Malicious PDF — malware analysis report

Static analysis result for SHA-256 9495211c4465b801…

MALICIOUS

PDF

195.4 KB Created: 2021-06-14 19:54:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 18dac071fc2c01ae0ad68f13e9df8190 SHA-1: 6c161ac1d5849381f6c730ad5db39a61e1509dcc SHA-256: 9495211c4465b80199af2aacb12a8c33a62a9f9ac8e6bc1f9d5c90b2ddf8dd37
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9406

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://pixomot.ru/pbw?utm_term=android+11+redmi+9t PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4386618/normal_6019a9c23962e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477916/normal_605fb7564c92c.pdfIn PDF document text
    • https://litaxavuve.weebly.com/uploads/1/3/4/8/134848922/cb72ea927.pdfIn PDF document text
    • https://sogazefod.weebly.com/uploads/1/3/4/0/134000298/37a4a5.pdfIn PDF document text
    • https://vasuxuduka.weebly.com/uploads/1/3/4/3/134322555/d0a54eb6af5eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368984/normal_603b2c6dbdcaf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411479/normal_5fe160101611a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://kapetipubi.pbworks.com/w/file/fetch/144425955/alif_laila_sindbad_episode_19.pdfIn PDF document text
    • http://zuwuzemoj.pbworks.com/f/59330874300.pdfIn PDF document text
    • http://joxakuruvi.pbworks.com/f/vepalotanurotaxaxax.pdfIn PDF document text
    • http://xereledo.pbworks.com/w/file/fetch/145007139/science_guide_for_class_10_sura.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b8b1baf-9243-4dad-9edf-ebe7c1124529/united_states_army_logo.pdfIn PDF document text
    • http://zuxanuj.pbworks.com/f/two_irrational_numbers_between_786_and_787.pdfIn PDF document text
    • http://mojuseraneno.pbworks.com/f/63492038965.pdfIn PDF document text
    • http://gufabewa.pbworks.com/f/black_friday_75_inch_tv_deals_2019.pdfIn PDF document text
    • http://vevokofeju.pbworks.com/f/nifadokaxivedalo.pdfIn PDF document text
    • http://suwoluran.pbworks.com/f/27420397602.pdfIn PDF document text
    • http://kunozulig.pbworks.com/f/gor_banjara_dj_naa_songs_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a72ac50-5c98-4c14-b82c-4fc1f2aca8a9/what_is_administration_by_different_scholars.pdfIn PDF document text
    • http://ruwezebom.pbworks.com/f/how_to_set_up_a_sprint_sim_card.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26be964a-81b9-483a-a04a-e6be5fe9ba5d/alesis_dm5_pro_kit_with_surge_cymbals.pdfIn PDF document text
    • http://wenitudodub.pbworks.com/f/how_to_register_fl_studio_12_with_reg_key.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002545e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2545E 6440 bytes
SHA-256: 3d4760ca295192c89086870ebbac49c5a5945404ea6ab57fca452cf2db5f569a
font_01_sfnt_off00026422.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26422 15216 bytes
SHA-256: 7484792d698360a3dd082a0041611a3aab961ff77dcf0e89e82c87bb1d78fde6
font_02_sfnt_off000294d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x294D8 4536 bytes
SHA-256: 234dca656315cc8048a1b639bd5c711074a5b450ac3bdb9c64048a7260473338
font_03_sfnt_off0002a42c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A42C 17708 bytes
SHA-256: 5fc765db5a6f8313c1343ed82b94496e2d4651cb9b8f0cff95f3d6b4ef8b339f
font_04_sfnt_off0002db76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DB76 16036 bytes
SHA-256: 52db30b66cfb76898988bc7c6ed152514c301740808ab95bec9c68e49df23550
font_05_sfnt_off0002efde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EFDE 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3