983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f

Analysis

max time kernel
187s
max time network
197s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
06/12/2022, 00:06

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General

Target

983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
Size

63KB
MD5

fd04a8f9375e51deaaa0a605ff2fb5d9
SHA1

dfe8bf30ac21192dba5126bc46dc2cba772ba2c4
SHA256

983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f
SHA512

2ec7e3932c0677908a87208f1ef924b41cfaedc13240fffae0244b4d710a8fb0197facd7385f74e2766f5a08f9dabe61897166d95e12902623cb07f5261cf10c
SSDEEP

1536:V3cpyORJLuB4P4AJJv4Romu/h8IxLz9ifL9diqFE:V3c1fP4AJJv45E8IxLzk9EF

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-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe

Loads dropped DLL 11 IoCs

pid	Process
4556	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
4556	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
4556	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
4556	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
4556	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
4556	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
4556	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
4556	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
4556	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
4556	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
4556	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft11\Internet Explorar\Desktop.ini	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Internet Explorar\Desktop.ini	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.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	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
File created	C:\Program Files (x86)\Microsoft11\Internet Explorar\target.lnk	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
File opened for modification	C:\Program Files (x86)\Microsoft11\Internet Explorar\target.lnk	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Internet Explorar\Desktop.ini	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.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 opened for modification	C:\Windows\tbgw.ico	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
File created	C:\Windows\tbgw.ico	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.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\open\command	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\offile\shell\open	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\offile\shell\open\command\ = "explorer \"C:\\Program Files (x86)\\Microsoft%S%S\\Internet Explorar\""	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.of	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.of\ = "offile"	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\offile\DefaultIcon	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\offile	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\offile\DefaultIcon\ = "%1"	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\offile\shell	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4556 wrote to memory of 4588	4556	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe	83
PID 4556 wrote to memory of 4588	4556	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe	83
PID 4556 wrote to memory of 4588	4556	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe	83
PID 4556 wrote to memory of 3980	4556	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe	86
PID 4556 wrote to memory of 3980	4556	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe	86
PID 4556 wrote to memory of 3980	4556	983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe	86

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
4588	attrib.exe

C:\Users\Admin\AppData\Local\Temp\983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe
"C:\Users\Admin\AppData\Local\Temp\983545df0feabc12f631636dc6a620e69c89923ac6a834d1268ce2e3aa073a5f.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Checks computer location settings
- 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:4556
- 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:4588
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\temp_tmp.bat" "
  2⤵
  PID:3980

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nst4F99.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst4F99.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst4F99.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst4F99.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst4F99.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst4F99.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst4F99.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst4F99.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst4F99.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst4F99.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst4F99.tmp\System.dll

Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

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

Filesize
250B

MD5
9fe52964601018f2a839c1aba395fb44

SHA1
068c514f2461f7d3b177466a144ec3b71f35a61d

SHA256
de7ae1a25316ee71492e0e908e7b74eb6598cc91bcc59720ec70ddb2ba63158a

SHA512
12af2d59de5dce3855984f5dee7d8fde5e0eea21df9405e88d7eaf12e52c48350dcdd49fddb8a5f8334d9f18b9afdfde26784a35db2c8ee9fdb9153cdfcb5b28

Download Submit
memory/4556-142-0x00000000022A1000-0x00000000022A3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads