Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba06de4bf2f9ed20…

MALICIOUS

PDF

70.7 KB Created: 2021-02-20 00:35:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 961882fa8e5dcef82cdf1f422b6dccc2 SHA-1: 23740249a116a450f7b285203b36b7c68f0ab12d SHA-256: ba06de4bf2f9ed206aaef4d1691645122fda771efd839133d3a2a2023fa79c87
176 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by multiple heuristics, including a critical ClamAV detection and an ML classifier. The PDF contains a large number of embedded external links, suggesting a link farm or phishing attempt. The document body, though heavily obfuscated, contains references to 'facebook portal device' and is generated by wkhtmltopdf, indicating a potential lure for users seeking setup instructions. The presence of numerous external URIs points towards an attempt to redirect users to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://baarspo.ru/strik?utm_term=how+to+set+up+facebook+portal+device PDF link annotation
    • https://zugixipenelir.weebly.com/uploads/1/3/4/5/134591811/jowob-lomuzabol.pdfIn PDF document text
    • https://zajavaka.weebly.com/uploads/1/3/5/3/135322154/d6c0372ffd4fb69.pdfIn PDF document text
    • https://bivufinemena.weebly.com/uploads/1/3/1/3/131380184/7ef12b172.pdfIn PDF document text
    • https://cdn.sqhk.co/tudobele/jegcXkq/cube_surfer_app_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409826/normal_5ffd5885e4338.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413112/normal_60269423e9d96.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450152/normal_60208e985f224.pdfIn PDF document text
    • https://cdn.sqhk.co/jujadiziga/exmPgis/kumirowizu.pdfIn PDF document text
    • https://cdn.sqhk.co/fonixoligem/gnggjhw/19837409143.pdfIn PDF document text
    • http://duxogesubuz.22web.org/stellaris_hive_mind_2._2_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/tovipovo/XOcSjbJ/monkey_shoulder_batch_27_price.pdfIn PDF document text
    • http://tavaxibewoposo.iblogger.org/mejusazegujaj.pdfIn PDF document text
    • https://pobizaxorede.weebly.com/uploads/1/3/2/6/132696020/2ad65a2bbdef53.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nejotuwusa.rf.gd/lizzo_truth_hurts_piano_sheet_music_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/antares_autotune_logic_pro_x_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xovekolamoxe/xovulitovenivufaka.pdfIn PDF document text
    • https://s3.amazonaws.com/bofake/camp_x_ray_movie_free.pdfIn PDF document text
    • http://pabadebaluke.rf.gd/nietzsche_the_gay_science_god_is_dead.pdfIn PDF document text
    • https://s3.amazonaws.com/xakajoziwibi/arduino_mega_2650_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/global_handwashing_day_report.pdfIn PDF document text
    • http://potovoz.rf.gd/detopifa.pdfIn PDF document text
    • https://s3.amazonaws.com/fifuto/zidoduxaruwodab.pdfIn PDF document text
    • https://s3.amazonaws.com/jejulurowev/blackpink_background_information.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
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d527.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD527 5468 bytes
SHA-256: 41c9ad75b246ee3a73905a32519e7a83130971850bae6dab7a4db3b6f4a638a2
font_01_sfnt_off0000e7df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7DF 11000 bytes
SHA-256: 24686511536e129a7ba512036abaa28924e96556f99a196fe6815858b280f774

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