PDF malware analysis — malicious · aedb058df0d73a56

MALICIOUS

PDF

58.6 KB Created: 2020-12-21 04:58:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 25e3bd123fef1a230bebd4da81703258 SHA-1: 427d2660a53ddd81f5f194d8a1cc22b9fc329118 SHA-256: aedb058df0d73a56423d0aeddaffd8f60704fe5c5c6ab962e99f7bbe3a80ef1b

212 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous embedded links, with several pointing to known malicious redirectors or link farms. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the presence of a link farm suggests an attempt to direct users to potentially malicious content or phishing sites.

Machine Learning

Nyx PDF Classifier malicious score 0.8067

Heuristics 4

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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.
ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://traffmen.ru/aws?utm_term=python+examples+programs+pdf
- https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/bupemigimamuvap.pdf
- https://sibemawiwojaro.weebly.com/uploads/1/3/4/8/134887292/9525250.pdf
- https://fajubixinusejeg.weebly.com/uploads/1/3/4/8/134850070/4761822.pdf
- https://cdn-cms.f-static.net/uploads/4365549/normal_5f87c198a2dfe.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static1.squarespace.com/static/5fcde7fcc190381d6d6305f4/t/5fd6a1a2df2f0204c240d79a/1607901602769/74224781566.pdf
- https://static1.squarespace.com/static/5fc55556bdb33045eedfa18c/t/5fcae4bab6b7366152edb4d8/1607132348873/88343426230.pdf
- https://uploads.strikinglycdn.com/files/14d1f3f9-2c7b-455a-8f51-9c579b7207b0/11419841545.pdf
- https://uploads.strikinglycdn.com/files/9f5a5f78-61b9-41bc-8edd-643ab0bbaca3/5492252642.pdf
- https://static1.squarespace.com/static/5fc5d2deea4a794d56670281/t/5fcd84b39aa2de0c64ab59ea/1607304379290/cheap_eye_contacts_for_astigmatism.pdf
- https://static1.squarespace.com/static/5fc5d7c15e8e827d42afc458/t/5fcf68918b174454e99f3f30/1607428242931/hammer_session_manga_rock.pdf
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd12daeedf074882611d09/1606226651014/hughes_middle_school_dress_code.pdf
- https://uploads.strikinglycdn.com/files/badf45f5-0ce8-4260-8f89-a90a47ce2b00/mit_neuroscience_phd_students.pdf
- https://static1.squarespace.com/static/5fc6e2a348c1673e559972c0/t/5fd16cb1a9eaf43bd8488d1b/1607560371025/choice_of_ninja_full_apk_free.pdf
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe0a899ee0f32b871ae381/1606290060202/fobigokosexexutu.pdf
- http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000cb0c.bin` `09e16933a0ab831d0628b080120b4dc34d3a9b1ab20a16b0d28a8668ff07a9e6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCB0C	5628 bytes

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