metasploit | cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c

General

Target

cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
Size

245KB
MD5

bc09fe65df4c3c4f72fab57a32d6321e
SHA1

2c6c7f902da3c8aba207dd548b094d64c22f08d9
SHA256

cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c
SHA512

41c25a4ee4873e1274fd3159d27503a5c4c7057da05bb07357eddc33fc7adeaac97a079f47d549538d7fcbbf290d0abfec36da4c5172d8c7e50ef9a4b0b76089
SSDEEP

6144:jpuYPcJ3XpDq8InaUjsqCfs0TcTvT2w+703B8:jpmn8naDqCU0YTI03m

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:

wmptb64.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmptb64.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmptb64.exe = "C:\\Windows\\SysWOW64\\wmptb64.exe:*:Enabled:Windows Media Protocal"	wmptb64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmptb64.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmptb64.exe = "C:\\Windows\\SysWOW64\\wmptb64.exe:*:Enabled:Windows Media Protocal"	wmptb64.exe

Executes dropped EXE 2 IoCs

Processes:

wmptb64.exewmptb64.exe

pid process

536 wmptb64.exe
1300 wmptb64.exe

pid	process
536	wmptb64.exe
1300	wmptb64.exe

UPX packed file 13 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1932-55-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/1932-57-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/1932-58-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/1932-60-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/1932-64-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/1932-65-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/1932-66-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/1932-67-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/1932-72-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/1300-85-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/1300-86-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/1300-87-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/1300-88-0x0000000000400000-0x0000000000465000-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

wmptb64.exe

pid process

1300 wmptb64.exe

pid	process
1300	wmptb64.exe

Loads dropped DLL 2 IoCs

Processes:

cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe

pid	process
1932	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
1932	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wmptb64.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Media Protocal = "C:\\Windows\\SysWOW64\\wmptb64.exe"	wmptb64.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	wmptb64.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:

wmptb64.execc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	wmptb64.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmptb64.exe

Drops file in System32 directory 5 IoCs

Processes:

cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exewmptb64.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
File opened for modification	C:\Windows\SysWOW64\wmptb64.exe	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
File created	C:\Windows\SysWOW64\wmptb64.exe	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
File opened for modification	C:\Windows\SysWOW64\	wmptb64.exe
File opened for modification	C:\Windows\SysWOW64\wmptb64.exe	wmptb64.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exewmptb64.exe

description	pid	process	target process
PID 940 set thread context of 1932	940	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
PID 536 set thread context of 1300	536	wmptb64.exe	wmptb64.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

Processes:

cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exewmptb64.exe

pid	process
1932	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
1932	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
1300	wmptb64.exe
1300	wmptb64.exe
1300	wmptb64.exe
1300	wmptb64.exe
1300	wmptb64.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.execc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exewmptb64.exewmptb64.exe

description	pid	process	target process
PID 940 wrote to memory of 1932	940	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
PID 940 wrote to memory of 1932	940	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
PID 940 wrote to memory of 1932	940	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
PID 940 wrote to memory of 1932	940	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
PID 940 wrote to memory of 1932	940	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
PID 940 wrote to memory of 1932	940	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
PID 940 wrote to memory of 1932	940	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
PID 940 wrote to memory of 1932	940	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
PID 1932 wrote to memory of 536	1932	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe	wmptb64.exe
PID 1932 wrote to memory of 536	1932	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe	wmptb64.exe
PID 1932 wrote to memory of 536	1932	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe	wmptb64.exe
PID 1932 wrote to memory of 536	1932	cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe	wmptb64.exe
PID 536 wrote to memory of 1300	536	wmptb64.exe	wmptb64.exe
PID 536 wrote to memory of 1300	536	wmptb64.exe	wmptb64.exe
PID 536 wrote to memory of 1300	536	wmptb64.exe	wmptb64.exe
PID 536 wrote to memory of 1300	536	wmptb64.exe	wmptb64.exe
PID 536 wrote to memory of 1300	536	wmptb64.exe	wmptb64.exe
PID 536 wrote to memory of 1300	536	wmptb64.exe	wmptb64.exe
PID 536 wrote to memory of 1300	536	wmptb64.exe	wmptb64.exe
PID 536 wrote to memory of 1300	536	wmptb64.exe	wmptb64.exe
PID 1300 wrote to memory of 1276	1300	wmptb64.exe	Explorer.EXE
PID 1300 wrote to memory of 1276	1300	wmptb64.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1276

