774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610

Analysis

max time kernel
79s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2022, 16:43

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General

Target

774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
Size

64KB
MD5

51be131bf506a2860a3aa854a205945e
SHA1

930dbd34b16adf259e7485952edb0010bfe4dfbb
SHA256

774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610
SHA512

b7e06442243d43a9331b8e087bc7fac7b4f9430abef2b3a96e5629ca167e6c40c1e289e595b3ab1d3b907cceee10b7b7c0c8bf8c2fa130c9d2de999a78e4251c
SSDEEP

1536:V3cpyORJLuB4P4AJJv4Romu/WVaCo91v7MGFhWx:V3c1fP4AJJv45wCE7fFhWx

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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe

Loads dropped DLL 11 IoCs

pid	Process
812	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
812	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
812	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
812	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
812	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
812	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
812	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
812	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
812	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
812	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
812	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\Internet Explorar\Desktop.ini	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
File opened for modification	C:\Program Files (x86)\Microsoft11\Internet Explorar\Desktop.ini	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.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	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
File created	C:\Program Files (x86)\Microsoft11\Internet Explorar\target.lnk	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
File opened for modification	C:\Program Files (x86)\Microsoft11\Internet Explorar\target.lnk	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Internet Explorar\Desktop.ini	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.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	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
File created	C:\Windows\tbgw.ico	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.of\ = "offile"	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\offile\DefaultIcon	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\offile	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\offile\DefaultIcon\ = "%1"	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\offile\shell	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\offile\shell\open\command\ = "explorer \"C:\\Program Files (x86)\\Microsoft%S%S\\Internet Explorar\""	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.of	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\offile\shell\open	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\offile\shell\open\command	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 812 wrote to memory of 4576	812	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe	84
PID 812 wrote to memory of 4576	812	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe	84
PID 812 wrote to memory of 4576	812	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe	84
PID 812 wrote to memory of 268	812	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe	87
PID 812 wrote to memory of 268	812	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe	87
PID 812 wrote to memory of 268	812	774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe	87

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
4576	attrib.exe

C:\Users\Admin\AppData\Local\Temp\774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.exe
"C:\Users\Admin\AppData\Local\Temp\774a21febb638674a4caac0fa8462317e954a863c165062106d7f15b13a7e610.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:812
- 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:4576
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\temp_tmp.bat" "
  2⤵
  PID:268

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nslBC81.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
C:\Users\Admin\AppData\Local\Temp\nslBC81.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
C:\Users\Admin\AppData\Local\Temp\nslBC81.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
C:\Users\Admin\AppData\Local\Temp\nslBC81.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
C:\Users\Admin\AppData\Local\Temp\nslBC81.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
C:\Users\Admin\AppData\Local\Temp\nslBC81.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
C:\Users\Admin\AppData\Local\Temp\nslBC81.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
C:\Users\Admin\AppData\Local\Temp\nslBC81.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
C:\Users\Admin\AppData\Local\Temp\nslBC81.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
C:\Users\Admin\AppData\Local\Temp\nslBC81.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
C:\Users\Admin\AppData\Local\Temp\nslBC81.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
8b6024247e206e5e83823e1aec1ef7fb

SHA1
62c5e8bea9edbbc10c9e955a544bd2d1bca06b1f

SHA256
3b89573b64acd0e21272de2fe14daea69d171cfcfafb778fe91401728dc73f6d

SHA512
8bedafc6dd970853ec5918eb1ca8d9301b5f52174f108b3c4a7b46ed0ed2dbbe7fef77b5e95aac25c43e9e739817c3e811d91d80b7bba4c905b4653d4308eab0

Download Submit
memory/812-142-0x0000000002181000-0x0000000002183000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads