PDF malware analysis — malicious · 61a08317f5dcd10d

MALICIOUS

PDF

81.1 KB Created: 2021-04-04 23:33:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14

MD5: c38bcd61f22d94a0af87cd007aff1bda SHA-1: 9ae76f86f4b29c3dd92b32c0278d18f2dc42bbd7 SHA-256: 61a08317f5dcd10dd1968db28dfffb3ee78bfa499d3d8c8d1ff906d823bfe80c

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external links, a common tactic for phishing and scam operations to redirect users to malicious websites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. The embedded URLs suggest the document is part of a link farm designed to drive traffic to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9993

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
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.
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://xezojetit.ru/strik?utm_term=caballo+de+troya+2+audiolibro+voz+humana PDF link annotation
- https://static.s123-cdn-static.com/uploads/4388165/normal_5ff6a9f64f478.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446270/normal_60086c7199c5c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4502248/normal_604e71857bc22.pdfIn PDF document text
- http://tegubija.mypressonline.com/cbt_therapy_for_anxiety.pdfIn PDF document text
- http://lianhua.life/70841419427dpwsv.pdfIn PDF document text
- http://baykamif.space/which_electron_configuration_violates_hunds_rule_the_2s22px22py22pz1pi8c7.pdfIn PDF document text
- http://hellesypakk.online/gilorafovekebnqhom.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4497372/normal_6002e8aa743eb.pdfIn PDF document text
- http://bometaximom.scienceontheweb.net/54438894844.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4376629/normal_5ff69ea8eeac2.pdfIn PDF document text
- http://kerutugizuxig.mygamesonline.org/96997781726.pdfIn PDF document text
- http://vijexibat.mywebcommunity.org/48872962868.pdfIn PDF document text
- http://1-bog.ru/813098490669sbbt.pdfIn PDF document text
- http://lipexifinidoda.scienceontheweb.net/fepake.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4492593/normal_5fde8b53e9fd7.pdfIn PDF document text
- http://datinge.site/pedizirnd9z2.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4402938/normal_5fcc785387487.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4392207/normal_5febfc72c718c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://b8436764-02b3-4471-8711-1e8fed235cf0.filesusr.com/ugd/3b3fbb_6a7f03a771854c7c94ae1ba44574eee8.pdf?index=trueIn PDF document text
- https://9d50af6f-dbf7-41ba-b854-83985329a12b.filesusr.com/ugd/33c377_249a4d7c7e3649e6838e42e387a97cee.pdf?index=trueIn PDF document text
- https://6323cc82-cf72-43ae-bc7a-f8d691a1d37e.filesusr.com/ugd/4f3578_051fdb13aa7442cd91c201888a02f0ad.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
- 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_off0000d4ac.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD4AC	6440 bytes
SHA-256: `705377623a4c4344e02470fedf876d1ed6f0c7c0eac322cafb15afc9430d14bf`
`font_01_sfnt_off0000e4a0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE4A0	5276 bytes
SHA-256: `9d4b6f72299eb70ef08d36320e8cbfabe9f8ab6700d086be640825c3e7369c6d`
`font_02_sfnt_off0000f673.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF673	11736 bytes
SHA-256: `57a7e4b11a44581c622d91fb72b1328ca5ae8d36f8eff9c1b8623c9a004f3e17`
`font_03_sfnt_off00011d17.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11D17	16944 bytes
SHA-256: `32b799ff9947d623cda05c08b786a4272d0ddcc827dc018b7349031717b5707f`

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