MALICIOUS — f761b7c193aa7b1da92b8b356f740b24ae647b609e3322fce7ac831ddf5c451b

MALICIOUS — f761b7c193aa7b1da92b8b356f740b24ae647b609e3322fce7ac831ddf5c451b is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (96/100). 4 of 54 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

• SHA-256: f761b7c193aa7b1da92b8b356f740b24ae647b609e3322fce7ac831ddf5c451b
• SHA-1: 6b6e79b8200410aeb8ea87cf311115abe3b7f0f8
• MD5: 69fea2c550e77f9948a5d37e9703f846
• ssdeep: 768:NUfFSxi55rPjotG35ToDuMYsma8hNQHvHIjqNeM55SLgopFTCbcce3+fS0EEMS:NtePEt6tsmPhqfZx5SbpFueiSdEMS
• TLSH: T17932C0F3011ECC986383AB0795AA149974CE96DC35009F9864E87ABCC4643FD6B91B32
• Submitted as: f761b7c193aa7b1da92b8b356f740b24ae647b609e3322fce7ac831ddf5c451b
• File type: pdf · Size: 44922 bytes
• Verdict: malicious (96/100)

Detections (4 of 54 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!69FEA2C550E7

MITRE ATT&CK

• T1105

Why this verdict

The malicious score of 96/100 is the fusion of 9 weighted signals:

• Microsoft Defender flagged Trojan:PDF/Phish.CFN!MTB (rule Trojan:PDF/Phish.CFN!MTB) - engine signal, weight 0.55, confidence 0.85
• Emsisoft (Emergency Kit) flagged PDF.Spam.Heur.2 (rule PDF.Spam.Heur.2) - engine signal, weight 0.55, confidence 0.85
• Trellix Stinger (McAfee) flagged PDF/Phish-TWM!69FEA2C550E7 (rule PDF/Phish-TWM!69FEA2C550E7) - engine signal, weight 0.55, confidence 0.85
• Contacted 5 external host(s) and 3 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
• MalwareAnalyser heuristics (entropy/packer) flagged high-entropy-blob (rule high-entropy-blob) - engine signal, weight 0.35, confidence 0.70
• Embedded network infrastructure: https://netcdn.xyz/app/406889139/coin-master-free-spins-links-2021-game-hack - 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 (1 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30

Dynamic analysis (windows)

1263 behavior events · 0 ATT&CK techniques · 1 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• c.pki.goog
• x2.c.lencr.org
• ye.c.lencr.org
• yr.c.lencr.org
• ntp.ubuntu.com
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl
• http://c.pki.goog/r/r1.crl
• http://x2.c.lencr.org/
• http://ye.c.lencr.org/
• http://c.pki.goog/wr2/9UVbN0w5E6Y.crl
• http://yr.c.lencr.org/
• 23.40.52.85
• 23.11.37.157
• 162.159.142.9 US · San Francisco · AS13335 Cloudflare, Inc.

Dropped files

• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

• https://netcdn.xyz/app/406889139/coin-master-free-spins-links-2021-game-hack
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl
• http://c.pki.goog/r/r1.crl
• http://x2.c.lencr.org/
• http://ye.c.lencr.org/
• http://c.pki.goog/wr2/9UVbN0w5E6Y.crl
• http://yr.c.lencr.org/

Embedded domains

• netcdn.xyz
• x2.c.lencr.org
• ye.c.lencr.org
• yr.c.lencr.org

Embedded IP addresses

• 162.159.142.9
• 20.247.184.197
• 52.123.252.195
• 52.110.12.11
• 4.230.171.124

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report