1eff209deda55c2707b955dd68e239bfe788d521ef4ed6f0744cab2d62fe9c2a

Analysis

max time kernel
141s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29/12/2023, 22:38

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General

Target

05da2f9e963a09d7ef7e3b36c98a89c6.exe
Size

99KB
MD5

05da2f9e963a09d7ef7e3b36c98a89c6
SHA1

7964821885d27ebda0efcd07cafaeae47dabc351
SHA256

1eff209deda55c2707b955dd68e239bfe788d521ef4ed6f0744cab2d62fe9c2a
SHA512

9f046e0ae83fca69071de32944d86d5530b07c5151dc8d37ba0726a900ce2f9c01f887753d6c2deb226b67e303da2ad1bdc7cbe97eadfcd72a0c74ffaad8a344
SSDEEP

3072:sr3KcWmjRrzSqmuDOVgOS7voA1pBCJbWt:/6qgxvHl

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4792	758eLY9XRUHnofC.exe
3860	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 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4208-0-0x0000000000AD0000-0x0000000000AE7000-memory.dmp	upx
behavioral2/memory/4208-7-0x0000000000AD0000-0x0000000000AE7000-memory.dmp	upx
behavioral2/memory/3860-9-0x0000000000EE0000-0x0000000000EF7000-memory.dmp	upx
behavioral2/files/0x00080000000231ea-6.dat	upx
behavioral2/memory/3860-32-0x0000000000EE0000-0x0000000000EF7000-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"	05da2f9e963a09d7ef7e3b36c98a89c6.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	05da2f9e963a09d7ef7e3b36c98a89c6.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4208	05da2f9e963a09d7ef7e3b36c98a89c6.exe
Token: SeDebugPrivilege	3860	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4208 wrote to memory of 4792	4208	05da2f9e963a09d7ef7e3b36c98a89c6.exe	15
PID 4208 wrote to memory of 4792	4208	05da2f9e963a09d7ef7e3b36c98a89c6.exe	15
PID 4208 wrote to memory of 4792	4208	05da2f9e963a09d7ef7e3b36c98a89c6.exe	15
PID 4208 wrote to memory of 3860	4208	05da2f9e963a09d7ef7e3b36c98a89c6.exe	19
PID 4208 wrote to memory of 3860	4208	05da2f9e963a09d7ef7e3b36c98a89c6.exe	19
PID 4208 wrote to memory of 3860	4208	05da2f9e963a09d7ef7e3b36c98a89c6.exe	19

C:\Users\Admin\AppData\Local\Temp\05da2f9e963a09d7ef7e3b36c98a89c6.exe
"C:\Users\Admin\AppData\Local\Temp\05da2f9e963a09d7ef7e3b36c98a89c6.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4208
- C:\Users\Admin\AppData\Local\Temp\758eLY9XRUHnofC.exe
  C:\Users\Admin\AppData\Local\Temp\758eLY9XRUHnofC.exe
  2⤵
  - Executes dropped EXE
  PID:4792
- 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:3860

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

C:\Users\Admin\AppData\Local\Temp\758eLY9XRUHnofC.exe

Filesize
2KB

MD5
1bc8996b7bd53e0bc7134a17d08d2915

SHA1
14514353304aa677cf7228bf74edb616d10d95d8

SHA256
8debf1b23e14e702e93161c4bf7b9b4eb6c9652b7986ef3497b0b0e3679e0216

SHA512
c92945d5e85b1e1bb98c03c94542a49d01196cabc3dbfeb4534a14d7b9f5755040d9ad09fb99d47cba86eac39e6042da80fc6e38000403f67ccd74cb1520f036

Download Submit
C:\Windows\CTS.exe

Filesize
2KB

MD5
3c34dae420e08d9417477acd2e5df50a

SHA1
7c48a2d98d84cc09de1bddc9aa488b3b2506fa26

SHA256
070188adf916dc916d013ea8b946c811b6aa37073c5ebfe87d14360e58f0c3c8

SHA512
ee8bd3b8bb72835c83052be170ada6040e599687a8ed45dea078a8da640eb4be54dbdffa0ce0762c1d4bbd54c5f8fb6bcd32333ad10893b719bc506223b7d884

Download Submit
memory/3860-9-0x0000000000EE0000-0x0000000000EF7000-memory.dmp

Filesize
92KB

Download
memory/3860-32-0x0000000000EE0000-0x0000000000EF7000-memory.dmp

Filesize
92KB

Download
memory/4208-0-0x0000000000AD0000-0x0000000000AE7000-memory.dmp

Filesize
92KB

Download
memory/4208-7-0x0000000000AD0000-0x0000000000AE7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads