188b8b0b5d4245b41cda82e0ad3accddcbb4b38559301f99466faebe72551c0f

Analysis

max time kernel
141s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
27/01/2024, 01:47

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General

Target

78f5b8a688028b7c6b38e0a0ba717895.exe
Size

124KB
MD5

78f5b8a688028b7c6b38e0a0ba717895
SHA1

3c7a2cd2092e8373d2999ad5f925217e7a80b3c4
SHA256

188b8b0b5d4245b41cda82e0ad3accddcbb4b38559301f99466faebe72551c0f
SHA512

0bb43090e994b1247704f097f52c000670d76ebd1f7f56aa9d7d090bc7833d640bae90bc24b614ad32d74f1567f9b622f5792f35efb093709224b7341f80900d
SSDEEP

3072:SKcWmjRrz3C94WV4AuZQH1B3imCMPLoJ/RXHfNf:hGmV4TZQLymCMcNRXHfJ

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4360	rKCLCrqRNV9nOiU.exe
2372	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/1028-0-0x0000000000F10000-0x0000000000F27000-memory.dmp	upx
behavioral2/memory/1028-9-0x0000000000F10000-0x0000000000F27000-memory.dmp	upx
behavioral2/memory/2372-10-0x00000000005A0000-0x00000000005B7000-memory.dmp	upx
behavioral2/files/0x0007000000023228-8.dat	upx
behavioral2/files/0x000800000002313d-13.dat	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"	78f5b8a688028b7c6b38e0a0ba717895.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	78f5b8a688028b7c6b38e0a0ba717895.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1028	78f5b8a688028b7c6b38e0a0ba717895.exe
Token: SeDebugPrivilege	2372	CTS.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1028 wrote to memory of 4360	1028	78f5b8a688028b7c6b38e0a0ba717895.exe	86
PID 1028 wrote to memory of 4360	1028	78f5b8a688028b7c6b38e0a0ba717895.exe	86
PID 1028 wrote to memory of 2372	1028	78f5b8a688028b7c6b38e0a0ba717895.exe	85
PID 1028 wrote to memory of 2372	1028	78f5b8a688028b7c6b38e0a0ba717895.exe	85
PID 1028 wrote to memory of 2372	1028	78f5b8a688028b7c6b38e0a0ba717895.exe	85

C:\Users\Admin\AppData\Local\Temp\78f5b8a688028b7c6b38e0a0ba717895.exe
"C:\Users\Admin\AppData\Local\Temp\78f5b8a688028b7c6b38e0a0ba717895.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1028
- 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:2372
- C:\Users\Admin\AppData\Local\Temp\rKCLCrqRNV9nOiU.exe
  C:\Users\Admin\AppData\Local\Temp\rKCLCrqRNV9nOiU.exe
  2⤵
  - Executes dropped EXE
  PID:4360

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\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
352KB

MD5
3c581b2ab014ca99a9bf0b33c0e37bd4

SHA1
b338a2c9a09f500e23f5bde496982190ec2f4256

SHA256
2993a37b6a169da3a3fc7eeef87954c300867c0859a377737ada679b185445dc

SHA512
deedc11531d8b37b09d7c4d9c4184602c95dc9fe190099f2f06077e7fe931ab404faaba0cbdca9e16e459d72a81108087dbd8fef9c6cd6859e0a62725701d09e

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C:\Users\Admin\AppData\Local\Temp\rKCLCrqRNV9nOiU.exe

Filesize
94KB

MD5
9a821d8d62f4c60232b856e98cba7e4f

SHA1
4ec5dcbd43ad3b0178b26a57b8a2f41e33a48df5

SHA256
a5b3bf53bcd3c0296498383837e8f9eb7d610c535521315a96aa740cf769f525

SHA512
1b5273a52973dac77ad0ef7aa1dda929a782d762ab8489eb90dff1062dd4cc01e4f7f4157266a2abcf8941e91cf4aa5603de1dd8ee871524748e0989ebaa37d3

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/1028-0-0x0000000000F10000-0x0000000000F27000-memory.dmp

Filesize
92KB

Download
memory/1028-9-0x0000000000F10000-0x0000000000F27000-memory.dmp

Filesize
92KB

Download
memory/2372-10-0x00000000005A0000-0x00000000005B7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads