49fc3ac3e2f2737dfac36b8daca0e77d842e4909cec5f5aad4c56667c0303b51

Analysis

max time kernel
152s
max time network
172s
platform
windows7_x64
resource
win7-20220414-en
submitted
12-07-2022 14:58

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General

Target

49fc3ac3e2f2737dfac36b8daca0e77d842e4909cec5f5aad4c56667c0303b51.exe
Size

1.2MB
MD5

597f6110fa73a2bad89341afed59cd97
SHA1

f17fe429934d5f23219aa3fda89e078efbd9daf1
SHA256

49fc3ac3e2f2737dfac36b8daca0e77d842e4909cec5f5aad4c56667c0303b51
SHA512

606b1a3d1b21635a1bf2f7a06ead437bedd00797489a88196108c93037d57f8d26c2db825cdb5ebbd6a7d5e7167f1313c2f597c6ea5c007b8aa581bee64cb9ea

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
880	mmcbase.exe
1504	mmcbase.exe
468	mmcbase.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

AutoIT Executable 3 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x000700000001316f-56.dat	autoit_exe
behavioral1/files/0x000700000001316f-59.dat	autoit_exe
behavioral1/files/0x000700000001316f-62.dat	autoit_exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\WinMgmts:\	mmcbase.exe
File opened for modification	C:\Windows\SysWOW64\WinMgmts:\	mmcbase.exe
File opened for modification	C:\Windows\SysWOW64\WinMgmts:\	mmcbase.exe

NTFS ADS 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Local\Temp\WinMgmts:\	49fc3ac3e2f2737dfac36b8daca0e77d842e4909cec5f5aad4c56667c0303b51.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe
1504	mmcbase.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1684	49fc3ac3e2f2737dfac36b8daca0e77d842e4909cec5f5aad4c56667c0303b51.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 880	2040	taskeng.exe	30
PID 2040 wrote to memory of 880	2040	taskeng.exe	30
PID 2040 wrote to memory of 880	2040	taskeng.exe	30
PID 2040 wrote to memory of 880	2040	taskeng.exe	30
PID 2040 wrote to memory of 1504	2040	taskeng.exe	33
PID 2040 wrote to memory of 1504	2040	taskeng.exe	33
PID 2040 wrote to memory of 1504	2040	taskeng.exe	33
PID 2040 wrote to memory of 1504	2040	taskeng.exe	33
PID 2040 wrote to memory of 468	2040	taskeng.exe	34
PID 2040 wrote to memory of 468	2040	taskeng.exe	34
PID 2040 wrote to memory of 468	2040	taskeng.exe	34
PID 2040 wrote to memory of 468	2040	taskeng.exe	34

C:\Users\Admin\AppData\Local\Temp\49fc3ac3e2f2737dfac36b8daca0e77d842e4909cec5f5aad4c56667c0303b51.exe
"C:\Users\Admin\AppData\Local\Temp\49fc3ac3e2f2737dfac36b8daca0e77d842e4909cec5f5aad4c56667c0303b51.exe"
1⤵
- NTFS ADS
- Suspicious behavior: RenamesItself
PID:1684

C:\Windows\system32\taskeng.exe
taskeng.exe {4A04C0CC-E261-4D11-B7AF-1311B2CDDD93} S-1-5-21-2277218442-1199762539-2004043321-1000:AUVQQRRF\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2040
- C:\ProgramData\amd64_microsoft-windows-directui.resources_31bf3856ad364e35_10.0.14393.0_es-es_9b6c370efcbc69d4\mmcbase.exe
  C:\ProgramData\amd64_microsoft-windows-directui.resources_31bf3856ad364e35_10.0.14393.0_es-es_9b6c370efcbc69d4\mmcbase.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  PID:880
- C:\ProgramData\amd64_microsoft-windows-directui.resources_31bf3856ad364e35_10.0.14393.0_es-es_9b6c370efcbc69d4\mmcbase.exe
  C:\ProgramData\amd64_microsoft-windows-directui.resources_31bf3856ad364e35_10.0.14393.0_es-es_9b6c370efcbc69d4\mmcbase.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  PID:1504
- C:\ProgramData\amd64_microsoft-windows-directui.resources_31bf3856ad364e35_10.0.14393.0_es-es_9b6c370efcbc69d4\mmcbase.exe
  C:\ProgramData\amd64_microsoft-windows-directui.resources_31bf3856ad364e35_10.0.14393.0_es-es_9b6c370efcbc69d4\mmcbase.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  PID:468

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Web Service

T1102

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\amd64_microsoft-windows-directui.resources_31bf3856ad364e35_10.0.14393.0_es-es_9b6c370efcbc69d4\mmcbase.exe

Filesize
1.2MB

MD5
597f6110fa73a2bad89341afed59cd97

SHA1
f17fe429934d5f23219aa3fda89e078efbd9daf1

SHA256
49fc3ac3e2f2737dfac36b8daca0e77d842e4909cec5f5aad4c56667c0303b51

SHA512
606b1a3d1b21635a1bf2f7a06ead437bedd00797489a88196108c93037d57f8d26c2db825cdb5ebbd6a7d5e7167f1313c2f597c6ea5c007b8aa581bee64cb9ea

Download Submit
C:\ProgramData\amd64_microsoft-windows-directui.resources_31bf3856ad364e35_10.0.14393.0_es-es_9b6c370efcbc69d4\mmcbase.exe

Filesize
1.2MB

MD5
597f6110fa73a2bad89341afed59cd97

SHA1
f17fe429934d5f23219aa3fda89e078efbd9daf1

SHA256
49fc3ac3e2f2737dfac36b8daca0e77d842e4909cec5f5aad4c56667c0303b51

SHA512
606b1a3d1b21635a1bf2f7a06ead437bedd00797489a88196108c93037d57f8d26c2db825cdb5ebbd6a7d5e7167f1313c2f597c6ea5c007b8aa581bee64cb9ea

Download Submit
C:\ProgramData\amd64_microsoft-windows-directui.resources_31bf3856ad364e35_10.0.14393.0_es-es_9b6c370efcbc69d4\mmcbase.exe

Filesize
1.2MB

MD5
597f6110fa73a2bad89341afed59cd97

SHA1
f17fe429934d5f23219aa3fda89e078efbd9daf1

SHA256
49fc3ac3e2f2737dfac36b8daca0e77d842e4909cec5f5aad4c56667c0303b51

SHA512
606b1a3d1b21635a1bf2f7a06ead437bedd00797489a88196108c93037d57f8d26c2db825cdb5ebbd6a7d5e7167f1313c2f597c6ea5c007b8aa581bee64cb9ea

Download Submit
memory/1684-54-0x00000000754A1000-0x00000000754A3000-memory.dmp

Filesize
8KB

Download