511bca1bd5963d556ff50eb4cbaa509cc05189fbaaa0a15723aba51b4142b7a6

Analysis

max time kernel
140s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
22/12/2023, 13:50

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General

Target

af1556746faf0df8f5756f099c34f5d6.exe
Size

53KB
MD5

af1556746faf0df8f5756f099c34f5d6
SHA1

399b50ccfe5eead327988384390f2fac291fdb1b
SHA256

511bca1bd5963d556ff50eb4cbaa509cc05189fbaaa0a15723aba51b4142b7a6
SHA512

44c27ae339d0ea090f12b0295d65b6e1cd4b5bb442f9506bab0a8e79985a3507437aa7dd9b7f84de4b09966f4cf00a5bd87b3b7bf583fe906b2d76eee44039cd
SSDEEP

1536:SKcR4mjD9r823FuDcOJ6yCLKy8/4i+98m:SKcWmjRrz3+HJa2yaF+98m

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2768	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 5 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x00070000000122c9-14.dat	upx
behavioral1/memory/2768-12-0x0000000000EC0000-0x0000000000ED7000-memory.dmp	upx
behavioral1/files/0x000b000000014249-10.dat	upx
behavioral1/memory/1032-8-0x00000000013B0000-0x00000000013C7000-memory.dmp	upx
behavioral1/memory/1032-0-0x00000000013B0000-0x00000000013C7000-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"	af1556746faf0df8f5756f099c34f5d6.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	af1556746faf0df8f5756f099c34f5d6.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1032	af1556746faf0df8f5756f099c34f5d6.exe
Token: SeDebugPrivilege	2768	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1032 wrote to memory of 2768	1032	af1556746faf0df8f5756f099c34f5d6.exe	16
PID 1032 wrote to memory of 2768	1032	af1556746faf0df8f5756f099c34f5d6.exe	16
PID 1032 wrote to memory of 2768	1032	af1556746faf0df8f5756f099c34f5d6.exe	16
PID 1032 wrote to memory of 2768	1032	af1556746faf0df8f5756f099c34f5d6.exe	16

C:\Windows\CTS.exe
"C:\Windows\CTS.exe"
1⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:2768

C:\Users\Admin\AppData\Local\Temp\af1556746faf0df8f5756f099c34f5d6.exe
"C:\Users\Admin\AppData\Local\Temp\af1556746faf0df8f5756f099c34f5d6.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1032

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\sjn9Vp2qqmwXlZl.exe

Filesize
53KB

MD5
2c807518753d69d81d78251a6afa9148

SHA1
f3bddb2150515acac9768e53c06c6a60fa12693f

SHA256
e971412ccba57c5c6e2d03a61736e063aa6db6c312b655ecb5d354d0a02dbbd9

SHA512
7636bf6049744fd7fa71ae7cd9bbc62e3a7533ed873d4744b8d7cac6e428377aea36265137df708dde29ea07ed29be9c0b4447de059aaf6a078da4bb4b38c7c5

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/1032-11-0x0000000000EC0000-0x0000000000ED7000-memory.dmp

Filesize
92KB

Download
memory/1032-8-0x00000000013B0000-0x00000000013C7000-memory.dmp

Filesize
92KB

Download
memory/1032-0-0x00000000013B0000-0x00000000013C7000-memory.dmp

Filesize
92KB

Download
memory/1032-19-0x0000000000EC0000-0x0000000000ED7000-memory.dmp

Filesize
92KB

Download
memory/2768-12-0x0000000000EC0000-0x0000000000ED7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads