e925fe74872fc87b0c2cf4087b2bbd89cdf262390fda94d7c9de23a7eca2cc9f

Analysis

max time kernel
168s
max time network
177s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2023 12:35

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General

Target

18b45b8c37acb6102d590482fc427535.exe
Size

103KB
MD5

18b45b8c37acb6102d590482fc427535
SHA1

fce12ba33603d91231d305f0c728e0e905ad6c18
SHA256

e925fe74872fc87b0c2cf4087b2bbd89cdf262390fda94d7c9de23a7eca2cc9f
SHA512

8d5b70d220aa86f079b339825cae22b3767a31e82aa1b7655a80cc03a454f52b997797fe8984bacf37c4c8a3f6447677ab0ad996fc4abe553b60d2f9f8aa4b42
SSDEEP

3072:SKcWmjRrz34PR8drp/d9bj2cVLNDTZDOZO:hGTLPxZDOZO

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2996	gvpeZnN9oscfzh4.exe
4536	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/1268-0-0x0000000000D70000-0x0000000000D87000-memory.dmp	upx
behavioral2/files/0x0006000000023229-7.dat	upx
behavioral2/memory/4536-9-0x00000000006D0000-0x00000000006E7000-memory.dmp	upx
behavioral2/memory/1268-10-0x0000000000D70000-0x0000000000D87000-memory.dmp	upx
behavioral2/files/0x000800000001e364-13.dat	upx
behavioral2/memory/4536-31-0x00000000006D0000-0x00000000006E7000-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"	18b45b8c37acb6102d590482fc427535.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	18b45b8c37acb6102d590482fc427535.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1268	18b45b8c37acb6102d590482fc427535.exe
Token: SeDebugPrivilege	4536	CTS.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1268 wrote to memory of 2996	1268	18b45b8c37acb6102d590482fc427535.exe	90
PID 1268 wrote to memory of 2996	1268	18b45b8c37acb6102d590482fc427535.exe	90
PID 1268 wrote to memory of 4536	1268	18b45b8c37acb6102d590482fc427535.exe	92
PID 1268 wrote to memory of 4536	1268	18b45b8c37acb6102d590482fc427535.exe	92
PID 1268 wrote to memory of 4536	1268	18b45b8c37acb6102d590482fc427535.exe	92

C:\Users\Admin\AppData\Local\Temp\18b45b8c37acb6102d590482fc427535.exe
"C:\Users\Admin\AppData\Local\Temp\18b45b8c37acb6102d590482fc427535.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1268
- C:\Users\Admin\AppData\Local\Temp\gvpeZnN9oscfzh4.exe
  C:\Users\Admin\AppData\Local\Temp\gvpeZnN9oscfzh4.exe
  2⤵
  - Executes dropped EXE
  PID:2996
- 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:4536

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
ad3bd1df657de2c7b659aa0782527567

SHA1
b00c932f1311ea6c71af7395de7c1d3000d647d3

SHA256
602994dbc2d52d344d2d07cba5255d8ff3d2dd0619fb971b785b385ab0e539ff

SHA512
403003017f15273b931c192fa33a93dda2421f7c207c3001b2e045bf15c28ce88b9a3846e0e12b3cb02c1b984ae9ea38f19edc87142d5724f7d0410a223f822c

Download Submit
C:\Users\Admin\AppData\Local\Temp\gvpeZnN9oscfzh4.exe

Filesize
73KB

MD5
2ffc9a24492c0a1af4d562f0c7608aa5

SHA1
1fd5ff6136fba36e9ee22598ecd250af3180ee53

SHA256
69828c857d4824b9f850b1e0597d2c134c91114b7a0774c41dffe33b0eb23721

SHA512
03806d162931b1dcf036a51e753ff073a43664491a3cd2e649e55dd77d5e910f7bcf1e217eb0889ef606457b679428640e975ee227de941a200f652417bc6d5d

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/1268-0-0x0000000000D70000-0x0000000000D87000-memory.dmp

Filesize
92KB

Download
memory/1268-10-0x0000000000D70000-0x0000000000D87000-memory.dmp

Filesize
92KB

Download
memory/4536-9-0x00000000006D0000-0x00000000006E7000-memory.dmp

Filesize
92KB

Download
memory/4536-31-0x00000000006D0000-0x00000000006E7000-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