e717ddb6adfb9a8f1cd374a38f10cacd29c169727329a2be11ca086da88b75c0

Analysis

max time kernel
145s
max time network
126s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
01/02/2024, 07:20

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General

Target

86476884d5cf831c852593bb8f9cc597.exe
Size

41KB
MD5

86476884d5cf831c852593bb8f9cc597
SHA1

a70de34904c55e7c2f08d5e154406b1bf0d25d5d
SHA256

e717ddb6adfb9a8f1cd374a38f10cacd29c169727329a2be11ca086da88b75c0
SHA512

9cb18391c316a6bc350219906cea540b8e543951ec9423157279fded2977bdc527d9dfa3da903e88d034c96408dde2813c9691c5f27e40efc8baa20a0d07ce3a
SSDEEP

768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+I7cVKh:s9Z3KcR4mjD9r8226+Eh

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1640	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
behavioral1/memory/1436-0-0x00000000013D0000-0x00000000013E7000-memory.dmp	upx
behavioral1/memory/1436-9-0x00000000013D0000-0x00000000013E7000-memory.dmp	upx
behavioral1/memory/1640-12-0x0000000000240000-0x0000000000257000-memory.dmp	upx
behavioral1/files/0x0035000000015c38-11.dat	upx
behavioral1/files/0x0009000000012270-13.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"	86476884d5cf831c852593bb8f9cc597.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	86476884d5cf831c852593bb8f9cc597.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1436	86476884d5cf831c852593bb8f9cc597.exe
Token: SeDebugPrivilege	1640	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1436 wrote to memory of 1640	1436	86476884d5cf831c852593bb8f9cc597.exe	28
PID 1436 wrote to memory of 1640	1436	86476884d5cf831c852593bb8f9cc597.exe	28
PID 1436 wrote to memory of 1640	1436	86476884d5cf831c852593bb8f9cc597.exe	28
PID 1436 wrote to memory of 1640	1436	86476884d5cf831c852593bb8f9cc597.exe	28

C:\Users\Admin\AppData\Local\Temp\86476884d5cf831c852593bb8f9cc597.exe
"C:\Users\Admin\AppData\Local\Temp\86476884d5cf831c852593bb8f9cc597.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1436
- 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:1640

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\WJVR32KTV7u8VvI.exe

Filesize
41KB

MD5
57d7846e54cc507b9549642c1976b878

SHA1
938bb4ab8422c94c407a2c1db22061d5cb48444d

SHA256
11ea21515f805664eadfc9dda6ac1d201be871e2f8ee3ec3ff06b2fcf980a108

SHA512
c148435235408600027433db7848d3e61b326b958732bdeab38b69fdd9ee71ab78782e38e1e192a1850ed632d79aa3b7f3b994364c3f24134520dc54146d3606

Download Submit
C:\Windows\CTS.exe

Filesize
35KB

MD5
93e5f18caebd8d4a2c893e40e5f38232

SHA1
fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

SHA256
a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

SHA512
986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

Download Submit
memory/1436-0-0x00000000013D0000-0x00000000013E7000-memory.dmp

Filesize
92KB

Download
memory/1436-9-0x00000000013D0000-0x00000000013E7000-memory.dmp

Filesize
92KB

Download
memory/1436-8-0x00000000000E0000-0x00000000000F7000-memory.dmp

Filesize
92KB

Download
memory/1640-12-0x0000000000240000-0x0000000000257000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads