af812aa371ec2ff8b43951598cb24c2b598d7b837a125e36192d780104668a7f

General

Target

26ca5c7aa6289e9598ce6cc6d9d03f47.exe
Size

115KB
MD5

26ca5c7aa6289e9598ce6cc6d9d03f47
SHA1

00b1d3ada6b8a003d9878bd6f4bfc0f2433844c7
SHA256

af812aa371ec2ff8b43951598cb24c2b598d7b837a125e36192d780104668a7f
SHA512

b384012b8695a339668bd9808607b86969e80ce1468d84d85926c490a50b2450ffebab84772bb9869559e25e36a16de47749acb6e853a0af46d669fbcd4d71bc
SSDEEP

3072:SKcWmjRrz3ZKcWmjRrz3IChT/zXrfgvo4fyyA7wE5:hGyGIwrz74Auyns8

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4772	YLndGEJzscUHJa0.exe
4624	CTS.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3964-0-0x00000000003C0000-0x00000000003D7000-memory.dmp	upx
behavioral2/memory/4624-9-0x0000000000480000-0x0000000000497000-memory.dmp	upx
behavioral2/memory/3964-8-0x00000000003C0000-0x00000000003D7000-memory.dmp	upx
behavioral2/memory/4772-30-0x0000000001550000-0x0000000001560000-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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	26ca5c7aa6289e9598ce6cc6d9d03f47.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	26ca5c7aa6289e9598ce6cc6d9d03f47.exe
File created	C:\Windows\CTS.exe	CTS.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3964	26ca5c7aa6289e9598ce6cc6d9d03f47.exe
Token: SeDebugPrivilege	4624	CTS.exe
Token: SeBackupPrivilege	1676	dw20.exe
Token: SeBackupPrivilege	1676	dw20.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3964 wrote to memory of 4772	3964	26ca5c7aa6289e9598ce6cc6d9d03f47.exe	19
PID 3964 wrote to memory of 4772	3964	26ca5c7aa6289e9598ce6cc6d9d03f47.exe	19
PID 3964 wrote to memory of 4624	3964	26ca5c7aa6289e9598ce6cc6d9d03f47.exe	17
PID 3964 wrote to memory of 4624	3964	26ca5c7aa6289e9598ce6cc6d9d03f47.exe	17
PID 3964 wrote to memory of 4624	3964	26ca5c7aa6289e9598ce6cc6d9d03f47.exe	17
PID 4772 wrote to memory of 1676	4772	YLndGEJzscUHJa0.exe	95
PID 4772 wrote to memory of 1676	4772	YLndGEJzscUHJa0.exe	95

C:\Users\Admin\AppData\Local\Temp\26ca5c7aa6289e9598ce6cc6d9d03f47.exe
"C:\Users\Admin\AppData\Local\Temp\26ca5c7aa6289e9598ce6cc6d9d03f47.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3964
- C:\Windows\CTS.exe
  "C:\Windows\CTS.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  PID:4624
- C:\Users\Admin\AppData\Local\Temp\YLndGEJzscUHJa0.exe
  C:\Users\Admin\AppData\Local\Temp\YLndGEJzscUHJa0.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:4772
- - C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
    dw20.exe -x -s 804
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:1676

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/3964-0-0x00000000003C0000-0x00000000003D7000-memory.dmp

Filesize
92KB

Download
memory/3964-8-0x00000000003C0000-0x00000000003D7000-memory.dmp

Filesize
92KB

Download
memory/4624-9-0x0000000000480000-0x0000000000497000-memory.dmp

Filesize
92KB

Download
memory/4772-28-0x00007FFE5F020000-0x00007FFE5F9C1000-memory.dmp

Filesize
9.6MB

Download
memory/4772-30-0x0000000001550000-0x0000000001560000-memory.dmp

Filesize
64KB

Download
memory/4772-31-0x00007FFE5F020000-0x00007FFE5F9C1000-memory.dmp

Filesize
9.6MB

Download
memory/4772-41-0x00007FFE5F020000-0x00007FFE5F9C1000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads