13d96e9b955f80bd653d3a525cb077d3b3845194b9ce99e5876c34cfa8a18344

General

Target

9f577b2539e054e913e7dc2d131a69c0N.exe
Size

976KB
MD5

9f577b2539e054e913e7dc2d131a69c0
SHA1

044251c8660a572d713208f88109517cffcd6527
SHA256

13d96e9b955f80bd653d3a525cb077d3b3845194b9ce99e5876c34cfa8a18344
SHA512

1999840bcb60ff19aab1c5faf3d605805955afda80ea4e2f78640cd7746a6fada8d4d2e2383de6236b16e598fe13eae7f06a61fcf330ece2b2d73ea79329758b
SSDEEP

24576:v6Zv2ivhBVnFys7xP86LkRCwPYfuukvDtiflQBU3jYc:vE2ivhQs7dLkRumsUU3R

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\{B8219F67-8B9A-11D5-EBA1-F78EEEEEE983}	9f577b2539e054e913e7dc2d131a69c0N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{B8219F67-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msiis32.exe"	9f577b2539e054e913e7dc2d131a69c0N.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\" %*"	9f577b2539e054e913e7dc2d131a69c0N.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1632-0-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral2/files/0x00070000000234d4-5.dat	upx
behavioral2/memory/1632-7-0x0000000000400000-0x0000000000439000-memory.dmp	upx

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\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	9f577b2539e054e913e7dc2d131a69c0N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	9f577b2539e054e913e7dc2d131a69c0N.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	9f577b2539e054e913e7dc2d131a69c0N.exe
File created	C:\Windows\SysWOW64\msiis32.exe	9f577b2539e054e913e7dc2d131a69c0N.exe
File opened for modification	C:\Windows\SysWOW64\msiis32.exe	9f577b2539e054e913e7dc2d131a69c0N.exe
File created	C:\Windows\SysWOW64\concp32.exe	9f577b2539e054e913e7dc2d131a69c0N.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	9f577b2539e054e913e7dc2d131a69c0N.exe
File created	C:\Windows\SysWOW64\vcl32.exe	9f577b2539e054e913e7dc2d131a69c0N.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3588	1632	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	9f577b2539e054e913e7dc2d131a69c0N.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B8219F67-8B9A-11D5-EBA1-F78EEEEEE983}	9f577b2539e054e913e7dc2d131a69c0N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B8219F67-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	9f577b2539e054e913e7dc2d131a69c0N.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B8219F67-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9	9f577b2539e054e913e7dc2d131a69c0N.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B8219F67-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 9edcd1eccbc81f389d6bc62b7b4f362c	9f577b2539e054e913e7dc2d131a69c0N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	9f577b2539e054e913e7dc2d131a69c0N.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1632	9f577b2539e054e913e7dc2d131a69c0N.exe

C:\Users\Admin\AppData\Local\Temp\9f577b2539e054e913e7dc2d131a69c0N.exe
"C:\Users\Admin\AppData\Local\Temp\9f577b2539e054e913e7dc2d131a69c0N.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:1632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1632 -s 704
  2⤵
  - Program crash
  PID:3588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 1632 -ip 1632
1⤵
PID:4616

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
979KB

MD5
412932294b02d985e4f97600f248cddb

SHA1
5bc5fa9cdbad60d70c2b5962a92bfd21f3f56a15

SHA256
c1aa2b9b448c76059bf1597ad598af48559a98126e819a82c305ddfb94fb04e4

SHA512
abd66024cc1a4f945baf592ee26f3bc9711d02aa14d7eff68107a478b47300ec98b116b705b58cdcf9bb8546f63f67d07c2d1851f91ca3e3ff87f8f51afd2408

Download Submit
memory/1632-0-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1632-7-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads