57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c

General

Target

57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
Size

250KB
MD5

fa5b1320075e0c30211d6790e5cee241
SHA1

6e5606190d7818033426f698a38af87020df5ee8
SHA256

57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c
SHA512

a9b4701e622dc08bdf332a3e5edb8c8ee9264411a5646dcf1e90cf0ef04f2bd4aedf47ce20830a1128121e5489b93d135df70f9d4687c9797f3741e220c8af49
SSDEEP

3072:lIQIeXo3RGgw+xNW8DguW6KL7czkDaO8GnImThqzghHHoEY95xXN+O9Cpw5LxYg3:lvIVN2toK0zat8GzwzkIX1Unw56gaNmD

Score

10^/10

persistence upx

Malware Config

Signatures

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\drivers\\spools.exe \"%1\" %*"	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe

Drops file in Drivers directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\drivers\spools.exe	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
File opened for modification	C:\Windows\SysWOW64\drivers\spools.exe	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Schedule\ImagePath = "C:\\Windows\\system32\\drivers\\spools.exe"	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1760-54-0x0000000000400000-0x0000000001564000-memory.dmp	upx

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe"	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\cftmon.exe"	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe"	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\cftmon.exe"	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe

Enumerates connected drives 3 TTPs 20 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)	\??\I:	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
File opened (read-only)	\??\K:	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
File opened (read-only)	\??\L:	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
File opened (read-only)	\??\R:	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
File opened (read-only)	\??\H:	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
File opened (read-only)	\??\O:	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
File opened (read-only)	\??\W:	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
File opened (read-only)	\??\X:	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
File opened (read-only)	\??\E:	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
File opened (read-only)	\??\F:	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
File opened (read-only)	\??\G:	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
File opened (read-only)	\??\N:	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
File opened (read-only)	\??\Q:	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
File opened (read-only)	\??\V:	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
File opened (read-only)	\??\J:	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
File opened (read-only)	\??\M:	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
File opened (read-only)	\??\P:	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
File opened (read-only)	\??\S:	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
File opened (read-only)	\??\T:	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
File opened (read-only)	\??\U:	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe

Modifies registry class 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\drivers\\spools.exe \"%1\" %*"	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1760 wrote to memory of 480	1760	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe	28
PID 1760 wrote to memory of 480	1760	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe	28
PID 1760 wrote to memory of 480	1760	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe	28
PID 1760 wrote to memory of 480	1760	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe	28
PID 1760 wrote to memory of 1600	1760	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe	30
PID 1760 wrote to memory of 1600	1760	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe	30
PID 1760 wrote to memory of 1600	1760	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe	30
PID 1760 wrote to memory of 1600	1760	57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe	30

C:\Users\Admin\AppData\Local\Temp\57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe
"C:\Users\Admin\AppData\Local\Temp\57f17ef0719691924799495e82a257725cf52ed4ce9bd3aad4a6a640fd92c65c.exe"
1⤵
- Modifies system executable filetype association
- Drops file in Drivers directory
- Sets service image path in registry
- Adds Run key to start application
- Enumerates connected drives
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1760
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c rmdir /S /Q "C:\Users\Admin\Cookies\"
  2⤵
  PID:480
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c rmdir /S /Q "C:\Users\Admin\Application Data\Macromedia\Flash Player\"
  2⤵
  PID:1600

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

1

T1042

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1760-54-0x0000000000400000-0x0000000001564000-memory.dmp

Filesize
17.4MB

Download
memory/1760-57-0x0000000075281000-0x0000000075283000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads