vusowaw_fenulewi_gobarurisanunig.pdfIn PDF document text
    • https://cdn.sqhk.co/felegabiw/ic9hjaA/12866536304.pdfIn PDF document text
    • https://cdn.sqhk.co/bavimimo/ibjbLie/58203455454.pdfIn PDF document text
    • http://blekrossi.ru/43004574245ibams.pdfIn PDF document text
    • https://cdn.sqhk.co/lebexuzo/n7zzkic/mikabopobubodaxe.pdfIn PDF document text
    • http://gramnews.xyz/ciencias_sociales_4vwt0e.pdfIn PDF document text
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.pdfIn PDF document text
    • http://tryraisins.club/what_caliber_does_a_30-30_shootmmh75.pdfIn PDF document text
    • http://pelistens.xyz/wudonotufabojezowetevevsi4t1.pdfIn PDF document text
    • https://cdn.sqhk.co/rusukumuva/a2khfjg/jurassic_world_the_game_hack_unlimited_everything_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425235/normal_6066dd9e2391d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463825/normal_6048707985edd.pdfIn PDF document text
    • https://cdn.sqhk.co/kovutego/UNsLpjd/91657303867.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tedowafomaru/sivapitilanexekilirofux.pdfIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/mipokomabaxalowalugimum.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/interest_groups_icivics_answers_the_potato_problem.pdfIn PDF document text
    • https://s3.amazonaws.com/tugabijenovili/what_is_the_normal_a1c_count.pdfIn PDF document text
    • https://s3.amazonaws.com/salade/fozekorugivetegusagaxi.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_off0000f418.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF418 5440 bytes
SHA-256: 61110e0cd8ea99198dab3c9ffab55b05aee84299f2b3d83f3939cd1a6dc38155
font_01_sfnt_off0001068c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1068C 10432 bytes
SHA-256: 3e5d69ca2dc82392aa88393fa22f0920a5d9f2ed6ed2b7bda06e29df46a3caa4