C:\Users\Admin\AppData\Local\Temp\cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
"C:\Users\Admin\AppData\Local\Temp\cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:940

C:\Users\Admin\AppData\Local\Temp\cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
"C:\Users\Admin\AppData\Local\Temp\cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe"
3⤵
- Loads dropped DLL
- Maps connected drives based on registry
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1932

C:\Windows\SysWOW64\wmptb64.exe
"C:\Windows\SysWOW64\wmptb64.exe" C:\Users\Admin\AppData\Local\Temp\CC711D~1.EXE
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:536

C:\Windows\SysWOW64\wmptb64.exe
"C:\Windows\SysWOW64\wmptb64.exe" C:\Users\Admin\AppData\Local\Temp\CC711D~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:1300

Network

MITRE ATT&CK Matrix ATT&CK 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

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Windows\SysWOW64\wmptb64.exe
Filesize
245KB

MD5
bc09fe65df4c3c4f72fab57a32d6321e

SHA1
2c6c7f902da3c8aba207dd548b094d64c22f08d9

SHA256
cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c

SHA512
41c25a4ee4873e1274fd3159d27503a5c4c7057da05bb07357eddc33fc7adeaac97a079f47d549538d7fcbbf290d0abfec36da4c5172d8c7e50ef9a4b0b76089

Download Submit
C:\Windows\SysWOW64\wmptb64.exe
Filesize
245KB

MD5
bc09fe65df4c3c4f72fab57a32d6321e

SHA1
2c6c7f902da3c8aba207dd548b094d64c22f08d9

SHA256
cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c

SHA512
41c25a4ee4873e1274fd3159d27503a5c4c7057da05bb07357eddc33fc7adeaac97a079f47d549538d7fcbbf290d0abfec36da4c5172d8c7e50ef9a4b0b76089

Download Submit
C:\Windows\SysWOW64\wmptb64.exe
Filesize
245KB

MD5
bc09fe65df4c3c4f72fab57a32d6321e

SHA1
2c6c7f902da3c8aba207dd548b094d64c22f08d9

SHA256
cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c

SHA512
41c25a4ee4873e1274fd3159d27503a5c4c7057da05bb07357eddc33fc7adeaac97a079f47d549538d7fcbbf290d0abfec36da4c5172d8c7e50ef9a4b0b76089

Download Submit
\Windows\SysWOW64\wmptb64.exe
Filesize
245KB

MD5
bc09fe65df4c3c4f72fab57a32d6321e

SHA1
2c6c7f902da3c8aba207dd548b094d64c22f08d9

SHA256
cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c

SHA512
41c25a4ee4873e1274fd3159d27503a5c4c7057da05bb07357eddc33fc7adeaac97a079f47d549538d7fcbbf290d0abfec36da4c5172d8c7e50ef9a4b0b76089

Download Submit
\Windows\SysWOW64\wmptb64.exe
Filesize
245KB

MD5
bc09fe65df4c3c4f72fab57a32d6321e

SHA1
2c6c7f902da3c8aba207dd548b094d64c22f08d9

SHA256
cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c

SHA512
41c25a4ee4873e1274fd3159d27503a5c4c7057da05bb07357eddc33fc7adeaac97a079f47d549538d7fcbbf290d0abfec36da4c5172d8c7e50ef9a4b0b76089

Download Submit
memory/536-70-0x0000000000000000-mapping.dmp

Download
memory/1276-89-0x00000000029C0000-0x00000000029DE000-memory.dmp

Filesize
120KB

Download
memory/1300-81-0x00000000004508F0-mapping.dmp

Download
memory/1300-85-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/1300-88-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/1300-87-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/1300-86-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/1932-63-0x00000000757E1000-0x00000000757E3000-memory.dmp

Filesize
8KB

Download
memory/1932-60-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/1932-61-0x00000000004508F0-mapping.dmp

Download
memory/1932-72-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/1932-58-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/1932-57-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/1932-54-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/1932-65-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/1932-64-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/1932-67-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/1932-66-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/1932-55-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads