Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd2b61ff6f47390c…

MALICIOUS

PDF

73.5 KB Created: 2020-12-25 13:12:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 9034a998deabac85a338e0ff3027aa44 SHA-1: 0428dd63ddc0649177608f2b3796ae05acf86770 SHA-256: dd2b61ff6f47390c246a6c462e7aaeae10530647524b58a3f1b6337114f251dc
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, with a critical heuristic identifying it as a link farm. The primary malicious URL, 'https://traffnew.ru/strik?utm_term=wallpaper+hd+4k+iphone', suggests a lure related to wallpapers or similar content to entice clicks. The presence of ClamAV and ML classifier detections further supports its malicious nature, likely serving as a phishing or redirection mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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.
  • 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://traffnew.ru/strik?utm_term=wallpaper+hd+4k+iphone PDF link annotation
    • https://fekanarikivokil.weebly.com/uploads/1/3/4/8/134884633/sipije_zigewefavonizob_kozewarufe_pudufinuxiw.pdfIn PDF document text
    • https://nefakemibozike.weebly.com/uploads/1/3/5/3/135314079/japuposepewifujogu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/poresi/cadillacs_and_dinosaurs_arcade_game_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bofake/captain_america_winter_soldier_comic.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62d424f9-9147-418d-9321-65b63f99b198/viens-toi_en_ligne_maroc_electromena.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed6459d7-0915-4e33-b0a2-3dbaa7ef3f7e/dry_september.pdfIn PDF document text
    • https://s3.amazonaws.com/lezerawe/bracket_agogo_video.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8fd3baa2-870b-452c-8f3d-a4b072581d91/88988607463.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f298fe8-9514-4c65-8e5a-f7c5fcba2b78/78439400393.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd345a9d-cbd5-4f16-bdc9-33a87dea6187/remember_me_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d854f946-048b-4bb3-8e98-73baf396194f/werelutizukozen.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/frp_bypass_apk_samsung.pdfIn PDF document text
    • https://s3.amazonaws.com/nabifovu/fuzakogufom.pdfIn PDF document text
    • https://s3.amazonaws.com/savifin/building_society_roll_number_format.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/acb8cc05-1d33-4ba0-959b-3f7e1555bdf7/1562530244.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e3f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3F1 5036 bytes
SHA-256: 6bc48c4825acaaf58007c44441638ef9fba15434a9107fd5911826f94f8966d2
font_01_sfnt_off0000f51b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF51B 10396 bytes
SHA-256: 9d3265f84e8d1de86d8e960ca122a78c4fb1c43c1dffe96813af6176916943c5

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