a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0

General

Target

a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe
Size

632KB
MD5

f414b6c5f95d8eff2900ea3705c1f61c
SHA1

cb0c87c8d36a7ddc49ecdae4018b2afe2e1adc4b
SHA256

a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0
SHA512

d2df9dcc551b93e212563a71ed850cea086799e37c0129e10ba4f17b1734a1f612019b009015c72ac73ee9500e1c4e6c48cc5499bdf0585ea6ce2f5bfa75e10f
SSDEEP

12288:7tKe6Zv23YLVFhl4futeZ3XVJRWCO8lcWEJ5IzZVfsw1R5ZY8vZ5QPap:v6Zv2ivhl0utedlJE98lRIcZl1R5Walp

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\{3DEE22BE-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msamn32.exe"	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{3DEE22BE-8B9A-11D5-EBA1-F78EEEEEE983}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{3DEE22BE-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msamn32.exe"	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{3DEE22BE-8B9A-11D5-EBA1-F78EEEEEE983}	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe

Executes dropped EXE 1 IoCs

pid	Process
2680	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\" %*"	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.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/2704-0-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral1/files/0x0007000000015d87-5.dat	upx
behavioral1/files/0x002e000000015d36-15.dat	upx
behavioral1/memory/2704-14-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral1/memory/2680-16-0x0000000000400000-0x0000000000439000-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"	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\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\msamn32.exe	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe
File created	C:\Windows\SysWOW64\concp32.exe	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe
File created	C:\Windows\SysWOW64\vcl32.exe	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe
File created	C:\Windows\SysWOW64\msamn32.exe	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\svchost.exe	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe
File opened for modification	C:\Windows\svchost.exe	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe

Modifies registry class 12 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3DEE22BE-8B9A-11D5-EBA1-F78EEEEEE983}\ax = c48e7ffab4fd1acb44f4fe91d8a00337	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3DEE22BE-8B9A-11D5-EBA1-F78EEEEEE983}	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3DEE22BE-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3DEE22BE-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3DEE22BE-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3DEE22BE-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3DEE22BE-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3DEE22BE-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165"	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\{3DEE22BE-8B9A-11D5-EBA1-F78EEEEEE983}	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3DEE22BE-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4	svchost.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2704	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2704 wrote to memory of 2680	2704	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe	30
PID 2704 wrote to memory of 2680	2704	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe	30
PID 2704 wrote to memory of 2680	2704	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe	30
PID 2704 wrote to memory of 2680	2704	a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe	30

C:\Users\Admin\AppData\Local\Temp\a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.exe
"C:\Users\Admin\AppData\Local\Temp\a7e753463b463ea6b405c541e932ca6a3b05c63c6b5372b53b9c6f46a92ba6e0.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:2704
- 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:2680

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
636KB

MD5
060279b74d43478da114d8e8769f78ff

SHA1
e2925cf020c0a1023ba2cddfa29114c2e030357f

SHA256
5434202d35f1e6e04d4d192b146e65566a866a198f0f060094f2e33674ceb14d

SHA512
5e411e129fba2b95a7082330d05570d85c0d752dee45c96cc76cc3ec37ed4cf2f8d36d7cfe9614d97b76b3df9007ecb5538356df3fbfecb40db66d070bd9986a

Download Submit
C:\Windows\svchost.exe

Filesize
637KB

MD5
9cedafcde42cb6be503eeab07a6af28e

SHA1
ad4d98c7eb851b8f816250b2c68975506cfa1d94

SHA256
5f0faee1df819d6d8e516b228303cf8f77db1f4f9f56cf2a08b3ee248656aa76

SHA512
1fa72e683e0e1d6f177de92f9c2f13fea6eefd8c7c96ebf86890a0f3effe030b1319abc9a6f6b5cda803bf8947ccf1eb4ecdc8fb2cf4980c05b99a8f21f6e230

Download Submit
memory/2680-16-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2704-0-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2704-13-0x0000000000220000-0x0000000000259000-memory.dmp

Filesize
228KB

Download
memory/2704-14-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads