metasploit | 7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3

General

Target

7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe
Size

255KB
MD5

8a97bd1972cca7c70bde218a0811c13b
SHA1

b27879b9cd1658bc0e7b5b7a04ae0630b95b6437
SHA256

7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3
SHA512

81bdecac9f10eb50af33c9bcf89caebeca2ae3b5feac509e50a6968f879ffc9f23c0a2403c09630de483133fd00f6b38161f37a1bfb50501f2ff8c0edd39b84a
SSDEEP

3072:JkHuQMLUdqtNYqkBd+76jOrXolyYq0hvS0hm4iDDg+pgAQH4+/5Bn6fvRS+QMA:JgahY7kYfhvI4iQ+pmY+/P6fw+QMA

Score

10^/10

metasploit backdoor evasion persistence trojan upx

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Signatures

MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
trojan backdoor metasploit

Modifies firewall policy service 2 TTPs 4 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

igfxcb32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	igfxcb32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxcb32.exe = "C:\\Windows\\SysWOW64\\igfxcb32.exe:*:Enabled:Intel Backup iDrive"	igfxcb32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	igfxcb32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxcb32.exe = "C:\\Windows\\SysWOW64\\igfxcb32.exe:*:Enabled:Intel Backup iDrive"	igfxcb32.exe

Executes dropped EXE 2 IoCs

Processes:

igfxcb32.exeigfxcb32.exe

pid process

952 igfxcb32.exe
944 igfxcb32.exe

pid	process
952	igfxcb32.exe
944	igfxcb32.exe

UPX packed file 13 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/1668-55-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/1668-57-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/1668-58-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/1668-60-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/1668-64-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/1668-65-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/1668-66-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/1668-67-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/1668-72-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/944-85-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/944-86-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/944-87-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/944-88-0x0000000000400000-0x0000000000467000-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

igfxcb32.exe

pid process

944 igfxcb32.exe

pid	process
944	igfxcb32.exe

Loads dropped DLL 2 IoCs

Processes:

7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe

pid	process
1668	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe
1668	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

igfxcb32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	igfxcb32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Intel Backup iDrive = "C:\\Windows\\SysWOW64\\igfxcb32.exe"	igfxcb32.exe

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exeigfxcb32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	igfxcb32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	igfxcb32.exe

Drops file in System32 directory 5 IoCs

Processes:

7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exeigfxcb32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe
File opened for modification	C:\Windows\SysWOW64\igfxcb32.exe	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe
File created	C:\Windows\SysWOW64\igfxcb32.exe	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe
File opened for modification	C:\Windows\SysWOW64\	igfxcb32.exe
File opened for modification	C:\Windows\SysWOW64\igfxcb32.exe	igfxcb32.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exeigfxcb32.exe

description	pid	process	target process
PID 2032 set thread context of 1668	2032	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe
PID 952 set thread context of 944	952	igfxcb32.exe	igfxcb32.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 8 IoCs

Processes:

7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exeigfxcb32.exe

pid	process
1668	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe
1668	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe
944	igfxcb32.exe
944	igfxcb32.exe
944	igfxcb32.exe
944	igfxcb32.exe
944	igfxcb32.exe
944	igfxcb32.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exeigfxcb32.exeigfxcb32.exe

description	pid	process	target process
PID 2032 wrote to memory of 1668	2032	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe
PID 2032 wrote to memory of 1668	2032	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe
PID 2032 wrote to memory of 1668	2032	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe
PID 2032 wrote to memory of 1668	2032	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe
PID 2032 wrote to memory of 1668	2032	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe
PID 2032 wrote to memory of 1668	2032	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe
PID 2032 wrote to memory of 1668	2032	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe
PID 2032 wrote to memory of 1668	2032	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe
PID 1668 wrote to memory of 952	1668	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe	igfxcb32.exe
PID 1668 wrote to memory of 952	1668	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe	igfxcb32.exe
PID 1668 wrote to memory of 952	1668	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe	igfxcb32.exe
PID 1668 wrote to memory of 952	1668	7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe	igfxcb32.exe
PID 952 wrote to memory of 944	952	igfxcb32.exe	igfxcb32.exe
PID 952 wrote to memory of 944	952	igfxcb32.exe	igfxcb32.exe
PID 952 wrote to memory of 944	952	igfxcb32.exe	igfxcb32.exe
PID 952 wrote to memory of 944	952	igfxcb32.exe	igfxcb32.exe
PID 952 wrote to memory of 944	952	igfxcb32.exe	igfxcb32.exe
PID 952 wrote to memory of 944	952	igfxcb32.exe	igfxcb32.exe
PID 952 wrote to memory of 944	952	igfxcb32.exe	igfxcb32.exe
PID 952 wrote to memory of 944	952	igfxcb32.exe	igfxcb32.exe
PID 944 wrote to memory of 1268	944	igfxcb32.exe	Explorer.EXE
PID 944 wrote to memory of 1268	944	igfxcb32.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1268

C:\Users\Admin\AppData\Local\Temp\7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe
"C:\Users\Admin\AppData\Local\Temp\7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2032

C:\Users\Admin\AppData\Local\Temp\7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe
"C:\Users\Admin\AppData\Local\Temp\7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3.exe"
3⤵
- Loads dropped DLL
- Maps connected drives based on registry
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1668

C:\Windows\SysWOW64\igfxcb32.exe
"C:\Windows\SysWOW64\igfxcb32.exe" C:\Users\Admin\AppData\Local\Temp\7EEB83~1.EXE
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:952

C:\Windows\SysWOW64\igfxcb32.exe
"C:\Windows\SysWOW64\igfxcb32.exe" C:\Users\Admin\AppData\Local\Temp\7EEB83~1.EXE
5⤵
- Modifies firewall policy service
- Executes dropped EXE
- Deletes itself
- Adds Run key to start application
- Maps connected drives based on registry
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:944

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\igfxcb32.exe

Filesize
255KB

MD5
8a97bd1972cca7c70bde218a0811c13b

SHA1
b27879b9cd1658bc0e7b5b7a04ae0630b95b6437

SHA256
7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3

SHA512
81bdecac9f10eb50af33c9bcf89caebeca2ae3b5feac509e50a6968f879ffc9f23c0a2403c09630de483133fd00f6b38161f37a1bfb50501f2ff8c0edd39b84a

Download Submit
C:\Windows\SysWOW64\igfxcb32.exe

Filesize
255KB

MD5
8a97bd1972cca7c70bde218a0811c13b

SHA1
b27879b9cd1658bc0e7b5b7a04ae0630b95b6437

SHA256
7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3

SHA512
81bdecac9f10eb50af33c9bcf89caebeca2ae3b5feac509e50a6968f879ffc9f23c0a2403c09630de483133fd00f6b38161f37a1bfb50501f2ff8c0edd39b84a

Download Submit
C:\Windows\SysWOW64\igfxcb32.exe

Filesize
255KB

MD5
8a97bd1972cca7c70bde218a0811c13b

SHA1
b27879b9cd1658bc0e7b5b7a04ae0630b95b6437

SHA256
7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3

SHA512
81bdecac9f10eb50af33c9bcf89caebeca2ae3b5feac509e50a6968f879ffc9f23c0a2403c09630de483133fd00f6b38161f37a1bfb50501f2ff8c0edd39b84a

Download Submit
\Windows\SysWOW64\igfxcb32.exe

Filesize
255KB

MD5
8a97bd1972cca7c70bde218a0811c13b

SHA1
b27879b9cd1658bc0e7b5b7a04ae0630b95b6437

SHA256
7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3

SHA512
81bdecac9f10eb50af33c9bcf89caebeca2ae3b5feac509e50a6968f879ffc9f23c0a2403c09630de483133fd00f6b38161f37a1bfb50501f2ff8c0edd39b84a

Download Submit
\Windows\SysWOW64\igfxcb32.exe

Filesize
255KB

MD5
8a97bd1972cca7c70bde218a0811c13b

SHA1
b27879b9cd1658bc0e7b5b7a04ae0630b95b6437

SHA256
7eeb83d06fdfe62783fcf9ecbb0348e0b4860867e8c9dfbe82fdec7f5e1c87e3

SHA512
81bdecac9f10eb50af33c9bcf89caebeca2ae3b5feac509e50a6968f879ffc9f23c0a2403c09630de483133fd00f6b38161f37a1bfb50501f2ff8c0edd39b84a

Download Submit
memory/944-81-0x000000000044F070-mapping.dmp

Download
memory/944-88-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/944-87-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/944-86-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/944-85-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/952-70-0x0000000000000000-mapping.dmp

Download
memory/1268-89-0x0000000002210000-0x000000000222E000-memory.dmp

Filesize
120KB

Download
memory/1668-58-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1668-60-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1668-63-0x0000000075201000-0x0000000075203000-memory.dmp

Filesize
8KB

Download
memory/1668-72-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1668-57-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1668-55-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1668-54-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1668-61-0x000000000044F070-mapping.dmp

Download
memory/1668-67-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1668-66-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1668-65-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1668-64-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads