270f8e7c30ebdbf8c1e642e4c7dd5eb0950efa2dca1dfa8290103f352f8df8b5

General

Target

2d64b37beb5063a030c2e083b4d6baa0N.exe
Size

892KB
MD5

2d64b37beb5063a030c2e083b4d6baa0
SHA1

bf0583bcecb115f20c5c6f800b46321734b8a781
SHA256

270f8e7c30ebdbf8c1e642e4c7dd5eb0950efa2dca1dfa8290103f352f8df8b5
SHA512

77a24cb1d905049ff129084a9ef7d9bd48fcace78c5dcca1b4e7e84cdc4ce707cf584c136273717b66480ebc513ed857c0a06bb7918697cc18aa0917c7558fd0
SSDEEP

24576:v6Zv2ivhBVnFys7xP86LkRCwPYfuukvDtiflQM:vE2ivhQs7dLkRumsR

Score

8^/10

discovery persistence upx

Malware Config

Signatures

Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{8F9C878E-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msldj32.exe"	2d64b37beb5063a030c2e083b4d6baa0N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{8F9C878E-8B9A-11D5-EBA1-F78EEEEEE983}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{8F9C878E-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msldj32.exe"	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{8F9C878E-8B9A-11D5-EBA1-F78EEEEEE983}	2d64b37beb5063a030c2e083b4d6baa0N.exe

Executes dropped EXE 1 IoCs

pid	Process
2720	svchost.exe

Modifies system executable filetype association 2 TTPs 2 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:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	2d64b37beb5063a030c2e083b4d6baa0N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	svchost.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2820-0-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral1/files/0x000900000001631e-5.dat	upx
behavioral1/memory/2820-14-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral1/files/0x0033000000015f8b-15.dat	upx
behavioral1/memory/2720-16-0x0000000000400000-0x0000000000439000-memory.dmp	upx

Adds Run key to start application 2 TTPs 4 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\VCL = "vcl32.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	2d64b37beb5063a030c2e083b4d6baa0N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	2d64b37beb5063a030c2e083b4d6baa0N.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\vcl32.exe	2d64b37beb5063a030c2e083b4d6baa0N.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	2d64b37beb5063a030c2e083b4d6baa0N.exe
File created	C:\Windows\SysWOW64\msldj32.exe	2d64b37beb5063a030c2e083b4d6baa0N.exe
File opened for modification	C:\Windows\SysWOW64\msldj32.exe	2d64b37beb5063a030c2e083b4d6baa0N.exe
File created	C:\Windows\SysWOW64\concp32.exe	2d64b37beb5063a030c2e083b4d6baa0N.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	2d64b37beb5063a030c2e083b4d6baa0N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\svchost.exe	2d64b37beb5063a030c2e083b4d6baa0N.exe
File opened for modification	C:\Windows\svchost.exe	2d64b37beb5063a030c2e083b4d6baa0N.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2d64b37beb5063a030c2e083b4d6baa0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Modifies registry class 12 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8F9C878E-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8F9C878E-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8F9C878E-8B9A-11D5-EBA1-F78EEEEEE983}	2d64b37beb5063a030c2e083b4d6baa0N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8F9C878E-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	2d64b37beb5063a030c2e083b4d6baa0N.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8F9C878E-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9	2d64b37beb5063a030c2e083b4d6baa0N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8F9C878E-8B9A-11D5-EBA1-F78EEEEEE983}	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8F9C878E-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8F9C878E-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8F9C878E-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165"	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8F9C878E-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 135fd517eca348496621aa0706be3064	2d64b37beb5063a030c2e083b4d6baa0N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	2d64b37beb5063a030c2e083b4d6baa0N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	svchost.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2820	2d64b37beb5063a030c2e083b4d6baa0N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2820 wrote to memory of 2720	2820	2d64b37beb5063a030c2e083b4d6baa0N.exe	30
PID 2820 wrote to memory of 2720	2820	2d64b37beb5063a030c2e083b4d6baa0N.exe	30
PID 2820 wrote to memory of 2720	2820	2d64b37beb5063a030c2e083b4d6baa0N.exe	30
PID 2820 wrote to memory of 2720	2820	2d64b37beb5063a030c2e083b4d6baa0N.exe	30

C:\Users\Admin\AppData\Local\Temp\2d64b37beb5063a030c2e083b4d6baa0N.exe
"C:\Users\Admin\AppData\Local\Temp\2d64b37beb5063a030c2e083b4d6baa0N.exe"
1⤵
- Boot or Logon Autostart Execution: Active Setup
- Modifies system executable filetype association
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2820
- C:\Windows\svchost.exe
  C:\Windows\svchost.exe
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Executes dropped EXE
  - Modifies system executable filetype association
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\concp32.exe

Filesize
894KB

MD5
2afc0cdaf8a95280d05bdc9442bb5114

SHA1
225c9c12a122ebb3a6f11566b22a570ea62e382c

SHA256
28a1d77bc151d6119d825fabf694eb887066036c338a6a759f341dc22074f49d

SHA512
cfb78b4a365cd4113f8e33cec944d9cfd0b69807ae5ae11dc41a7de408e81f8763cc13186064e8c01ccc58c26eb3245805e5317c333bcd08e5a014a32381a299

Download Submit
C:\Windows\svchost.exe

Filesize
896KB

MD5
cee6452eb7f29a0c6592b1a670a28097

SHA1
d4cb9def51d335941ac92a267b1f85115bc2d11a

SHA256
72b5f27e9b943a8b0f2d9d03f8324a15120069d97c98da8648576fdf880a50b6

SHA512
8312e0b0724e692e8467e8cd1f033dd343077293b51cedf2af8792bf426aaf9f113076a8dbab3975676daf303894b3f43b4908ef4da7d1c603fb0b1d0fda99fa

Download Submit
memory/2720-16-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2820-0-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2820-13-0x00000000002F0000-0x0000000000329000-memory.dmp

Filesize
228KB

Download
memory/2820-14-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads