844af3cc129fae565e79bf7f01ec356254c41259d913692b896b63da2efdb9b8

Analysis

max time kernel
140s
max time network
119s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
26/01/2024, 12:19

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General

Target

7756c16a5c9e5aedba682881bdcf1f5e.exe
Size

29KB
MD5

7756c16a5c9e5aedba682881bdcf1f5e
SHA1

040a9a80d12273723e84a51fc80ab6db6c93c8df
SHA256

844af3cc129fae565e79bf7f01ec356254c41259d913692b896b63da2efdb9b8
SHA512

7407ba8084f83c8db29fbec9f3b6106a1cef946670dc5198052c79c41668b9e3a59f276dc8198693355c5a177b2f3c6c85b9dfad8b1503c7ee81cb4ac631eb62
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFb:SKcR4mjD9r823Fb

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2308	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/memory/824-0-0x00000000008A0000-0x00000000008B7000-memory.dmp	upx
behavioral1/memory/2308-11-0x0000000001130000-0x0000000001147000-memory.dmp	upx
behavioral1/files/0x000c0000000122f0-13.dat	upx
behavioral1/files/0x000b0000000149f5-10.dat	upx
behavioral1/memory/824-8-0x00000000008A0000-0x00000000008B7000-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"	7756c16a5c9e5aedba682881bdcf1f5e.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	7756c16a5c9e5aedba682881bdcf1f5e.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	824	7756c16a5c9e5aedba682881bdcf1f5e.exe
Token: SeDebugPrivilege	2308	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 824 wrote to memory of 2308	824	7756c16a5c9e5aedba682881bdcf1f5e.exe	28
PID 824 wrote to memory of 2308	824	7756c16a5c9e5aedba682881bdcf1f5e.exe	28
PID 824 wrote to memory of 2308	824	7756c16a5c9e5aedba682881bdcf1f5e.exe	28
PID 824 wrote to memory of 2308	824	7756c16a5c9e5aedba682881bdcf1f5e.exe	28

C:\Users\Admin\AppData\Local\Temp\7756c16a5c9e5aedba682881bdcf1f5e.exe
"C:\Users\Admin\AppData\Local\Temp\7756c16a5c9e5aedba682881bdcf1f5e.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:824
- 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:2308

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\TWH7KopLdChLVDU.exe

Filesize
29KB

MD5
4cd58fbdad7b90d8b61370420cef7434

SHA1
d5d420b6b46710c27e73df64f367f6c0ba28b80b

SHA256
44c83c2bff96d519c3be5d0ab2a46071de5ed1802d5b452ebd7bbfbc859b6a94

SHA512
8be78ff557ff90f792e7fd08e3316340d554aef9e82bedc7d843167da10aaf49b9f41f7bc80a72cb8b8fc576e79e9175c6d6e8401bbd7bb0bb94b52285848455

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/824-0-0x00000000008A0000-0x00000000008B7000-memory.dmp

Filesize
92KB

Download
memory/824-8-0x00000000008A0000-0x00000000008B7000-memory.dmp

Filesize
92KB

Download
memory/2308-11-0x0000000001130000-0x0000000001147000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads