9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51

General

Target

9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe
Size

23KB
MD5

fd3763ea464b31578a91261b514b6951
SHA1

18b608db6051f8ef18011dbb60b9faaeadf1cdb2
SHA256

9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51
SHA512

0685f7e0348f40fbea5dcac32af004d6eb170016513213ab8e1212d0e15241e66e09e97552810eadb96b6bb7d6f89e1454c7809840c25f4cf6dc76b2314a9ce3
SSDEEP

384:lEg0i747wFs/7LIXujQ7RgvDXLiti2rUms+oCESvaJlMCN+cBnlrwms73AJ5ERx:loU48Fs/f61VgLbiY2dLop7xBnl5fe

Score

8^/10

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\drivers\lklosd.sys	rundll32.exe

Executes dropped EXE 1 IoCs

pid	Process
472	koauolte.exe

Sets file execution options in registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Thunder5.exe	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Thunder5.exe\Debugger = "svchost.exe"	rundll32.exe

Deletes itself 1 IoCs

pid	Process
524	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
1168	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe
1168	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\360ary = "C:\\Windows\\system32\\koauolte.exe"	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	koauolte.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\360ary = "C:\\Windows\\system32\\koauolte.exe"	koauolte.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\koauolte.exe	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe
File opened for modification	C:\Windows\SysWOW64\koauolte.exe	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\jiocs.dll	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2044	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe
2044	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe
2044	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe
2044	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe
2012	rundll32.exe
1168	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe
472	koauolte.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2044 wrote to memory of 2012	2044	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe	27
PID 2044 wrote to memory of 2012	2044	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe	27
PID 2044 wrote to memory of 2012	2044	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe	27
PID 2044 wrote to memory of 2012	2044	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe	27
PID 2044 wrote to memory of 2012	2044	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe	27
PID 2044 wrote to memory of 2012	2044	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe	27
PID 2044 wrote to memory of 2012	2044	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe	27
PID 2044 wrote to memory of 1168	2044	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe	28
PID 2044 wrote to memory of 1168	2044	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe	28
PID 2044 wrote to memory of 1168	2044	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe	28
PID 2044 wrote to memory of 1168	2044	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe	28
PID 1168 wrote to memory of 472	1168	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe	29
PID 1168 wrote to memory of 472	1168	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe	29
PID 1168 wrote to memory of 472	1168	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe	29
PID 1168 wrote to memory of 472	1168	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe	29
PID 472 wrote to memory of 1772	472	koauolte.exe	30
PID 472 wrote to memory of 1772	472	koauolte.exe	30
PID 472 wrote to memory of 1772	472	koauolte.exe	30
PID 472 wrote to memory of 1772	472	koauolte.exe	30
PID 1168 wrote to memory of 524	1168	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe	31
PID 1168 wrote to memory of 524	1168	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe	31
PID 1168 wrote to memory of 524	1168	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe	31
PID 1168 wrote to memory of 524	1168	9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe	31

C:\Users\Admin\AppData\Local\Temp\9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe
"C:\Users\Admin\AppData\Local\Temp\9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2044
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\jiocs.dll MyEntryPoint
  2⤵
  - Drops file in Drivers directory
  - Sets file execution options in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:2012
- C:\Users\Admin\AppData\Local\Temp\9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe
  C:\Users\Admin\AppData\Local\Temp\9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1168
- - C:\Windows\SysWOW64\koauolte.exe
    C:\Windows\system32\koauolte.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:472
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c del C:\Windows\system32\koauolte.exe
      4⤵
      PID:1772
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del C:\Users\Admin\AppData\Local\Temp\9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51.exe
    3⤵
    - Deletes itself
    PID:524

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\koauolte.exe

Filesize
23KB

MD5
fd3763ea464b31578a91261b514b6951

SHA1
18b608db6051f8ef18011dbb60b9faaeadf1cdb2

SHA256
9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51

SHA512
0685f7e0348f40fbea5dcac32af004d6eb170016513213ab8e1212d0e15241e66e09e97552810eadb96b6bb7d6f89e1454c7809840c25f4cf6dc76b2314a9ce3

Download Submit
C:\Windows\SysWOW64\koauolte.exe

Filesize
23KB

MD5
fd3763ea464b31578a91261b514b6951

SHA1
18b608db6051f8ef18011dbb60b9faaeadf1cdb2

SHA256
9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51

SHA512
0685f7e0348f40fbea5dcac32af004d6eb170016513213ab8e1212d0e15241e66e09e97552810eadb96b6bb7d6f89e1454c7809840c25f4cf6dc76b2314a9ce3

Download Submit
C:\Windows\jiocs.dll

Filesize
44KB

MD5
a06b31bd249a788da3a89e372feb6901

SHA1
dc71def7a37fe1935152389f38193d3287a06859

SHA256
e01deac57d68a7a76fcd4247f7d8dd063f73046b77e4deae2c58194a203b9d5b

SHA512
07eaa6beedc1b170feabe8d5f277b429fe49851c98031db9d4b901a6ec3e0d44d1210ec435156371c7f1d034a5a1a5540a978dae8cf89dd060ce6aca5a41ddcc

Download Submit
\Windows\SysWOW64\koauolte.exe

Filesize
23KB

MD5
fd3763ea464b31578a91261b514b6951

SHA1
18b608db6051f8ef18011dbb60b9faaeadf1cdb2

SHA256
9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51

SHA512
0685f7e0348f40fbea5dcac32af004d6eb170016513213ab8e1212d0e15241e66e09e97552810eadb96b6bb7d6f89e1454c7809840c25f4cf6dc76b2314a9ce3

Download Submit
\Windows\SysWOW64\koauolte.exe

Filesize
23KB

MD5
fd3763ea464b31578a91261b514b6951

SHA1
18b608db6051f8ef18011dbb60b9faaeadf1cdb2

SHA256
9233e84e9c522b9a3b2a6d9ae8ed2feec24db90fb4b1ae1692e491a83979ba51

SHA512
0685f7e0348f40fbea5dcac32af004d6eb170016513213ab8e1212d0e15241e66e09e97552810eadb96b6bb7d6f89e1454c7809840c25f4cf6dc76b2314a9ce3

Download Submit
memory/2044-54-0x0000000075A11000-0x0000000075A13000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads