6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8

Analysis

max time kernel
40s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
28-10-2022 17:45

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General

Target

6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
Size

64KB
MD5

0b13162bd46c2fce25117defcba2a48d
SHA1

6fa52e15b5d4dfb84bdd4ebca98ab4ed50e745b2
SHA256

6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8
SHA512

19faf8f8da9916cc8e58822c1b404474174f26e4a64b5663a8f3e8d9fa93c9c2529a752a6f093f3f2134af47124b07275c4c4fd853e42bfca3c35f9d19d4b6b3
SSDEEP

1536:V3cpyORJLuB4P4AJJv4Romu/WVaCo91v7MGFhWI:V3c1fP4AJJv45wCE7fFhWI

Score

10^/10

evasion

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe

Deletes itself 1 IoCs

pid	Process
1540	cmd.exe

Loads dropped DLL 9 IoCs

pid	Process
1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\Internet Explorar\Desktop.ini	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
File opened for modification	C:\Program Files (x86)\Microsoft11\Internet Explorar\Desktop.ini	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft11\Internet Explorar\Desktop.ini	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
File created	C:\Program Files (x86)\Microsoft11\Internet Explorar\target.lnk	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
File opened for modification	C:\Program Files (x86)\Microsoft11\Internet Explorar\target.lnk	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Internet Explorar\Desktop.ini	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
File opened for modification	C:\Program Files (x86)\Microsoft11\Internet Explorar	attrib.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\tbgw.ico	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
File opened for modification	C:\Windows\tbgw.ico	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\offile\shell	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\offile\shell\open	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.of\ = "offile"	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\offile\DefaultIcon	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\offile	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\offile\shell\open\command	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.of	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\offile\DefaultIcon\ = "%1"	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\offile\shell\open\command\ = "explorer \"C:\\Program Files (x86)\\Microsoft%S%S\\Internet Explorar\""	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1212 wrote to memory of 1004	1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe	27
PID 1212 wrote to memory of 1004	1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe	27
PID 1212 wrote to memory of 1004	1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe	27
PID 1212 wrote to memory of 1004	1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe	27
PID 1212 wrote to memory of 1004	1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe	27
PID 1212 wrote to memory of 1004	1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe	27
PID 1212 wrote to memory of 1004	1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe	27
PID 1212 wrote to memory of 1540	1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe	30
PID 1212 wrote to memory of 1540	1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe	30
PID 1212 wrote to memory of 1540	1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe	30
PID 1212 wrote to memory of 1540	1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe	30
PID 1212 wrote to memory of 1540	1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe	30
PID 1212 wrote to memory of 1540	1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe	30
PID 1212 wrote to memory of 1540	1212	6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe	30

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
1004	attrib.exe

C:\Users\Admin\AppData\Local\Temp\6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe
"C:\Users\Admin\AppData\Local\Temp\6b83078be0952b3b00ff7783791802fdbecedde041ca0a802f86729ff77a81e8.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Loads dropped DLL
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1212
- C:\Windows\SysWOW64\attrib.exe
  "C:\Windows\System32\attrib.exe" "C:\Program Files (x86)\Microsoft11\Internet Explorar" +s
  2⤵
  - Drops file in Program Files directory
  - Views/modifies file attributes
  PID:1004
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\temp_tmp.bat" "
  2⤵
  - Deletes itself
  PID:1540

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\temp_tmp.bat

Filesize
250B

MD5
ed5f9aa914a78c5f286cf25f8d8a5569

SHA1
0a4c46dc61fa0f23512a12ff5c7f3b9000fa48ce

SHA256
8bb011a1ff32fbedbbe20b6d74600b472033c6a8f75e3e1c5dcabf60b8cfe9eb

SHA512
b2b43affa2348e3908d9699996eb88b18bae438c98900b04a6e587baa6e5afb7a3cb96668f442a21a0ea84103dcc685147b5bc124f1fd0651ab54410136e285f

Download Submit
\Users\Admin\AppData\Local\Temp\nsoEA4.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
\Users\Admin\AppData\Local\Temp\nsoEA4.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
\Users\Admin\AppData\Local\Temp\nsoEA4.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
\Users\Admin\AppData\Local\Temp\nsoEA4.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
\Users\Admin\AppData\Local\Temp\nsoEA4.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
\Users\Admin\AppData\Local\Temp\nsoEA4.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
\Users\Admin\AppData\Local\Temp\nsoEA4.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
\Users\Admin\AppData\Local\Temp\nsoEA4.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
\Users\Admin\AppData\Local\Temp\nsoEA4.tmp\System.dll

Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

Download Submit
memory/1004-55-0x0000000000000000-mapping.dmp

Download
memory/1212-54-0x0000000075E11000-0x0000000075E13000-memory.dmp

Filesize
8KB

Download
memory/1540-66-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads