cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440d

General

Target
cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe
Size 1022KB
Sample241107-tex2pavkdw
SHA256 cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440d
MD5 d745c1b6b062fa3e668b918509e80930
SHA1 fd2b54b5718f365176cd31ad29a8fc3c989ebd59
SHA512 ec53c70773fcb2774184963cd2ac64b6fe285c2d297908bfa626d19155355ccd257064ee11d1904a497f2f8bb5dc1fa729ab3516a632761bd218a84e45391aa7
SSDEEP 24576:v6Zv2ivhBVnFys7xP86LkRCMfi1odzqrNgBbE59DjX:vE2ivhQs7dLkNMRW+9vX
MD5 SHA1 SHA512 SSDEEP

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\{42D4BB1A-8B9A-11D5-EBA1-F78EEEEEE983}	cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{42D4BB1A-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "mspqt32.exe"	cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.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\" %*"	cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.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"	cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\concp32.exe	cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe
File created	C:\Windows\SysWOW64\vcl32.exe	cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe
File created	C:\Windows\SysWOW64\mspqt32.exe	cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe
File opened for modification	C:\Windows\SysWOW64\mspqt32.exe	cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4392-0-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral2/files/0x000a000000023b74-5.dat	upx
behavioral2/memory/4392-7-0x0000000000400000-0x0000000000439000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3344	4392	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	cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{42D4BB1A-8B9A-11D5-EBA1-F78EEEEEE983}\ax = c05bfb529e36ccc7a953139edbacc394	cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{42D4BB1A-8B9A-11D5-EBA1-F78EEEEEE983}	cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{42D4BB1A-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{42D4BB1A-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4392	cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe

C:\Users\Admin\AppData\Local\Temp\cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe
"C:\Users\Admin\AppData\Local\Temp\cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.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:4392
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4392 -s 776
  2⤵
  - Program crash
  PID:3344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4392 -ip 4392
1⤵
PID:5096

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

concp32.exe

Path C:\Windows\SysWOW64\concp32.exe
Size 1.0MB
SHA256 05ae2bd0b57877da1bfbcf5c0a32eb01c7bb9900e4af8c8e28ad6bfe085fb6a5
MD5 7c6022450d2921fe3b19139d32da5a46
SHA1 4db702553c2e1c97edbbe1380de072d992ca5be0
SHA512 c77d7f98f9ab64a77bca5f3a01959dba5df24edcd151c9bd623637013e1228c144b2df6bd15782f37e6f3e05026be75a96de828c298b5d6ccebdd992dea24949
SSDEEP 24576:v6Zv2ivhBVnFys7xP86LkRCMfi1odzqrNgBbE59Djl:vE2ivhQs7dLkNMRW+9vl
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/4392-0-0x0000000000400000-0x0000000000439000-memory.dmp

Download

memory/4392-7-0x0000000000400000-0x0000000000439000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads