Analysis
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max time kernel
208s -
max time network
211s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
14/02/2023, 22:52
Static task
static1
Behavioral task
behavioral1
Sample
2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe
Resource
win7-20221111-en
8 signatures
150 seconds
General
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Target
2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe
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Size
168KB
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MD5
84d164fbfe0982a00404cb3d7b164bf5
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SHA1
e068cd94e06c1f592a2d16ac2adc52c2ce506fa5
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SHA256
2032acdf04511314d53f51d1fef7f9e62e69abbe3db0b31a0302a8545ab1bd82
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SHA512
be33a2f96c68ff640a1f59241969fb27971305ecf251c2f8422d3e5a6b0bf609580a7360db3fa3c0355c956f19efec5f7d2f69e947e8f3c979f930ee1761da04
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SSDEEP
3072:tzFEhjHHIUjCgArLEZXApH3UHE360ESYUzp8t:1FWHIU2Y9KEHE36FS5p8t
Malware Config
Signatures
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Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat unpackbears.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies data under HKEY_USERS 25 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6ECFCAC3-D841-49AF-AC7D-5BE7CB93B33F}\WpadDecision = "0" unpackbears.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings unpackbears.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 unpackbears.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" unpackbears.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings unpackbears.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" unpackbears.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad unpackbears.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6ECFCAC3-D841-49AF-AC7D-5BE7CB93B33F} unpackbears.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-3e-3e-d0-0f-44 unpackbears.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-3e-3e-d0-0f-44\WpadDetectedUrl unpackbears.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix unpackbears.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" unpackbears.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6ECFCAC3-D841-49AF-AC7D-5BE7CB93B33F}\WpadDecisionReason = "1" unpackbears.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6ECFCAC3-D841-49AF-AC7D-5BE7CB93B33F}\WpadNetworkName = "Network 2" unpackbears.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6ECFCAC3-D841-49AF-AC7D-5BE7CB93B33F}\8a-3e-3e-d0-0f-44 unpackbears.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-3e-3e-d0-0f-44\WpadDecision = "0" unpackbears.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000004000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f004b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 unpackbears.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections unpackbears.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-3e-3e-d0-0f-44\WpadDecisionTime = 804f2b88cf40d901 unpackbears.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6ECFCAC3-D841-49AF-AC7D-5BE7CB93B33F}\WpadDecisionTime = 605572e2cf40d901 unpackbears.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-3e-3e-d0-0f-44\WpadDecisionTime = 605572e2cf40d901 unpackbears.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 unpackbears.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f004b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 unpackbears.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6ECFCAC3-D841-49AF-AC7D-5BE7CB93B33F}\WpadDecisionTime = 804f2b88cf40d901 unpackbears.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-3e-3e-d0-0f-44\WpadDecisionReason = "1" unpackbears.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 868 unpackbears.exe 868 unpackbears.exe 868 unpackbears.exe 868 unpackbears.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 1428 2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe -
Suspicious use of UnmapMainImage 4 IoCs
pid Process 1728 2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe 1428 2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe 896 unpackbears.exe 868 unpackbears.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1728 wrote to memory of 1428 1728 2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe 28 PID 1728 wrote to memory of 1428 1728 2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe 28 PID 1728 wrote to memory of 1428 1728 2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe 28 PID 1728 wrote to memory of 1428 1728 2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe 28 PID 896 wrote to memory of 868 896 unpackbears.exe 30 PID 896 wrote to memory of 868 896 unpackbears.exe 30 PID 896 wrote to memory of 868 896 unpackbears.exe 30 PID 896 wrote to memory of 868 896 unpackbears.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe"C:\Users\Admin\AppData\Local\Temp\2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe"1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1728 -
C:\Users\Admin\AppData\Local\Temp\2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe--6dea92982⤵
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
PID:1428
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C:\Windows\SysWOW64\unpackbears.exe"C:\Windows\SysWOW64\unpackbears.exe"1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:896 -
C:\Windows\SysWOW64\unpackbears.exe--ba3423e32⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
PID:868
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