bdbb692efdb960e8adaae93b2c1c6af6732afab4b5cbdd4ba6c94a9d74129651

Analysis

max time kernel
129s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2022 09:35

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General

Target

bdbb692efdb960e8adaae93b2c1c6af6732afab4b5cbdd4ba6c94a9d74129651.exe
Size

67KB
MD5

b7e5d97a60fec2db9a30bfb46dca307d
SHA1

c8d9578aca4a4bb528eb8280ae64df5c4b3408ce
SHA256

bdbb692efdb960e8adaae93b2c1c6af6732afab4b5cbdd4ba6c94a9d74129651
SHA512

ee98d4c74c1a6384f7b08692958fd6285834ba5693635106da407751af309263924217320138e84363b1747ededa33f97bdb4330824beb19661a20bf8e781f81
SSDEEP

1536:nn8YjGFzGwPwTFgc0GKf6xzpGG6vKRgau2Cnd3YehTuXAxUva:nnDjXwPwZFLxzp9u5nZYBAxCa

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4116	notepad.exe

Loads dropped DLL 1 IoCs

pid	Process
1156	rundll32.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Common Files\notepad.exe	bdbb692efdb960e8adaae93b2c1c6af6732afab4b5cbdd4ba6c94a9d74129651.exe
File opened for modification	C:\Program Files (x86)\Common Files\notepad.exe	bdbb692efdb960e8adaae93b2c1c6af6732afab4b5cbdd4ba6c94a9d74129651.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1204	1156	WerFault.exe	81

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
4116	notepad.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4056 wrote to memory of 4116	4056	bdbb692efdb960e8adaae93b2c1c6af6732afab4b5cbdd4ba6c94a9d74129651.exe	80
PID 4056 wrote to memory of 4116	4056	bdbb692efdb960e8adaae93b2c1c6af6732afab4b5cbdd4ba6c94a9d74129651.exe	80
PID 4056 wrote to memory of 4116	4056	bdbb692efdb960e8adaae93b2c1c6af6732afab4b5cbdd4ba6c94a9d74129651.exe	80
PID 4116 wrote to memory of 1156	4116	notepad.exe	81
PID 4116 wrote to memory of 1156	4116	notepad.exe	81
PID 4116 wrote to memory of 1156	4116	notepad.exe	81

C:\Users\Admin\AppData\Local\Temp\bdbb692efdb960e8adaae93b2c1c6af6732afab4b5cbdd4ba6c94a9d74129651.exe
"C:\Users\Admin\AppData\Local\Temp\bdbb692efdb960e8adaae93b2c1c6af6732afab4b5cbdd4ba6c94a9d74129651.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4056
- C:\Program Files (x86)\Common Files\notepad.exe
  "C:\Program Files (x86)\Common Files\notepad.exe" C:\Users\Admin\AppData\Local\Temp\bdbb692efdb960e8adaae93b2c1c6af6732afab4b5cbdd4ba6c94a9d74129651.exe
  2⤵
  - Executes dropped EXE
  - Opens file in notepad (likely ransom note)
  - Suspicious use of WriteProcessMemory
  PID:4116
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\CEFD.tmp" "8A'+ [=[SCMR'8[='U"
    3⤵
    - Loads dropped DLL
    PID:1156
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1156 -s 608
      4⤵
      Program crash
      PID:1204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 1156 -ip 1156
1⤵
PID:4460

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Program Files (x86)\Common Files\notepad.exe

Filesize
67KB

MD5
b7e5d97a60fec2db9a30bfb46dca307d

SHA1
c8d9578aca4a4bb528eb8280ae64df5c4b3408ce

SHA256
bdbb692efdb960e8adaae93b2c1c6af6732afab4b5cbdd4ba6c94a9d74129651

SHA512
ee98d4c74c1a6384f7b08692958fd6285834ba5693635106da407751af309263924217320138e84363b1747ededa33f97bdb4330824beb19661a20bf8e781f81

Download Submit
C:\Program Files (x86)\Common Files\notepad.exe

Filesize
67KB

MD5
b7e5d97a60fec2db9a30bfb46dca307d

SHA1
c8d9578aca4a4bb528eb8280ae64df5c4b3408ce

SHA256
bdbb692efdb960e8adaae93b2c1c6af6732afab4b5cbdd4ba6c94a9d74129651

SHA512
ee98d4c74c1a6384f7b08692958fd6285834ba5693635106da407751af309263924217320138e84363b1747ededa33f97bdb4330824beb19661a20bf8e781f81

Download Submit
C:\Users\Admin\AppData\Local\Temp\CEFD.tmp

Filesize
98KB

MD5
fa691bbacc13fc8e58960ef2d5dbe63e

SHA1
48f03e288c3891c9e30b3d936074ae4b235b5137

SHA256
e9426c7cca5c1726c72a10681b4c272d614788275237e4e90d19ba211932c86f

SHA512
d4d6650e39cbd9a699cc7adadd87b40da6e6d750a8576d2b083a244a94392561471f337b2ce492eb3764866f5fe7ded87e4da8cb1c1c6f8685d6a9020f272d34

Download Submit
C:\Users\Admin\AppData\Local\Temp\CEFD.tmp

Filesize
98KB

MD5
fa691bbacc13fc8e58960ef2d5dbe63e

SHA1
48f03e288c3891c9e30b3d936074ae4b235b5137

SHA256
e9426c7cca5c1726c72a10681b4c272d614788275237e4e90d19ba211932c86f

SHA512
d4d6650e39cbd9a699cc7adadd87b40da6e6d750a8576d2b083a244a94392561471f337b2ce492eb3764866f5fe7ded87e4da8cb1c1c6f8685d6a9020f272d34

Download Submit
memory/4056-137-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/4116-136-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download