a44f7d6b33377a416d2113ae4a97f36a78773da323c42ee2d3efade09a44c54f

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

4808 RTPCS5S.exe

pid	process
4808	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
952	CF߱ѪBUGѪ+һݵع_se.exe
952	CF߱ѪBUGѪ+һݵع_se.exe
952	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-1-5-21-2295526160-1155304984-640977766-1000\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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Start Page = "www.2345.com/?keyybc"	CF߱ѪBUGѪ+һݵع_se.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

CF߱ѪBUGѪ+һݵع_se.exe

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

Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

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

pid	process
952	CF߱ѪBUGѪ+һݵع_se.exe
952	CF߱ѪBUGѪ+һݵع_se.exe
4808	RTPCS5S.exe
4808	RTPCS5S.exe
4808	RTPCS5S.exe
4808	RTPCS5S.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

CF߱ѪBUGѪ+һݵع_se.exe

description	pid	process	target process
PID 952 wrote to memory of 4808	952	CF߱ѪBUGѪ+һݵع_se.exe	RTPCS5S.exe
PID 952 wrote to memory of 4808	952	CF߱ѪBUGѪ+һݵع_se.exe	RTPCS5S.exe
PID 952 wrote to memory of 4808	952	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⤵
- 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:952

C:\Windows\SysWOW64\RTPCS5S.exe
C:\Windows\system32\/RTPCS5S.exe
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:4808

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

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

MD5
b2d6bacc36f7bd353333e0b420f26d40

SHA1
fc6d42b77e8d897fc5c871d89aa7a646c43a7394

SHA256
6f5451d9d64e6b0c45a17ef0f418f2d43995e2ca384786fb7ccabd49210544bc

SHA512
bb840dd25e808a434fa5934d33c64fd94ae1946412e97f72d9c6e06e3cf85d2783d9ded3cb75e38ea42671b178a45fde1124acddce286508aba6e9e0e58746a1

Download Submit
memory/952-1482-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/952-1484-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/952-137-0x0000000075A90000-0x0000000075B0A000-memory.dmp

Filesize
488KB

Download
memory/952-1479-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/952-1480-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/952-1481-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/952-132-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/952-136-0x00000000758C0000-0x0000000075A60000-memory.dmp

Filesize
1.6MB

Download
memory/952-1485-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/952-1486-0x00000000024F0000-0x00000000025F0000-memory.dmp

Filesize
1024KB

Download
memory/952-1490-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/952-134-0x00000000750E0000-0x00000000752F5000-memory.dmp

Filesize
2.1MB

Download
memory/952-133-0x0000000077080000-0x0000000077223000-memory.dmp

Filesize
1.6MB

Download
memory/4808-1487-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads