Malicious PDF — malware analysis report

Static analysis result for SHA-256 42afb52fa7f52340…

MALICIOUS

PDF

75.2 KB Created: 2021-01-18 10:53:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: c95c3867214c9133ff47fd3f710d7443 SHA-1: 58722aab698b09ab7cc4e3d64521c478d81186bb SHA-256: 42afb52fa7f523404dd0adc3b705223070a4643f1b25bd1ec9b2c416182b2f70
156 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which appear to be part of a link farm designed to attract users searching for game-related content. The primary URL, https://trafficel.ru/wb?keyword=stickman%20army%20the%20defenders%20hacked%20apk, suggests a lure for potentially cracked game software. While no scripts were explicitly extracted, the PDF structure and the presence of numerous external links indicate a phishing or malware distribution attempt, likely leveraging embedded JavaScript for redirection or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://trafficel.ru/wb?keyword=stickman%20army%20the%20defenders%20hacked%20apk PDF link annotation
    • https://lulitetuxopibol.weebly.com/uploads/1/3/1/1/131164377/553145.pdfIn PDF document text
    • https://tebobasuzojipol.weebly.com/uploads/1/3/1/4/131407082/nonepax.pdfIn PDF document text
    • https://kazenoti.weebly.com/uploads/1/3/2/7/132740362/rixof.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408712/normal_5fd165c7db55b.pdfIn PDF document text
    • https://zoveponezewuda.weebly.com/uploads/1/3/0/7/130738822/c2981cbe51e8ae0.pdfIn PDF document text
    • https://gizewafimeferem.weebly.com/uploads/1/3/4/5/134578419/rosav-sumuvat-zuzejawakufopu-wulopidimup.pdfIn PDF document text
    • https://site-1168018.mozfiles.com/files/1168018/where_to_buy_finger_basketball_game_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459791/normal_5fffcd9ecf594.pdfIn PDF document text
    • https://rarikomedos.weebly.com/uploads/1/3/4/6/134616559/5ca95d83.pdfIn PDF document text
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/88bd66a85400a.pdfIn PDF document text
    • https://vejamepune.weebly.com/uploads/1/3/0/7/130776484/4720758.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387566/normal_5f8f753e6bcf2.pdfIn PDF document text
    • https://fegopamaxu.weebly.com/uploads/1/3/4/8/134896151/9212191.pdfIn PDF document text
    • https://site-1167964.mozfiles.com/files/1167964/24060160232.pdfIn PDF document text
    • https://site-1172039.mozfiles.com/files/1172039/dodge_challenger_car_racing_game.pdfIn PDF document text
    • https://site-1180493.mozfiles.com/files/1180493/offroad_jeep_prado_driving_mod_apk.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
    • https://s3.amazonaws.com/kitakilesa/20925699836.pdfIn PDF document text
    • https://s3.amazonaws.com/davawina/full_body_workout_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/definition_of_business_organisation.pdfIn PDF document text
    • https://s3.amazonaws.com/gajejasa/13875635652.pdfIn PDF document text
    • https://s3.amazonaws.com/zonebon/battle_brothers_cheats_money.pdfIn PDF document text
    • https://s3.amazonaws.com/debiwelof/tibia_fibula_labeled.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB33 5312 bytes
SHA-256: eb3fad23c03eb495c4f754e6ff021105fff33fee5aa3a238f1fc1a4cb0b3f3f2
font_01_sfnt_off0000ed12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED12 10544 bytes
SHA-256: 245075a896a31863fffc767e23e279f9cf66c993a332c0101614dd9b4bdd9da6
font_02_sfnt_off00011139.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11139 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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