adf8f9d28e63c8b6bbd405198fa0e21613cf5f3968c3fa19869484e02e6f8e71

Analysis

max time kernel
146s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25/12/2023, 09:51

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General

Target

1549887a299edd6391f4def719c34df4.exe
Size

29KB
MD5

1549887a299edd6391f4def719c34df4
SHA1

4e99618baf391bfbb2e3d5cec32c9356a55a16c2
SHA256

adf8f9d28e63c8b6bbd405198fa0e21613cf5f3968c3fa19869484e02e6f8e71
SHA512

583fbddb051aa3f5633ec71e322edb6d74cc8f5c4a304f540406cb214f392d128c7404196543e20b89101c3a09b5a223707a7322d8f90c39c966fa0d441a65e8
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFsM:SKcR4mjD9r823FsM

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1940	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
behavioral1/memory/2052-0-0x0000000000140000-0x0000000000157000-memory.dmp	upx
behavioral1/memory/2052-9-0x0000000000140000-0x0000000000157000-memory.dmp	upx
behavioral1/files/0x000c0000000122e0-8.dat	upx
behavioral1/memory/1940-12-0x0000000000920000-0x0000000000937000-memory.dmp	upx
behavioral1/memory/2052-5-0x00000000000E0000-0x00000000000F7000-memory.dmp	upx
behavioral1/files/0x0034000000015004-13.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"	CTS.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	1549887a299edd6391f4def719c34df4.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	1549887a299edd6391f4def719c34df4.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2052	1549887a299edd6391f4def719c34df4.exe
Token: SeDebugPrivilege	1940	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2052 wrote to memory of 1940	2052	1549887a299edd6391f4def719c34df4.exe	28
PID 2052 wrote to memory of 1940	2052	1549887a299edd6391f4def719c34df4.exe	28
PID 2052 wrote to memory of 1940	2052	1549887a299edd6391f4def719c34df4.exe	28
PID 2052 wrote to memory of 1940	2052	1549887a299edd6391f4def719c34df4.exe	28

C:\Users\Admin\AppData\Local\Temp\1549887a299edd6391f4def719c34df4.exe
"C:\Users\Admin\AppData\Local\Temp\1549887a299edd6391f4def719c34df4.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2052
- 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:1940

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\Temp\kSv5jsgW8oSbxtD.exe

Filesize
29KB

MD5
1b2319ef9a0900c64fadd57e95223720

SHA1
4e5725addfc56dbbba39903702f0c9a61184edd6

SHA256
597c06163703ab13174f3f92ea976909e7b78f65a789e5655236570d463e96bc

SHA512
b0987b9d5222b0204da8ca42e748bcc2dee3f2ab629f6abce5bda248525a14b8b41fb2281ce339c35b636b0f386330c6753fcbb9e9cbe78da90f044d97a85bad

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/1940-12-0x0000000000920000-0x0000000000937000-memory.dmp

Filesize
92KB

Download
memory/2052-0-0x0000000000140000-0x0000000000157000-memory.dmp

Filesize
92KB

Download
memory/2052-9-0x0000000000140000-0x0000000000157000-memory.dmp

Filesize
92KB

Download
memory/2052-5-0x00000000000E0000-0x00000000000F7000-memory.dmp

Filesize
92KB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads