061a3b8b76117679e2355115f9dc0d06b6e5fad9d8cf0a169eb1cf23ebae561c

Analysis

max time kernel
141s
max time network
130s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
05-01-2024 13:57

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General

Target

43dc75afb4a22452b36c894058073860.exe
Size

35KB
MD5

43dc75afb4a22452b36c894058073860
SHA1

6c1bfa95ea33ff571d933ff4d3f063b837723fe6
SHA256

061a3b8b76117679e2355115f9dc0d06b6e5fad9d8cf0a169eb1cf23ebae561c
SHA512

e5c014155af22cc2e4ca8792295568d75cc574e0044ca64ba72b093a25064d7e3f47b49ded02bdd349a928cb7a29bf4de4c15debee818858fd7cd666bfcb3959
SSDEEP

768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+IF:s9Z3KcR4mjD9r8226+c

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1032	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/3048-0-0x0000000000E40000-0x0000000000E57000-memory.dmp	upx
behavioral1/memory/1032-12-0x0000000001080000-0x0000000001097000-memory.dmp	upx
behavioral1/files/0x000d0000000122e0-11.dat	upx
behavioral1/memory/3048-9-0x0000000000E40000-0x0000000000E57000-memory.dmp	upx
behavioral1/memory/3048-5-0x00000000002D0000-0x00000000002E7000-memory.dmp	upx
behavioral1/files/0x000900000001225b-14.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"	43dc75afb4a22452b36c894058073860.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	43dc75afb4a22452b36c894058073860.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3048	43dc75afb4a22452b36c894058073860.exe
Token: SeDebugPrivilege	1032	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 1032	3048	43dc75afb4a22452b36c894058073860.exe	15
PID 3048 wrote to memory of 1032	3048	43dc75afb4a22452b36c894058073860.exe	15
PID 3048 wrote to memory of 1032	3048	43dc75afb4a22452b36c894058073860.exe	15
PID 3048 wrote to memory of 1032	3048	43dc75afb4a22452b36c894058073860.exe	15

C:\Users\Admin\AppData\Local\Temp\43dc75afb4a22452b36c894058073860.exe
"C:\Users\Admin\AppData\Local\Temp\43dc75afb4a22452b36c894058073860.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3048
- 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: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\ne1cepBJnTkqLE3.exe

Filesize
24KB

MD5
92521a41bb384d960af637ba8c3b73e8

SHA1
03d9138e2fa87bf38ab63f0f0da18ea690866379

SHA256
cd8cf49aa3fbecdd04b8dbdad8f7c166889db7f2ffef96b0646438737c9643a4

SHA512
2c6e792099981d27f72cc55cb670c011a5dd14594149bd793b55bd3d48a476df638661bb5eb75fe7a92bc430e9bfd6ffb3cdec15a349487c75e0b9e917ba60cb

Download Submit
C:\Windows\CTS.exe

Filesize
35KB

MD5
93e5f18caebd8d4a2c893e40e5f38232

SHA1
fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

SHA256
a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

SHA512
986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

Download Submit
memory/1032-12-0x0000000001080000-0x0000000001097000-memory.dmp

Filesize
92KB

Download
memory/3048-0-0x0000000000E40000-0x0000000000E57000-memory.dmp

Filesize
92KB

Download
memory/3048-9-0x0000000000E40000-0x0000000000E57000-memory.dmp

Filesize
92KB

Download
memory/3048-5-0x00000000002D0000-0x00000000002E7000-memory.dmp

Filesize
92KB

Download
memory/3048-18-0x00000000002D0000-0x00000000002E7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads