MALICIOUS — b6ec9b198b71e8b3fe152f4c229f0ae494efcd1e8c9b19c21355267cd74d9152

MALICIOUS — b6ec9b198b71e8b3fe152f4c229f0ae494efcd1e8c9b19c21355267cd74d9152 is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (96/100). 4 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

SHA-256: b6ec9b198b71e8b3fe152f4c229f0ae494efcd1e8c9b19c21355267cd74d9152
SHA-1: 283a41a27726b1375f2b06ebd0ed568c3944f439
MD5: d23c147de71f17ff242178e0cb94f475
ssdeep: 3072:4tfkXcIyHMX7HzGnJZzaZ2FY0DxEce0G:4qXZX3wWLx
TLSH: T11C3ADFF312DBCD5CB5CA9F03A9A914ACA181E7C82032EBA051C8767CD5BC0FD6E55A10
Submitted as: b6ec9b198b71e8b3fe152f4c229f0ae494efcd1e8c9b19c21355267cd74d9152
File type: pdf · Size: 98559 bytes
Verdict: malicious (96/100)

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 96/100 is the fusion of 7 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
Contacted 14 external host(s) at runtime (4 HTTP) - network signal, weight 0.40, confidence 0.80
Embedded link rated suspicious by URL analysis: http://fkjz.cn/upload/files/2021/09/202109172156304606.pdf - network signal, weight 0.40, confidence 0.60
Embedded network infrastructure: http://video-cycling.de/files/file/vavatibamudakinopafig.pdf, https://rabudiagnostic.com/userfiles/files/45242227561.pdf, https://podiummagazinenews.com/ckfinder/userfiles/files/fenakudazukuvilomu.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 (19 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30

Dynamic analysis (windows)

9659 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
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
252.0.0.224.in-addr.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
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
ntp.ubuntu.com
http://www.msftconnecttest.com/connecttest.txt
http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
http://rb.symcb.com/rb.crl
http://203.26.79.13/filestreamingservice//files/fa5c4269-9d03-4a47-8d97-be6931f0b22c/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
http://203.26.79.13/filestreamingservice/files/fa5c4269-9d03-4a47-8d97-be6931f0b22c?P1=1787932897&P2=404&P3=2&P4=IjSWwHPFswddUsk1Jk%2bQm%2boLtNy1xgw8bDpKW7EI6tzhaxxfDDkdikDy%2bjvm0ZshOyr1PSndgFLaxPDyAKzPgA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com

Dropped files

C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt - 0b3aafe5fe53099c51fc5d0b1ebb2fa9b65336a2d928a2a3fa51855f2c9cd451
C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\4eb15a2425a602c12f33cb56322e0a19.png - 6b85ead363d1c872f370c309f14c038320f6cd74510868faa6603bd9d28bc401
root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

http://feedproxy.google.com/~r/Xvkpad/~3/vItLtdF7Pec/uplcv?utm_term=cavalry+southern+cross
http://video-cycling.de/files/file/vavatibamudakinopafig.pdf
https://rabudiagnostic.com/userfiles/files/45242227561.pdf
https://podiummagazinenews.com/ckfinder/userfiles/files/fenakudazukuvilomu.pdf
https://medbillings.us/lightspeedweb1/file/bekufofomi.pdf
http://www.lovebliss.tw/UserFiles/files/jozuvanixoduvigurufopig.pdf
http://gerastar.com/userfiles/file/xenuxatibuzarofesusur.pdf
http://fkjz.cn/upload/files/2021/09/202109172156304606.pdf
http://bortran.com/upload/image/file/20210924123617.pdf
https://sunsoftinfoway.net/ckfinder/userfiles/files/21634304171.pdf
http://music-saikung.com/ckfinder/userfiles/files/42488673688.pdf
https://inprovitbolivia.com/ckfinder/userfiles/files/rukomopowuwaxu.pdf
https://pilot-nav.com/ckfinder/userfiles/files/lofuzopoguxukolivazopaku.pdf
http://khangvietdn.com/uploads/file/93408367688.pdf
http://aven.su/userfiles/file/87813579561.pdf
http://eko-gospodarstwo.eu/files/file/julipilexulinojubafimam.pdf
https://familienbilstrup.dk/userfiles/file/67471853161.pdf
http://generaldistco.com/images/file/dodamuzolexiziwawuv.pdf
https://luminex.pl/upload/file/gutunusukipoda.pdf
http://synphabase.ch/upload/file/36032689684.pdf
http://arhive.np-sp.ru/img/file/dudofefos.pdf
http://k12kos.com/ckfinder/userfiles/files/sidumonabesu.pdf
http://tentauto23.ru/ckfinder/userfiles/files/29383045943.pdf
http://micronforgacsolo.hu/UserFiles/file/xizipusiv.pdf
http://zzfcw.com/file/fkimg/file/dumatorifikasowesiwiler.pdf

Embedded domains

feedproxy.google.com
video-cycling.de
rabudiagnostic.com
podiummagazinenews.com
medbillings.us
www.lovebliss.tw
gerastar.com
fkjz.cn
bortran.com
sunsoftinfoway.net
music-saikung.com
inprovitbolivia.com
pilot-nav.com
khangvietdn.com
aven.su
eko-gospodarstwo.eu
generaldistco.com
luminex.pl
synphabase.ch
arhive.np-sp.ru
k12kos.com
tentauto23.ru
zzfcw.com
www.w3.org
purl.org

Embedded IP addresses

4.150.223.106
51.104.15.253
20.42.65.85
52.110.12.30
4.230.171.124
52.253.84.76
74.178.240.51
135.232.92.137
52.123.128.14
135.233.45.222
135.232.92.34
203.26.79.13
52.123.252.224
135.233.95.144

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report