PDF malware analysis — malicious · 7c9810101a556d65

MALICIOUS

PDF

78.9 KB Created: 2021-03-20 05:00:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10

MD5: 0ccefc2f94f5205db2114de09c2c1f1f SHA-1: 562a780ceb0f97eece974d069aa407494fc97087 SHA-256: 7c9810101a556d65e6117a4d0829d34b63d60eac43d4f1d729c75c02ff0737e0

224 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file was flagged by multiple heuristics and ClamAV as malicious, indicating it is likely a phishing or trojan delivery mechanism. The presence of a large number of external links, including one pointing to 'seumenha.ru', suggests an attempt to redirect users to malicious websites. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document may be instructing users to open a password-protected archive, a common tactic to bypass security scans.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 8

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.
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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://seumenha.ru/strik?utm_term=what+are+fedex+customer+service+hours PDF link annotation
- https://cdn.sqhk.co/jikikavadaja/iejdf8v/66780311529.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387704/normal_5fe8f13e08181.pdfIn PDF document text
- https://geridaradekod.weebly.com/uploads/1/3/1/4/131437552/ralilukumozokaneva.pdfIn PDF document text
- https://cdn.sqhk.co/xanovika/Ivgg6Gv/lifuzevexelabamug.pdfIn PDF document text
- https://mijevofere.weebly.com/uploads/1/3/1/6/131606011/titarurigifozil.pdfIn PDF document text
- https://cdn.sqhk.co/loxufore/ji5Cyhg/android_one_or_miui_9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4482619/normal_604cd357b2576.pdfIn PDF document text
- https://tadeliganunuzax.weebly.com/uploads/1/3/0/9/130969808/4a520ef2265fe.pdfIn PDF document text
- https://cdn.sqhk.co/nazixasinuti/Riaohg8/centrist_political_compass.pdfIn PDF document text
- https://tifedagarowab.weebly.com/uploads/1/3/4/6/134641562/dunejibubuv.pdfIn PDF document text
- https://vamalogobiw.weebly.com/uploads/1/3/4/6/134696595/fojabasor.pdfIn PDF document text
- https://venubitolaxi.weebly.com/uploads/1/3/4/3/134372432/ad5a96da4.pdfIn PDF document text
- https://nerupeke.weebly.com/uploads/1/3/1/4/131483009/1795645.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375080/normal_6047a0afb1116.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/vufupu/21096458422.pdfIn PDF document text
- https://s3.amazonaws.com/gonasidupij/padefevizatudadolafazaxi.pdfIn PDF document text
- https://s3.amazonaws.com/varolexexus/nipegepalokazanapim.pdfIn PDF document text
- https://s3.amazonaws.com/bezutu/parrot_conference_bluetooth_speakerphone.pdfIn PDF document text
- https://s3.amazonaws.com/fogibi/16998832815.pdfIn PDF document text
- https://s3.amazonaws.com/kisimujuk/kudomonovoxopegituba.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f5df.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF5DF	5372 bytes
SHA-256: `d088aa4ce8baceaae1cf907b3dc63d925bbaa320ca974bf9b3bcac4ba82d7097`
`font_01_sfnt_off0001080a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1080A	11300 bytes
SHA-256: `7839ac75b803e81e4dd1dbcb6b20cabb87ef87da0c3b751d5777a09c57171e60`

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