cbba9a134cdef85bed1081a062a5e25dbbdafff135f49e2308109bd9f98c762b

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09-03-2024 21:01

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General

Target

bccbe3ba00289fce2b84c7ef83c41f0e.exe
Size

97KB
MD5

bccbe3ba00289fce2b84c7ef83c41f0e
SHA1

a2d5e8c9944290bede8ea804edf6cc7ce191c71d
SHA256

cbba9a134cdef85bed1081a062a5e25dbbdafff135f49e2308109bd9f98c762b
SHA512

5d9a7f87d053939d4b98ba7e6e96d31a8591fb22f6a7745ca9ad5a73e238c5dfc63582d3f5aee9a9882b6a12a100e6324fd61f6c5ad144e6b30378c3c5db83b4
SSDEEP

3072:SKcWmjRrz36pUM2JvQoZqagTF++aSdy7xGPUH4q:hGVK5TwoP49

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4316	uv57sBnRssa4Q0K.exe
1016	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 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4052-0-0x00000000009C0000-0x00000000009D7000-memory.dmp	upx
behavioral2/files/0x00080000000231d0-6.dat	upx
behavioral2/memory/4052-7-0x00000000009C0000-0x00000000009D7000-memory.dmp	upx
behavioral2/memory/1016-8-0x0000000000620000-0x0000000000637000-memory.dmp	upx
behavioral2/files/0x00020000000227b4-13.dat	upx
behavioral2/memory/1016-30-0x0000000000620000-0x0000000000637000-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"	bccbe3ba00289fce2b84c7ef83c41f0e.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	bccbe3ba00289fce2b84c7ef83c41f0e.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4052	bccbe3ba00289fce2b84c7ef83c41f0e.exe
Token: SeDebugPrivilege	1016	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4052 wrote to memory of 4316	4052	bccbe3ba00289fce2b84c7ef83c41f0e.exe	89
PID 4052 wrote to memory of 4316	4052	bccbe3ba00289fce2b84c7ef83c41f0e.exe	89
PID 4052 wrote to memory of 4316	4052	bccbe3ba00289fce2b84c7ef83c41f0e.exe	89
PID 4052 wrote to memory of 1016	4052	bccbe3ba00289fce2b84c7ef83c41f0e.exe	90
PID 4052 wrote to memory of 1016	4052	bccbe3ba00289fce2b84c7ef83c41f0e.exe	90
PID 4052 wrote to memory of 1016	4052	bccbe3ba00289fce2b84c7ef83c41f0e.exe	90

C:\Users\Admin\AppData\Local\Temp\bccbe3ba00289fce2b84c7ef83c41f0e.exe
"C:\Users\Admin\AppData\Local\Temp\bccbe3ba00289fce2b84c7ef83c41f0e.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4052
- C:\Users\Admin\AppData\Local\Temp\uv57sBnRssa4Q0K.exe
  C:\Users\Admin\AppData\Local\Temp\uv57sBnRssa4Q0K.exe
  2⤵
  - Executes dropped EXE
  PID:4316
- 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:1016

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
5a9c9ef50545ecd169f9ac6a204a5ff5

SHA1
55d36d126998bb6326c01678603a26a280cd6fef

SHA256
c2421bf2f8209c88a5444dde9d7c883c32636b15d3ab3ae92d67f241c8f3921d

SHA512
6d8941b60c44f252f88a7af572a8f349ab1ef25c49702deebcf8347105899267bd501834d2cdbf8a02516f2d46e127459eb817c940fe56eaef36edae07ca907b

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C:\Users\Admin\AppData\Local\Temp\uv57sBnRssa4Q0K.exe

Filesize
67KB

MD5
50e9d1438f14e3e345db6b9f15473be0

SHA1
20b511d23f4df169b10d6cd022e90b3441af038a

SHA256
6852f4faa2d0ae8be06c198c40875c9ecc466c2da9f6899b6d1f80e7df80b5e9

SHA512
65dcd5c3ee197727beef8c5bfef4073d9ed93c6662827721310dcbc0ea02c8334dbe42a47a2aee1cbe35a2943d6518c93a1d77325e58ad74cb93828b6c691ea9

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C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/1016-8-0x0000000000620000-0x0000000000637000-memory.dmp

Filesize
92KB

Download
memory/1016-30-0x0000000000620000-0x0000000000637000-memory.dmp

Filesize
92KB

Download
memory/4052-0-0x00000000009C0000-0x00000000009D7000-memory.dmp

Filesize
92KB

Download
memory/4052-7-0x00000000009C0000-0x00000000009D7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads