MALICIOUS — 584827a3e50d44ad688b840b0bd7dd1fd1c42276b8c42a0dd52ddd5afd20b336

MALICIOUS — 584827a3e50d44ad688b840b0bd7dd1fd1c42276b8c42a0dd52ddd5afd20b336 is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (95/100). 4 of 53 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

SHA-256: 584827a3e50d44ad688b840b0bd7dd1fd1c42276b8c42a0dd52ddd5afd20b336
SHA-1: f33c05844f60c9c5864159416d595b35f27537e0
MD5: 151f32c64d7a5e8846e8ca72b450a592
ssdeep: 1536:EIUkJxYmRNObp5/dFCWBEYiRAWCpOVit4VudDW+Ek650mUtBQL2w:jbObXF/EY6RVit0udPcLyBQJ
TLSH: T11737C0F72147DE8C778B9F436DEA206CA486C7486121E62095C87AACC47C9BEFF00651
Submitted as: 584827a3e50d44ad688b840b0bd7dd1fd1c42276b8c42a0dd52ddd5afd20b336
File type: pdf · Size: 73249 bytes
Verdict: malicious (95/100)

Detections (4 of 53 engines)

MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
ClamAV (daily): Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
Emsisoft (Emergency Kit): PDF.Spam.Heur.1
Kaspersky (KVRT): HEUR:Hoax.PDF.Phish.gen

MITRE ATT&CK

T1105

Why this verdict

The malicious score of 95/100 is the fusion of 6 weighted signals:

ClamAV (daily) flagged Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 (rule Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0) - engine signal, weight 0.90, confidence 0.95
Contacted 13 external host(s) at runtime (4 HTTP) - network signal, weight 0.40, confidence 0.80
Embedded network infrastructure: https://inwebjor.ru/uplcv?utm_term=sight+reading+exercises+pdf, https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3ccd9c060---66874645707.pdf, https://singaporenotarypublic.com/wp-content/plugins/super-forms/uploads/php/files/254788f52d89a401d1547d0424a4d094/43509731122.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)

9668 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
ntp.ubuntu.com
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
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
250.255.255.239.in-addr.arpa
http://www.msftconnecttest.com/connecttest.txt
http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
http://rb.symcb.com/rb.crl

Dropped files

C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt - ac7436a5f8c01c643108d9adc10ebb1df3afb8f054f7663d8e3240ea6bbd7150
C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\c42d2c01d8f6d0b56e37219e41e631ba.png - ef73e9b2ea6b9f90c0efe1cab8e1007b526754942faffb241180c2aa42be05d9
root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

https://inwebjor.ru/uplcv?utm_term=sight+reading+exercises+pdf
https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3ccd9c060---66874645707.pdf
https://singaporenotarypublic.com/wp-content/plugins/super-forms/uploads/php/files/254788f52d89a401d1547d0424a4d094/43509731122.pdf
http://pro.ovh.net/~tribuene/images/banque/file/musosijonedipapowevenaw.pdf
http://semot.com/Store/userfiles/file/pesaze.pdf
http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae0af159f23---kodakuxadoboviwol.pdf
http://plkorea77.com/ckupload/files/46610323730.pdf
http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608da1b96a55c---girukesepujov.pdf
https://electrabicycles.pl/app/webroot/uploads/file/1629932600271.pdf
http://www.pilatesyoga.hr/files/files/93029137418.pdf
https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607e3688819ea---14489974502.pdf
http://www.jindatunnel.com/up_files/file/jimitupikuvipomorupevipu.pdf
https://accesoriosalmayor.com/images/userfiles/file/pinefovajirelevujotejixus.pdf
http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/sbb81vt4epaq3adskuarav2moa/sozerenilidu.pdf
http://gediklimakinahidrolik.com/resimler/files/bazan.pdf
http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b00d2c9bef9---516814283.pdf
https://humicdp.com/uploads/2021-06-30/images/files/jujepijabiwediwefo.pdf
https://eminenceconstruction.ca/viking1/uploads/files/luvivo.pdf
https://securitegenerale.tn/userfiles/file/50729237619.pdf
http://slabowidzacy.smprzemysl.pl/ckfinder/userfiles/files/8971441368.pdf
http://newkontakt.ru/userfiles/images/file/suvivowuvuwuraveg.pdf
http://www.martiusstaden.org.br/js/ckfinder/userfiles/files/88461834487.pdf
http://www.w3.org/1999/02/22-rdf-syntax-ns#
http://purl.org/dc/elements/1.1/
http://ns.adobe.com/pdf/1.3/

Embedded domains

inwebjor.ru
reifenscho.de
singaporenotarypublic.com
pro.ovh.net
semot.com
www.viksexteriors.com
plkorea77.com
www.tsssport.com
electrabicycles.pl
www.kiteschule-kiel.de
www.jindatunnel.com
accesoriosalmayor.com
pocatellocampfire.com
gediklimakinahidrolik.com
jeugdopdewetenschapsagenda.nl
humicdp.com
eminenceconstruction.ca
slabowidzacy.smprzemysl.pl
newkontakt.ru
www.martiusstaden.org.br
www.w3.org
purl.org
ns.adobe.com
www.pilatesyoga.hr
securitegenerale.tn

Embedded IP addresses

20.247.184.197
52.110.12.38
85.210.196.11
4.230.171.124
13.89.179.15
135.232.92.137
52.123.129.14
40.104.4.2
52.123.252.244
72.154.7.105
203.26.79.13
74.178.240.61
52.148.114.188

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report