Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc0431114a1d6566…

MALICIOUS

PDF

88.7 KB Created: 2021-03-23 17:16:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bf02945e038e16db89bf2ee270af66b9 SHA-1: 299c81a5a5fac245de5093e06908d6d6b3e37f27 SHA-256: dc0431114a1d6566206fe034e502fac702c3b0834c83f46a81b4646177649326
136 Risk Score

Malware Insights

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

The PDF contains heuristics indicating an advance-fee scam lure, referencing child protection and parcel delivery requirements. It also embeds an external URI pointing to a suspicious domain, likely intended to lead the user to a malicious payload or phishing page. The ML classifier and ClamAV detection strongly support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://pelibifir.ru/123?utm_term=child+protection+wa+reporting
    • https://cdn.sqhk.co/ninivaxibab/DnhajhF/casual_button_down_shirts_made_in_usa.pdf
    • https://cdn.sqhk.co/nudofarus/hcjj7g8/linen_tablecloths_wholesale.pdf
    • https://cdn.sqhk.co/bidogefapo/ijYphix/11783370954.pdf
    • https://cdn-cms.f-static.net/uploads/4413966/normal_603758fbd8b7a.pdf
    • https://cdn.sqhk.co/jotenitix/itPVDic/53110094829.pdf
    • https://cdn.sqhk.co/kefofepobam/fghjjhc/77512930914.pdf
    • https://static.s123-cdn-static.com/uploads/4480893/normal_60093e9739ed2.pdf
    • https://cdn.sqhk.co/nuvexajamu/chhaeFb/duxiz.pdf
    • https://cdn.sqhk.co/xojurolaruk/icFbljg/koworunifikero.pdf
    • https://cdn.sqhk.co/pawapoma/iFrienc/alone_season_6_winner_gear_list.pdf
    • https://cdn.sqhk.co/xuxiropuwomo/gjihdio/skin_coloured_mole_on_face.pdf
    • https://cdn.sqhk.co/gabunufu/q43jQih/the_room_movie_2015_real_story.pdf
    • https://static.s123-cdn-static.com/uploads/4424349/normal_5fc8d7eb60873.pdf
    • https://cdn.sqhk.co/pavujakorige/2Lqghjh/74762192768.pdf
    • https://cdn.sqhk.co/bezedono/iMZhfwG/49405335376.pdf
    • https://cdn.sqhk.co/vadezewe/cjegea1/38000178665.pdf
    • https://static.s123-cdn-static.com/uploads/4375350/normal_5ff7b578a71e3.pdf
    • https://cdn.sqhk.co/pigevikuwi/jhcijZW/75215510337.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/c7152fdb-26f5-4fec-a5f3-ccea2f98702c/divina_commedia_canto_v_inferno.pdf
    • https://uploads.strikinglycdn.com/files/3d4e6e37-effc-4f8f-bb2c-c0fe6302a563/what_channel_is_newsmax_on_spectrum_charlotte_nc.pdf
    • https://uploads.strikinglycdn.com/files/561eae1b-4151-4f1e-b132-0fe7831c80bd/el_dador_de_recuerdos_online_pelisplus.pdf
    • https://uploads.strikinglycdn.com/files/4185e5c5-41e0-46e7-847f-a106fcec651f/pocket_guide_public_speaking.pdf
    • https://uploads.strikinglycdn.com/files/6a419496-ee86-47b5-9f04-635dbc3c84c9/56758235506.pdf
    • https://uploads.strikinglycdn.com/files/1a045801-de81-4a4b-91ec-28d78d8999cb/what_does_like_terms_mean_in_maths.pdf
    • https://uploads.strikinglycdn.com/files/29a7e59b-0081-44fc-839a-bec0e4aebaaa/boss_dr_880_bedienungsanleitung_deutsch.pdf
    • https://uploads.strikinglycdn.com/files/2e29114b-a414-49c8-9e81-a60bf6ec2dbc/how_to_turn_on_ryobi_trimmer_plus.pdf
    • https://uploads.strikinglycdn.com/files/917d37e3-15ad-48ee-8b10-6013a3c657af/how_to_convert_to_mp3_mac.pdf
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001204e.bin
4e33bffd2593adbb4caa9b1edee670b356e68861fa668eefa13c3d6ced733012
pdf-font-stream PDF embedded font (sfnt) at offset 0x1204E 5156 bytes
font_01_sfnt_off000131de.bin
cce598c0468c283840418a1ef3ad141fb4859247b7eff67f3c38c167187250c4
pdf-font-stream PDF embedded font (sfnt) at offset 0x131DE 10412 bytes