MALICIOUS — normal_5f870158ef3ac.pdf
MALICIOUS — normal_5f870158ef3ac.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (82/100). 3 of 53 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
974de6460cb5f218cc5d82814d28add2a55cb09c2b24ccb773dfeff8b3eda72e - SHA-1:
67135e89df6ed937e5e4ec3b250e4b7df708bf42 - MD5:
8c52a34f772e19022179c99ce0e6aee6 - ssdeep:
768:rgGzpDkem40L2TF881Yuf2fVm4KJbgrzj7oqnAVxdGdUAZIqXlPWY/TK:UGFYeUfVm7bgrzvoqAGdDZIklP3/TK - TLSH:
T1A1328EF3109BED8C3A8BAB079CB71569608AC6496237DBA0098C777DD07C5BD7E50860 - Submitted as: normal_5f870158ef3ac.pdf
- File type: pdf · Size: 43321 bytes
- Verdict: malicious (82/100)
Detections (3 of 53 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
- Kaspersky (KVRT): HEUR:Trojan.Script.Generic
MITRE ATT&CK
Why this verdict
The malicious score of 82/100 is the fusion of 6 weighted signals:
- Memory forensics: 6 finding(s), e.g. RWX/private injected region in SumatraPDF.exe (pid 4412) (rule
windows.malfind.Malfind) - memory signal, weight 0.60, confidence 0.85 - Contacted 18 external host(s) at runtime (8 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded network infrastructure: https://cctraff.ru/123?keyword=pwc+guide+to+related+party+transactions, https://site-1038980.mozfiles.com/files/1038980/tagazel.pdf, https://site-1039840.mozfiles.com/files/1039840/kutiwu.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 (16 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9718 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
- 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
- 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
- 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
- ntp.ubuntu.com
- 255.255.254.169.in-addr.arpa
- 79.243.254.169.in-addr.arpa
- http://www.msftconnecttest.com/connecttest.txt
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
67d4ba3acde5d08cd911030cdb3e801e48ed647aa50748bf08a973324dc2ab08 - C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\668e96ca1da6005b4f21e654bf8661c5.png -
869a06026e957112a18f7a3c0d7767ffcb700bc3b37fd0701c755b94b5d3b1c7 - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://cctraff.ru/123?keyword=pwc+guide+to+related+party+transactions
- https://site-1038980.mozfiles.com/files/1038980/tagazel.pdf
- https://site-1039840.mozfiles.com/files/1039840/kutiwu.pdf
- https://site-1038555.mozfiles.com/files/1038555/44214937713.pdf
- https://site-1038970.mozfiles.com/files/1038970/87581045323.pdf
- https://site-1043291.mozfiles.com/files/1043291/mebizeteli.pdf
- https://site-1037821.mozfiles.com/files/1037821/pidixop.pdf
- https://site-1043809.mozfiles.com/files/1043809/modowafugokukavug.pdf
- https://site-1039641.mozfiles.com/files/1039641/94815629048.pdf
- https://cdn.shopify.com/s/files/1/0435/6512/1699/files/does_ross_drug_test_for_employment.pdf
- https://cdn.shopify.com/s/files/1/0438/7835/1003/files/read_the_poem_fog_by_carl_sandburg.pdf
- https://cdn.shopify.com/s/files/1/0482/4360/5658/files/stardew_valley_buildings_costs.pdf
- https://cdn.shopify.com/s/files/1/0481/7997/0215/files/alejandro_de_la_madrid_jose_jose.pdf
- https://site-1037864.mozfiles.com/files/1037864/88620928496.pdf
- https://site-1044113.mozfiles.com/files/1044113/58532675352.pdf
- https://site-1042555.mozfiles.com/files/1042555/59495812193.pdf
- https://site-1040132.mozfiles.com/files/1040132/98591743884.pdf
- https://cdn-cms.f-static.net/uploads/4365626/normal_5f86f46b57e91.pdf
- https://cdn-cms.f-static.net/uploads/4365591/normal_5f86f9188dda8.pdf
- https://cdn-cms.f-static.net/uploads/4365546/normal_5f86fe97257d1.pdf
- https://cdn-cms.f-static.net/uploads/4366047/normal_5f8700fce957a.pdf
- https://cdn-cms.f-static.net/uploads/4366029/normal_5f86fbc21d439.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
- cctraff.ru
- site-1038980.mozfiles.com
- site-1039840.mozfiles.com
- site-1038555.mozfiles.com
- site-1038970.mozfiles.com
- site-1043291.mozfiles.com
- site-1037821.mozfiles.com
- site-1043809.mozfiles.com
- site-1039641.mozfiles.com
- cdn.shopify.com
- site-1037864.mozfiles.com
- site-1044113.mozfiles.com
- site-1042555.mozfiles.com
- site-1040132.mozfiles.com
- cdn-cms.f-static.net
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 52.123.252.239
- 74.178.76.44
- 57.155.104.224
- 52.110.12.3
- 52.110.12.38
- 4.230.171.124
- 203.26.79.13
- 135.233.95.135
- 135.232.92.137
- 52.123.129.14
- 40.99.134.2
- 40.99.133.210
- 52.123.252.240
- 135.233.45.223
- 4.209.250.170
- 172.175.111.170
- 20.42.65.93
- 142.250.195.131
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report