fd19529ef3c97a28e172ebf2992b276b3af8acaa09b50aa5714742a3c23c9fa1

Analysis

max time kernel
143s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
23-01-2024 20:00

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General

Target

706f7ef48725056bdf5fe88fc49b19f0.exe
Size

95KB
MD5

706f7ef48725056bdf5fe88fc49b19f0
SHA1

947e3ced6a93d5bd91569df1d0d185e605de08cd
SHA256

fd19529ef3c97a28e172ebf2992b276b3af8acaa09b50aa5714742a3c23c9fa1
SHA512

52f25b7f655eed3d4b6c972a84a30d27b3f18253b686f858e5b58fdb1f014ef17af484f997b3fab30213e6536107557d2fbb483ffb220bb99b79e0960bf62093
SSDEEP

1536:s9Z3KcR4mjD9r8226+v9PoJI3I6ECZDSz6yLsly8fBbnBWgvVl9qH:sr3KcWmjRrzSu23I6E4mz6HY8NzqH

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4400	KljmdTeNAw3uxOI.exe
4540	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/4008-0-0x0000000000F40000-0x0000000000F57000-memory.dmp	upx
behavioral2/files/0x000600000002312c-7.dat	upx
behavioral2/memory/4008-9-0x0000000000F40000-0x0000000000F57000-memory.dmp	upx
behavioral2/memory/4540-10-0x0000000000FD0000-0x0000000000FE7000-memory.dmp	upx
behavioral2/files/0x0007000000022556-13.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"	706f7ef48725056bdf5fe88fc49b19f0.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	706f7ef48725056bdf5fe88fc49b19f0.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4008	706f7ef48725056bdf5fe88fc49b19f0.exe
Token: SeDebugPrivilege	4540	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4008 wrote to memory of 4400	4008	706f7ef48725056bdf5fe88fc49b19f0.exe	86
PID 4008 wrote to memory of 4400	4008	706f7ef48725056bdf5fe88fc49b19f0.exe	86
PID 4008 wrote to memory of 4400	4008	706f7ef48725056bdf5fe88fc49b19f0.exe	86
PID 4008 wrote to memory of 4540	4008	706f7ef48725056bdf5fe88fc49b19f0.exe	87
PID 4008 wrote to memory of 4540	4008	706f7ef48725056bdf5fe88fc49b19f0.exe	87
PID 4008 wrote to memory of 4540	4008	706f7ef48725056bdf5fe88fc49b19f0.exe	87

C:\Users\Admin\AppData\Local\Temp\706f7ef48725056bdf5fe88fc49b19f0.exe
"C:\Users\Admin\AppData\Local\Temp\706f7ef48725056bdf5fe88fc49b19f0.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4008
- C:\Users\Admin\AppData\Local\Temp\KljmdTeNAw3uxOI.exe
  C:\Users\Admin\AppData\Local\Temp\KljmdTeNAw3uxOI.exe
  2⤵
  - Executes dropped EXE
  PID:4400
- 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:4540

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
12a756ed6548d19a2e122467a45c04ad

SHA1
51cf466ec211097a28ae4304ead4254e6b865fff

SHA256
31bc9d89c127d7f09a043ae21545b0764f1747877285db0a3e9e52eba1e694f9

SHA512
6f0c022bf988ecb73776ddf20597d92e65514281ff305e02b8cf394e1664dffb13703322c976a7c710764d32a85656b067675a2976f4868eb8b796e0e7e8c820

Download Submit
C:\Users\Admin\AppData\Local\Temp\KljmdTeNAw3uxOI.exe

Filesize
60KB

MD5
7b112b1fb864c90ec5b65eab21cb40b8

SHA1
e7b73361f722fc7cbb93ef98a8d26e34f4d49767

SHA256
751941b4e09898c31791efeb5f90fc7367c89831d4a98637ed505e40763e287b

SHA512
bf9cdeff39cc4fa48457c55ad02e3856b5b27998535aed801a469252f01e7676462332fa3f93877753e963d037472f615c1fc5fc2e996316621b4e0a180cb5f5

Download Submit
C:\Windows\CTS.exe

Filesize
35KB

MD5
93e5f18caebd8d4a2c893e40e5f38232

SHA1
fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

SHA256
a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

SHA512
986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

Download Submit
memory/4008-0-0x0000000000F40000-0x0000000000F57000-memory.dmp

Filesize
92KB

Download
memory/4008-9-0x0000000000F40000-0x0000000000F57000-memory.dmp

Filesize
92KB

Download
memory/4540-10-0x0000000000FD0000-0x0000000000FE7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads