Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ba12be01ddea9b9…

MALICIOUS

PDF

77.2 KB Created: 2021-03-23 21:08:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: fb7cf28ad9e4c662e725415ee90e2fbd SHA-1: e256f02f8785e78ae86349bcf2494c5730bbbc84 SHA-256: 7ba12be01ddea9b9bb17c3913be8ca347c84ce6ff47469a63e53b27998b310d1
126 Risk Score

Malware Insights

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

The sample is identified as malicious by ML classifiers and ClamAV, indicating a high probability of malicious intent. The PDF contains numerous external URIs, with a primary one leading to 'lozipotod.ru', suggesting a phishing or malware distribution lure disguised as workout information. Although no scripts were explicitly extracted, the PDF structure and heuristic firings point towards exploitation or redirection to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • 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 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=amrap+workouts+pdf PDF link annotation
    • http://xabidewukolesas.66ghz.com/94257808387.pdfIn PDF document text
    • https://fafidapumexeri.weebly.com/uploads/1/3/1/4/131437561/2761899.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416326/normal_5fe64807accec.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413368/normal_600911e17db2b.pdfIn PDF document text
    • http://itasda.online/664007849725qsn2.pdfIn PDF document text
    • https://lemusudavigi.weebly.com/uploads/1/3/5/3/135395292/suxoxepipegon-gulejowefukipup.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466675/normal_5fe0563a9d4a1.pdfIn PDF document text
    • http://a1metromovers.com/zatomusenumijalap2e505.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471464/normal_601ba8d2e2667.pdfIn PDF document text
    • http://liwojabegeje.iblogger.org/kazutodo.pdfIn PDF document text
    • http://myfoxing.online/8599738380rty3j.pdfIn PDF document text
    • http://upsbox.ru/bujamopevekonexunagamipamzry4c.pdfIn PDF document text
    • https://xavodumofas.weebly.com/uploads/1/3/4/9/134901052/a2c2a8c83d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402501/normal_5feb79056ebb9.pdfIn PDF document text
    • https://jenevokitajawol.weebly.com/uploads/1/3/4/2/134235402/dazep.pdfIn PDF document text
    • https://guwifanifinib.weebly.com/uploads/1/3/2/7/132740319/julizesenokutepibo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xokowire.epizy.com/cloudy_sky_background.pdfIn PDF document text
    • https://s3.amazonaws.com/genijusemu/php_remove_html_tag_string.pdfIn PDF document text
    • http://fonugaxow.epizy.com/acid_base_balance_mcqs.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/2006_honda_odyssey_transmission_fluid_level_check.pdfIn PDF document text
    • https://f421159b-d329-41e8-bc42-072bc93e4c50.filesusr.com/ugd/65d6f7_7fe96205307747658562eeca70d9616f.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/povodijirig/guy_blinking_meme_format.pdfIn PDF document text
    • https://2e96d104-cacc-4af9-914c-411927af6089.filesusr.com/ugd/0f866b_40147c491bc04a6d945881f50e1b3ce6.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/20200922536.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE4B 5300 bytes
SHA-256: f6607f551e417d9d76cb3e08dee66970a7cf99d94301a8bbbc82a943c679392c
font_01_sfnt_off0001004c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1004C 11080 bytes
SHA-256: 395fe18378775fd7d38e1513a484fb4cba6e0434a6a8b88194f7ecab56a742bb

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