78e9c86506ae241fced8d29a3971da840e0022031ac259e4abbfe7f428f24e02

Analysis

max time kernel
174s
max time network
183s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
24/12/2023, 23:53

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General

Target

1af9c1248a805fdedcb9f0351b95ba57.exe
Size

30KB
MD5

1af9c1248a805fdedcb9f0351b95ba57
SHA1

34c64a1eaf47c9250f45220ba34fe989c7fb45c7
SHA256

78e9c86506ae241fced8d29a3971da840e0022031ac259e4abbfe7f428f24e02
SHA512

1d656b1c660d12cb60632a523b30db7b030314abe2d331c31f2f61ffc5efbe1d06c1cb3e01c28985dead223a5bb09908c279680240ae2189ded3b0ae7819e36a
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFif:SKcR4mjD9r823Fy

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4556	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/2516-0-0x0000000000B90000-0x0000000000BA7000-memory.dmp	upx
behavioral2/memory/4556-7-0x00000000007D0000-0x00000000007E7000-memory.dmp	upx
behavioral2/memory/2516-9-0x0000000000B90000-0x0000000000BA7000-memory.dmp	upx
behavioral2/memory/4556-31-0x00000000007D0000-0x00000000007E7000-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"	CTS.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	1af9c1248a805fdedcb9f0351b95ba57.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	1af9c1248a805fdedcb9f0351b95ba57.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2516	1af9c1248a805fdedcb9f0351b95ba57.exe
Token: SeDebugPrivilege	4556	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 4556	2516	1af9c1248a805fdedcb9f0351b95ba57.exe	39
PID 2516 wrote to memory of 4556	2516	1af9c1248a805fdedcb9f0351b95ba57.exe	39
PID 2516 wrote to memory of 4556	2516	1af9c1248a805fdedcb9f0351b95ba57.exe	39

C:\Users\Admin\AppData\Local\Temp\1af9c1248a805fdedcb9f0351b95ba57.exe
"C:\Users\Admin\AppData\Local\Temp\1af9c1248a805fdedcb9f0351b95ba57.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2516
- 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:4556

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/2516-0-0x0000000000B90000-0x0000000000BA7000-memory.dmp

Filesize
92KB

Download
memory/2516-9-0x0000000000B90000-0x0000000000BA7000-memory.dmp

Filesize
92KB

Download
memory/4556-7-0x00000000007D0000-0x00000000007E7000-memory.dmp

Filesize
92KB

Download
memory/4556-31-0x00000000007D0000-0x00000000007E7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads