4c164f33dfcfb7c3df81af225e8f428ff72e713bdc8ea80f75de13c16f7a4c74

Analysis

max time kernel
141s
max time network
92s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
29/01/2024, 12:48

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General

Target

7fe07a4195ae1b5055970c7354703f05.exe
Size

59KB
MD5

7fe07a4195ae1b5055970c7354703f05
SHA1

25988e570760defbcaf49c3507a292c52e066b0b
SHA256

4c164f33dfcfb7c3df81af225e8f428ff72e713bdc8ea80f75de13c16f7a4c74
SHA512

a16fd90a9abe789486ba6491ed15deec1b5f813fe028b6d1f723533472b8470e340d9c8cbefe3fd2924d8abc1914cfca9639f0ecab95ad31097b016bfe330eb2
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFGocAX3LKew369lp2z33:SKcR4mjD9r823FHKcR4mjD9r823Fu

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3640	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 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/432-0-0x0000000000710000-0x0000000000727000-memory.dmp	upx
behavioral2/files/0x0007000000023227-6.dat	upx
behavioral2/memory/432-8-0x0000000000710000-0x0000000000727000-memory.dmp	upx
behavioral2/memory/3640-7-0x0000000000110000-0x0000000000127000-memory.dmp	upx
behavioral2/files/0x000600000001e68a-12.dat	upx
behavioral2/files/0x0007000000023224-30.dat	upx
behavioral2/memory/3640-32-0x0000000000110000-0x0000000000127000-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"	7fe07a4195ae1b5055970c7354703f05.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	7fe07a4195ae1b5055970c7354703f05.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	432	7fe07a4195ae1b5055970c7354703f05.exe
Token: SeDebugPrivilege	3640	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 432 wrote to memory of 3640	432	7fe07a4195ae1b5055970c7354703f05.exe	86
PID 432 wrote to memory of 3640	432	7fe07a4195ae1b5055970c7354703f05.exe	86
PID 432 wrote to memory of 3640	432	7fe07a4195ae1b5055970c7354703f05.exe	86

C:\Users\Admin\AppData\Local\Temp\7fe07a4195ae1b5055970c7354703f05.exe
"C:\Users\Admin\AppData\Local\Temp\7fe07a4195ae1b5055970c7354703f05.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:432
- 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:3640

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
382KB

MD5
152e39c38f6dfb046e9a087cbb9f0a90

SHA1
c1d0a9b0c845957c20880eae01dcbb9142c8b02f

SHA256
41ffc740279f80b88de9d84eaac7e6842f5b2ab507b564aeb6fcd04075260395

SHA512
95a22394674e3114ee5f54c9b9bf3735f927e27bbc0f93943ae99b6a9441a7bc0bbe68bfea54a21989a417ae460272f21f432d90423a301b7db4d8d30004a6f2

Download Submit
C:\Users\Admin\AppData\Local\Temp\MtS7AEmJFNNCXZL.exe

Filesize
59KB

MD5
6f455cde18ffdaefd06b98ce40f99996

SHA1
d94e811dcef737dc4bcfb49da479b7eec087d44e

SHA256
7836482c6298888aafc278d64fe57128d68b8394e483ec6b6bb96cf7d8cd0874

SHA512
9a71b8b20927f0ff643d1a0e75d4eefb20fa0ce3b661c7ff03b992563e586d780539e7a1144e6318273277033625b4905fd96ca42a0ac8839ef530321b158ed3

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/432-0-0x0000000000710000-0x0000000000727000-memory.dmp

Filesize
92KB

Download
memory/432-8-0x0000000000710000-0x0000000000727000-memory.dmp

Filesize
92KB

Download
memory/3640-7-0x0000000000110000-0x0000000000127000-memory.dmp

Filesize
92KB

Download
memory/3640-32-0x0000000000110000-0x0000000000127000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads