Malicious PDF — malware analysis report

Static analysis result for SHA-256 8efe8b9ea3233491…

MALICIOUS

PDF

73.5 KB Created: 2021-03-23 01:18:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8716de42a9e014368df0bbfb80dee199 SHA-1: de8ae2b0c669e15fe7a840ef58d8b00c3438b129 SHA-256: 8efe8b9ea32334913badde1b65d6e50991b6b41820f006d81db16eff6c26a756
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains multiple embedded URLs, one of which, 'https://bologen.ru/wix?keyword=skinerals+self+tanner+turned+green', is directly associated with the PDF_URI heuristic. The presence of embedded URLs and the overall detection suggest a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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://bologen.ru/wix?keyword=skinerals+self+tanner+turned+green
    • https://cdn.sqhk.co/pabelemusib/hbji582/michigan_abortion_consent_form.pdf
    • https://cdn.sqhk.co/tekuligote/jicicqN/tejefurukevudajexabe.pdf
    • http://bathforlegs.xyz/vusofuzumepugc8b5b.pdf
    • https://cdn.sqhk.co/kuwusemob/jathiji/tigesavezodavawazezodoju.pdf
    • http://studyweb.site/express_vpn_for_pc4u7ta.pdf
    • http://instahelpforbusiness.com/apple_app_store_apk_ziprmlor.pdf
    • https://cdn.sqhk.co/sinonari/igijqwr/51558802281.pdf
    • http://airbin.top/general_durable_power_of_attorney_form_massachusettsiv70l.pdf
    • https://cdn-cms.f-static.net/uploads/4475866/normal_60502a2d1d754.pdf
    • https://static.s123-cdn-static.com/uploads/4369643/normal_5fe31a18b25c1.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/89e730d0-c9b6-492a-8910-6b90a4d7e17b/hobart_4612_meat_grinder_manual.pdf
    • https://uploads.strikinglycdn.com/files/8aec9190-65eb-457b-bb57-9881fce29141/47224337324.pdf
    • https://s3.amazonaws.com/tiniruru/faluzop.pdf
    • https://s3.amazonaws.com/vuraradaso/goxesarizujitebobijogi.pdf
    • https://uploads.strikinglycdn.com/files/f1ac560b-1715-4946-a8c3-e52e7e8b55b4/how_to_play_multiplayer_goat_simulator_switch.pdf
    • https://uploads.strikinglycdn.com/files/f70f6dde-d41f-4fd5-a63e-e6ff4599b59e/nipabuvixeresuwetasesus.pdf
    • https://uploads.strikinglycdn.com/files/16f267e4-2ae0-4787-8050-73a4877e640f/lg_ac_smart_error_codes.pdf
    • https://uploads.strikinglycdn.com/files/59add738-218a-4782-ba15-e46c910aa36a/que_se_significa_la_palabra_guerra_de_guerrillas.pdf
    • https://s3.amazonaws.com/jezobasit/vopud.pdf
    • https://s3.amazonaws.com/boxujetanonikuv/jagixizuganipuvudo.pdf
    • https://uploads.strikinglycdn.com/files/d9dbbc9e-9b36-4938-9085-99480ca47baa/91791375913.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_off0000e195.bin
acbf4a04a3f20bc5ef4b07b841dac85b507364c40d7382d3a4f9937158886f9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE195 5244 bytes
font_01_sfnt_off0000f37c.bin
260e153fe3ca68d11e200781259bfd5c4931af73c1b35992df462a470f842746		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF37C 10972 bytes

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