908171e6cd48f30bc8c9af2f5f74d1eed90e1999943b1e8411c0f6caed0c706d

Analysis

max time kernel
141s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/01/2024, 13:02

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General

Target

74c404214425909795400cec52229681.exe
Size

99KB
MD5

74c404214425909795400cec52229681
SHA1

fdd4a7d5a668afeb3504134ad66b6dc6b468691b
SHA256

908171e6cd48f30bc8c9af2f5f74d1eed90e1999943b1e8411c0f6caed0c706d
SHA512

d6213ba9447783fdd05b2a0ed07399b21ab25675b7de5503227f24f5d684742f6d0985f35b11731b026de10a02fdc087b8e0de0ea41dcdec641358573a22d913
SSDEEP

3072:sr3KcWmjRrzSGvgaaZ1RoI965Wma51YzJfck0:/WlE1RX968bTYzJfck0

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4500	xyAO5JWMmJte0GV.exe
3680	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/3708-0-0x0000000000E90000-0x0000000000EA7000-memory.dmp	upx
behavioral2/files/0x00090000000231f9-6.dat	upx
behavioral2/memory/3708-7-0x0000000000E90000-0x0000000000EA7000-memory.dmp	upx
behavioral2/memory/3680-8-0x0000000000A10000-0x0000000000A27000-memory.dmp	upx
behavioral2/files/0x000300000002276d-13.dat	upx
behavioral2/memory/3680-33-0x0000000000A10000-0x0000000000A27000-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"	74c404214425909795400cec52229681.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	74c404214425909795400cec52229681.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3708	74c404214425909795400cec52229681.exe
Token: SeDebugPrivilege	3680	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3708 wrote to memory of 4500	3708	74c404214425909795400cec52229681.exe	85
PID 3708 wrote to memory of 4500	3708	74c404214425909795400cec52229681.exe	85
PID 3708 wrote to memory of 4500	3708	74c404214425909795400cec52229681.exe	85
PID 3708 wrote to memory of 3680	3708	74c404214425909795400cec52229681.exe	86
PID 3708 wrote to memory of 3680	3708	74c404214425909795400cec52229681.exe	86
PID 3708 wrote to memory of 3680	3708	74c404214425909795400cec52229681.exe	86

C:\Users\Admin\AppData\Local\Temp\74c404214425909795400cec52229681.exe
"C:\Users\Admin\AppData\Local\Temp\74c404214425909795400cec52229681.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3708
- C:\Users\Admin\AppData\Local\Temp\xyAO5JWMmJte0GV.exe
  C:\Users\Admin\AppData\Local\Temp\xyAO5JWMmJte0GV.exe
  2⤵
  - Executes dropped EXE
  PID:4500
- 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:3680

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
358KB

MD5
4f1ff2632f8e71b663e36ffabec13105

SHA1
2e6cccb345ddc8f2ac40319b8986b2924bb9444e

SHA256
e91fa1f668a5f7ca4e74a7ffcbf58fd51d1c04c6513a140ec526abe7488f68bb

SHA512
c03f790ad825cf9f8db4f2c03abc1c6e38737e2c0d1446bbaa20a1f44e9cdfcd8463dc5ebde4252f2940c4512e2b365b5cfa6f340d2aaf4b887c8c3d50b1f547

Download Submit
C:\Users\Admin\AppData\Local\Temp\xyAO5JWMmJte0GV.exe

Filesize
64KB

MD5
a32a382b8a5a906e03a83b4f3e5b7a9b

SHA1
11e2bdd0798761f93cce363329996af6c17ed796

SHA256
75f12ea2f30d9c0d872dade345f30f562e6d93847b6a509ba53beec6d0b2c346

SHA512
ec87dd957be21b135212454646dcabdd7ef9442cf714e2c1f6b42b81f0c3fa3b1875bde9a8b538e8a0aa2190225649c29e9ed0f25176e7659e55e422dd4efe4c

Download Submit
C:\Windows\CTS.exe

Filesize
35KB

MD5
93e5f18caebd8d4a2c893e40e5f38232

SHA1
fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

SHA256
a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

SHA512
986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

Download Submit
memory/3680-8-0x0000000000A10000-0x0000000000A27000-memory.dmp

Filesize
92KB

Download
memory/3680-33-0x0000000000A10000-0x0000000000A27000-memory.dmp

Filesize
92KB

Download
memory/3708-0-0x0000000000E90000-0x0000000000EA7000-memory.dmp

Filesize
92KB

Download
memory/3708-7-0x0000000000E90000-0x0000000000EA7000-memory.dmp

Filesize
92KB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads