bb1d62529963da18493cbbafde333a4f49fc78f81af1a7cdf37d416444c031ea

Analysis

max time kernel
147s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04/02/2024, 08:59

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General

Target

8ebe3ef42c3fb755c5349751c10b7960.exe
Size

59KB
MD5

8ebe3ef42c3fb755c5349751c10b7960
SHA1

17307f84a8d28a4bbab65b6e09aab90aa73862eb
SHA256

bb1d62529963da18493cbbafde333a4f49fc78f81af1a7cdf37d416444c031ea
SHA512

5e4730e8f57da61d0caf55d1e3874eebbf159f2f6cf85989a107e650b27e00498475933320761b3a807efecfe603179af41a93b1b8d8d892ef6dcd4ff8d155a1
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFGocAX3LKew369lp2z3z:SKcR4mjD9r823FHKcR4mjD9r823FC

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1516	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/4636-0-0x0000000000A70000-0x0000000000A87000-memory.dmp	upx
behavioral2/files/0x000600000002313a-6.dat	upx
behavioral2/memory/1516-7-0x0000000000E50000-0x0000000000E67000-memory.dmp	upx
behavioral2/memory/4636-9-0x0000000000A70000-0x0000000000A87000-memory.dmp	upx
behavioral2/files/0x0007000000022556-12.dat	upx
behavioral2/files/0x0007000000023136-29.dat	upx
behavioral2/memory/1516-32-0x0000000000E50000-0x0000000000E67000-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"	8ebe3ef42c3fb755c5349751c10b7960.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	8ebe3ef42c3fb755c5349751c10b7960.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4636	8ebe3ef42c3fb755c5349751c10b7960.exe
Token: SeDebugPrivilege	1516	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4636 wrote to memory of 1516	4636	8ebe3ef42c3fb755c5349751c10b7960.exe	84
PID 4636 wrote to memory of 1516	4636	8ebe3ef42c3fb755c5349751c10b7960.exe	84
PID 4636 wrote to memory of 1516	4636	8ebe3ef42c3fb755c5349751c10b7960.exe	84

C:\Users\Admin\AppData\Local\Temp\8ebe3ef42c3fb755c5349751c10b7960.exe
"C:\Users\Admin\AppData\Local\Temp\8ebe3ef42c3fb755c5349751c10b7960.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4636
- 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:1516

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
c3107fa0cdddb1574c8aa776ae8ae120

SHA1
86175619b7119c8834764226a21b45b33a879730

SHA256
8c63086ce92ee444bf711a44b4b3b456a9f6e7c1e1adb2aa544c3a11026a1624

SHA512
546900fdc88bc3f4486b28c844d843eaa2894257d744d03f1c61f0aa591ec9c037bdc304121a0e6cb8a64ad16178766e9cbd22ff52d475765c5ffd424b92cec0

Download Submit
C:\Users\Admin\AppData\Local\Temp\cdx1avwIwRHftAy.exe

Filesize
59KB

MD5
fdcd106fa5a24a54b5b6d7764456e9bc

SHA1
add44d0f9e0477bd78619a7f90cde8d3db1bcc2f

SHA256
519f63e14e15182a72b1223f3a49f7c75a481000dbbc271da60cefde49c97e3b

SHA512
00bde7ab3785dd0614713f953799874909f6ac5ec233adf97ac0c4d0880769ca84dfa16d7db79baebf13d561fd2b2c00b1c181edaeed954cd53c22dc7a4d0720

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/1516-7-0x0000000000E50000-0x0000000000E67000-memory.dmp

Filesize
92KB

Download
memory/1516-32-0x0000000000E50000-0x0000000000E67000-memory.dmp

Filesize
92KB

Download
memory/4636-0-0x0000000000A70000-0x0000000000A87000-memory.dmp

Filesize
92KB

Download
memory/4636-9-0x0000000000A70000-0x0000000000A87000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads