Analysis
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max time kernel
161s -
max time network
169s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
11-05-2024 06:40
Static task
static1
Behavioral task
behavioral1
Sample
Free Nitro.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
Free Nitro.exe
Resource
win10v2004-20240226-en
General
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Target
Free Nitro.exe
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Size
62KB
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MD5
d01e6cc12d314d7d1d3714fa9be0ca80
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SHA1
9cb53ff747461cf4f122d6356296341bbd2fe203
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SHA256
5010be4c22df0349619aede47aa8e234e16985c8dbd0ca86de12c778b402bf58
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SHA512
2fb687819b5cf9ad93b702b553b8d5760e8bb946abd436da72f44918f141ec9be1c6bb02252400da9d9846f70db61f993af783c7a996d6523be582a16d8a767e
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SSDEEP
768:OKsMqCXfVcWrPM9ZkiANIUkwYLDwUzc80gmq3oP/oDF:OKsejM9ZkiAP2r/0O8/op
Malware Config
Signatures
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Free Nitro.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Free Nitro.exe\"" Free Nitro.exe -
Drops desktop.ini file(s) 2 IoCs
Processes:
Free Nitro.exedescription ioc process File opened for modification C:\Users\Admin\Pictures\desktop.ini Free Nitro.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini Free Nitro.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 IoCs
Processes:
flow ioc 66 discord.com 67 discord.com 57 discord.com 59 discord.com 65 discord.com -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 54 api.ipify.org 55 api.ipify.org -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
Free Nitro.exepid process 1152 Free Nitro.exe 1152 Free Nitro.exe -
Suspicious use of AdjustPrivilegeToken 43 IoCs
Processes:
Free Nitro.exeWMIC.exedescription pid process Token: SeDebugPrivilege 1152 Free Nitro.exe Token: SeIncreaseQuotaPrivilege 3024 WMIC.exe Token: SeSecurityPrivilege 3024 WMIC.exe Token: SeTakeOwnershipPrivilege 3024 WMIC.exe Token: SeLoadDriverPrivilege 3024 WMIC.exe Token: SeSystemProfilePrivilege 3024 WMIC.exe Token: SeSystemtimePrivilege 3024 WMIC.exe Token: SeProfSingleProcessPrivilege 3024 WMIC.exe Token: SeIncBasePriorityPrivilege 3024 WMIC.exe Token: SeCreatePagefilePrivilege 3024 WMIC.exe Token: SeBackupPrivilege 3024 WMIC.exe Token: SeRestorePrivilege 3024 WMIC.exe Token: SeShutdownPrivilege 3024 WMIC.exe Token: SeDebugPrivilege 3024 WMIC.exe Token: SeSystemEnvironmentPrivilege 3024 WMIC.exe Token: SeRemoteShutdownPrivilege 3024 WMIC.exe Token: SeUndockPrivilege 3024 WMIC.exe Token: SeManageVolumePrivilege 3024 WMIC.exe Token: 33 3024 WMIC.exe Token: 34 3024 WMIC.exe Token: 35 3024 WMIC.exe Token: 36 3024 WMIC.exe Token: SeIncreaseQuotaPrivilege 3024 WMIC.exe Token: SeSecurityPrivilege 3024 WMIC.exe Token: SeTakeOwnershipPrivilege 3024 WMIC.exe Token: SeLoadDriverPrivilege 3024 WMIC.exe Token: SeSystemProfilePrivilege 3024 WMIC.exe Token: SeSystemtimePrivilege 3024 WMIC.exe Token: SeProfSingleProcessPrivilege 3024 WMIC.exe Token: SeIncBasePriorityPrivilege 3024 WMIC.exe Token: SeCreatePagefilePrivilege 3024 WMIC.exe Token: SeBackupPrivilege 3024 WMIC.exe Token: SeRestorePrivilege 3024 WMIC.exe Token: SeShutdownPrivilege 3024 WMIC.exe Token: SeDebugPrivilege 3024 WMIC.exe Token: SeSystemEnvironmentPrivilege 3024 WMIC.exe Token: SeRemoteShutdownPrivilege 3024 WMIC.exe Token: SeUndockPrivilege 3024 WMIC.exe Token: SeManageVolumePrivilege 3024 WMIC.exe Token: 33 3024 WMIC.exe Token: 34 3024 WMIC.exe Token: 35 3024 WMIC.exe Token: 36 3024 WMIC.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
Free Nitro.execmd.exedescription pid process target process PID 1152 wrote to memory of 4352 1152 Free Nitro.exe cmd.exe PID 1152 wrote to memory of 4352 1152 Free Nitro.exe cmd.exe PID 1152 wrote to memory of 4352 1152 Free Nitro.exe cmd.exe PID 4352 wrote to memory of 3024 4352 cmd.exe WMIC.exe PID 4352 wrote to memory of 3024 4352 cmd.exe WMIC.exe PID 4352 wrote to memory of 3024 4352 cmd.exe WMIC.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Free Nitro.exe"C:\Users\Admin\AppData\Local\Temp\Free Nitro.exe"1⤵
- Adds Run key to start application
- Drops desktop.ini file(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1152 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:4352 -
C:\Windows\SysWOW64\Wbem\WMIC.exewmic csproduct get uuid3⤵
- Suspicious use of AdjustPrivilegeToken
PID:3024
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4136 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:81⤵PID:2304
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:4344