030c017019ff327dfb4ab0e6527e6b321ed5edf526c5fafcd30089ad6730aa24

Analysis

max time kernel
141s
max time network
130s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
13/01/2024, 05:17

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General

Target

5813adb6de1fe3cfa9ba91ba593daba1.exe
Size

81KB
MD5

5813adb6de1fe3cfa9ba91ba593daba1
SHA1

2ba828b804336b814f2b812c0d083a800a5c50e0
SHA256

030c017019ff327dfb4ab0e6527e6b321ed5edf526c5fafcd30089ad6730aa24
SHA512

8b86263dc6d98c90696ecbb4ae03d33fd6810911c2286aabe9b14f56bd8fe083c337abf7a464410181a2a25adfe6bef2a37bf0178ab6535b00505aee3aba9f9a
SSDEEP

1536:SKcR4mjD9r823FHKcR4mjD9r823FA4LCxbhPwCsPJt6Pt8Tex+7J:SKcWmjRrz3ZKcWmjRrz364htE1xI

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3712	kB4yOt8RQfUUTbN.exe
5000	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
behavioral2/memory/2268-0-0x0000000000770000-0x0000000000787000-memory.dmp	upx
behavioral2/memory/5000-8-0x0000000000370000-0x0000000000387000-memory.dmp	upx
behavioral2/memory/2268-10-0x0000000000770000-0x0000000000787000-memory.dmp	upx
behavioral2/files/0x0007000000023213-9.dat	upx
behavioral2/files/0x0006000000022765-13.dat	upx
behavioral2/memory/5000-31-0x0000000000370000-0x0000000000387000-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"	5813adb6de1fe3cfa9ba91ba593daba1.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	5813adb6de1fe3cfa9ba91ba593daba1.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2268	5813adb6de1fe3cfa9ba91ba593daba1.exe
Token: SeDebugPrivilege	5000	CTS.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2268 wrote to memory of 3712	2268	5813adb6de1fe3cfa9ba91ba593daba1.exe	89
PID 2268 wrote to memory of 3712	2268	5813adb6de1fe3cfa9ba91ba593daba1.exe	89
PID 2268 wrote to memory of 5000	2268	5813adb6de1fe3cfa9ba91ba593daba1.exe	88
PID 2268 wrote to memory of 5000	2268	5813adb6de1fe3cfa9ba91ba593daba1.exe	88
PID 2268 wrote to memory of 5000	2268	5813adb6de1fe3cfa9ba91ba593daba1.exe	88

C:\Users\Admin\AppData\Local\Temp\5813adb6de1fe3cfa9ba91ba593daba1.exe
"C:\Users\Admin\AppData\Local\Temp\5813adb6de1fe3cfa9ba91ba593daba1.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2268
- 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:5000
- C:\Users\Admin\AppData\Local\Temp\kB4yOt8RQfUUTbN.exe
  C:\Users\Admin\AppData\Local\Temp\kB4yOt8RQfUUTbN.exe
  2⤵
  - Executes dropped EXE
  PID:3712

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
bb4ec815dfbabe50341a9f65125bd0e4

SHA1
73329ab65314deb3be1cdbeae927035fb5a0797d

SHA256
e1c919929d54ef20d80267bbe5a896b0fc3183e8bfd8502f21c8df4da7b9438b

SHA512
c20abdbcc4da3e96dbd56633f04768da340da1e747ab74abe5a84c52e452fa7832f5a351abae08b8e278b028d2a16e14acfca500918255fea32e2492175081b5

Download Submit
C:\Users\Admin\AppData\Local\Temp\kB4yOt8RQfUUTbN.exe

Filesize
22KB

MD5
651cec13c85886354ee441f19c3fa26a

SHA1
09f569e19370d3b572e17f2dcbe9c75f2adb78c5

SHA256
57c3797a633a3f472d853a388d6fdd99ea17fd2a4eb1df3583d5cc0f37b3dd34

SHA512
f5611de80b71807cf046158ac56f6276bda2b29928a4f079390c8ec087e09d3f46b63724a9d52de60f1ac380ad512be6e9247e02552ba7fbc1a6998ccbc3190c

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/2268-0-0x0000000000770000-0x0000000000787000-memory.dmp

Filesize
92KB

Download
memory/2268-10-0x0000000000770000-0x0000000000787000-memory.dmp

Filesize
92KB

Download
memory/5000-8-0x0000000000370000-0x0000000000387000-memory.dmp

Filesize
92KB

Download
memory/5000-31-0x0000000000370000-0x0000000000387000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads