Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac456c602b62a683…

MALICIOUS

PDF

110.6 KB Created: 2021-05-23 21:43:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 22a03dc054bfd2b10df2a94d05cbc43d SHA-1: b46014e887f05588880de679194c2ab4ab86c489 SHA-256: ac456c602b62a683cc4792e0bc8e9b50061e96424f92baba31aa7845982f87ed
156 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, a common tactic for phishing or scam operations. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of these links, suggesting an attempt to drive traffic to potentially malicious sites. The presence of a URL related to 'mp3 download djpunjab' further supports a lure-based attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9852

Heuristics 5

  • 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.
  • 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://dugedepap.ru/strik?utm_term=mera+bhola+hai+bhandari+remix+mp3+download+djpunjab
    • https://kuvixajixi.weebly.com/uploads/1/3/1/6/131637850/13e4c5af50b651d.pdf
    • https://sewobefavewekog.weebly.com/uploads/1/3/4/3/134367647/3577269.pdf
    • https://static.s123-cdn-static.com/uploads/4454679/normal_5ff02b78a594a.pdf
    • https://fugofululedu.weebly.com/uploads/1/3/7/5/137515284/1368843.pdf
    • https://dawokopo.weebly.com/uploads/1/3/5/3/135314789/jemewatixug_rifitam_wadelasaneniwov.pdf
    • https://cdn-cms.f-static.net/uploads/4475391/normal_6056f6c265aec.pdf
    • https://tazowodogakog.weebly.com/uploads/1/3/1/4/131437711/togiburipikam.pdf
    • https://cdn-cms.f-static.net/uploads/4421365/normal_605bdc45e7812.pdf
    • https://cdn-cms.f-static.net/uploads/4414682/normal_60296049711d1.pdf
    • https://devanuwi.weebly.com/uploads/1/3/0/9/130969177/ginujegele_sekupul_susubobebumuj_tozodal.pdf
    • https://bopunesarikimar.weebly.com/uploads/1/3/1/4/131453984/4122547.pdf
    • https://vugopese.weebly.com/uploads/1/3/0/7/130739154/jesubukoxoj.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.opentle.org
    • http://www.daltonmaag.com/
    • http://fedorahosted.org/lohit
    • https://uploads.strikinglycdn.com/files/d774f5d2-e61f-4981-9ff0-33868ce37934/kunemamuzumeburopulozejez.pdf
    • https://uploads.strikinglycdn.com/files/abdf6f60-82a7-469c-a1e1-23d260a02758/wegadezuwomarobuzipite.pdf
    • https://s3.amazonaws.com/kesumasaka/suwivikofimulibokix.pdf
    • https://uploads.strikinglycdn.com/files/0cbbf63f-617b-49cd-b026-322bc1eb89c1/22623050992.pdf
    • https://uploads.strikinglycdn.com/files/89c54794-2f99-47ca-9c53-38d7b6cf7ad2/what_flower_represents_god.pdf
    • https://uploads.strikinglycdn.com/files/579ded5b-3f47-4711-9dae-c270ec706045/formato_de_hoja_de_vida_en_word_para_editar.pdf
    • https://uploads.strikinglycdn.com/files/5dbb3dd9-cbb8-488b-bb1a-d855e40b4ceb/do_portable_air_conditioner_leak_water.pdf
    • https://uploads.strikinglycdn.com/files/e3098ad9-777d-4886-84f6-fb944a82c986/what_is_rule_in_math.pdf
    • https://s3.amazonaws.com/fotojipifuzitul/sad_background_music_no_copyright.pdf
    • https://uploads.strikinglycdn.com/files/8ca78887-f1c8-459d-b33c-b35144a5d8c4/fisher_and_paykel_dishwasher_top_drawer_not_working.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/
    • https://savannah.gnu.org/projects/freefont/
    • http://www.gnu.org/licenses/
    • http://www.gnu.org/copyleft/gpl.html
    • http://scripts.sil.org/OFL
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNU
    • http://www.gnu.org/copyleft/gpl.htmRegular
    • http://www.gnu.org/licenses/gpl.html
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 9

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f43e.bin
0eac1552a6a0cc8d6d43e14f5c157d052ff2bf21460314f67a2c213e0a454e63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF43E 6744 bytes
font_01_sfnt_off00010525.bin
2cb0bba2a85ac0d95e5b7f2e8f3e45e5b3331d8d6118be5c005428aac71c9c94		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10525 5368 bytes
font_02_sfnt_off0001173d.bin
b91f3c26f37c28538ed09035cbea6f9221827f1e30b50c452f08cc820bcc167b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1173D 3720 bytes
font_03_sfnt_off00012298.bin
f927ba598253ff9f3c2b546fab8dadaf4514625e88e535817d284d5634511d73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12298 4688 bytes
font_04_sfnt_off00013426.bin
070190071500e4e782f35bfd755afae89b66324ef3097a980fd68c75fb9893f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13426 5852 bytes
font_05_sfnt_off000142e0.bin
271692324501d252c6eb286b1c3bd766245918d6f38e9af357369c8b078cc186		 pdf-font-stream PDF embedded font (sfnt) at offset 0x142E0 11040 bytes
font_06_sfnt_off000168e8.bin
ba92f4a17ccaf96d9b83132e80cc0014c420835dcedb5fba2ff999e9a93197d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x168E8 16480 bytes
font_07_sfnt_off00017f45.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17F45 4324 bytes
font_08_sfnt_off00018d46.bin
10798a3f91f467b4a435de37385ae01add0c33cbee02044f0f98494c2205506a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18D46 8544 bytes

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