Malicious PDF — malware analysis report

Static analysis result for SHA-256 214f9f822677ca7b…

MALICIOUS

PDF

90.6 KB Created: 2021-03-05 03:43:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 0005383819d73334601fbaa2834a7946 SHA-1: 30ea736b0251ace71280c5a3c5c5bde582cd823f SHA-256: 214f9f822677ca7b008cfa036aebcbf0a6c413dc77e2657a34728ac8fe319b83
186 Risk Score

Malware Insights

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

The PDF contains a large number of external links, indicating it functions as a link farm. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or distributing further malware. The embedded URLs are the primary indicators of compromise, pointing to potentially malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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.
  • 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://lozipotod.ru/award?keyword=collapse+of+the+republic+pdf+fantasy+flight PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4467273/normal_5fc84c45b89a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388824/normal_60372966dfca2.pdfIn PDF document text
    • https://cdn.sqhk.co/tedubifo/qC2idhj/famous_places_in_afghanistan.pdfIn PDF document text
    • https://petugaxuw.weebly.com/uploads/1/3/5/3/135397026/49f730.pdfIn PDF document text
    • https://jinunezig.weebly.com/uploads/1/3/4/3/134308797/doxapusifowawo.pdfIn PDF document text
    • https://cdn.sqhk.co/titabofasika/djjhcij/unicorn_free_icon_pack_png.pdfIn PDF document text
    • https://cdn.sqhk.co/rujiwujik/agiT9hd/51216507630.pdfIn PDF document text
    • https://cdn.sqhk.co/lolajelor/1yJj839/pinball_machine_suppliers.pdfIn PDF document text
    • https://damanula.weebly.com/uploads/1/3/1/8/131856109/d29969009d3.pdfIn PDF document text
    • https://cdn.sqhk.co/minamojazi/TN0eiFj/93549793863.pdfIn PDF document text
    • https://cdn.sqhk.co/gogefaman/bgdijge/pocket_racing_guide_kiwami.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447251/normal_5fe4054d67fc5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447466/normal_602cf6f2491b0.pdfIn PDF document text
    • https://buxijabis.weebly.com/uploads/1/3/5/3/135329720/5303430.pdfIn PDF document text
    • https://xexigajusotojuz.weebly.com/uploads/1/3/1/6/131606060/516a422dc0638.pdfIn PDF document text
    • https://cdn.sqhk.co/rekutadis/jdWhd2C/17201874919.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://e1bd05e7-a2ed-43df-b5fc-9bc8ee0b1a84.filesusr.com/ugd/08acf3_224af673eee94a118bb67b5aec67a1c8.pdf?index=trueIn PDF document text
    • https://fccd5518-64e1-462d-9dbe-8d8d8a19ca7a.filesusr.com/ugd/eb005d_1bd93bdcb0f04068bf495d95aadd4fcb.pdf?index=trueIn PDF document text
    • https://ecfc1f44-6648-4072-bff5-6ee4adcfbe4f.filesusr.com/ugd/e5a943_2589104b2b9549759df5d93e10625b62.pdf?index=trueIn PDF document text
    • https://a2c67b61-a01d-4053-b7ad-f1487bca8054.filesusr.com/ugd/24853a_519cf68ea0b249ec84e122da51310e76.pdf?index=trueIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001251c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1251C 5564 bytes
SHA-256: 10c6a5828d617296e4d191f7ddcb52dfa8a1104f1a0994ab79590b81389cf30a
font_01_sfnt_off000137fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137FD 11068 bytes
SHA-256: ef4de32ff3d2c7a69fc72ca51c6a85b5ec945bee19390ec5c971c68bcd394eae

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