Malicious PDF — malware analysis report

Static analysis result for SHA-256 bebd0e18519d6324…

MALICIOUS

PDF

87.2 KB Created: 2021-05-18 17:48:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 867a12ba365f41c001aee51d16bc92fc SHA-1: ebfbee11ef28230c16f057019f34fcf70b5276b6 SHA-256: bebd0e18519d63245fdff429dd8ad6e607e0be3f52de8f93a4a95b6666b37ba7
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier indicating a high probability of maliciousness. The PDF contains a large number of external links, suggesting it functions as a link farm or a lure to a malicious site, specifically pointing to 'https://botokaw.ru/strik'. The presence of embedded links and the overall structure strongly indicate an attempt to exploit users, likely through phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

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
  • 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.
  • 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://botokaw.ru/strik?utm_term=happy+hop+kawaii+jump+apk PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4478414/normal_6035dc8f35485.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454544/normal_5fdc32af10c21.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487647/normal_5fe9032ed977d.pdfIn PDF document text
    • https://pepadamive.weebly.com/uploads/1/3/4/4/134468065/1781245.pdfIn PDF document text
    • https://bosudire.weebly.com/uploads/1/3/4/4/134456289/9501686.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443821/normal_60479e429819f.pdfIn PDF document text
    • https://powinategirax.weebly.com/uploads/1/3/4/7/134736766/6296c674b58d58.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464541/normal_60218682cb4d9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/6d94a8e9-f376-43be-b42e-657d652681cd/fosidatomiretefapopefujuw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f33e3b25-4e13-47fa-95cb-93a77b4d325c/how_to_start_a_mantis_tiller_4-stroke.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d418a6cb-d152-443b-8079-0b413416198e/pals_algorithm_svt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6287652c-97d1-4ec2-8912-590f3c32f919/18596096422.pdfIn PDF document text
    • https://s3.amazonaws.com/kavugusepe/how_to_fix_my_kenmore_700_series_washer.pdfIn PDF document text
    • https://s3.amazonaws.com/jivamubug/tuvajitogonorezexixe.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/application_format_for_apply_teaching_job.pdfIn PDF document text
    • https://s3.amazonaws.com/kudowo/96656516847.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/987c58ba-f1e5-40c3-8ab1-c3964ad90a60/vololuwirabo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd79ad81-acef-4f7a-8322-792659af6086/toyota_camry_2018_xse_white.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4857a93c-81d9-4320-8fb7-6261ece14aff/what_is_daltons_atomic_theory_definition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da8d2e03-a025-442a-9569-df466b23dc7c/how_did_navy_seals_died_in_training.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/730abdf0-138a-48d0-a47b-a6d9b9431db6/3083870002.pdfIn PDF document text
    • https://s3.amazonaws.com/zodawanuror/gibuxenunebowumafo.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e59f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE59F 6440 bytes
SHA-256: a606a6dede3b99472d2ac97761204782646b5f75106b48d1abccbe9a99ca9a4c
font_01_sfnt_off0000f562.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF562 2968 bytes
SHA-256: 89d376838ca3ba7f07a9bc3f02bedf09a61364d413f1ac46361213d973cef626
font_02_sfnt_off0000fff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFF6 4628 bytes
SHA-256: 630f6b1b8e4d8b17f68aa37edd25bf45623a68e8c0d48212c2b38ae099a68ad9
font_03_sfnt_off00010fb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FB4 1928 bytes
SHA-256: 3ba3594336220346113ba545bb75d2204f87609f528c31895dd6ac3d7a3faaa2
font_04_sfnt_off000118f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118F2 11600 bytes
SHA-256: 1d02d78c8557af04e8dc9f32bda0bdbc6357c84912c4e97e3bc755df2d66d2c6
font_05_sfnt_off00014006.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14006 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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