PDF malware analysis — malicious · 01c58b3c1d63f7f1

MALICIOUS

PDF

474.7 KB Created: 2021-03-19 14:52:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22

MD5: 907b0e00f3d7383f6c35e497e4dde45c SHA-1: df97f9c6dde6bea8b5307b9c930ca3693d4c7f78 SHA-256: 01c58b3c1d63f7f14baaa4518a78435f3b80518eda56d37cfec2c007f28757cf

104 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses an urgency-based lure. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.7825

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
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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://nipisod.ru/123?utm_term=tennessee+comptroller+report PDF link annotation
- http://pulalazikirepu.iblogger.org/56473234717.pdfIn PDF document text
- http://jenalosi.iblogger.org/55974374631.pdfIn PDF document text
- http://nakomajuvedina.iblogger.org/kigogir.pdfIn PDF document text
- http://kavuwabu.22web.org/68074273034.pdfIn PDF document text
- http://xenuven.22web.org/inverse_trig_function_worksheet_with_answers.pdfIn PDF document text
- http://setomomenoku.22web.org/coliformes_en_alimentos.pdfIn PDF document text
- http://garowige.iblogger.org/5981872600.pdfIn PDF document text
- http://the-english-temple.com/40623104783ph5vq.pdfIn PDF document text
- http://shoop-fm.ru/rizone_beep_codes_viewer_free8y53t.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/32aa56ba-fc9f-444d-a3fb-d1b2ef1f945b/ncdot_design_build_submittal_guidelines.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/509188aa-d860-476e-af1b-90caef78dcd2/firegiri.pdfIn PDF document text
- https://631ffb88-cf2d-4844-8d6b-9338a1b21cc5.filesusr.com/ugd/d24e6f_17c6e66b85814d9bbfb80661ea360410.pdf?index=trueIn PDF document text
- https://601bead5-a720-4f65-98db-62fe2a42cb91.filesusr.com/ugd/0e52b4_ac20487d2b084f88a0a5f3036e4a6dd0.pdf?index=trueIn PDF document text
- http://nejojofumitob.rf.gd/essentials_of_strategic_management_the_quest_for_competitive_advantage.pdfIn PDF document text
- http://loxototo.epizy.com/xizidu.pdfIn PDF document text
- http://pomukipokap.epizy.com/54041701061.pdfIn PDF document text
- http://xawabaxazulaga.epizy.com/reaction_time_more_funniest_kid_test_answers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/560a0817-1f07-4c6b-a6be-ffff0b247868/google_chromecast_h2g2-42_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/618b073a-c146-4762-809c-a1080ac3c9a6/how_to_use_true_metrix_air.pdfIn PDF document text
- http://zikituxepori.epizy.com/22691942160.pdfIn PDF document text
- https://9849c7ec-8b19-4b81-9a64-db2537ea7c40.filesusr.com/ugd/97b1c0_14212a19f21e406093dbe3a36fe2797f.pdf?index=trueIn PDF document text
- https://aa3bb5c3-2bd4-4791-9e2a-6e31d5009b04.filesusr.com/ugd/60e703_84f33227551b43069e2b9276e94d5249.pdf?index=trueIn PDF document text
- http://rotaduwifomol.rf.gd/66124184564.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0006f09f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6F09F	9504 bytes
SHA-256: `5e6a72c681e271dfee4950a7915b5ab8e52c54ea40bbb017ee0d29fe3d692861`
`font_01_sfnt_off00070a75.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x70A75	4820 bytes
SHA-256: `a66e918aeed123e02c1475cc97869f013e4b6c5c3fef362359788bfab8f0441f`
`font_02_sfnt_off00071ac0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x71AC0	12544 bytes
SHA-256: `8c123cc82272f0d49365e5ae74829b7901671b6537f55ec5cbce78b77ef46c33`
`font_03_sfnt_off00074546.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x74546	16060 bytes
SHA-256: `4ef9506ee11a349461550e6b437e3786686b598308a87786035880d16624999d`

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