b589b79d19de9389c621142fc05f9bd180a1c84f7d2ee701d6f8ace9e0ccab25

Analysis

max time kernel
133s
max time network
85s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
20/10/2022, 05:18

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General

Target

b589b79d19de9389c621142fc05f9bd180a1c84f7d2ee701d6f8ace9e0ccab25.dll
Size

1.6MB
MD5

80a52efd0c41ba37770c711fb85ca4f0
SHA1

508a62cdf6835cc78fb90d2a0723bf55e3556b90
SHA256

b589b79d19de9389c621142fc05f9bd180a1c84f7d2ee701d6f8ace9e0ccab25
SHA512

2e59884bf8dfffcefc3ac67d56b399b2a00bd5cefd7cec4be1ad164115b6d41b5547419ff85aa1e4dc82a593a3b2ee7561ad358abc3e30b39c3a1580a21fc025
SSDEEP

3072:G3huG90E7NOkdvaURX0iyUhfImen+ELTD2qnFkscO8Nw0r8usH3:euG9nN91R0iHFI1LTDpeK8Os

Score

8^/10

persistence

Malware Config

Signatures

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SENS\Parameters\ServiceDll = "C:\\PROGRA~3\\asolonaimvir.dat"	rundll32.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~3\rivmianolosa.dat	rundll32.exe
File created	C:\PROGRA~3\asolonaimvir.dat	rundll32.exe
File opened for modification	C:\PROGRA~3\asolonaimvir.dat	rundll32.exe
File created	C:\PROGRA~3\rivmianolosa.dat	rundll32.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Registration\{02D4B3F1-FD88-11D1-960D-00805FC79235}.{EFC5F35C-31A6-4AD2-AF6C-9F45C2635C89}.crmlog	dllhost.exe
File opened for modification	C:\Windows\Registration\{02D4B3F1-FD88-11D1-960D-00805FC79235}.{EFC5F35C-31A6-4AD2-AF6C-9F45C2635C89}.crmlog	dllhost.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
928	rundll32.exe

Suspicious behavior: LoadsDriver 2 IoCs

pid	Process
1072	Process not Found
1072	Process not Found

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	928	rundll32.exe
Token: SeDebugPrivilege	928	rundll32.exe
Token: SeDebugPrivilege	928	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
928	rundll32.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 992 wrote to memory of 928	992	rundll32.exe	27
PID 992 wrote to memory of 928	992	rundll32.exe	27
PID 992 wrote to memory of 928	992	rundll32.exe	27
PID 992 wrote to memory of 928	992	rundll32.exe	27
PID 992 wrote to memory of 928	992	rundll32.exe	27
PID 992 wrote to memory of 928	992	rundll32.exe	27
PID 992 wrote to memory of 928	992	rundll32.exe	27
PID 928 wrote to memory of 596	928	rundll32.exe	26
PID 928 wrote to memory of 1392	928	rundll32.exe	28
PID 928 wrote to memory of 1392	928	rundll32.exe	28
PID 928 wrote to memory of 1392	928	rundll32.exe	28
PID 928 wrote to memory of 1392	928	rundll32.exe	28
PID 1392 wrote to memory of 804	1392	cmd.exe	30
PID 1392 wrote to memory of 804	1392	cmd.exe	30
PID 1392 wrote to memory of 804	1392	cmd.exe	30
PID 1392 wrote to memory of 804	1392	cmd.exe	30
PID 804 wrote to memory of 536	804	net.exe	31
PID 804 wrote to memory of 536	804	net.exe	31
PID 804 wrote to memory of 536	804	net.exe	31
PID 804 wrote to memory of 536	804	net.exe	31
PID 928 wrote to memory of 1844	928	rundll32.exe	33
PID 928 wrote to memory of 1844	928	rundll32.exe	33
PID 928 wrote to memory of 1844	928	rundll32.exe	33
PID 928 wrote to memory of 1844	928	rundll32.exe	33
PID 1844 wrote to memory of 1696	1844	cmd.exe	35
PID 1844 wrote to memory of 1696	1844	cmd.exe	35
PID 1844 wrote to memory of 1696	1844	cmd.exe	35
PID 1844 wrote to memory of 1696	1844	cmd.exe	35
PID 1696 wrote to memory of 1668	1696	net.exe	36
PID 1696 wrote to memory of 1668	1696	net.exe	36
PID 1696 wrote to memory of 1668	1696	net.exe	36
PID 1696 wrote to memory of 1668	1696	net.exe	36

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b589b79d19de9389c621142fc05f9bd180a1c84f7d2ee701d6f8ace9e0ccab25.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:992
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b589b79d19de9389c621142fc05f9bd180a1c84f7d2ee701d6f8ace9e0ccab25.dll,#1
  2⤵
  - Sets DLL path for service in the registry
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:928
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c net start COMSysApp
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1392
  - - C:\Windows\SysWOW64\net.exe
      net start COMSysApp
      4⤵
      Suspicious use of WriteProcessMemory
      PID:804
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 start COMSysApp
        5⤵
        
        PID:536
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c net start SENS
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1844
  - - C:\Windows\SysWOW64\net.exe
      net start SENS
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1696
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 start SENS
        5⤵
        
        PID:1668

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch
1⤵
PID:596

C:\Windows\system32\dllhost.exe
C:\Windows\system32\dllhost.exe /Processid:{02D4B3F1-FD88-11D1-960D-00805FC79235}
1⤵
- Drops file in Windows directory
PID:1028

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/928-55-0x0000000076561000-0x0000000076563000-memory.dmp

Filesize
8KB

Download
memory/928-58-0x00000000001F0000-0x000000000021D000-memory.dmp

Filesize
180KB

Download
memory/928-61-0x0000000000320000-0x0000000000346000-memory.dmp

Filesize
152KB

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