PDF malware analysis — malicious · 7f208215653c96d6

MALICIOUS

PDF

61.3 KB Created: 2021-03-14 21:44:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 528793c2f1323d76e6aa96db606870c6 SHA-1: b74d9837d59585dd2145a00a1c4bf12486411756 SHA-256: 7f208215653c96d6ce9e03d1a014c718aefa0042fe1b7bc78abb7750371ae39c

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external links, suggesting it is part of a link farm or SEO scam designed to drive traffic to malicious websites. The ClamAV detection and ML classifier indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the PDF structure itself is indicative of malicious activity.

Machine Learning

Nyx PDF Classifier malicious score 0.7606

Heuristics 4

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
External URI info PDF_URI

PDF contains an external URL action
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://mezovuduw.ru/award?keyword=absorption+chiller+working+principle+pdf
- https://jibanexoruna.weebly.com/uploads/1/3/5/3/135338247/voravax-bonixewevarimi-vixisa-bikuzoxagaf.pdf
- https://cdn-cms.f-static.net/uploads/4372682/normal_5fe7809b3bb26.pdf
- https://xedagiwaki.weebly.com/uploads/1/3/1/8/131856626/ab929.pdf
- https://nodararikerat.weebly.com/uploads/1/3/4/8/134885074/5682695.pdf
- https://cdn-cms.f-static.net/uploads/4462976/normal_5fe6f8e81b727.pdf
- https://ninofupefuf.weebly.com/uploads/1/3/1/8/131856131/429e4.pdf
- https://jipuziloki.weebly.com/uploads/1/3/2/6/132695969/xatodipuriruzup-wasej-mizimi-larel.pdf
- https://fezipogapatud.weebly.com/uploads/1/3/4/8/134888370/devibemil.pdf
- https://gikanusubidi.weebly.com/uploads/1/3/4/7/134756500/soxedivodusa-lezofetasisu.pdf
- https://dudakodut.weebly.com/uploads/1/3/4/4/134497067/gumanag.pdf
- https://wesotapaxo.weebly.com/uploads/1/3/4/4/134488604/2289854.pdf
- https://tatasabazenaxaj.weebly.com/uploads/1/3/2/6/132695883/zabibizi-xugosefadu-sizuket-wedegefusotikex.pdf
- https://zofifonanofanap.weebly.com/uploads/1/3/4/8/134876640/vazafumivekosibi.pdf
- https://cdn-cms.f-static.net/uploads/4384483/normal_602e66b46c15d.pdf
- https://rotolakudezi.weebly.com/uploads/1/3/4/0/134041133/741485.pdf
- https://dopotalufiru.weebly.com/uploads/1/3/4/6/134601398/bavakolulosesag.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/6ab5132b-117f-4857-aa1c-2c19a60dd49f/what_is_batch_operating_system_with_example.pdf
- https://uploads.strikinglycdn.com/files/8bd83055-18b5-4a4d-bde7-adea3b1b3c24/1768917776.pdf
- https://0503187d-52cd-4237-9521-a3cb9bf551ae.filesusr.com/ugd/5bb01c_2d423e2fbae143fabd73d6e28bba50ba.pdf?index=true
- https://2c9641c8-5874-4869-9b94-f1378e60aa6b.filesusr.com/ugd/efc1f6_f5071949cca14ef0a6b576b19436f42f.pdf?index=true
- http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e7cb.bin` `38158d0b7f70395b983f206f448bdf93fa09f4242e53ee4db07101e6a9c27086`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE7CB	5492 bytes

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