Malicious PDF — malware analysis report

Static analysis result for SHA-256 9eecdccb6a5109fc…

MALICIOUS

PDF

76.6 KB Created: 2021-05-04 11:58:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59e11373a3954c642c68427edf58d8d3 SHA-1: 97807d5dcac36df04ad0cacbaecbfe942385f1a2 SHA-256: 9eecdccb6a5109fc2bda9c2b0491e721c0ce8afa144d9bea33fec1026c000402
156 Risk Score

Malware Insights

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

The PDF document was flagged by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicate a high probability of maliciousness. It contains a large number of external links, suggesting a link farm or phishing attempt. The primary malicious URL identified is https://lozipotod.ru/strik. No scripts were extracted, but the PDF structure and heuristics point towards a phishing or malicious redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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
  • 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=sex+and+the+city+movie+cast+lily
    • https://pivazadigemeza.weebly.com/uploads/1/3/4/6/134642233/2ac14869f219.pdf
    • http://tapalofaxag.22web.org/complete_javascript_tutorial_with_examples.pdf
    • http://bopodimo.iblogger.org/vintage_dressmaker_sewing_machine_manual.pdf
    • https://gixujadimi.weebly.com/uploads/1/3/4/7/134708567/lubev-pikex-narupopebik-kozemib.pdf
    • http://pokawibu.iblogger.org/wigofix.pdf
    • http://vudipeledu.iblogger.org/lofofagagadoluduxub.pdf
    • https://jetisinodab.weebly.com/uploads/1/3/5/3/135335938/vijukezuriwoti-zoxoworolize.pdf
    • http://zigejetulanoda.iblogger.org/tamil_memes_creator_pro_apk.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://20996a60-9695-4f45-8fdb-44bdc783da55.filesusr.com/ugd/c57cae_c65931415ee7457bae2b034d415b89d2.pdf?index=true
    • https://uploads.strikinglycdn.com/files/f73e3548-2105-4633-a532-249519a0f39b/52017738764.pdf
    • http://rulalovurodaf.epizy.com/nilavekixijipogotozanuvev.pdf
    • https://uploads.strikinglycdn.com/files/a070c722-590f-43ac-a080-5cccf9c00f25/1994_flair_marvel_cards_price_guide.pdf
    • https://uploads.strikinglycdn.com/files/ab072e68-39f3-480a-8519-4590b55a4903/22699250477.pdf
    • https://5984e891-aecd-43e6-866f-efdb297c9c35.filesusr.com/ugd/403565_c2547fc911374c248e3bda921c97fbe9.pdf?index=true
    • https://2cfcb734-ec62-4cd9-b61c-03d4762ad765.filesusr.com/ugd/a891c0_2375f404080945a5baaa4e3cc968f773.pdf?index=true
    • https://ce83042b-5faf-46b5-bcbb-9b4d05ec7d33.filesusr.com/ugd/a31856_1499ce6a4b514152ad6df19dc98fb617.pdf?index=true
    • http://nebobabag.rf.gd/74784301826.pdf
    • http://xeligelejo.rf.gd/27983006419.pdf
    • http://navezep.epizy.com/71744524804.pdf
    • http://gumonak.epizy.com/become_a_youtuber.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_off0000ec2d.bin
13c4976d0b04c0fd2581201638d3d4ef057c9e3addff110ebdd4240febe913bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC2D 5416 bytes
font_01_sfnt_off0000fe86.bin
7a88043f28f35ff408e5ad8bc54cd83911df94704a23a1673e4db1863624a9ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFE86 11320 bytes

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