Analysis
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max time kernel
146s -
max time network
150s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
28-12-2020 07:30
Static task
static1
Behavioral task
behavioral1
Sample
0f64dfaa815081f110456e9894a7771c.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
0f64dfaa815081f110456e9894a7771c.exe
Resource
win10v20201028
General
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Target
0f64dfaa815081f110456e9894a7771c.exe
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Size
594KB
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MD5
0f64dfaa815081f110456e9894a7771c
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SHA1
2d32280b058eefc202ec725b3fa644e9d657960b
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SHA256
8d2e3cb6a7ee561bafe29716d678dd185419a969537eeaeb93a048b930895c9f
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SHA512
249caa13cadedf9cd945d165998e101821916c3ca40daf274c502ae7266400011f9bbb25d6c98972b7ad4f8af14648a364da4d5bbbcf102e1fa4e234b5a84f10
Malware Config
Signatures
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine Payload 2 IoCs
Processes:
resource yara_rule behavioral1/memory/1648-12-0x0000000006750000-0x0000000006774000-memory.dmp family_redline behavioral1/memory/1648-13-0x0000000006B10000-0x0000000006B32000-memory.dmp family_redline -
Executes dropped EXE 1 IoCs
Processes:
bestof.exepid process 1648 bestof.exe -
Processes:
resource yara_rule \Users\Admin\AppData\Roaming\leadentop\bestof.exe upx C:\Users\Admin\AppData\Roaming\leadentop\bestof.exe upx -
Loads dropped DLL 1 IoCs
Processes:
0f64dfaa815081f110456e9894a7771c.exepid process 1684 0f64dfaa815081f110456e9894a7771c.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 11 ip-api.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
0f64dfaa815081f110456e9894a7771c.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 0f64dfaa815081f110456e9894a7771c.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 0f64dfaa815081f110456e9894a7771c.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
bestof.exedescription pid process Token: SeDebugPrivilege 1648 bestof.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
0f64dfaa815081f110456e9894a7771c.exedescription pid process target process PID 1684 wrote to memory of 1648 1684 0f64dfaa815081f110456e9894a7771c.exe bestof.exe PID 1684 wrote to memory of 1648 1684 0f64dfaa815081f110456e9894a7771c.exe bestof.exe PID 1684 wrote to memory of 1648 1684 0f64dfaa815081f110456e9894a7771c.exe bestof.exe PID 1684 wrote to memory of 1648 1684 0f64dfaa815081f110456e9894a7771c.exe bestof.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\0f64dfaa815081f110456e9894a7771c.exe"C:\Users\Admin\AppData\Local\Temp\0f64dfaa815081f110456e9894a7771c.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1684 -
C:\Users\Admin\AppData\Roaming\leadentop\bestof.exebestof.exe2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1648
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
ce62304c3eff639e1b2352667a569b8a
SHA15a5cb774b59befe102fe04e93d9853cfbda3334b
SHA256e8356fad49709d2563d2707dbb09f4f1019e30a0ff5836047a11b3d1d84f4d62
SHA51299d77537f2fade1ca2255c16fcd5d64618f0364f15cddb1b6a48814c9a7e59ccdac72db7f0a1cf4b0eac63180264fd58989e43839373d085ecb42ad2b9fe6f41
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MD5
ce62304c3eff639e1b2352667a569b8a
SHA15a5cb774b59befe102fe04e93d9853cfbda3334b
SHA256e8356fad49709d2563d2707dbb09f4f1019e30a0ff5836047a11b3d1d84f4d62
SHA51299d77537f2fade1ca2255c16fcd5d64618f0364f15cddb1b6a48814c9a7e59ccdac72db7f0a1cf4b0eac63180264fd58989e43839373d085ecb42ad2b9fe6f41