de99af65e0a55568c432a2a0d343c186deb543819bb55a921bf12973b24af876

Analysis

max time kernel
141s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
01-01-2024 20:27

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General

Target

3dce21829621ef87d72bf92339bc36a5.exe
Size

267KB
MD5

3dce21829621ef87d72bf92339bc36a5
SHA1

12e9e51a03bd389acb961610f1911b10e451ea7a
SHA256

de99af65e0a55568c432a2a0d343c186deb543819bb55a921bf12973b24af876
SHA512

600413c5aa065278ee6c737dddfc8c53165e99b14083bda7cacbb03b956d18b5ac2c6a04e2f9a4a0dd0e0de12ccea71829504473f6beef47c67d84d2808f6772
SSDEEP

3072:sr3KcWmjRrzSm6lkbTxFssKX2QR5cxIeQEchziupdUzPF44VIywcE750l0HvN0OH:/dlkbTxWX7Ect+lVw3+lwvSWm7rnh3QZ

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2044	DMnUVYq5hH2ual0.exe
2712	CTS.exe

Loads dropped DLL 2 IoCs

pid	Process
2940	3dce21829621ef87d72bf92339bc36a5.exe
2940	3dce21829621ef87d72bf92339bc36a5.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 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2940-0-0x0000000000D20000-0x0000000000D37000-memory.dmp	upx
behavioral1/memory/2712-19-0x0000000001040000-0x0000000001057000-memory.dmp	upx
behavioral1/memory/2940-15-0x0000000000D20000-0x0000000000D37000-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"	3dce21829621ef87d72bf92339bc36a5.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	CTS.exe
File created	C:\Windows\CTS.exe	3dce21829621ef87d72bf92339bc36a5.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2940	3dce21829621ef87d72bf92339bc36a5.exe
Token: SeDebugPrivilege	2712	CTS.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2940 wrote to memory of 2044	2940	3dce21829621ef87d72bf92339bc36a5.exe	16
PID 2940 wrote to memory of 2044	2940	3dce21829621ef87d72bf92339bc36a5.exe	16
PID 2940 wrote to memory of 2044	2940	3dce21829621ef87d72bf92339bc36a5.exe	16
PID 2940 wrote to memory of 2044	2940	3dce21829621ef87d72bf92339bc36a5.exe	16
PID 2940 wrote to memory of 2712	2940	3dce21829621ef87d72bf92339bc36a5.exe	14
PID 2940 wrote to memory of 2712	2940	3dce21829621ef87d72bf92339bc36a5.exe	14
PID 2940 wrote to memory of 2712	2940	3dce21829621ef87d72bf92339bc36a5.exe	14
PID 2940 wrote to memory of 2712	2940	3dce21829621ef87d72bf92339bc36a5.exe	14

C:\Windows\CTS.exe
"C:\Windows\CTS.exe"
1⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:2712

C:\Users\Admin\AppData\Local\Temp\DMnUVYq5hH2ual0.exe
C:\Users\Admin\AppData\Local\Temp\DMnUVYq5hH2ual0.exe
1⤵
- Executes dropped EXE
PID:2044

C:\Users\Admin\AppData\Local\Temp\3dce21829621ef87d72bf92339bc36a5.exe
"C:\Users\Admin\AppData\Local\Temp\3dce21829621ef87d72bf92339bc36a5.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2940

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

memory/2712-19-0x0000000001040000-0x0000000001057000-memory.dmp

Filesize
92KB

Download
memory/2940-0-0x0000000000D20000-0x0000000000D37000-memory.dmp

Filesize
92KB

Download
memory/2940-17-0x00000000000E0000-0x00000000000F7000-memory.dmp

Filesize
92KB

Download
memory/2940-18-0x00000000000E0000-0x00000000000F7000-memory.dmp

Filesize
92KB

Download
memory/2940-15-0x0000000000D20000-0x0000000000D37000-memory.dmp

Filesize
92KB

Download
memory/2940-23-0x00000000000E0000-0x00000000000F7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads