MALICIOUS — a83af8b8463b4d4457ee6c2bc81cf5c8c8b591be3414f3b066fd842a25970f0a
MALICIOUS — a83af8b8463b4d4457ee6c2bc81cf5c8c8b591be3414f3b066fd842a25970f0a is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (98/100). 4 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
a83af8b8463b4d4457ee6c2bc81cf5c8c8b591be3414f3b066fd842a25970f0a - SHA-1:
cac703a1b7c6d938463b5a226f95ecc49b89e9e8 - MD5:
198a998d2ab3b861daed692fb1a8bed1 - ssdeep:
1536:rcWnk2KugcMlqrYz9GxPQztRJ+cYZ+FaMywRe3qWkNpOPCGM7TilWeCG0g+S0STJ:AwrKTIrYJIPQjVm+wRYefPknihCzg+m - TLSH:
T18638C0F360CBDD9CB38B8F4365661199A086D3C82262EF8454CC7B5C90AC9BE7E54491 - Submitted as: a83af8b8463b4d4457ee6c2bc81cf5c8c8b591be3414f3b066fd842a25970f0a
- File type: pdf · Size: 80908 bytes
- Verdict: malicious (98/100)
Detections (4 of 53 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- ClamAV (daily): Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
- Kaspersky (KVRT): HEUR:Hoax.PDF.Phish.gen
MITRE ATT&CK
Why this verdict
The malicious score of 98/100 is the fusion of 8 weighted signals:
- ClamAV (daily) flagged Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 (rule
Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0) - engine signal, weight 0.90, confidence 0.95 - Memory forensics: 3 finding(s), e.g. RWX/private injected region in SumatraPDF.exe (pid 8420) (rule
windows.malfind.Malfind) - memory signal, weight 0.60, confidence 0.85 - Contacted 16 external host(s) at runtime (8 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded link rated suspicious by URL analysis: http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614c6b46cf149---luguzisibugex.pdf - network signal, weight 0.40, confidence 0.60
- Embedded network infrastructure: https://inwebjor.ru/uplcv?utm_term=recover+unsaved+changes+word+document, http://pegasomeeting.medcoast.net/ckfinder/userfiles/files/65708083354.pdf, http://di-tech.kr/fckeditor/userfiles/file/98635896301.pdf - static signal, weight 0.35, confidence 0.60
- Document active content: uri-action - static signal, weight 0.30, confidence 0.60
- Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
- Extracted generic config (20 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9669 behavior events · 0 ATT&CK techniques · 3 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- desktop-hsgcbep
- b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 252.0.0.224.in-addr.arpa
- 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 255.255.254.169.in-addr.arpa
- 79.243.254.169.in-addr.arpa
- ntp.ubuntu.com
- 250.255.255.239.in-addr.arpa
- http://www.msftconnecttest.com/connecttest.txt
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
e5d3587b867a886631591da0673fc5510976525b8ad342a8a83e250003dbde29 - C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\ecbd2e8c3392efa710921ad7b965b2e6.png -
f78fb1b644cb72aa95dc6a68fde98e51f90d2da05474a7e63b55e070026b7233 - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://inwebjor.ru/uplcv?utm_term=recover+unsaved+changes+word+document
- http://pegasomeeting.medcoast.net/ckfinder/userfiles/files/65708083354.pdf
- http://di-tech.kr/fckeditor/userfiles/file/98635896301.pdf
- https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/16156a5e285ead---96826173436.pdf
- https://mahanakhon.pacedev.com/ckupload/files/pipupazig.pdf
- http://xueyuan.zlyxgw.com/uploads/ckeditor/files/20210922170003.pdf
- https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/4d19ebf2eda719a2855730c9b39eda89/vavarebaduwijewumodoxal.pdf
- http://richardchong.com/userfiles/files/1697147631.pdf
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614c6b46cf149---luguzisibugex.pdf
- http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/54645797246.pdf
- http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/161329d0337701---14487689298.pdf
- https://dortmundpools.com/contents/files/pidirolega.pdf
- https://ccs-corporation.com/ckfinder/userfiles/files/xidusamunowunofesubiruda.pdf
- https://strechybenesov.cz/content/dawezimafujomogufenodisi.pdf
- http://internet-trade.cz/UserFiles/file/todudupasukoga.pdf
- https://stcc-sa.com/motakamel/Ups/files/giromabapevaj.pdf
- http://nwatchonline.net/userfiles/file/24223118120.pdf
- http://exmar.it/foto_fck/file/75319814646.pdf
- http://poongdung.com/FileData/ckfinder/files/20210904_CDB90C63ABEA969C.pdf
- https://ichapps.com/ichapps/ckeditor-ckfinder-integration/uploads/files/16646809694.pdf
- https://drhuanghair.com/uploads/files/202109140452502970.pdf
- http://provia-events.de/pics/fotos/1/file/voberepuvuseg.pdf
- http://vasset.bg/userfiles/file/govozobeduvowojitadelute.pdf
- http://hotelrealerimini.it/userfiles/files/32985032463.pdf
- https://www.newhorizonscrisiscenter.org/ckfinder/userfiles/files/tibilajukidumivujilokan.pdf
Embedded domains
- inwebjor.ru
- pegasomeeting.medcoast.net
- di-tech.kr
- ncfouting.com
- mahanakhon.pacedev.com
- xueyuan.zlyxgw.com
- amartzon.store
- richardchong.com
- www.guaitoli.eng.br
- www.laterveer-biesenbeek.nl
- www.fotografoeventimilano.com
- dortmundpools.com
- ccs-corporation.com
- stcc-sa.com
- nwatchonline.net
- exmar.it
- poongdung.com
- ichapps.com
- drhuanghair.com
- provia-events.de
- hotelrealerimini.it
- www.newhorizonscrisiscenter.org
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 20.89.1.8
- 135.232.92.137
- 4.150.223.109
- 52.230.60.54
- 172.215.188.232
- 4.230.171.124
- 74.179.77.164
- 20.112.250.133
- 52.123.128.14
- 20.165.94.46
- 57.154.63.210
- 203.26.79.13
- 92.223.78.30
- 4.150.223.102
- 4.209.250.170
- 142.251.42.99
Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report