Malicious PDF — malware analysis report

Static analysis result for SHA-256 62b5ed46a253432e…

MALICIOUS

PDF

143.4 KB Created: 2021-03-16 20:05:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a3adc04ac5a8d4f7a17a1ea2804e37f SHA-1: 2696e00d9f27202f1d3f001c0fe942057ffc46da SHA-256: 62b5ed46a253432e3ec766f07f9c4c521229a1e22f973124e5a76f1746243b46
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains an embedded URI pointing to 'https://golowaki.ru/123?utm_term=shankar+jaikishan+hit+songs+free', which is likely a lure for phishing or malware distribution. While no scripts were explicitly extracted, the presence of embedded URLs and the overall detection suggest it functions as a dropper or phishing document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://golowaki.ru/123?utm_term=shankar+jaikishan+hit+songs+free
    • http://casser.xyz/tekemuves7k3fh.pdf
    • http://ita-bio.fun/conundrum_book_anuj_dhar_freepwiv9.pdf
    • http://raisinshub.pro/65856626669sddcb.pdf
    • http://idealica-ituficiale.website/google_form_sign_in_sheetp3s2q.pdf
    • http://kazedoruredupe.22web.org/algebra_worksheets_6th_grade.pdf
    • http://persequen.com/biddeford_microplush_heated_blanket_digital_controllerl04jy.pdf
    • http://damomemisogadex.iblogger.org/72610133957.pdf
    • http://idealslimitaly.site/what_is_the_unit_of_ratedualj.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/jamuluvuvava/soruwuvopavenofi.pdf
    • https://s3.amazonaws.com/xoguwavosuje/fellowship_of_the_ring_book_online.pdf
    • https://s3.amazonaws.com/sirilagewuga/acog_mammogram_guidelines_family_history.pdf
    • https://uploads.strikinglycdn.com/files/b58f430d-fa24-4cea-8680-9ab37ad37c7c/australian_rainbow_fish_for_sale_uk.pdf
    • http://bakutogigu.rf.gd/les_miserables_cast_2019_michael_ball.pdf
    • https://s3.amazonaws.com/varolexexus/17900314580.pdf
    • https://s3.amazonaws.com/mamibis/72086761263.pdf
    • http://basetawagegula.epizy.com/doligerule.pdf
    • https://uploads.strikinglycdn.com/files/c0358ad1-478d-4e97-b6c5-725622aed199/why_is_command_r_not_working.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001ed78.bin
87c64b7210758fcff40acdbd1118cba046e6cc30fd1ae64812fefe1afa8f64c1
pdf-font-stream PDF embedded font (sfnt) at offset 0x1ED78 5028 bytes
font_01_sfnt_off0001fe80.bin
20b699139c52105d3d37fb0cefc1e5ccccf52c5b8c24505b104c53217c9855bd
pdf-font-stream PDF embedded font (sfnt) at offset 0x1FE80 10840 bytes
font_02_sfnt_off0002235c.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x2235C 4324 bytes