03012ca9f389d6a0bc70d575149a73aa61252ab0fe2b4181dc6f3668e3e0d490

Analysis

max time kernel
140s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18-01-2024 23:41

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General

Target

6656c959c83b943abd3efc85a589a696.exe
Size

59KB
MD5

6656c959c83b943abd3efc85a589a696
SHA1

fa0a3fb461c920774f7ee24109999157e6fe8c1f
SHA256

03012ca9f389d6a0bc70d575149a73aa61252ab0fe2b4181dc6f3668e3e0d490
SHA512

57a167ae23e1b1496d6b573b8c7b05038303d6ef95f804c04ea10e7cef82f79149ea5dcd6d6d695053d02897ce010ef0b9739119e38f76aab4c5e1cf25cefbef
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFGocAX3LKew369lp2z3t:SKcR4mjD9r823FHKcR4mjD9r823Fc

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2660	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/2660-12-0x0000000000E80000-0x0000000000E97000-memory.dmp	upx
behavioral1/files/0x000b00000001224d-14.dat	upx
behavioral1/files/0x000d000000012303-10.dat	upx
behavioral1/memory/2508-8-0x0000000000EE0000-0x0000000000EF7000-memory.dmp	upx
behavioral1/memory/2508-1-0x0000000000EE0000-0x0000000000EF7000-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"	6656c959c83b943abd3efc85a589a696.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	6656c959c83b943abd3efc85a589a696.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2508	6656c959c83b943abd3efc85a589a696.exe
Token: SeDebugPrivilege	2660	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2508 wrote to memory of 2660	2508	6656c959c83b943abd3efc85a589a696.exe	18
PID 2508 wrote to memory of 2660	2508	6656c959c83b943abd3efc85a589a696.exe	18
PID 2508 wrote to memory of 2660	2508	6656c959c83b943abd3efc85a589a696.exe	18
PID 2508 wrote to memory of 2660	2508	6656c959c83b943abd3efc85a589a696.exe	18

C:\Users\Admin\AppData\Local\Temp\6656c959c83b943abd3efc85a589a696.exe
"C:\Users\Admin\AppData\Local\Temp\6656c959c83b943abd3efc85a589a696.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2508
- 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:2660

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\quZeSTXxewwv4aI.exe

Filesize
59KB

MD5
5447e24e011441fa07f8ad95e7fd0f38

SHA1
86c43d4027558e7422f32a154272de4e65143081

SHA256
5b4a9ca22b5056c61288cb95c7e66ddca087df402b417cb3a224e4eadd564e29

SHA512
4c53dbcec5c65e92be0e81bccd9cba0f4b4e1a45ba95fb2525984bd943ed64e1036a284f99e13ea7a0ff707a75bbf9359bc8e22565b5b6a9cb971a1a8ace9ed9

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/2508-11-0x00000000002B0000-0x00000000002C7000-memory.dmp

Filesize
92KB

Download
memory/2508-8-0x0000000000EE0000-0x0000000000EF7000-memory.dmp

Filesize
92KB

Download
memory/2508-1-0x0000000000EE0000-0x0000000000EF7000-memory.dmp

Filesize
92KB

Download
memory/2508-18-0x00000000002B0000-0x00000000002C7000-memory.dmp

Filesize
92KB

Download
memory/2660-12-0x0000000000E80000-0x0000000000E97000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads