6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32

General

Target

6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32N.exe
Size

1.2MB
MD5

624c6ca08cdbf6197e7d62eb086f5160
SHA1

72f1a132755d57587ea5702dd6c306a36b4a410a
SHA256

6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32
SHA512

d30f6cc3776b4c44053c3a99c7903ad5e32cdbafdf6bee70feffef58fddcf6f04a4c8b203c7735e90389972871236acc2efd9c38ef227393360b0054d96e52bf
SSDEEP

24576:v6Zv2ivhBVnFys7xP86Lh7uhmh8VZ7i/+XAmvYSFdbRPIbgRrVCWpYzs:vE2ivhQs7dLNuhmuVZ7iHmv5FJRIqXCY

Score

8^/10

discovery persistence upx

Malware Config

Signatures

Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 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\{53E4E091-8B9A-11D5-EBA1-F78EEEEEE983}	6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{53E4E091-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msbtr32.exe"	6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32N.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:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32N.exe

Adds Run key to start application 2 TTPs 2 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"	6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32N.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32N.exe
File created	C:\Windows\SysWOW64\msbtr32.exe	6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32N.exe
File opened for modification	C:\Windows\SysWOW64\msbtr32.exe	6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32N.exe
File created	C:\Windows\SysWOW64\concp32.exe	6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32N.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32N.exe
File created	C:\Windows\SysWOW64\vcl32.exe	6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32N.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4744-0-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral2/files/0x000a000000023b69-6.dat	upx
behavioral2/memory/4744-7-0x0000000000400000-0x0000000000439000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3188	4744	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 1 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	6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32N.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{53E4E091-8B9A-11D5-EBA1-F78EEEEEE983}	6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{53E4E091-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32N.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{53E4E091-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32N.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{53E4E091-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 8256091d9330839fcd6a78c2a424d8e3	6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32N.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4744	6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32N.exe

C:\Users\Admin\AppData\Local\Temp\6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32N.exe
"C:\Users\Admin\AppData\Local\Temp\6891abca7e339d1bc187943c256401848715fe0e1479228fd6808490a092cc32N.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
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:4744
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4744 -s 704
  2⤵
  - Program crash
  PID:3188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 4744 -ip 4744
1⤵
PID:3032

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
1.2MB

MD5
4833d3092f27ad9172c965a343436469

SHA1
e143b01f2e10b77060acb07cf2f01771a857fb57

SHA256
0a4948ae4c7ca41331c66a2e23bdd2c177a90f139e62d2355a9d8d46bb0e9246

SHA512
e15c77f07db4ca57d37d924972f03b80b0e4b95af0323dc88e4c857b618327d6bed0c4fe1dfc1e061e4f900cb27849c4f6c66797f30b480e21581476914e3fc8

Download Submit
memory/4744-0-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/4744-7-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads