Analysis
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max time kernel
141s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
12-06-2024 13:58
Behavioral task
behavioral1
Sample
bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe
Resource
win7-20240220-en
General
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Target
bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe
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Size
2.7MB
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MD5
3a6c337e35fc0876cb5726f2edfb3118
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SHA1
34806f53b8e78997b91861efca72d3693181df2b
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SHA256
bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05
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SHA512
3f7c4c0c047596cdc0a9005796f2edfaee16c61b528b4bc834c7be991a67f04546da610ced7d9092056cd1c0c3b2bd0aa40f537b52d73e476febf16d1a859c2c
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SSDEEP
49152:X6KN3J3DrBW/NTy0ljNLHbW0e6v2D5NTtSbXUuE11eJC53B3AQ7iRrxdS8iyEuXE:XZZJnBW/ZjNL7pe6v2D5NTS3E1vHwQu8
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exepid Process 2692 bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe -
Loads dropped DLL 4 IoCs
Processes:
bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exebf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exebf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exepid Process 2860 bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe 2228 bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe 2860 bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe 2692 bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe -
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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Processes:
resource yara_rule behavioral1/memory/2860-0-0x0000000000400000-0x000000000092E000-memory.dmp upx behavioral1/memory/2228-10-0x0000000000400000-0x000000000092E000-memory.dmp upx behavioral1/files/0x0006000000016c1f-12.dat upx behavioral1/memory/2692-17-0x0000000000400000-0x000000000092E000-memory.dmp upx behavioral1/memory/2692-22-0x0000000000400000-0x000000000092E000-memory.dmp upx behavioral1/memory/2860-538-0x0000000000400000-0x000000000092E000-memory.dmp upx -
Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exedescription ioc Process File opened (read-only) \??\D: bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe File opened (read-only) \??\F: bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exepid Process 2860 bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exedescription pid Process procid_target PID 2860 wrote to memory of 2228 2860 bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe 28 PID 2860 wrote to memory of 2228 2860 bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe 28 PID 2860 wrote to memory of 2228 2860 bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe 28 PID 2860 wrote to memory of 2228 2860 bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe 28 PID 2860 wrote to memory of 2228 2860 bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe 28 PID 2860 wrote to memory of 2228 2860 bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe 28 PID 2860 wrote to memory of 2228 2860 bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe 28 PID 2860 wrote to memory of 2692 2860 bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe 29 PID 2860 wrote to memory of 2692 2860 bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe 29 PID 2860 wrote to memory of 2692 2860 bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe 29 PID 2860 wrote to memory of 2692 2860 bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe 29 PID 2860 wrote to memory of 2692 2860 bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe 29 PID 2860 wrote to memory of 2692 2860 bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe 29 PID 2860 wrote to memory of 2692 2860 bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe"C:\Users\Admin\AppData\Local\Temp\bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe"1⤵
- Loads dropped DLL
- Enumerates connected drives
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2860 -
C:\Users\Admin\AppData\Local\Temp\bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exeC:\Users\Admin\AppData\Local\Temp\bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktop --annotation=ver=90.0.4480.48 --initial-client-data=0x188,0x18c,0x190,0x15c,0x194,0x745989c8,0x745989d8,0x745989e42⤵
- Loads dropped DLL
PID:2228
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C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe"C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe" --version2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2692
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD5a80a6e126c8f29f4d7e6c4ac50ac46bb
SHA17617b8631e946ac13ae9df4ebb547c57935e841b
SHA2566fb5201ab18b4cbafcfd5f85cb4fb43ddcd1feb81936c9e87ad841c486fd4662
SHA512efe6cd0b1c19401686e4e31a89d279a7f5661fb2c4ba140766be0c3908a89bb338b3d62bc1509b4fd25ce67a34ce2850791f30cc4bab0444c38110a2b0e47b9c
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD5936a6c190b44ad2332260defe55f2e66
SHA1097fb9289e19131b742aeabb812a751be905def4
SHA25618afacb2996826e0181de2d8f0d4114c2fd13053e62ca6fd1c0952dfd48f5b17
SHA51235e8948408cf4c64fb819691c7b9f308936e1ac776bf09bd2038e592b3a23beabc646cace17d4df4118d5a7c5a4f43ca990a816724d09d27b1115f70306eb99f
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Filesize
65KB
MD5ac05d27423a85adc1622c714f2cb6184
SHA1b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA256c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
SHA5126d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d
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Filesize
181KB
MD54ea6026cf93ec6338144661bf1202cd1
SHA1a1dec9044f750ad887935a01430bf49322fbdcb7
SHA2568efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA5126c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b
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\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05.exe
Filesize2.7MB
MD53a6c337e35fc0876cb5726f2edfb3118
SHA134806f53b8e78997b91861efca72d3693181df2b
SHA256bf19a1b8febfef715831b6c6864854df1673bdf2483f236752fbc99fedd33d05
SHA5123f7c4c0c047596cdc0a9005796f2edfaee16c61b528b4bc834c7be991a67f04546da610ced7d9092056cd1c0c3b2bd0aa40f537b52d73e476febf16d1a859c2c
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Filesize
4.5MB
MD581fe65af3d3707ef3d58020f87c8ae21
SHA1d25b438f9c2a4ef5929ca4167e2f6526f9252703
SHA256c2be617c6c6a77724400992878a95dfdb7dd24571330a167e9c423d33098cb7b
SHA5122a3cd92b9f5df14834cff9b37e5fa40faf47d8bb4a637fe44d58d69b0fdc218d2ea39e179b711ebad715eb656c8fb7fa2b7b4642c3301e000bf60fc38a6e0969