940057ae2dd2e1532eebfd06c07b3c50344f27922692479076e267443a9edc17

General

Target

087f743efe2e8420ab817c555a232e50N.exe
Size

678KB
MD5

087f743efe2e8420ab817c555a232e50
SHA1

a40fc725d117ae3350474615869e1de83f2ea09b
SHA256

940057ae2dd2e1532eebfd06c07b3c50344f27922692479076e267443a9edc17
SHA512

31623e2d8414a1596c23cbd9fd82d6f9e5bf5ab981351de67b1d4c49131420dadee851300953dcb986b4b27f23fd2320afb21b8c805983266a4601833e900002
SSDEEP

12288:7tKe6Zv23YLVFhBsC8iFHs+hsuQXIQVRpVnl3Bg5oiNaYzHvAR8:v6Zv2ivhBVnFvh5Q44+iiUKIa

Score

8^/10

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
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{B97D04E2-8B9A-11D5-EBA1-F78EEEEEE983}	087f743efe2e8420ab817c555a232e50N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{B97D04E2-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "mslyj32.exe"	087f743efe2e8420ab817c555a232e50N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{B97D04E2-8B9A-11D5-EBA1-F78EEEEEE983}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{B97D04E2-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "mslyj32.exe"	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2068	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\" %*"	087f743efe2e8420ab817c555a232e50N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	svchost.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2120-0-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral1/files/0x0008000000016ec4-5.dat	upx
behavioral1/files/0x0008000000016d89-13.dat	upx
behavioral1/memory/2120-14-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral1/memory/2068-15-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral1/memory/2068-16-0x0000000000400000-0x0000000000439000-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"	087f743efe2e8420ab817c555a232e50N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	087f743efe2e8420ab817c555a232e50N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	svchost.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	087f743efe2e8420ab817c555a232e50N.exe
File created	C:\Windows\SysWOW64\mslyj32.exe	087f743efe2e8420ab817c555a232e50N.exe
File opened for modification	C:\Windows\SysWOW64\mslyj32.exe	087f743efe2e8420ab817c555a232e50N.exe
File created	C:\Windows\SysWOW64\concp32.exe	087f743efe2e8420ab817c555a232e50N.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	087f743efe2e8420ab817c555a232e50N.exe
File created	C:\Windows\SysWOW64\vcl32.exe	087f743efe2e8420ab817c555a232e50N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\svchost.exe	087f743efe2e8420ab817c555a232e50N.exe
File opened for modification	C:\Windows\svchost.exe	087f743efe2e8420ab817c555a232e50N.exe

Modifies registry class 12 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B97D04E2-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165"	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B97D04E2-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 47756b1ef490ccec91520501f5fa4483	087f743efe2e8420ab817c555a232e50N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B97D04E2-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B97D04E2-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B97D04E2-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B97D04E2-8B9A-11D5-EBA1-F78EEEEEE983}	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B97D04E2-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B97D04E2-8B9A-11D5-EBA1-F78EEEEEE983}	087f743efe2e8420ab817c555a232e50N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B97D04E2-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	087f743efe2e8420ab817c555a232e50N.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B97D04E2-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9	087f743efe2e8420ab817c555a232e50N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	087f743efe2e8420ab817c555a232e50N.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2120	087f743efe2e8420ab817c555a232e50N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 2068	2120	087f743efe2e8420ab817c555a232e50N.exe	30
PID 2120 wrote to memory of 2068	2120	087f743efe2e8420ab817c555a232e50N.exe	30
PID 2120 wrote to memory of 2068	2120	087f743efe2e8420ab817c555a232e50N.exe	30
PID 2120 wrote to memory of 2068	2120	087f743efe2e8420ab817c555a232e50N.exe	30

C:\Users\Admin\AppData\Local\Temp\087f743efe2e8420ab817c555a232e50N.exe
"C:\Users\Admin\AppData\Local\Temp\087f743efe2e8420ab817c555a232e50N.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
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2120
- 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
  - Modifies registry class
  PID:2068

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\concp32.exe

Filesize
678KB

MD5
97e478a99ea1eea5bcae912ccadf331b

SHA1
5ac6d2daa6b233a09e9688577769ef54cb79c931

SHA256
591968e624c54dac4cb05f8c727185ee5007c3457cdcc96aebbd8516320b4592

SHA512
bb0c6a5b5c378884dee285f1ec47c845f3ef5b897f5d780711c183306fa4b44c7356b1f52dcb50955b59c045bf0581e005e6b1701bcac40110f3937c5fa82ea8

Download Submit
C:\Windows\svchost.exe

Filesize
681KB

MD5
af7070f4266887ac641da2f6a596df15

SHA1
6b8cb8d2cccb224419b8c0dd545a9841d540a3df

SHA256
2e9182b0a567ebc9a2116c8b5a09c43763792c6842084f68fac4fe40e3e086da

SHA512
32ba397c18700a06c204ae1cf1cb7f3d1ce4546170cc5e41fb14940d01412261906099e19cb2885210a3c650f0709298b62e734767ff5f042f50ac38f5e64295

Download Submit
memory/2068-15-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2068-16-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2120-0-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2120-14-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads