cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9

General

Target

cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe
Size

55KB
MD5

8231250a9dcfc08a5e7a846fc0d2af82
SHA1

6e6c002c605a584568a78fe99cf6bda9d4a1b77a
SHA256

cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9
SHA512

ee17c81ecc82709add1e16b7d28ff913f71fc1fceb3475576d374437580d40c682062eebad9ff76dc431ff288188b8a0a3874ab1ece7c3c1352bfd10880e7496
SSDEEP

768:Oe3PFaDVyOQgljLDKRJyM3BmsHzSB4us/wJJapg4RoSMZeUZB/aEQGlpGKCqbHd:V3cpyORJLuB4P4AJJv4Romu/DQGlpvCu

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"	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe

Deletes itself 1 IoCs

pid	Process
1780	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
1964	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft1\Internat Explorer\Desktop.ini	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft1\Internat Explorer\Desktop.ini	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe
File created	C:\Program Files (x86)\Microsoft1\Internat Explorer\target.lnk	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe
File opened for modification	C:\Program Files (x86)\Microsoft1\Internat Explorer	attrib.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\.og	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.og\ = "ogfile"	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ogfile	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ogfile\DefaultIcon\ = "%1"	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ogfile\DefaultIcon	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ogfile\shell\open\command	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ogfile\shell	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ogfile\shell\open	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ogfile\shell\open\command\ = "explorer \"C:\\Program Files (x86)\\Microsoft%S\\Internat Explorer\""	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 2016	1964	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe	28
PID 1964 wrote to memory of 2016	1964	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe	28
PID 1964 wrote to memory of 2016	1964	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe	28
PID 1964 wrote to memory of 2016	1964	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe	28
PID 1964 wrote to memory of 2016	1964	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe	28
PID 1964 wrote to memory of 2016	1964	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe	28
PID 1964 wrote to memory of 2016	1964	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe	28
PID 1964 wrote to memory of 1780	1964	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe	31
PID 1964 wrote to memory of 1780	1964	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe	31
PID 1964 wrote to memory of 1780	1964	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe	31
PID 1964 wrote to memory of 1780	1964	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe	31
PID 1964 wrote to memory of 1780	1964	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe	31
PID 1964 wrote to memory of 1780	1964	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe	31
PID 1964 wrote to memory of 1780	1964	cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe	31

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
2016	attrib.exe

C:\Users\Admin\AppData\Local\Temp\cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe
"C:\Users\Admin\AppData\Local\Temp\cb62a73a4d10b80187adb2a32d9e084658c361ca9b8919fb5ffb7c39185100f9.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Loads dropped DLL
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Windows\SysWOW64\attrib.exe
  "C:\Windows\System32\attrib.exe" "C:\Program Files (x86)\Microsoft1\Internat Explorer" +s
  2⤵
  - Drops file in Program Files directory
  - Views/modifies file attributes
  PID:2016
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\temp_tmp.bat" "
  2⤵
  - Deletes itself
  PID:1780

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

2

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
250B

MD5
423dde712f766e2975ca1968e682fa8a

SHA1
1325896a6b5db19dc7887e3483161685f2257259

SHA256
ffbfa27e2d9d78d262206291f02fe8de441c23d573dcd5631c7e2923817ff008

SHA512
d53265796d10e17a7ffd4c4bd372deb4f3b128efdcbb7d99f4d562375e1c3380534559838249c9f79983fad6f7cbc7bd704d021d1e78745cb1488aeb29809ad0

Download Submit
\Users\Admin\AppData\Local\Temp\nsoF0C8.tmp\System.dll

Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

Download Submit
memory/1780-58-0x0000000000000000-mapping.dmp

Download
memory/1964-54-0x0000000076411000-0x0000000076413000-memory.dmp

Filesize
8KB

Download
memory/2016-55-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads