Analysis
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max time kernel
120s -
max time network
137s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
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submitted
22-12-2024 02:14
General
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Target
4cb5fdd185102520c29c5975190f67567eeffaa42dc3692ee0cc9595b8a07e20.exe
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Size
4.7MB
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MD5
99209e1f30a833e0c7654fcc0aa2c9c5
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SHA1
75ac3347aae0a9dc3520ce0d31ca6ee2c7f4bbe5
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SHA256
4cb5fdd185102520c29c5975190f67567eeffaa42dc3692ee0cc9595b8a07e20
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SHA512
abd6cac229ffac33e6ec887e41b041c4e02a5da1a054c474549657dfda326afbfd127c435f796d2945b0eb1d9586599936d0ddae339845dd43a91610c5baaa5b
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SSDEEP
12288:egY1Cj1eUAM2X3bV+rrmDl5/NJoBh3fVFycj3eI8HnR80p0C2jGJBHAfVDS3E6t1:elMednbV+rrmlzM6AOhujGJBKKE6t1
Malware Config
Signatures
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DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Dcrat family
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DCRat payload 3 IoCs
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Executes dropped EXE 1 IoCs
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Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops file in Program Files directory 2 IoCs
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Drops file in Windows directory 5 IoCs
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Browser Information Discovery 1 TTPs
Enumerate browser information.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs
Adversaries may check for Internet connectivity on compromised systems.
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Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 12 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\4cb5fdd185102520c29c5975190f67567eeffaa42dc3692ee0cc9595b8a07e20.exe"C:\Users\Admin\AppData\Local\Temp\4cb5fdd185102520c29c5975190f67567eeffaa42dc3692ee0cc9595b8a07e20.exe"1⤵
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\G0q4qmSC6M.bat"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\chcp.comchcp 650013⤵
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C:\Windows\system32\PING.EXEping -n 10 localhost3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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C:\Windows\L2Schemas\Idle.exe"C:\Windows\L2Schemas\Idle.exe"3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
157B
MD52945768874c3610570676cfc840a0ce2
SHA1c79978937f171f566b7bc71f5f43924ecefea5a0
SHA25648d4f659b487f1e25fb5965b86054313a7f286b554f6609d7c434968542acd6b
SHA5121bf42a15bcfbb3ce77eaa0db5a3cd4344d759959690ccc55a85b7642df2216c30956aaf0872e5d1a07b7b11abd026766c2a94e8c2dd3675720cc584015e76d07
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Filesize
4.7MB
MD599209e1f30a833e0c7654fcc0aa2c9c5
SHA175ac3347aae0a9dc3520ce0d31ca6ee2c7f4bbe5
SHA2564cb5fdd185102520c29c5975190f67567eeffaa42dc3692ee0cc9595b8a07e20
SHA512abd6cac229ffac33e6ec887e41b041c4e02a5da1a054c474549657dfda326afbfd127c435f796d2945b0eb1d9586599936d0ddae339845dd43a91610c5baaa5b
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Filesize
72KB
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Filesize
9.9MB
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Filesize
112KB
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Filesize
96KB
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Filesize
56KB
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Filesize
48KB
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Filesize
4KB
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Filesize
112KB
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Filesize
9.9MB
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Filesize
9.9MB
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Filesize
9.9MB
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Filesize
9.9MB
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Filesize
9.9MB
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Filesize
9.9MB
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Filesize
848KB
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Filesize
848KB