Malicious PDF — malware analysis report

Static analysis result for SHA-256 b74cc8c1ec48e7f0…

MALICIOUS

PDF

81.3 KB Created: 2021-03-14 11:51:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 344156e6cf02d5d82eb62010e29bbe19 SHA-1: ddc15c4d718a37a8b0671cca9c1a344a0186eac3 SHA-256: b74cc8c1ec48e7f07fa6979cfd97c21b1dd86bfbe9e494e912f279ad731b6d49
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. The embedded URL points to a site offering 'apk crack games free download', suggesting a social engineering lure to trick users into downloading malware. While no scripts were explicitly extracted, the PDF structure and embedded URLs are consistent with phishing or malware distribution campaigns.

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://golowaki.ru/wix?keyword=apk+crack+games+free+download
    • https://cdn.sqhk.co/nimotixalulo/WjdgiLn/expenditure_report_2018.pdf
    • https://cdn.sqhk.co/nizufalagef/gcgffid/happy_chick_emulator_ios_13._3.pdf
    • https://tigasuzile.weebly.com/uploads/1/3/1/3/131379741/wonozalizalamijaxupo.pdf
    • http://zawopim.mygamesonline.org/deconstruction_definition.pdf
    • https://static.s123-cdn-static.com/uploads/4468531/normal_5fc8ec5d0c661.pdf
    • https://kagivosivozavex.weebly.com/uploads/1/3/4/7/134746508/456b71baafb.pdf
    • https://pugulabojoxo.weebly.com/uploads/1/3/5/9/135993792/vidoja.pdf
    • http://0fruits.space/csr8635_bluetooth_module_datasheetn8efu.pdf
    • http://jakartapro.xyz/uyire_songs_free_mp3_downloadlncpg.pdf
    • https://static.s123-cdn-static.com/uploads/4427498/normal_5fcbb86889fb9.pdf
    • http://sodahq.club/fimonawubunigoninapobuk673ey.pdf
    • https://static.s123-cdn-static.com/uploads/4481540/normal_5fdf54b30cd44.pdf
    • http://wordsideget.top/fubiwaminatakofirluqtj.pdf
    • https://cdn.sqhk.co/mukibusu/fHdhg3m/41390183143.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tozaduliwubega/corrugated_steel_sheets_specifications.pdf
    • http://tuwutexo.onlinewebshop.net/velidonodadevano.pdf
    • https://s3.amazonaws.com/devuxuzejozam/95497986072.pdf
    • https://s3.amazonaws.com/baxadelefofibuz/calendario_serie_a_tim_2017_18.pdf
    • https://s3.amazonaws.com/zubata/pijesa.pdf
    • https://s3.amazonaws.com/pibajuwi/bindiya_chamkegi_dj_mix_song.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_off0000ff49.bin
546596321cda5fac54d61eb15e9eef6e7fc7bc151bb3751370558cc9550da4cd
pdf-font-stream PDF embedded font (sfnt) at offset 0xFF49 5620 bytes
font_01_sfnt_off0001126f.bin
157cc7d0293e5deb8126590414c20fc415682a775c56d7313951473a746a1222
pdf-font-stream PDF embedded font (sfnt) at offset 0x1126F 11124 bytes