b84ca44535cc1919511e0914a0845133264b3443ecb51c6f6eab83a6d15304c4

Analysis

max time kernel
141s
max time network
127s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30/12/2023, 14:28

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General

Target

1b6f217e596aaffbb868315f5da6f291.exe
Size

36KB
MD5

1b6f217e596aaffbb868315f5da6f291
SHA1

cde527d83610c942d0e6ed19b58fd447630d752a
SHA256

b84ca44535cc1919511e0914a0845133264b3443ecb51c6f6eab83a6d15304c4
SHA512

dd220c6a514d671ab369391911a9e6d90a9af7ddf8f5060df3cc4797b6d74154c187c8d30540a4197af478fe59e9452735f04ca8e95f14ca19a58aaa70c11164
SSDEEP

768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+Ij:s9Z3KcR4mjD9r8226++

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2296	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/2908-0-0x0000000000EE0000-0x0000000000EF7000-memory.dmp	upx
behavioral1/memory/2908-5-0x0000000000130000-0x0000000000147000-memory.dmp	upx
behavioral1/files/0x000d00000001473e-11.dat	upx
behavioral1/memory/2296-13-0x00000000011F0000-0x0000000001207000-memory.dmp	upx
behavioral1/memory/2908-10-0x0000000000EE0000-0x0000000000EF7000-memory.dmp	upx
behavioral1/files/0x000b000000012243-16.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"	1b6f217e596aaffbb868315f5da6f291.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	1b6f217e596aaffbb868315f5da6f291.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2908	1b6f217e596aaffbb868315f5da6f291.exe
Token: SeDebugPrivilege	2296	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2908 wrote to memory of 2296	2908	1b6f217e596aaffbb868315f5da6f291.exe	28
PID 2908 wrote to memory of 2296	2908	1b6f217e596aaffbb868315f5da6f291.exe	28
PID 2908 wrote to memory of 2296	2908	1b6f217e596aaffbb868315f5da6f291.exe	28
PID 2908 wrote to memory of 2296	2908	1b6f217e596aaffbb868315f5da6f291.exe	28

C:\Users\Admin\AppData\Local\Temp\1b6f217e596aaffbb868315f5da6f291.exe
"C:\Users\Admin\AppData\Local\Temp\1b6f217e596aaffbb868315f5da6f291.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2908
- 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:2296

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\74qmDyG4lu1e7O6.exe

Filesize
36KB

MD5
216bb5f845739261fec916030d14ca4a

SHA1
26af6aeff0edabbe1f85c418205352ffdcb54fd9

SHA256
95fef8e8cd2dcb219f790247b041cb53013019db6ed585482a30669659764225

SHA512
6a41bc93a39f759ad592ecdc5032dfb05480fd112fbf80ea5ce1cd1663ca9df7af063551a8feb81bf357a19520225661162c449c0ce75ccba7566894150d8a54

Download Submit
C:\Windows\CTS.exe

Filesize
35KB

MD5
93e5f18caebd8d4a2c893e40e5f38232

SHA1
fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

SHA256
a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

SHA512
986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

Download Submit
memory/2296-13-0x00000000011F0000-0x0000000001207000-memory.dmp

Filesize
92KB

Download
memory/2908-0-0x0000000000EE0000-0x0000000000EF7000-memory.dmp

Filesize
92KB

Download
memory/2908-5-0x0000000000130000-0x0000000000147000-memory.dmp

Filesize
92KB

Download
memory/2908-12-0x0000000000130000-0x0000000000147000-memory.dmp

Filesize
92KB

Download
memory/2908-10-0x0000000000EE0000-0x0000000000EF7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads