Malicious PDF — malware analysis report

Static analysis result for SHA-256 28d2cc6f2de441da…

MALICIOUS

PDF

49.0 KB Created: 2021-03-14 02:26:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ee3e4d54ccf34382762ffebb658b0fc SHA-1: a2eedf8f6a134d397d2b98d2b7d9cfed51e06d4b SHA-256: 28d2cc6f2de441dafd49f52c1686401c3aec5e953f17333bba7a0002cafb7e77
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its image-heavy nature and embedded external links, typical of campaigns aiming to redirect users to malicious sites. The presence of numerous Weebly and other hosted PDF links suggests a link farm used for SEO poisoning or to host further malicious content. Although no scripts were explicitly extracted, the PDF structure and heuristic firings strongly indicate malicious intent, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7209

Heuristics 5

  • 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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 48 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://fokemale.ru/award?keyword=job+application+letter+sample+pdf+free+download
    • https://gupolakeg.weebly.com/uploads/1/3/1/8/131871569/1436221.pdf
    • https://nudojafobedem.weebly.com/uploads/1/3/1/3/131379550/fb10254fca047d.pdf
    • http://laxana.ru/29623621697ob71b.pdf
    • https://cdn.sqhk.co/nakunadubux/biig3vn/airport_scanner_game_wiki.pdf
    • http://workmonster.net/dugojufanulobilamowaub4nm.pdf
    • https://dapinolun.weebly.com/uploads/1/3/4/7/134762022/7320558.pdf
    • https://gavokafiwafez.weebly.com/uploads/1/3/1/3/131381231/142653.pdf
    • https://cdn.sqhk.co/natefisaka/DoSejaU/netimilezogigatuwil.pdf
    • http://kleomaften.online/xeputafesaxitexokosaf6mc9.pdf
    • https://xafituku.weebly.com/uploads/1/3/4/8/134863640/rufaziwewiz.pdf
    • https://vizosajigu.weebly.com/uploads/1/3/1/3/131381839/7787485.pdf
    • https://gedibaforajipet.weebly.com/uploads/1/3/0/8/130874683/2848417.pdf
    • https://cdn.sqhk.co/bedepekemat/fMSc0Vm/idle_online_universe_kongregate.pdf
    • https://nupinegudoxaxu.weebly.com/uploads/1/3/5/3/135350485/fecbe24471c.pdf
    • https://pixipemojawipe.weebly.com/uploads/1/3/4/4/134459682/51a45f6.pdf
    • https://cdn.sqhk.co/gisusisabez/jgr6jfv/zombie_hq_game_download_for_android.pdf
    • https://tujuveduveb.weebly.com/uploads/1/3/1/8/131871390/382883.pdf
    • https://cdn.sqhk.co/modurasisuwu/iigjfgd/ben_10_coloring_book_online.pdf
    • https://fenixezefabiwi.weebly.com/uploads/1/3/4/3/134315005/fisalixez-dilovibi-nabuxovemini-guroxuku.pdf
    • https://d67926d6-99fe-48a4-938f-95006fdf2de6.filesusr.com/ugd/21d82e_ac58c8c59dae41faac8d0145ad6e8e6e.pdf?index=true
    • https://332892e0-6a2b-40ad-946e-e7c92c61c867.filesusr.com/ugd/3e5d97_80dcb6f31c31498497715685d7a67ceb.pdf?index=true
    • https://f3dbd103-cf2f-44fc-b0ad-c9004dc38af2.filesusr.com/ugd/1f2646_f432f12557244c99bb10cab04c5dc3cc.pdf?index=true
    • https://4868a29a-6d77-448d-a9c5-bc5c6a1713c3.filesusr.com/ugd/060e50_914a3b80ba1443cfa5b6c61b89e70b7f.pdf?index=true