Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a97f15e8c00bd88…

MALICIOUS

PDF

80.2 KB Created: 2021-03-07 05:27:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: dde081c6a15e329053eb6cff8fe8c739 SHA-1: 941ff415c7409ede85441d69bc96129140ae7b1c SHA-256: 3a97f15e8c00bd88b811f5e9147ee3a7dd247329b9155e85631ea5f2862788f7
204 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains lures related to payment and bank instructions, indicating a business email compromise pattern. It also contains numerous external links, with one specifically identified as a malicious redirection to 'soxebez.ru'. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to phish for credentials or financial information via the linked site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://soxebez.ru/wix?keyword=what+do+pay+upon+receipt+mean PDF link annotation
    • https://gakafapokizi.weebly.com/uploads/1/3/5/3/135319358/65cda4b.pdfIn PDF document text
    • https://cdn.sqhk.co/mewobonovagi/ja8t94c/hallmark_movies_now_app_reviews.pdfIn PDF document text
    • https://dogopakuva.weebly.com/uploads/1/3/4/6/134698139/4959676.pdfIn PDF document text
    • https://cdn.sqhk.co/suzironanes/iehejhi/rebirthing_lyrics_skillet_meaning.pdfIn PDF document text
    • https://dibevapanowodi.weebly.com/uploads/1/3/0/7/130776811/jinuvug.pdfIn PDF document text
    • https://cdn.sqhk.co/tedigedubemi/hxievBS/93734346571.pdfIn PDF document text
    • https://cdn.sqhk.co/fadanade/xjqgfje/58120127480.pdfIn PDF document text
    • https://bekajujoxofutit.weebly.com/uploads/1/3/1/4/131406668/dc0921fb.pdfIn PDF document text
    • https://xuvamifete.weebly.com/uploads/1/3/0/8/130874567/lanaroxurabu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/tarizirefevifab/56927582412.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/nafewegaxagovava.pdfIn PDF document text
    • https://s3.amazonaws.com/tokit/mujovubepedetu.pdfIn PDF document text
    • https://s3.amazonaws.com/jivamubug/30611282769.pdfIn PDF document text
    • https://s3.amazonaws.com/tikoweravisixu/new_album_songs_audio_free.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/37734369026.pdfIn PDF document text
    • http://bujekotu.atwebpages.com/majox.pdfIn PDF document text
    • http://vexabimumemig.atwebpages.com/how_to_install_fastway_e2_hitch.pdfIn PDF document text
    • https://s3.amazonaws.com/tapelu/xomojimisofuvetizedew.pdfIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/life_fitness_elliptical_troubleshooting.pdfIn PDF document text
    • https://s3.amazonaws.com/bokofapig/aaa_telugu_movie_songs_naa_songs.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eead.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEAD 5100 bytes
SHA-256: ea82ef7619c1f199232b88abbe0ac562f2eed98a5f2c3deb1015b36f7ce62acf
font_01_sfnt_off0000ffe0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFE0 11288 bytes
SHA-256: ccefedc5cf56d7f9a6ab1a369e0f20135e0fb1f572a019bb5fc9570153f9e17d
font_02_sfnt_off0001257f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1257F 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3