Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f2ce2c1c37d1770…

MALICIOUS

PDF

84.9 KB Created: 2021-03-28 23:10:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-13
MD5: b0b8c00842d1a734c3266098fdd7f4c2 SHA-1: 7daf1389b2c13c2ea4e80ade9b8a6c0ab620fa0b SHA-256: 7f2ce2c1c37d17706d242e6db193203ad444ee479557a89ec2af536dc047910d
146 Risk Score

Malware Insights

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

The PDF contains multiple external URLs, with one specifically mentioning 'bangladesh passport renewal form malaysia', suggesting a phishing or social engineering lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are consistent with techniques used to redirect users to malicious sites for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://jumiwimov.ru/123?utm_term=bangladesh+passport+renewal+form+malaysia PDF link annotation
    • http://rurojewof.22web.org/nositufotelijolejuze.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416654/normal_5fe13aa63c4d5.pdfIn PDF document text
    • http://judijemavup.22web.org/free_autotune_apps_for_android.pdfIn PDF document text
    • http://5gusevshop.space/lloyds_pharmacy_digital_thermometer_reviewuibek.pdfIn PDF document text
    • http://e-sparks.ru/22766857133ojax9.pdfIn PDF document text
    • http://sabumow.mygamesonline.org/hx_stomp_pedal_list.pdfIn PDF document text
    • http://kaxavetaxudu.mywebcommunity.org/thandi_alangaram_in_tamil.pdfIn PDF document text
    • http://drilltech.info/what_to_do_if_your_gas_furnace_stops_workingdu4bf.pdfIn PDF document text
    • http://fidafevemikiwe.mywebcommunity.org/what_are_antigens.pdfIn PDF document text
    • http://drive4mclanemilwaukee.com/inside_the_south_african_reserve_bank_downloadebqm1.pdfIn PDF document text
    • http://usacreditreport.info/what_size_are_pack_and_play_sheetsl6ocp.pdfIn PDF document text
    • http://static-get.top/why_wont_my_fitbit_versa_2_connect_to_gpsuo4uf.pdfIn PDF document text
    • http://keksik24.ru/the_wonderful_wizard_of_oz_script_play1jrn9.pdfIn PDF document text
    • http://pegujanixur.22web.org/lamegetusonan.pdfIn PDF document text
    • http://ledimpress.biz/aptoide_full_version_apk3eylm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376852/normal_60501483c332a.pdfIn PDF document text
    • https://gavebinakufir.weebly.com/uploads/1/3/2/3/132302735/dukuxa-redokebusan.pdfIn PDF document text
    • https://ripaduwik.weebly.com/uploads/1/3/5/3/135311581/ditadanamowuwalu.pdfIn PDF document text
    • https://gifetapajuloper.weebly.com/uploads/1/3/4/6/134682222/rironelozobi_tetazage.pdfIn PDF document text
    • http://lnstagram-copyright-confirms.com/vibivufeziwasukuxemojozkyxlu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388426/normal_5fed7c4231254.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409409/normal_5fe5e3a4f1895.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
    • http://pogapebod.rf.gd/what_does_the_eye_mean_in_egyptian.pdfIn PDF document text
    • http://vulomalizekuvu.rf.gd/api_platform_swagger_version.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_off0000fdf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDF9 5488 bytes
SHA-256: 8b8a4984b5c73d0d112f17ae043ff0baf8f48f3fbebbe59adc8f1dcb816b710e
font_01_sfnt_off00011086.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11086 11448 bytes
SHA-256: 14a19e04020d5bee3494444421bab6ccc9169091bd845b13962e416890b1b02c
font_02_sfnt_off0001373c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1373C 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34