3d4869eb1194f6443ed82497639778bdec6144c68fa619ee5db28f40cac88767

General

Target

278353d75d65518b2e314e11f78a80d5.exe
Size

9KB
MD5

278353d75d65518b2e314e11f78a80d5
SHA1

4e75e986a763dabce1ae5b78cfeb25e8c682228a
SHA256

3d4869eb1194f6443ed82497639778bdec6144c68fa619ee5db28f40cac88767
SHA512

abca3dd3240a59d419052c5fa28b5b2d22d6e430f57d9c12a8683260d9e41fc4fa8e3eea483ee0e0292e1fddbaae9f70f97ef78349e6ee384d74abd226d1e2d1
SSDEEP

192:Tb5OGSHUawxokr597j9/lhntUASVgqSB:TFO8apGRjtxVSsB

Score

10^/10

adware persistence stealer upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe"	278353d75d65518b2e314e11f78a80d5.exe

Drops file in Drivers directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\drivers\spools.exe	278353d75d65518b2e314e11f78a80d5.exe
File opened for modification	C:\Windows\SysWOW64\drivers\spools.exe	278353d75d65518b2e314e11f78a80d5.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Schedule\ImagePath = "C:\\Windows\\system32\\drivers\\spools.exe"	278353d75d65518b2e314e11f78a80d5.exe

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Users\\Admin\\cftmon.exe \"%1\" %*"	278353d75d65518b2e314e11f78a80d5.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2232-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/2232-3-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Adds Run key to start application 2 TTPs 10 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\OptionalComponents\MAPI	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\OptionalComponents\MSFS	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\OptionalComponents	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe"	278353d75d65518b2e314e11f78a80d5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\cftmon.exe"	278353d75d65518b2e314e11f78a80d5.exe
Key deleted	\REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\OptionalComponents\IMAIL	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\cftmon.exe"	278353d75d65518b2e314e11f78a80d5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe"	278353d75d65518b2e314e11f78a80d5.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	reg.exe

Installs/modifies Browser Helper Object 2 TTPs 4 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{18DF081C-E8AD-4283-A596-FA578C2EBDC3}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{72853161-30C5-4D22-B7F9-0BBC1D38A37E}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{B4F3A835-0E21-4959-BA22-42B3008E02FF}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects	reg.exe

Modifies WinLogon 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\UIHost = "logonui.exe"	278353d75d65518b2e314e11f78a80d5.exe

Modifies registry class 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Users\\Admin\\cftmon.exe \"%1\" %*"	278353d75d65518b2e314e11f78a80d5.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2856	2232	278353d75d65518b2e314e11f78a80d5.exe	28
PID 2232 wrote to memory of 2856	2232	278353d75d65518b2e314e11f78a80d5.exe	28
PID 2232 wrote to memory of 2856	2232	278353d75d65518b2e314e11f78a80d5.exe	28
PID 2232 wrote to memory of 2856	2232	278353d75d65518b2e314e11f78a80d5.exe	28
PID 2232 wrote to memory of 2516	2232	278353d75d65518b2e314e11f78a80d5.exe	29
PID 2232 wrote to memory of 2516	2232	278353d75d65518b2e314e11f78a80d5.exe	29
PID 2232 wrote to memory of 2516	2232	278353d75d65518b2e314e11f78a80d5.exe	29
PID 2232 wrote to memory of 2516	2232	278353d75d65518b2e314e11f78a80d5.exe	29
PID 2232 wrote to memory of 2776	2232	278353d75d65518b2e314e11f78a80d5.exe	32
PID 2232 wrote to memory of 2776	2232	278353d75d65518b2e314e11f78a80d5.exe	32
PID 2232 wrote to memory of 2776	2232	278353d75d65518b2e314e11f78a80d5.exe	32
PID 2232 wrote to memory of 2776	2232	278353d75d65518b2e314e11f78a80d5.exe	32

C:\Users\Admin\AppData\Local\Temp\278353d75d65518b2e314e11f78a80d5.exe
"C:\Users\Admin\AppData\Local\Temp\278353d75d65518b2e314e11f78a80d5.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in Drivers directory
- Sets service image path in registry
- Modifies system executable filetype association
- Adds Run key to start application
- Modifies WinLogon
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Windows\SysWOW64\reg.exe
  reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects" /f
  2⤵
  - Installs/modifies Browser Helper Object
  PID:2856
- C:\Windows\SysWOW64\reg.exe
  reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /f
  2⤵
  - Adds Run key to start application
  PID:2516
- C:\Windows\SysWOW64\reg.exe
  reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /f
  2⤵
  - Adds Run key to start application
  PID:2776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

4

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Winlogon Helper DLL

Browser Extensions

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

4

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Winlogon Helper DLL

2

T1547.004

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Defense Evasion

Modify Registry

6

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2232-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2232-3-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads