07fa7d9d94e5f0a52b4e7909026e28f3dd08bf848d13d40d74cc5c65ed2957c9

Analysis

max time kernel
147s
max time network
110s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
12-01-2024 02:37

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General

Target

51b31400194eb1f4e0abb841842e79cb.exe
Size

108KB
MD5

51b31400194eb1f4e0abb841842e79cb
SHA1

5a4ad59a0dfc0d29aa7874df6a0bfeb28ea7d4d0
SHA256

07fa7d9d94e5f0a52b4e7909026e28f3dd08bf848d13d40d74cc5c65ed2957c9
SHA512

190fe79d2acf333af89b08ca76e335ecae92eafe8134445afd3f7ad15fd23598275044ca626a6f421abeff1ed9ac0f4bb6853a84a1b324847853d1422bba93be
SSDEEP

3072:SKcWmjRrz3LGVgpRBDiQShYNpwzijdI/XowBu:hG9p7DiU76geu

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2500	BMp81HEGOiKDI00.exe
2628	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 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1980-0-0x0000000000EA0000-0x0000000000EB7000-memory.dmp	upx
behavioral2/memory/1980-8-0x0000000000EA0000-0x0000000000EB7000-memory.dmp	upx
behavioral2/memory/2628-9-0x00000000004D0000-0x00000000004E7000-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"	51b31400194eb1f4e0abb841842e79cb.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	51b31400194eb1f4e0abb841842e79cb.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1980	51b31400194eb1f4e0abb841842e79cb.exe
Token: SeDebugPrivilege	2628	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 2500	1980	51b31400194eb1f4e0abb841842e79cb.exe	20
PID 1980 wrote to memory of 2500	1980	51b31400194eb1f4e0abb841842e79cb.exe	20
PID 1980 wrote to memory of 2500	1980	51b31400194eb1f4e0abb841842e79cb.exe	20
PID 1980 wrote to memory of 2628	1980	51b31400194eb1f4e0abb841842e79cb.exe	18
PID 1980 wrote to memory of 2628	1980	51b31400194eb1f4e0abb841842e79cb.exe	18
PID 1980 wrote to memory of 2628	1980	51b31400194eb1f4e0abb841842e79cb.exe	18

C:\Users\Admin\AppData\Local\Temp\51b31400194eb1f4e0abb841842e79cb.exe
"C:\Users\Admin\AppData\Local\Temp\51b31400194eb1f4e0abb841842e79cb.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1980
- 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:2628
- C:\Users\Admin\AppData\Local\Temp\BMp81HEGOiKDI00.exe
  C:\Users\Admin\AppData\Local\Temp\BMp81HEGOiKDI00.exe
  2⤵
  - Executes dropped EXE
  PID:2500

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/1980-0-0x0000000000EA0000-0x0000000000EB7000-memory.dmp

Filesize
92KB

Download
memory/1980-8-0x0000000000EA0000-0x0000000000EB7000-memory.dmp

Filesize
92KB

Download
memory/2628-9-0x00000000004D0000-0x00000000004E7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads