Resubmissions
15/02/2023, 16:39
230215-t55jfscg64 10Analysis
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max time kernel
158s -
max time network
164s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
15/02/2023, 16:39
Static task
static1
Behavioral task
behavioral1
Sample
2019-05-01-Emotet-binary-updated-after-initial-infection-1-of-2.exe
Resource
win7-20221111-en
8 signatures
150 seconds
General
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Target
2019-05-01-Emotet-binary-updated-after-initial-infection-1-of-2.exe
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Size
168KB
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MD5
1cc91941efd6d3da54a1054d9c9d870f
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SHA1
b6531c99b2fb0c51941ac3a636c5c3cf69073f65
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SHA256
6d7aff70a84d9237bde3b149ff04532cafb29b6f358886b5038a737af5934d1f
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SHA512
bade1e20f1a892e33d20535235f0ed45b625ef8cdd1ba9a391f074d3b77f971fb63f68f6d0f97e51fa48ef211fa7bea76a56da9deb88c85dbd0aa892ae78ed69
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SSDEEP
3072:5JYzFEhjHHIUjCgArLEZXApH3UHE360ESYUspf:r4FeHIU2Y9KEHE36FS2pf
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 redistbit.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 21 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-de-de-26-22-3d\WpadDecisionReason = "1" redistbit.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-de-de-26-22-3d\WpadDecision = "0" redistbit.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" redistbit.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings redistbit.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad redistbit.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2AE254A0-F732-484A-97FB-E0C90807DC4B}\WpadDecisionReason = "1" redistbit.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2AE254A0-F732-484A-97FB-E0C90807DC4B}\WpadDecision = "0" redistbit.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2AE254A0-F732-484A-97FB-E0C90807DC4B}\WpadNetworkName = "Network 2" redistbit.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings redistbit.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" redistbit.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections redistbit.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 redistbit.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 redistbit.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0048000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 redistbit.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2AE254A0-F732-484A-97FB-E0C90807DC4B} redistbit.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix redistbit.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" redistbit.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2AE254A0-F732-484A-97FB-E0C90807DC4B}\WpadDecisionTime = 80d47c8a6441d901 redistbit.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-de-de-26-22-3d redistbit.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2AE254A0-F732-484A-97FB-E0C90807DC4B}\52-de-de-26-22-3d redistbit.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-de-de-26-22-3d\WpadDecisionTime = 80d47c8a6441d901 redistbit.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1456 redistbit.exe 1456 redistbit.exe 1456 redistbit.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 2036 2019-05-01-Emotet-binary-updated-after-initial-infection-1-of-2.exe -
Suspicious use of UnmapMainImage 4 IoCs
pid Process 1104 2019-05-01-Emotet-binary-updated-after-initial-infection-1-of-2.exe 2036 2019-05-01-Emotet-binary-updated-after-initial-infection-1-of-2.exe 564 redistbit.exe 1456 redistbit.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1104 wrote to memory of 2036 1104 2019-05-01-Emotet-binary-updated-after-initial-infection-1-of-2.exe 28 PID 1104 wrote to memory of 2036 1104 2019-05-01-Emotet-binary-updated-after-initial-infection-1-of-2.exe 28 PID 1104 wrote to memory of 2036 1104 2019-05-01-Emotet-binary-updated-after-initial-infection-1-of-2.exe 28 PID 1104 wrote to memory of 2036 1104 2019-05-01-Emotet-binary-updated-after-initial-infection-1-of-2.exe 28 PID 1104 wrote to memory of 2036 1104 2019-05-01-Emotet-binary-updated-after-initial-infection-1-of-2.exe 28 PID 1104 wrote to memory of 2036 1104 2019-05-01-Emotet-binary-updated-after-initial-infection-1-of-2.exe 28 PID 1104 wrote to memory of 2036 1104 2019-05-01-Emotet-binary-updated-after-initial-infection-1-of-2.exe 28 PID 564 wrote to memory of 1456 564 redistbit.exe 30 PID 564 wrote to memory of 1456 564 redistbit.exe 30 PID 564 wrote to memory of 1456 564 redistbit.exe 30 PID 564 wrote to memory of 1456 564 redistbit.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\2019-05-01-Emotet-binary-updated-after-initial-infection-1-of-2.exe"C:\Users\Admin\AppData\Local\Temp\2019-05-01-Emotet-binary-updated-after-initial-infection-1-of-2.exe"1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1104 -
C:\Users\Admin\AppData\Local\Temp\2019-05-01-Emotet-binary-updated-after-initial-infection-1-of-2.exe--a1bda3282⤵
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
PID:2036
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C:\Windows\SysWOW64\redistbit.exe"C:\Windows\SysWOW64\redistbit.exe"1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:564 -
C:\Windows\SysWOW64\redistbit.exe--5132896a2⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
PID:1456
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