Resubmissions
14/02/2023, 23:19
230214-3a128agg95 10Analysis
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max time kernel
132s -
max time network
145s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
14/02/2023, 23:19
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 pnfrandom.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 (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" pnfrandom.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad pnfrandom.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9CFCECE3-63FE-4415-A91E-3DD7FEEA2DF4}\WpadDecisionTime = b0133040d340d901 pnfrandom.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\92-06-10-b6-50-57\WpadDecisionTime = b0133040d340d901 pnfrandom.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings pnfrandom.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9CFCECE3-63FE-4415-A91E-3DD7FEEA2DF4} pnfrandom.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9CFCECE3-63FE-4415-A91E-3DD7FEEA2DF4}\WpadDecision = "0" pnfrandom.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\92-06-10-b6-50-57 pnfrandom.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9CFCECE3-63FE-4415-A91E-3DD7FEEA2DF4}\92-06-10-b6-50-57 pnfrandom.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections pnfrandom.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 pnfrandom.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix pnfrandom.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" pnfrandom.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9CFCECE3-63FE-4415-A91E-3DD7FEEA2DF4}\WpadNetworkName = "Network 2" pnfrandom.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\92-06-10-b6-50-57\WpadDecision = "0" pnfrandom.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings pnfrandom.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" pnfrandom.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 pnfrandom.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f004c000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 pnfrandom.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9CFCECE3-63FE-4415-A91E-3DD7FEEA2DF4}\WpadDecisionReason = "1" pnfrandom.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\92-06-10-b6-50-57\WpadDecisionReason = "1" pnfrandom.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 380 pnfrandom.exe 380 pnfrandom.exe 380 pnfrandom.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 2028 2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe -
Suspicious use of UnmapMainImage 4 IoCs
pid Process 1648 2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe 2028 2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe 1288 pnfrandom.exe 380 pnfrandom.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1648 wrote to memory of 2028 1648 2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe 28 PID 1648 wrote to memory of 2028 1648 2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe 28 PID 1648 wrote to memory of 2028 1648 2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe 28 PID 1648 wrote to memory of 2028 1648 2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe 28 PID 1288 wrote to memory of 380 1288 pnfrandom.exe 30 PID 1288 wrote to memory of 380 1288 pnfrandom.exe 30 PID 1288 wrote to memory of 380 1288 pnfrandom.exe 30 PID 1288 wrote to memory of 380 1288 pnfrandom.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:1648 -
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:2028
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C:\Windows\SysWOW64\pnfrandom.exe"C:\Windows\SysWOW64\pnfrandom.exe"1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1288 -
C:\Windows\SysWOW64\pnfrandom.exe--e308ec412⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
PID:380
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