Analysis
-
max time kernel
43s -
max time network
47s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
13/02/2023, 03:49
Static task
static1
Behavioral task
behavioral1
Sample
2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe
Resource
win7-20220812-en
9 signatures
150 seconds
General
-
Target
2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe
-
Size
168KB
-
MD5
84d164fbfe0982a00404cb3d7b164bf5
-
SHA1
e068cd94e06c1f592a2d16ac2adc52c2ce506fa5
-
SHA256
2032acdf04511314d53f51d1fef7f9e62e69abbe3db0b31a0302a8545ab1bd82
-
SHA512
be33a2f96c68ff640a1f59241969fb27971305ecf251c2f8422d3e5a6b0bf609580a7360db3fa3c0355c956f19efec5f7d2f69e947e8f3c979f930ee1761da04
-
SSDEEP
3072:tzFEhjHHIUjCgArLEZXApH3UHE360ESYUzp8t:1FWHIU2Y9KEHE36FS5p8t
Malware Config
Signatures
-
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 cyclebears.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Modifies data under HKEY_USERS 21 IoCs
description ioc Process Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-57-01-2d-d2-7c\WpadDecisionTime = c017baa6663fd901 cyclebears.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-57-01-2d-d2-7c\WpadDecision = "0" cyclebears.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix cyclebears.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings cyclebears.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad cyclebears.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-57-01-2d-d2-7c\WpadDecisionReason = "1" cyclebears.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 cyclebears.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D41B703F-9B6D-4ECC-8E25-AAEF2BE6AC94}\WpadDecisionTime = c017baa6663fd901 cyclebears.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D41B703F-9B6D-4ECC-8E25-AAEF2BE6AC94}\WpadNetworkName = "Network 2" cyclebears.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-57-01-2d-d2-7c cyclebears.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings cyclebears.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections cyclebears.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" cyclebears.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 cyclebears.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" cyclebears.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D41B703F-9B6D-4ECC-8E25-AAEF2BE6AC94} cyclebears.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D41B703F-9B6D-4ECC-8E25-AAEF2BE6AC94}\WpadDecisionReason = "1" cyclebears.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D41B703F-9B6D-4ECC-8E25-AAEF2BE6AC94}\WpadDecision = "0" cyclebears.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 cyclebears.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" cyclebears.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D41B703F-9B6D-4ECC-8E25-AAEF2BE6AC94}\be-57-01-2d-d2-7c cyclebears.exe -
Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache rundll32.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1384 cyclebears.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 1676 2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe -
Suspicious use of UnmapMainImage 4 IoCs
pid Process 1948 2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe 1676 2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe 1756 cyclebears.exe 1384 cyclebears.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1948 wrote to memory of 1676 1948 2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe 28 PID 1948 wrote to memory of 1676 1948 2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe 28 PID 1948 wrote to memory of 1676 1948 2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe 28 PID 1948 wrote to memory of 1676 1948 2019-05-01-Emotet-binary-retrieved-by-Word-macro.exe 28 PID 1756 wrote to memory of 1384 1756 cyclebears.exe 30 PID 1756 wrote to memory of 1384 1756 cyclebears.exe 30 PID 1756 wrote to memory of 1384 1756 cyclebears.exe 30 PID 1756 wrote to memory of 1384 1756 cyclebears.exe 30
Processes
-
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:1948 -
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:1676
-
-
C:\Windows\SysWOW64\cyclebears.exe"C:\Windows\SysWOW64\cyclebears.exe"1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1756 -
C:\Windows\SysWOW64\cyclebears.exe--b8165e2b2⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
PID:1384
-
-
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\Desktop\SendUpdate.vdw1⤵
- Modifies registry class
PID:1652