Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e342bd39706b448…

MALICIOUS

PDF

82.4 KB Created: 2021-03-10 04:47:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e9a81bee57853d81c8e53e55ff4a5163 SHA-1: 2814a6c01686d7a48c11be948b994b809106c582 SHA-256: 2e342bd39706b448c7a92441f76e42db22d6f12b77573aa203560a2cab3745c4
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by both heuristics and a ClamAV detection as malicious. The ML classifier also strongly flagged this PDF. While no scripts were explicitly extracted, the presence of an external URI suggests an attempt to redirect the user to a potentially malicious site, likely for phishing or to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://golowaki.ru/123?utm_term=saazish+1975+video+songs
    • https://cdn.sqhk.co/makubeku/fAjgjhk/bike_attack_race_game_motorcycle_stunt_rider.pdf
    • http://dajexori.mypressonline.com/masterbuilt_30_digital_electric_smoker_recipes.pdf
    • http://midarujiwuvi.mygamesonline.org/manly_p_hall_secret_teachings_of_all_ages_readers_edition.pdf
    • https://cdn.sqhk.co/bunewonu/ygfa4hc/revadujotojagebejunij.pdf
    • https://cdn-cms.f-static.net/uploads/4500429/normal_60341cfc8d90a.pdf
    • https://cdn.sqhk.co/moxibusas/ibBKjgh/buwekexiwup.pdf
    • http://nibakelenixezas.getenjoyment.net/wahl_clipper_guards_size_12.pdf
    • http://fagumawegoleleb.mypressonline.com/kedegaturawopojumatubave.pdf
    • https://cdn-cms.f-static.net/uploads/4366031/normal_601bb65c68721.pdf
    • https://cdn.sqhk.co/sopiloroda/ijjeuha/school_of_dragons_online_generator.pdf
    • https://cdn.sqhk.co/vuramufef/Q2jjk0V/mofuxusevomabazonidop.pdf
    • https://static.s123-cdn-static.com/uploads/4444110/normal_5ffec073e2f7d.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://11627308-8c8f-4f08-99ed-0ad85160907d.filesusr.com/ugd/682d1c_75699e143da64598ada1d587644afbb3.pdf?index=true
    • https://fc06435f-e709-4c80-b59d-96fa470c1a13.filesusr.com/ugd/bdc04d_a4a3957c509c46148330905c38261868.pdf?index=true
    • https://uploads.strikinglycdn.com/files/5e965de5-1fa7-4905-9c78-c57b1afd98b9/40498743031.pdf
    • https://8ed7b8cb-9bae-4def-ad9b-66b28cd11f91.filesusr.com/ugd/740d8c_30b81cca694e4cac85c8e6ff860b1d67.pdf?index=true
    • https://63995da9-74be-4895-8497-a4fa53c9845d.filesusr.com/ugd/788c84_6599f95b716548a3b74fc3047c39a645.pdf?index=true
    • https://uploads.strikinglycdn.com/files/e18c9a15-5556-40e7-9f15-42878d9a07e5/accu_chek_compact_plus_gt_test_strips.pdf
    • http://wovibojo.onlinewebshop.net/gidosewoxakotorabuliru.pdf
    • https://d6d3a1c5-32ce-46e9-ae92-c5b8d84d65d9.filesusr.com/ugd/a3b54b_89b5c310bf6c4621b5cf4b3329e32c24.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_off0000f57d.bin
05e5af5af64b806509a46f18a4bfd77e69fff0fccd385bcaa2bd20945b595a6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF57D 5292 bytes
font_01_sfnt_off0001077e.bin
500219c5d49955200e768a281d7fde8e3aa231b45870513d57ea3ffb3afd7faf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1077E 11424 bytes
font_02_sfnt_off00012e20.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12E20 4324 bytes

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