Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6778d1980a99700…

MALICIOUS

PDF

93.7 KB Created: 2021-01-16 13:19:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 2502090c1fb57c079b1dfca730196f00 SHA-1: 90ffa4d38a75a53d6ad0bb54fa8614b7bf65888b SHA-256: e6778d1980a99700bd6d4f3ffcc6c1ff9dd644dca094fe327b247bfa6be45d05
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of numerous external links, including one to 'trafffi.ru', suggests it is part of a phishing or malware distribution scheme. The heuristic 'SE_DOWNLOAD_BUTTON' further supports the idea that the document is designed to trick users into downloading a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

Heuristics 6

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://trafffi.ru/aws?utm_term=bazaar+movie++480p PDF link annotation
    • https://site-1219602.mozfiles.com/files/1219602/cavatina_sheet.pdfIn PDF document text
    • https://site-1248811.mozfiles.com/files/1248811/razajisudowalumazavoxipak.pdfIn PDF document text
    • https://site-1083549.mozfiles.com/files/1083549/kemorofupapewiwegawaniju.pdfIn PDF document text
    • https://site-1168414.mozfiles.com/files/1168414/bakonelixenunutovoneraxul.pdfIn PDF document text
    • https://site-1168115.mozfiles.com/files/1168115/guidebook_synonym_noun.pdfIn PDF document text
    • https://site-1208496.mozfiles.com/files/1208496/process_of_coelom_formation.pdfIn PDF document text
    • https://site-1172776.mozfiles.com/files/1172776/buvigejujazojobirege.pdfIn PDF document text
    • https://site-1173361.mozfiles.com/files/1173361/98118853962.pdfIn PDF document text
    • https://site-1200561.mozfiles.com/files/1200561/1565658323.pdfIn PDF document text
    • https://site-1190639.mozfiles.com/files/1190639/sisivijironujudixaluxuxu.pdfIn PDF document text
    • https://cdn.sqhk.co/pizokifuxe/DRijijl/compress_mac.pdfIn PDF document text
    • https://site-1185553.mozfiles.com/files/1185553/fidoful.pdfIn PDF document text
    • https://site-1177754.mozfiles.com/files/1177754/jixutelajimixudakonutumud.pdfIn PDF document text
    • https://cdn.sqhk.co/firokizita/fgfhe3e/cbse_grade_11_business_studies_textbook.pdfIn PDF document text
    • https://site-1176410.mozfiles.com/files/1176410/folozeva.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://scripts.sil.orgThisIn PDF document text
    • http://www.fontrix.comhttp://www.nhncorp.comIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://s3.amazonaws.com/sisaxu/brominating_alkenes_post_lab_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/81052701828.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
    • http://scripts.sil.org/In PDF document text
    • http://scripts.sil.org/OFLAbyssinicaIn PDF document text
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e16a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE16A 5336 bytes
SHA-256: d898ec4b4e18b89f8565fcaa846dedae5b9f0ed690da9c5c1e68442aa864a7e1
font_01_sfnt_off0000f38d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF38D 20968 bytes
SHA-256: aa890c11d31957efca0fd402aa72a454fd9b4193136962196ca6c8da92cd1596
font_02_sfnt_off000113bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113BD 3720 bytes
SHA-256: 6539b129c5cd894636dc8f40f53a156c00c8f46378ab4f137c96d687a1cff6ed
font_03_sfnt_off00011f1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F1B 2276 bytes
SHA-256: 04d00fe4d3d1cfb13f6c45ea00a1a16b92fe51d00c0709aca980b96f225372d0
font_04_sfnt_off000128e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x128E8 11884 bytes
SHA-256: 4d70dcecb6d27ed714c9d4340f84b1d5d40080e5456306f93de2d8a042d962e3
font_05_sfnt_off00014ebc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14EBC 2056 bytes
SHA-256: 2e46b36fed23876ebb6e11f7a152916482bd8967c060a582f04975efc8a71266
font_06_sfnt_off000157af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x157AF 3760 bytes
SHA-256: 2d91202cf6136e187bf6c449e4627904f5fc78814e31b544020d5d6cfed33858

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