SUSPICIOUS — c4a18096a2630383d57ad8efc5e42af76f0cf8ba37ada82e878012dd6934800f
SUSPICIOUS — c4a18096a2630383d57ad8efc5e42af76f0cf8ba37ada82e878012dd6934800f is a pdf sample analyzed by MalwareAnalyzer by Cyble with a suspicious verdict (64/100). 4 of 53 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
c4a18096a2630383d57ad8efc5e42af76f0cf8ba37ada82e878012dd6934800f - SHA-1:
0c240965c2634f8c4eeb6c297c34749d786cab71 - MD5:
f99583d214ca32fa6870e1d155abc633 - ssdeep:
768:K0Mbis3aPGt295Fucr3tQiQNGgBFdu2Q:KIG65FPrijNfY2Q - TLSH:
T1072F5CF36197DC4C398D5F4399AA117E64CDD28861A3EBA044C4767CD07DAFE6B00A12 - Submitted as: c4a18096a2630383d57ad8efc5e42af76f0cf8ba37ada82e878012dd6934800f
- File type: pdf · Size: 35117 bytes
- Verdict: suspicious (64/100)
Detections (4 of 53 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- Microsoft Defender: Trojan:PDF/Phish.CFN!MTB
- Emsisoft (Emergency Kit): PDF.Spam.Heur.2
- Trellix Stinger (McAfee): PDF/Phish-TWM!F99583D214CA
MITRE ATT&CK
Why this verdict
The suspicious score of 64/100 is the fusion of 5 weighted signals:
- Contacted 19 external host(s) at runtime (8 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded network infrastructure: http://netcdn.tw/app/431946152/are-robux-generators-safe-game-hack, http://www.pentathlon.org.tw/data/file/userfiles/files/hack-robux-sans-verification-humaine_GM431946152.pdf, http://www.pentathlon.org.tw/data/file/userfiles/files/free-robux-codes-pastebin_GM431946152.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)
9661 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
- 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
- ntp.ubuntu.com
- 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 -
cd5b2144d139dbdaf53595276bba2f82fa74caf1aefc748c30a87ca03455f3f4 - C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\f87d320818097e8818f9f1ed237e878b.png -
81f5ce0026483a8b5ce373d0e202c92af267db8c4151ab5ea3cbec4d624877f5 - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- http://netcdn.tw/app/431946152/are-robux-generators-safe-game-hack
- http://www.pentathlon.org.tw/data/file/userfiles/files/hack-robux-sans-verification-humaine_GM431946152.pdf
- http://www.pentathlon.org.tw/data/file/userfiles/files/free-robux-codes-pastebin_GM431946152.pdf
- http://www.pentathlon.org.tw/data/file/userfiles/files/get-free-robux-generator_GM431946152.pdf
- http://www.pentathlon.org.tw/data/file/userfiles/files/robux-hack-tool-no-survey_GM431946152.pdf
- http://www.pentathlon.org.tw/data/file/userfiles/files/get-coin-master-hack_GM406889139.pdf
- http://www.pentathlon.org.tw/data/file/userfiles/files/roblox-jailbreak-hack-youtube_GM431946152.pdf
- http://www.pentathlon.org.tw/data/file/userfiles/files/roblox-account-hacker-tool_GM431946152.pdf
- http://www.pentathlon.org.tw/data/file/userfiles/files/free-robux-and-tix-hack-no-survey_GM431946152.pdf
- http://www.pentathlon.org.tw/data/file/userfiles/files/coin-master-free-500-spins-link_GM406889139.pdf
- http://www.pentathlon.org.tw/data/file/userfiles/files/how-to-get-free-robux-hack-no-human-verification_GM431946152.pdf
- http://www.pentathlon.org.tw/data/file/userfiles/files/roblox-bear-cheats_GM431946152.pdf
- http://www.pentathlon.org.tw/data/file/userfiles/files/roblox-hack-robux-cheat-engine_GM431946152.pdf
- http://www.pentathlon.org.tw/data/file/userfiles/files/ap-get-free-robux-and-tips-for-roblox-2021_GM431946152.pdf
- http://www.pentathlon.org.tw/data/file/userfiles/files/play-roblox-free-online-no-download_GM431946152.pdf
- http://www.pentathlon.org.tw/data/file/userfiles/files/coin-master-spins-gratis_GM406889139.pdf
- http://www.pentathlon.org.tw/data/file/userfiles/files/roblox-games-to-play-for-free_GM431946152.pdf
- http://www.pentathlon.org.tw/data/file/userfiles/files/game-cards-roblox-free_GM431946152.pdf
- http://www.pentathlon.org.tw/data/file/userfiles/files/how-to-get-free-robux-in-2021_GM431946152.pdf
- http://www.pentathlon.org.tw/data/file/userfiles/files/coin-master-daily-free-spins-link-today-blog_GM406889139.pdf
- http://www.pentathlon.org.tw/data/file/userfiles/files/free-to-wear-straw-hat-roblox_GM431946152.pdf
- 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/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
Embedded domains
- netcdn.tw
- www.pentathlon.org.tw
Embedded IP addresses
- 74.179.77.204
- 4.247.188.233
- 85.210.193.152
- 172.172.255.218
- 20.42.179.204
- 52.110.12.38
- 52.110.12.3
- 4.144.132.223
- 4.230.171.124
- 85.210.196.11
- 74.178.76.54
- 74.178.76.128
- 52.123.129.14
- 72.145.35.111
- 203.26.79.13
- 135.234.160.246
- 48.200.63.27
- 51.105.71.137
- 52.148.114.188
Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report