bab1853454ca6fdd3acd471254101db1b805b601e309a49ec7b4b1fbcfc47ad7 | Triage

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21-02-2024 14:33

240221-rw8hmsha2y 10

21-02-2024 14:31

240221-rvtm4agh7w 10

21-02-2024 11:52

240221-n1xedseg6t 10

Analysis

max time kernel
107s
max time network
89s
platform
windows11-21h2_x64
resource
win11-20240214-en
resource tags

arch:x64arch:x86image:win11-20240214-enlocale:en-usos:windows11-21h2-x64system
submitted
21-02-2024 11:52

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General

Target

cryptowall.exe
Size

240KB
MD5

47363b94cee907e2b8926c1be61150c7
SHA1

ca963033b9a285b8cd0044df38146a932c838071
SHA256

45317968759d3e37282ceb75149f627d648534c5b4685f6da3966d8f6fca662d
SHA512

93dfaafc183360829448887a112dd49c90ec5fe50dcd7c7bbc06c1c8daa206eeea5577f726d906446322c731d0520e93700d5ff9cefd730fba347c72b7325068
SSDEEP

3072:xkeyloECBch6ZCGBGSmHJ0y5lj6jdojK7+MGOXpXx8z3Lp7Yoq:xGlnCIwMpj6ijKfxx8z3F0V

Score

3^/10

Malware Config

Signatures

Program crash 3 IoCs

pid	pid_target	Process	procid_target
3752	3092	WerFault.exe	78
3144	2112	WerFault.exe	89
2012	4372	WerFault.exe	94

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: 33	3092	cryptowall.exe
Token: SeIncBasePriorityPrivilege	3092	cryptowall.exe
Token: 33	2112	cryptowall.exe
Token: SeIncBasePriorityPrivilege	2112	cryptowall.exe
Token: 33	4372	cryptowall.exe
Token: SeIncBasePriorityPrivilege	4372	cryptowall.exe

C:\Users\Admin\AppData\Local\Temp\cryptowall.exe
"C:\Users\Admin\AppData\Local\Temp\cryptowall.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3092
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3092 -s 500
  2⤵
  - Program crash
  PID:3752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3092 -ip 3092
1⤵
PID:1344

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:1560

C:\Users\Admin\AppData\Local\Temp\cryptowall.exe
"C:\Users\Admin\AppData\Local\Temp\cryptowall.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2112
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2112 -s 500
  2⤵
  - Program crash
  PID:3144

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2112 -ip 2112
1⤵
PID:3940

C:\Users\Admin\AppData\Local\Temp\cryptowall.exe
"C:\Users\Admin\AppData\Local\Temp\cryptowall.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4372
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 472
  2⤵
  - Program crash
  PID:2012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4372 -ip 4372
1⤵
PID:232

Network

MITRE ATT&CK Matrix

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