5cddafff2e36df7f644a72fb96448e43f5f5addbd2fe25333f27d1fa628751d2

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
28/01/2024, 23:00

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General

Target

7e3bdc009b58993fdc9a67d46d0c281f.exe
Size

36KB
MD5

7e3bdc009b58993fdc9a67d46d0c281f
SHA1

a87d258ecf83e210388a3a22a8fa276eb266aacc
SHA256

5cddafff2e36df7f644a72fb96448e43f5f5addbd2fe25333f27d1fa628751d2
SHA512

011556fd016fe24e3e3402a6901e84e3cca441f350cf82a692976c007b68e7b798479872ec505d112d8b3f6c6c0e948d3d9302d76e5b00e1fefa003328ab9933
SSDEEP

768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+I3+:s9Z3KcR4mjD9r8226+b

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3068	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/3668-0-0x0000000000CF0000-0x0000000000D07000-memory.dmp	upx
behavioral2/files/0x0007000000023207-6.dat	upx
behavioral2/memory/3668-9-0x0000000000CF0000-0x0000000000D07000-memory.dmp	upx
behavioral2/memory/3068-7-0x0000000000F10000-0x0000000000F27000-memory.dmp	upx
behavioral2/files/0x000600000001e68a-12.dat	upx
behavioral2/files/0x0007000000023204-30.dat	upx
behavioral2/memory/3068-33-0x0000000000F10000-0x0000000000F27000-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"	7e3bdc009b58993fdc9a67d46d0c281f.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	7e3bdc009b58993fdc9a67d46d0c281f.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3668	7e3bdc009b58993fdc9a67d46d0c281f.exe
Token: SeDebugPrivilege	3068	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3668 wrote to memory of 3068	3668	7e3bdc009b58993fdc9a67d46d0c281f.exe	85
PID 3668 wrote to memory of 3068	3668	7e3bdc009b58993fdc9a67d46d0c281f.exe	85
PID 3668 wrote to memory of 3068	3668	7e3bdc009b58993fdc9a67d46d0c281f.exe	85

C:\Users\Admin\AppData\Local\Temp\7e3bdc009b58993fdc9a67d46d0c281f.exe
"C:\Users\Admin\AppData\Local\Temp\7e3bdc009b58993fdc9a67d46d0c281f.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3668
- 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:3068

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
358KB

MD5
f6de740cfc6029d810a3306d824dcfe9

SHA1
242ccaa08572a5ed198f6f7a3ad49c13657902e8

SHA256
ac4ec6edf63f6d547c0785dda6be4c60cc2f64766a4e85ed842ad7ae36109c94

SHA512
d09c5d4ebe90ba4ec0eaff3bfb9645101ec7076656f7d034ee6c98fc448fae3d05db75bffd8483335f7b4334af0d38c8746e016be02244dd1158d1f08864aba9

Download Submit
C:\Users\Admin\AppData\Local\Temp\AAGxmYflpLA3eah.exe

Filesize
36KB

MD5
5d611c2560110d7a2aabdb22a2a2125e

SHA1
2262ff0cba36bc869221d496df1f09cdfeccca84

SHA256
79d6714904a1a236b20fef830127201211364aee873934c164ecf79665bcd04a

SHA512
52ff4b771e8b34330548c84f99cabfe02c5386b0d1388b0e1b392d9739858add51c71225655cbbbef1e6d7b99e3ad241ade5dd8e8e1961e52ff7ecf6ffc77c6a

Download Submit
C:\Windows\CTS.exe

Filesize
35KB

MD5
93e5f18caebd8d4a2c893e40e5f38232

SHA1
fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

SHA256
a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

SHA512
986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

Download Submit
memory/3068-7-0x0000000000F10000-0x0000000000F27000-memory.dmp

Filesize
92KB

Download
memory/3068-33-0x0000000000F10000-0x0000000000F27000-memory.dmp

Filesize
92KB

Download
memory/3668-0-0x0000000000CF0000-0x0000000000D07000-memory.dmp

Filesize
92KB

Download
memory/3668-9-0x0000000000CF0000-0x0000000000D07000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads