Malicious PDF — malware analysis report

Static analysis result for SHA-256 094a944a1cbfa0d8…

MALICIOUS

PDF

73.0 KB Created: 2021-06-10 16:59:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: ecfaf4b7f1f02c084069a930ebbf7498 SHA-1: 0e048bfaac45415c6af19deb492ec46659ea7bbb SHA-256: 094a944a1cbfa0d854637f10f8300daafdd1cfc51d1d560a88f21f6c094ac6ef
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://inwebjor.ru/pbw?utm_term=masole+goisilu+assamese+song PDF link annotation
    • https://belavapapase.weebly.com/uploads/1/3/4/4/134444277/828f682fa26.pdfIn PDF document text
    • https://towajusuw.weebly.com/uploads/1/3/4/5/134521237/d5d9b8a60f38.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416319/normal_60426ed8f2ea9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415962/normal_5fe58af16a78e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365627/normal_606e2f9149517.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471091/normal_5fc913d5c3d57.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368770/normal_60b8916a49cac.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485826/normal_5fc7bc99d419b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500438/normal_5ff7776ed8e4f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375891/normal_5ffbb792c31a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474169/normal_602efb9238591.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380858/normal_5fed2c3328fca.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://nerobedevu.pbworks.com/f/dogapipapekivukebokilem.pdfIn PDF document text
    • http://tefimemovem.pbworks.com/f/can_you_play_2_player_on_goat_simulator.pdfIn PDF document text
    • http://sufizilofab.pbworks.com/f/xagetotobukigimivobogajan.pdfIn PDF document text
    • http://rezedul.pbworks.com/f/semuwovasetelibajawomipe.pdfIn PDF document text
    • http://lekipirunezi.pbworks.com/f/vexoxumap.pdfIn PDF document text
    • http://kokoxudalux.pbworks.com/f/nasa_meteor_warning_2022.pdfIn PDF document text
    • http://sozakuvepar.pbworks.com/w/file/fetch/144648657/kavolitexusodam.pdfIn PDF document text
    • http://nerolelupi.pbworks.com/f/dasarugovokifibekubi.pdfIn PDF document text
    • http://lifabukis.pbworks.com/w/file/fetch/144805455/do_weekends_count_for_irs_refund.pdfIn PDF document text
    • http://pafunanukexe.pbworks.com/f/historia_de_la_pasteleria_en_francia.pdfIn PDF document text
    • http://jifesepapo.pbworks.com/w/file/fetch/144793209/what_is_a_size_10_in_hollister_jeans.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_off0000d373.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD373 4716 bytes
SHA-256: 4bc025b6007ab6cf1d2495fb9fbeaa4f6f2d6a6d63e2204463a15e6e10a09c08
font_01_sfnt_off0000e361.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE361 10704 bytes
SHA-256: 823abfba1656273e67dc362f93bde662a3ba68bb29228edfb03ac8fb3f90cc90
font_02_sfnt_off00010830.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10830 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3