a44f7d6b33377a416d2113ae4a97f36a78773da323c42ee2d3efade09a44c54f

Analysis

max time kernel
41s
max time network
69s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
24-11-2022 21:18

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General

Target

CF߱ѪBUGѪ+һݵع_se.exe
Size

1.8MB
MD5

3d7684528be046a32765faf98f9ad34a
SHA1

ccad496d04468852d6bd8a63d7addddfb79ff6fb
SHA256

7073f4286a30a37b6a0faea483b79c6caa6b23133421757c515ec7388d3d19ee
SHA512

e6dd81e302a3a5e75c48a9132f1c060c474bd8af52012db17b86ab949bbc2ebdf5032980f98efe56d2a52da8d63ff5fabfff2446712d6bf31c10587f600445f1
SSDEEP

49152:yko42EJ0BHqVq+iiTCnTxQCVtPrFbdlzrk4488H:ho5ES+iiTCTxpVtPrFJp7488H

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

RTPCS5S.exe

pid process

1532 RTPCS5S.exe
Loads dropped DLL 2 IoCs

Processes:

CF߱ѪBUGѪ+һݵع_se.exe

pid process

1252 CF߱ѪBUGѪ+һݵع_se.exe
1252 CF߱ѪBUGѪ+һݵع_se.exe

pid	process
1532	RTPCS5S.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

CF߱ѪBUGѪ+һݵع_se.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ÎÒµÄÆô¶¯Ïî = "C:\\Windows\\system32\\/RTPCS5S.exe"	CF߱ѪBUGѪ+һݵع_se.exe

Drops file in System32 directory 1 IoCs

Processes:

CF߱ѪBUGѪ+һݵع_se.exe

description ioc process

File created C:\Windows\SysWOW64\RTPCS5S.exe CF߱ѪBUGѪ+һݵع_se.exe

description	ioc	process
File created	C:\Windows\SysWOW64\RTPCS5S.exe	CF߱ѪBUGѪ+һݵع_se.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs

Processes:

CF߱ѪBUGѪ+һݵع_se.exe

pid	process
1252	CF߱ѪBUGѪ+һݵع_se.exe
1252	CF߱ѪBUGѪ+һݵع_se.exe
1252	CF߱ѪBUGѪ+һݵع_se.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

CF߱ѪBUGѪ+һݵع_se.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main	CF߱ѪBUGѪ+һݵع_se.exe

Modifies Internet Explorer start page 1 TTPs 1 IoCs

stealer

Modify Registry

T1112

Processes:

CF߱ѪBUGѪ+һݵع_se.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main\Start Page = "www.2345.com/?keyybc"	CF߱ѪBUGѪ+һݵع_se.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

CF߱ѪBUGѪ+һݵع_se.exe

pid process

1252 CF߱ѪBUGѪ+һݵع_se.exe

Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

CF߱ѪBUGѪ+һݵع_se.exeRTPCS5S.exe

pid	process
1252	CF߱ѪBUGѪ+һݵع_se.exe
1252	CF߱ѪBUGѪ+һݵع_se.exe
1532	RTPCS5S.exe
1532	RTPCS5S.exe
1532	RTPCS5S.exe
1532	RTPCS5S.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

CF߱ѪBUGѪ+һݵع_se.exe

description	pid	process	target process
PID 1252 wrote to memory of 1532	1252	CF߱ѪBUGѪ+һݵع_se.exe	RTPCS5S.exe
PID 1252 wrote to memory of 1532	1252	CF߱ѪBUGѪ+һݵع_se.exe	RTPCS5S.exe
PID 1252 wrote to memory of 1532	1252	CF߱ѪBUGѪ+һݵع_se.exe	RTPCS5S.exe
PID 1252 wrote to memory of 1532	1252	CF߱ѪBUGѪ+һݵع_se.exe	RTPCS5S.exe

C:\Users\Admin\AppData\Local\Temp\CF߱ѪBUGѪ+һݵع_se.exe
"C:\Users\Admin\AppData\Local\Temp\CF߱ѪBUGѪ+һݵع_se.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Internet Explorer settings
- Modifies Internet Explorer start page
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1252

C:\Windows\SysWOW64\RTPCS5S.exe
C:\Windows\system32\/RTPCS5S.exe
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1532

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\RTPCS5S.exe
Filesize
860KB

MD5
b2d6bacc36f7bd353333e0b420f26d40

SHA1
fc6d42b77e8d897fc5c871d89aa7a646c43a7394

SHA256
6f5451d9d64e6b0c45a17ef0f418f2d43995e2ca384786fb7ccabd49210544bc

SHA512
bb840dd25e808a434fa5934d33c64fd94ae1946412e97f72d9c6e06e3cf85d2783d9ded3cb75e38ea42671b178a45fde1124acddce286508aba6e9e0e58746a1

Download Submit
\Windows\SysWOW64\RTPCS5S.exe
Filesize
860KB

MD5
b2d6bacc36f7bd353333e0b420f26d40

SHA1
fc6d42b77e8d897fc5c871d89aa7a646c43a7394

SHA256
6f5451d9d64e6b0c45a17ef0f418f2d43995e2ca384786fb7ccabd49210544bc

SHA512
bb840dd25e808a434fa5934d33c64fd94ae1946412e97f72d9c6e06e3cf85d2783d9ded3cb75e38ea42671b178a45fde1124acddce286508aba6e9e0e58746a1

Download Submit
\Windows\SysWOW64\RTPCS5S.exe
Filesize
860KB

MD5
b2d6bacc36f7bd353333e0b420f26d40

SHA1
fc6d42b77e8d897fc5c871d89aa7a646c43a7394

SHA256
6f5451d9d64e6b0c45a17ef0f418f2d43995e2ca384786fb7ccabd49210544bc

SHA512
bb840dd25e808a434fa5934d33c64fd94ae1946412e97f72d9c6e06e3cf85d2783d9ded3cb75e38ea42671b178a45fde1124acddce286508aba6e9e0e58746a1

Download Submit
memory/1252-54-0x0000000075091000-0x0000000075093000-memory.dmp

Filesize
8KB

Download
memory/1252-55-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/1252-57-0x0000000076850000-0x0000000076897000-memory.dmp

Filesize
284KB

Download
memory/1252-463-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-465-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-464-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-466-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-467-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-468-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-469-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-470-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-472-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-475-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-476-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-474-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-473-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-471-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-480-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-481-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-479-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-478-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-477-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-486-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-487-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-485-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-484-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-483-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-482-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-489-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-488-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-490-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-492-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-491-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-493-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-494-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-496-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-495-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-497-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-499-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-500-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-498-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-501-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-503-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-502-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-506-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-504-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-505-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-507-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-510-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-509-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-512-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-511-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-508-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-524-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-523-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-522-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-521-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-520-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-519-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-518-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-517-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-516-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-515-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-514-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-513-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-1332-0x00000000008E0000-0x00000000009E0000-memory.dmp

Filesize
1024KB

Download
memory/1252-1333-0x0000000002440000-0x00000000025C1000-memory.dmp

Filesize
1.5MB

Download
memory/1252-4015-0x00000000008E0000-0x00000000009E0000-memory.dmp

Filesize
1024KB

Download
memory/1252-4810-0x0000000002300000-0x0000000002411000-memory.dmp

Filesize
1.1MB

Download
memory/1252-4822-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/1252-4823-0x0000000002120000-0x0000000002221000-memory.dmp

Filesize
1.0MB

Download
memory/1252-4824-0x00000000025D0000-0x0000000002671000-memory.dmp

Filesize
644KB

Download
memory/1252-4825-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/1532-4819-0x0000000000000000-mapping.dmp

Download