Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c685f03041b2cef…

MALICIOUS

PDF

78.1 KB Created: 2021-02-21 18:57:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dc6f81a05d4ccece5fb2077c8bd3553d SHA-1: 140f902d47ecc99d634b842d43378331352f3ab1 SHA-256: 9c685f03041b2cefdb2e7e274e69c86953096fa6400fb164010b5edb08c39f76
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL, https://leonvi.ru/wix?keyword=dracut+police+department+jobs, is likely part of a phishing or scam campaign, attempting to trick users into believing they are accessing job search results. No scripts were extracted, but the PDF structure itself contains the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/wix?keyword=dracut+police+department+jobs
    • https://static.s123-cdn-static.com/uploads/4501804/normal_5fcc2ef6a872f.pdf
    • https://static.s123-cdn-static.com/uploads/4465394/normal_5ff919cb80f83.pdf
    • https://static.s123-cdn-static.com/uploads/4417226/normal_5fc7d745d4063.pdf
    • https://lobizuwoxigamog.weebly.com/uploads/1/3/4/5/134515373/ritapuvosilu_zufivi.pdf
    • http://jekigun.22web.org/37879642204.pdf
    • https://wigobozigor.weebly.com/uploads/1/3/5/3/135345973/nijepevimen-rasigam-reromo-pejuguxak.pdf
    • https://zevebijupaxize.weebly.com/uploads/1/3/4/7/134754497/didakigepidinu.pdf
    • https://bojubuloxobepi.weebly.com/uploads/1/3/0/9/130969884/7628837.pdf
    • https://zorivaleguzovul.weebly.com/uploads/1/3/4/5/134596353/3e35c2d70.pdf
    • https://damanula.weebly.com/uploads/1/3/1/8/131856109/rubekafev-zavame-xijebevageti-titufi.pdf
    • https://joverukaded.weebly.com/uploads/1/3/4/4/134433057/baxofutelip.pdf
    • https://kofivenemiwelew.weebly.com/uploads/1/3/1/3/131380814/c5590.pdf
    • https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/1cf4fb9a2411.pdf
    • https://cdn-cms.f-static.net/uploads/4386087/normal_5fe92f55cb611.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zavizalovop.epizy.com/printable_weekly_planner_sheet.pdf
    • https://s3.amazonaws.com/palevijuj/lagu_bohong_kamu_tukang_bohong.pdf
    • https://s3.amazonaws.com/liwafo/gaxelodiloxi.pdf
    • https://s3.amazonaws.com/mejobu/ishq_ka_raja_addy_nagar_song_ming.pdf
    • http://tapanowi.epizy.com/safenopatimadita.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_off0000f44d.bin
16b97a1557e10bc1094635354e5ecc6df0eba2b7253b3bbecb05b8db943f2bfe
pdf-font-stream PDF embedded font (sfnt) at offset 0xF44D 5436 bytes
font_01_sfnt_off000106ab.bin
eeb4083794faf78090e694d4a123fb6536c9bd2d3f88ddb08cd74d3c9dd02ee5
pdf-font-stream PDF embedded font (sfnt) at offset 0x106AB 10660 bytes