Malicious PDF — malware analysis report

Static analysis result for SHA-256 02a7681fac15fb37…

MALICIOUS

PDF

83.6 KB Created: 2021-05-09 18:23:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9fe73e3aa2af26c9e64fb81267a9905a SHA-1: 268225e60823c80c72cf23e210d743409af1b2fd SHA-256: 02a7681fac15fb37d0d85dbca47b11d89ea217e10cd93c13b31b8fdd67f69761
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to a suspicious domain, likely intended to deliver a secondary payload or redirect the user to a phishing site. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to exploit user curiosity or a need for information, aligning with phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://jumiwimov.ru/strik?utm_term=how+to+zero+gap+wahl+clippers
    • http://simcars.ru/rutakajar45asa.pdf
    • http://itravelimpressions.com/animal_farm_summary_chapter_47rgum.pdf
    • https://cdn-cms.f-static.net/uploads/4447253/normal_60316603edd1d.pdf
    • http://uabiomanix.xyz/58303001371otr2a.pdf
    • https://cdn-cms.f-static.net/uploads/4486523/normal_601712cf05683.pdf
    • http://wei-nmvc.com/roxebujaf35na.pdf
    • https://static.s123-cdn-static.com/uploads/4499622/normal_5fcd351f2d070.pdf
    • https://wumaluruporemad.weebly.com/uploads/1/3/0/9/130969386/sevisute.pdf
    • https://cdn-cms.f-static.net/uploads/4444647/normal_601b87b2b4efc.pdf
    • https://gozezitigaja.weebly.com/uploads/1/3/4/3/134340412/zapofejirigiwiwozuv.pdf
    • http://vvvvvvvvvvvvvvvvvvvvvb.xyz/how_to_start_an_occupational_therapy_practiceh6z2a.pdf
    • https://cdn-cms.f-static.net/uploads/4377935/normal_601333dc421cf.pdf
    • http://wordsidepost.top/crash_racers_toyhs1v1.pdf
    • http://chambrehub.xyz/lou_gehrig_farewell_speech_tonewqyz2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/zalomi/14210120967.pdf
    • https://s3.amazonaws.com/figugipopar/27589716116.pdf
    • https://883cd1dc-02d0-4059-8fa2-99201f92b631.filesusr.com/ugd/6166c9_65a8962ca37743b49e133d3fa6f43dee.pdf?index=true
    • https://2386e270-bd20-42c1-b3e5-1ba7eaa1d68d.filesusr.com/ugd/b4f0c6_a0e187eaec49410f94fbc8ebfd88ce53.pdf?index=true
    • https://s3.amazonaws.com/jevelel/sufofewijubifi.pdf
    • https://29aa9d28-cc9d-45fc-8d86-3718b5881c84.filesusr.com/ugd/74c34a_97892207a8cc43c8bda857d2a4ab46dd.pdf?index=true
    • https://2a497570-3881-454f-aefc-229a18bbdf22.filesusr.com/ugd/83e24f_0f84254d5cb44abcbfac84bf427b7160.pdf?index=true
    • https://s3.amazonaws.com/nolarifaforuxop/page-_break-_inside_mpdf_not_working.pdf
    • https://288c7b4b-0494-48f6-8ee2-9dd519b96b0a.filesusr.com/ugd/a107db_00b4c131138448468b49fdcea4763015.pdf?index=true
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc2e.bin
e2f94f26c354ad998ea077e87cf86336651e11cffeaf423ddb6c97e97711366f
pdf-font-stream PDF embedded font (sfnt) at offset 0xFC2E 4980 bytes
font_01_sfnt_off00010d49.bin
5e72ed144eac9d90ce9501aa9d27e4bccedc24334e30fb7aee773a2155e05260
pdf-font-stream PDF embedded font (sfnt) at offset 0x10D49 11044 bytes
font_02_sfnt_off000132c2.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x132C2 4324 bytes