3dd4845ed990d4a75d1b1251b9a15d4edd823c69bc49b1e94c91f982135a7073

Analysis

max time kernel
147s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 12:46

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General

Target

36a684a4ef9a020e0ebf02f3aeb7c8e1.exe
Size

30KB
MD5

36a684a4ef9a020e0ebf02f3aeb7c8e1
SHA1

1391c3f03c582d8afacdeb398590452ac87f1aab
SHA256

3dd4845ed990d4a75d1b1251b9a15d4edd823c69bc49b1e94c91f982135a7073
SHA512

812b51e3553fa450c5ece31475c56dcbe12d7511250089fc2cb42301c7618d4831bf85153c99d7ede831ddc18b82ee48361814cda69c66ee42f8fe3f6de87366
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFGH:SKcR4mjD9r823F6

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4860	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 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4712-0-0x0000000000C00000-0x0000000000C17000-memory.dmp	upx
behavioral2/files/0x000700000002320a-6.dat	upx
behavioral2/memory/4712-7-0x0000000000C00000-0x0000000000C17000-memory.dmp	upx
behavioral2/memory/4860-9-0x0000000000960000-0x0000000000977000-memory.dmp	upx
behavioral2/files/0x000800000001e0b8-12.dat	upx
behavioral2/files/0x000400000001e630-29.dat	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"	36a684a4ef9a020e0ebf02f3aeb7c8e1.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	36a684a4ef9a020e0ebf02f3aeb7c8e1.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4712	36a684a4ef9a020e0ebf02f3aeb7c8e1.exe
Token: SeDebugPrivilege	4860	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4712 wrote to memory of 4860	4712	36a684a4ef9a020e0ebf02f3aeb7c8e1.exe	88
PID 4712 wrote to memory of 4860	4712	36a684a4ef9a020e0ebf02f3aeb7c8e1.exe	88
PID 4712 wrote to memory of 4860	4712	36a684a4ef9a020e0ebf02f3aeb7c8e1.exe	88

C:\Users\Admin\AppData\Local\Temp\36a684a4ef9a020e0ebf02f3aeb7c8e1.exe
"C:\Users\Admin\AppData\Local\Temp\36a684a4ef9a020e0ebf02f3aeb7c8e1.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4712
- 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:4860

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
352KB

MD5
dbeece7e1a5186e2f0d8edde9fe5f959

SHA1
a77685e82572ec4b0e179b7b20c4476360f732d3

SHA256
110c7d4f1fc37e9244efdcb9022fcdba03e735e90f49cfb1287b2a4e47daf0ca

SHA512
f1deeca245e26547022bf509bfe5021be00c5225d89bf3f8cb81ac539df639e709d4e3b7c0ac7d2acea10b120c6e269f9a15e7d04597164d6e92092c7795ea56

Download Submit
C:\Users\Admin\AppData\Local\Temp\eS2BFaX8Br2TMbK.exe

Filesize
30KB

MD5
6ac97c7ea188f9b2cb63078e9c0d9f48

SHA1
2acdc180b3fd5ef359d463cf708f9edc2db78dab

SHA256
526f97f85646e3c3c5bbf8fb98e2ff9f963d209e70285ff3031d432b952ee19d

SHA512
d098ef1b9bbf933219f08a233042579ae0493c13081ad34c09bbd6258c60cf0d5fabb7a2e1cac2b19831c7f171e427158c8c3f1a50765e131e2e3015b4135c29

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/4712-0-0x0000000000C00000-0x0000000000C17000-memory.dmp

Filesize
92KB

Download
memory/4712-7-0x0000000000C00000-0x0000000000C17000-memory.dmp

Filesize
92KB

Download
memory/4860-9-0x0000000000960000-0x0000000000977000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads