3a77a640932d9191af32746ddb62e155b77c6a8bc0c8880ed4f11184535e4010

Analysis

max time kernel
148s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
05-01-2024 08:54

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General

Target

4345504e169ced4a4bc6374c6165cde3.exe
Size

126KB
MD5

4345504e169ced4a4bc6374c6165cde3
SHA1

c1a8c443db54c35cc7bdfbadd1c9b893c9a49d0f
SHA256

3a77a640932d9191af32746ddb62e155b77c6a8bc0c8880ed4f11184535e4010
SHA512

823b0bd5a89994a047787f416a234e969617a258e79da2163ad55d32a8e856e988831bc33c7786e1ca0c5f0d95383a225dc91220ed2c7754155529e5572b8223
SSDEEP

3072:SKcWmjRrz3ZKcWmjRrz3G25ogZ8dHO7ppsdwe7AfczK:hGyGG25ogZOHM8Afcu

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2560	r9TH761Uk0KCf2e.exe
916	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/4980-0-0x00000000001C0000-0x00000000001D7000-memory.dmp	upx
behavioral2/files/0x000700000002320b-6.dat	upx
behavioral2/memory/916-9-0x0000000000490000-0x00000000004A7000-memory.dmp	upx
behavioral2/memory/4980-7-0x00000000001C0000-0x00000000001D7000-memory.dmp	upx
behavioral2/files/0x000300000001e6ea-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"	CTS.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	4345504e169ced4a4bc6374c6165cde3.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	4345504e169ced4a4bc6374c6165cde3.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4980	4345504e169ced4a4bc6374c6165cde3.exe
Token: SeDebugPrivilege	916	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4980 wrote to memory of 2560	4980	4345504e169ced4a4bc6374c6165cde3.exe	88
PID 4980 wrote to memory of 2560	4980	4345504e169ced4a4bc6374c6165cde3.exe	88
PID 4980 wrote to memory of 2560	4980	4345504e169ced4a4bc6374c6165cde3.exe	88
PID 4980 wrote to memory of 916	4980	4345504e169ced4a4bc6374c6165cde3.exe	90
PID 4980 wrote to memory of 916	4980	4345504e169ced4a4bc6374c6165cde3.exe	90
PID 4980 wrote to memory of 916	4980	4345504e169ced4a4bc6374c6165cde3.exe	90

C:\Users\Admin\AppData\Local\Temp\4345504e169ced4a4bc6374c6165cde3.exe
"C:\Users\Admin\AppData\Local\Temp\4345504e169ced4a4bc6374c6165cde3.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4980
- C:\Users\Admin\AppData\Local\Temp\r9TH761Uk0KCf2e.exe
  C:\Users\Admin\AppData\Local\Temp\r9TH761Uk0KCf2e.exe
  2⤵
  - Executes dropped EXE
  PID:2560
- 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:916

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
382KB

MD5
eeb6976f9107b239db1555e707b6576a

SHA1
ee4db681c70d8287fcff6b450f68ac97f23e50f2

SHA256
28b214490e9af4f0b0a1477f370422f944862dc2c345857fe45c34e4a60ab0e0

SHA512
3c147512e8fb28c451bbdbca8dc831759a7033490fd46035e71e008a28dfa8a684f32a373f7d15e22401520fe0bb4a3a75b38b5e13e78822e095283807e0ec09

Download Submit
C:\Users\Admin\AppData\Local\Temp\r9TH761Uk0KCf2e.exe

Filesize
67KB

MD5
50e9d1438f14e3e345db6b9f15473be0

SHA1
20b511d23f4df169b10d6cd022e90b3441af038a

SHA256
6852f4faa2d0ae8be06c198c40875c9ecc466c2da9f6899b6d1f80e7df80b5e9

SHA512
65dcd5c3ee197727beef8c5bfef4073d9ed93c6662827721310dcbc0ea02c8334dbe42a47a2aee1cbe35a2943d6518c93a1d77325e58ad74cb93828b6c691ea9

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/916-9-0x0000000000490000-0x00000000004A7000-memory.dmp

Filesize
92KB

Download
memory/4980-0-0x00000000001C0000-0x00000000001D7000-memory.dmp

Filesize
92KB

Download
memory/4980-7-0x00000000001C0000-0x00000000001D7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads