Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e68280ff0b3cbfe…

MALICIOUS

PDF

75.3 KB Created: 2021-06-07 01:02:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 66448d43cc45eaf5faf24f27a0963e3d SHA-1: dffb6f23a35e854f836f0c6e325556ab50103f5d SHA-256: 8e68280ff0b3cbfe0d963736f0408a53ab1b241b02fb992c9da8206eb90625d4
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URL that, when clicked, redirects to a suspicious domain. The document body, though heavily obfuscated, suggests a lure related to 'animal cell coloring page 30', likely a pretext to encourage clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://garglob.ru/pbw?utm_term=animal+cell+coloring+page+30 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374848/normal_60bad649eed07.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500882/normal_5fcbc5a2aac10.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367627/normal_605b4cfbaf1c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411246/normal_6032cea7b2bfb.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4450040/normal_60b06c264b819.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/99355168-3f28-45c1-9b92-8d9e1c5894d9/jigonetogax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2eae61d-9519-424c-a27e-4e9bfe490e0a/how_to_plan_gym_workout_for_beginners.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74b36c9d-1aeb-42e5-b355-f4ba548069f1/jusewovebonati.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01f8321c-fd28-4c19-a063-82b9573ef6cc/links_awakening_explained.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7ace7d8-6726-48e0-be6e-f97ec081460e/refamumubodumepemeninafan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4417fb0b-9430-4973-bce5-33b47cad3f69/naze32_rev_6_cleanflight.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0bb4ff85-6481-46d9-add2-acf790dab46b/dafisukuv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b98236b3-f640-4e7d-a69d-81082886a0e7/35255652996.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ce031f9-f7de-4720-80bf-ff328b1b6827/65752026333.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87628788-d4b7-46dd-a675-6791918df2c2/19708155900.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/098710a1-8407-49cd-8f5f-87f959bd4a88/ms_sharepoint_video_tutorial.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31ccc374-6ee0-420c-8581-7dbc1d54e81b/talking_tom_cat_2_4.2_apk_mod_unlimited_coins.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e948e6e5-d383-4c85-a995-27f98101bd3b/xopigurozozejosebemadi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cacfa3a3-2092-4264-810b-847c38d7ffdd/maze_runner_free_movie_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51b8cfb1-f72f-4610-82ac-24d698b35acf/nexukunitafosuxadinifu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3239b769-3b6e-4ffd-9f2f-ed6f543b63a5/parkour_race_freerun_game_mod_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db48fcc3-b311-403d-a64b-94ea75f38800/65905086829.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b51571e7-de19-4cc8-8d02-6c9c28accbb0/meade_etx_60at.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e77e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE77E 5368 bytes
SHA-256: c24e1bbb12e03ff9e8a9aa1b01435bc7c277f595d7263a5de11acb135733634d
font_01_sfnt_off0000f9aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9AA 10636 bytes
SHA-256: 4445d70766641e9900f2fa129e0dbc19e1636166286ad2ef85c33ca9604cc3e3