037d427859198e75ea4c0a680e9e359ffafb6e250de4d846982baeff365e983e

Analysis

max time kernel
141s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
19-01-2024 15:04

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General

Target

67eb8f9a4913d4518d1d41f5fe5d4ba8.exe
Size

30KB
MD5

67eb8f9a4913d4518d1d41f5fe5d4ba8
SHA1

0f9f20b78a794840bbed00f3468325b69c63300c
SHA256

037d427859198e75ea4c0a680e9e359ffafb6e250de4d846982baeff365e983e
SHA512

615a79925c1fe75838aac79f4244484c01fb5dd6c0dda0f91025946307fef0fa1cc5396447807f99aca4868ab30429874379fa8b3011149ccf4d24e8dd711340
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEF4:SKcR4mjD9r823F4

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2560	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/4320-0-0x00000000006B0000-0x00000000006C7000-memory.dmp	upx
behavioral2/files/0x00080000000231fd-5.dat	upx
behavioral2/memory/2560-9-0x0000000000930000-0x0000000000947000-memory.dmp	upx
behavioral2/memory/4320-7-0x00000000006B0000-0x00000000006C7000-memory.dmp	upx
behavioral2/files/0x00040000000227e6-12.dat	upx
behavioral2/files/0x000600000001e5df-30.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"	67eb8f9a4913d4518d1d41f5fe5d4ba8.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	67eb8f9a4913d4518d1d41f5fe5d4ba8.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4320	67eb8f9a4913d4518d1d41f5fe5d4ba8.exe
Token: SeDebugPrivilege	2560	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4320 wrote to memory of 2560	4320	67eb8f9a4913d4518d1d41f5fe5d4ba8.exe	88
PID 4320 wrote to memory of 2560	4320	67eb8f9a4913d4518d1d41f5fe5d4ba8.exe	88
PID 4320 wrote to memory of 2560	4320	67eb8f9a4913d4518d1d41f5fe5d4ba8.exe	88

C:\Users\Admin\AppData\Local\Temp\67eb8f9a4913d4518d1d41f5fe5d4ba8.exe
"C:\Users\Admin\AppData\Local\Temp\67eb8f9a4913d4518d1d41f5fe5d4ba8.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4320
- 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:2560

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
353KB

MD5
5486076945dbfd12e6d08823e62efa89

SHA1
e5daf92e5b8659e45f10258aa7356f3538bd19c6

SHA256
a33bf84854e7d909b5f3cb79718ce5a6014119b7ae2a7545e90950a488cee2a3

SHA512
43a5e7e5aed7178205bc4e70f7794d3e7fcfcc6f05846897ee1570769beb16269657317aa4488cc42fd037bcee6b4abcc0901a1f0b75cf27ea49ea1e592e7ea2

Download Submit
C:\Users\Admin\AppData\Local\Temp\sHx3fdatXbKcLzW.exe

Filesize
30KB

MD5
12b43156e66e8fa3bcd001c0bde2a175

SHA1
030285e71b30a9ef60abb15b7557150aaa0c8a22

SHA256
c9f3f6e6d0fb7ff3b2122c21f482db37fbf99ec6d9f53b8fce1c0a29357f4224

SHA512
1c85c604306b2bc34a58e716faab6c686f482c42e497bfd4787f9d5cfa9d51f51a9a23c01bc9bac4248d9f75c7fca584074e4c4eac983f25ac5a487cee0fc3c3

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/2560-9-0x0000000000930000-0x0000000000947000-memory.dmp

Filesize
92KB

Download
memory/4320-0-0x00000000006B0000-0x00000000006C7000-memory.dmp

Filesize
92KB

Download
memory/4320-7-0x00000000006B0000-0x00000000006C7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads