0fcbefb064294d7dee4d7703e0d004258529e8ac7f135014f074bfd7566c5e70

Analysis

max time kernel
147s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2023 00:40

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General

Target

1d9f6d282957ea1387ed43324ccceb34.exe
Size

97KB
MD5

1d9f6d282957ea1387ed43324ccceb34
SHA1

3fe3014bc0646b7292f350fd40b79632ff1fc4b6
SHA256

0fcbefb064294d7dee4d7703e0d004258529e8ac7f135014f074bfd7566c5e70
SHA512

ff96212104b5030bab65d954a16a5fe4ebe299390dc1d7d6895d07e59d67adfc104922c0800ea0abb084f9836ad0ae413f7c3ff7f20b26ccaad945fec09aedbc
SSDEEP

1536:SKcR4mjD9r823Fg8GQt/XbA0Kk5O5+6TqPgA9SFsa7aTIhORTEmSaNq:SKcWmjRrz3Ova6PbuqaTV0

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4756	TDyC4zdPCU5SS0M.exe
448	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
behavioral2/memory/1176-0-0x0000000000CD0000-0x0000000000CE7000-memory.dmp	upx
behavioral2/memory/1176-7-0x0000000000CD0000-0x0000000000CE7000-memory.dmp	upx
behavioral2/files/0x0007000000023039-6.dat	upx
behavioral2/memory/448-9-0x0000000000510000-0x0000000000527000-memory.dmp	upx
behavioral2/files/0x0004000000022758-13.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"	1d9f6d282957ea1387ed43324ccceb34.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	1d9f6d282957ea1387ed43324ccceb34.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1176	1d9f6d282957ea1387ed43324ccceb34.exe
Token: SeDebugPrivilege	448	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1176 wrote to memory of 4756	1176	1d9f6d282957ea1387ed43324ccceb34.exe	89
PID 1176 wrote to memory of 4756	1176	1d9f6d282957ea1387ed43324ccceb34.exe	89
PID 1176 wrote to memory of 4756	1176	1d9f6d282957ea1387ed43324ccceb34.exe	89
PID 1176 wrote to memory of 448	1176	1d9f6d282957ea1387ed43324ccceb34.exe	90
PID 1176 wrote to memory of 448	1176	1d9f6d282957ea1387ed43324ccceb34.exe	90
PID 1176 wrote to memory of 448	1176	1d9f6d282957ea1387ed43324ccceb34.exe	90

C:\Users\Admin\AppData\Local\Temp\1d9f6d282957ea1387ed43324ccceb34.exe
"C:\Users\Admin\AppData\Local\Temp\1d9f6d282957ea1387ed43324ccceb34.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1176
- C:\Users\Admin\AppData\Local\Temp\TDyC4zdPCU5SS0M.exe
  C:\Users\Admin\AppData\Local\Temp\TDyC4zdPCU5SS0M.exe
  2⤵
  - Executes dropped EXE
  PID:4756
- 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:448

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
354KB

MD5
67354dcbdb9eea5efcdd231a272722e7

SHA1
79f43cb05daf7866bb819c67e49c718aa227be59

SHA256
8641fefabc65e48e20839b43273f268da79290b262cb25433230a30518e6bff8

SHA512
4e47d9cefcc8299b4781513aee7bfe0dbf4ea93804f802edc2f3328e1b63fef9b688692862907d40265a07e94e67c79f33e4753d5e62302880a0be6366981fd4

Download Submit
C:\Users\Admin\AppData\Local\Temp\TDyC4zdPCU5SS0M.exe

Filesize
67KB

MD5
50e9d1438f14e3e345db6b9f15473be0

SHA1
20b511d23f4df169b10d6cd022e90b3441af038a

SHA256
6852f4faa2d0ae8be06c198c40875c9ecc466c2da9f6899b6d1f80e7df80b5e9

SHA512
65dcd5c3ee197727beef8c5bfef4073d9ed93c6662827721310dcbc0ea02c8334dbe42a47a2aee1cbe35a2943d6518c93a1d77325e58ad74cb93828b6c691ea9

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/448-9-0x0000000000510000-0x0000000000527000-memory.dmp

Filesize
92KB

Download
memory/1176-0-0x0000000000CD0000-0x0000000000CE7000-memory.dmp

Filesize
92KB

Download
memory/1176-7-0x0000000000CD0000-0x0000000000CE7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads