5a2b97d8ded2fc70a3cc4c767a4e4e44337e2e0ef1440c1608dda3f87d436f06

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06/03/2024, 15:28

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General

Target

b7be221d96dddd3ca71f41bb0c268b12.exe
Size

27KB
MD5

b7be221d96dddd3ca71f41bb0c268b12
SHA1

5829f0b4a7cc162dce361d60314b39ee6cbaea22
SHA256

5a2b97d8ded2fc70a3cc4c767a4e4e44337e2e0ef1440c1608dda3f87d436f06
SHA512

8ce7b791b71f0b4c6cc5245da9a6c428d8ff0328fe662415dec2d5daa7dac1cc88d57fb397cc4ba73ea97d88758c1049ad8ef8b0c14ee27cf7479a1defc37d77
SSDEEP

768:LrXJcX8W8qBQEF/kRRJsnhjQcBwsJvNs5gxxTOiR:LrXS1iAEunhQcZsyxS6

Score

8^/10

persistence

Malware Config

Signatures

Sets file execution options in registry 2 TTPs 64 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KWatchUI.EXE	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\NVC95.EXE	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\IAMSERV.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\FPROT.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\CLEANER3.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AVP.EXE	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rising.exe	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Logo_1.exe\Debugger = "c:\\\\xue.exe"	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\SPHINX.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\F-PROT.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\VSCAN40.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\CLAW95.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\BLACKICE.EXE	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\PFW.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\PAVSCHED.EXE	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ICLOAD95.EXE	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Navapw32.exe\Debugger = "c:\\\\xue.exe"	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Navapsvc.exe	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\EGHOST.EXE	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\VSSTAT.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\JEDI.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\IAMAPP.EXE	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KVMonXP.kxp\Debugger = "c:\\\\xue.exe"	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\SCRSCAN.EXE	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ECENGINE.EXE	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ECENGINE.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KVSrvXP.exe	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\SWEEP95.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\PAVCL.EXE	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ICSUPPNT.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AUTODOWN.EXE	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\VETTRAY.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\SMC.EXE	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\SCAN32.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RAV7.EXE	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\NAVNT.EXE	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ICMON.EXE	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\TDS2-98.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\SCAN95.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\FESCUE.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\PERSFW.EXE	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\IBMAVSP.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AVWUPD32.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AVP32.EXE	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AVP32.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\SCANPM.EXE	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\PERSFW.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\FRW.EXE	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\CLAW95CF.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\navw32.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\VSECOMR.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\NORMIST.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MPFTRAY.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\CLEANER.EXE	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AVGCTRL.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Logo1_.exe	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RAV7WIN.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\NUPGRADE.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ICLOADNT.EXE	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AVSCHED32.EXE	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\navw32.EXE	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\NVC95.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\F-AGNT95.EXE	clfmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\CFIAUDIT.EXE\Debugger = "c:\\\\xue.exe"	clfmon.exe

Executes dropped EXE 1 IoCs

pid	Process
3508	clfmon.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\TBMExe = "C:\\Windows\\Fonts\\6d9f33f42e574309ce13d687b4ea1d79\\system\\clfmon.exe"	clfmon.exe

Enumerates connected drives 3 TTPs 22 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\M:	clfmon.exe
File opened (read-only)	\??\O:	clfmon.exe
File opened (read-only)	\??\P:	clfmon.exe
File opened (read-only)	\??\Q:	clfmon.exe
File opened (read-only)	\??\S:	clfmon.exe
File opened (read-only)	\??\E:	clfmon.exe
File opened (read-only)	\??\G:	clfmon.exe
File opened (read-only)	\??\L:	clfmon.exe
File opened (read-only)	\??\T:	clfmon.exe
File opened (read-only)	\??\U:	clfmon.exe
File opened (read-only)	\??\K:	clfmon.exe
File opened (read-only)	\??\R:	clfmon.exe
File opened (read-only)	\??\Y:	clfmon.exe
File opened (read-only)	\??\Z:	clfmon.exe
File opened (read-only)	\??\B:	clfmon.exe
File opened (read-only)	\??\H:	clfmon.exe
File opened (read-only)	\??\I:	clfmon.exe
File opened (read-only)	\??\V:	clfmon.exe
File opened (read-only)	\??\X:	clfmon.exe
File opened (read-only)	\??\J:	clfmon.exe
File opened (read-only)	\??\N:	clfmon.exe
File opened (read-only)	\??\W:	clfmon.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Fonts\6d9f33f42e574309ce13d687b4ea1d79\system\clfmon.exe	b7be221d96dddd3ca71f41bb0c268b12.exe
File created	C:\Windows\Fonts\6d9f33f42e574309ce13d687b4ea1d79\system\clfmon.exe	b7be221d96dddd3ca71f41bb0c268b12.exe

Modifies Control Panel 5 IoCs

evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\Cursors\Arrow = "%SYSTEMROOT%\\Cursors\\arrow_m.cur"	clfmon.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\Cursors\AppStarting	clfmon.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\Cursors\Arrow	clfmon.exe
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\Cursors\	clfmon.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\Cursors\AppStarting = "%SYSTEMROOT%\\Cursors\\arrow_m.cur"	clfmon.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3508	clfmon.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4120	b7be221d96dddd3ca71f41bb0c268b12.exe
Token: SeDebugPrivilege	3508	clfmon.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4120 wrote to memory of 3508	4120	b7be221d96dddd3ca71f41bb0c268b12.exe	91
PID 4120 wrote to memory of 3508	4120	b7be221d96dddd3ca71f41bb0c268b12.exe	91
PID 4120 wrote to memory of 3508	4120	b7be221d96dddd3ca71f41bb0c268b12.exe	91
PID 4120 wrote to memory of 3876	4120	b7be221d96dddd3ca71f41bb0c268b12.exe	93
PID 4120 wrote to memory of 3876	4120	b7be221d96dddd3ca71f41bb0c268b12.exe	93
PID 4120 wrote to memory of 3876	4120	b7be221d96dddd3ca71f41bb0c268b12.exe	93
PID 3876 wrote to memory of 2308	3876	cmd.exe	95
PID 3876 wrote to memory of 2308	3876	cmd.exe	95
PID 3876 wrote to memory of 2308	3876	cmd.exe	95

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2308	attrib.exe

C:\Users\Admin\AppData\Local\Temp\b7be221d96dddd3ca71f41bb0c268b12.exe
"C:\Users\Admin\AppData\Local\Temp\b7be221d96dddd3ca71f41bb0c268b12.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4120
- C:\Windows\Fonts\6d9f33f42e574309ce13d687b4ea1d79\system\clfmon.exe
  C:\Windows\Fonts\6d9f33f42e574309ce13d687b4ea1d79\system\clfmon.exe
  2⤵
  - Sets file execution options in registry
  - Executes dropped EXE
  - Adds Run key to start application
  - Enumerates connected drives
  - Modifies Control Panel
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:3508
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\b7be221d96dddd3ca71f41bb0c268b12.exe.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3876
- - C:\Windows\SysWOW64\attrib.exe
    attrib -s -h -a "C:\Users\Admin\AppData\Local\Temp\b7be221d96dddd3ca71f41bb0c268b12.exe"
    3⤵
    - Views/modifies file attributes
    PID:2308

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\b7be221d96dddd3ca71f41bb0c268b12.exe.bat

Filesize
348B

MD5
e3c3aff310f0a1c1a6fc7f3b8e9d289a

SHA1
f3fa996936581c1698903d299e9032f258487d29

SHA256
9227658cda01d42780d343b1b9d215c81fa8bf451a7f0c96026c03f36a9577cb

SHA512
1809ed2dc03d98d51eaf5005e52f4d9546f8310247d4b4af95c1fec9f80a991e96fe1e672b672024a3e33e671785e71082209d7a5c04a8d48a3f69faaffe6830

Download Submit
C:\Windows\Fonts\6d9f33f42e574309ce13d687b4ea1d79\system\clfmon.exe

Filesize
27KB

MD5
b7be221d96dddd3ca71f41bb0c268b12

SHA1
5829f0b4a7cc162dce361d60314b39ee6cbaea22

SHA256
5a2b97d8ded2fc70a3cc4c767a4e4e44337e2e0ef1440c1608dda3f87d436f06

SHA512
8ce7b791b71f0b4c6cc5245da9a6c428d8ff0328fe662415dec2d5daa7dac1cc88d57fb397cc4ba73ea97d88758c1049ad8ef8b0c14ee27cf7479a1defc37d77

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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