b2d1c1eb95e4c33939c819bce774ae3741c377ed965368d7fbec0d78586b11a6

Analysis

max time kernel
141s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
31/12/2023, 13:05

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General

Target

373bda10949b6b4eb2d2a19740557b7f.exe
Size

36KB
MD5

373bda10949b6b4eb2d2a19740557b7f
SHA1

52702f9eaba204796c0db3d32349a68d9d62ce04
SHA256

b2d1c1eb95e4c33939c819bce774ae3741c377ed965368d7fbec0d78586b11a6
SHA512

7a795b2eb1cdcd65480e23d21d9ae911cf06ac39120e2f55a90d1ce01cb1014fa2660c849c532f10f8221d3e50fee04d239bc4b138672ebd9bdbe794e5c435a6
SSDEEP

768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+IJ:s9Z3KcR4mjD9r8226+A

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1968	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
behavioral1/memory/1988-0-0x0000000000390000-0x00000000003A7000-memory.dmp	upx
behavioral1/memory/1988-9-0x0000000000390000-0x00000000003A7000-memory.dmp	upx
behavioral1/files/0x000900000001225c-8.dat	upx
behavioral1/memory/1968-12-0x0000000000DB0000-0x0000000000DC7000-memory.dmp	upx
behavioral1/memory/1988-5-0x00000000001F0000-0x0000000000207000-memory.dmp	upx
behavioral1/files/0x000a000000012238-13.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"	373bda10949b6b4eb2d2a19740557b7f.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	373bda10949b6b4eb2d2a19740557b7f.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1988	373bda10949b6b4eb2d2a19740557b7f.exe
Token: SeDebugPrivilege	1968	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1988 wrote to memory of 1968	1988	373bda10949b6b4eb2d2a19740557b7f.exe	28
PID 1988 wrote to memory of 1968	1988	373bda10949b6b4eb2d2a19740557b7f.exe	28
PID 1988 wrote to memory of 1968	1988	373bda10949b6b4eb2d2a19740557b7f.exe	28
PID 1988 wrote to memory of 1968	1988	373bda10949b6b4eb2d2a19740557b7f.exe	28

C:\Users\Admin\AppData\Local\Temp\373bda10949b6b4eb2d2a19740557b7f.exe
"C:\Users\Admin\AppData\Local\Temp\373bda10949b6b4eb2d2a19740557b7f.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1988
- 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:1968

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\19VuNkH7WoKVrsY.exe

Filesize
36KB

MD5
2171eda77292942313d7aa0ff783cdb2

SHA1
d2bfd64e8a7f1a6054f54811b85260903f411af8

SHA256
7743d59a1c2674cb37531583b2a4f6450d7729e894a41a68214ace83a16542c0

SHA512
d401fafb47153c9d6a3d4b370dac40f6e4d34dc155cfc6af0c20c3b4885148593c343f2fb72d80e2205f4a986df153cf08a0f9ac5670cbe2b3191baf6c095857

Download Submit
C:\Windows\CTS.exe

Filesize
35KB

MD5
93e5f18caebd8d4a2c893e40e5f38232

SHA1
fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

SHA256
a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

SHA512
986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

Download Submit
memory/1968-12-0x0000000000DB0000-0x0000000000DC7000-memory.dmp

Filesize
92KB

Download
memory/1988-0-0x0000000000390000-0x00000000003A7000-memory.dmp

Filesize
92KB

Download
memory/1988-9-0x0000000000390000-0x00000000003A7000-memory.dmp

Filesize
92KB

Download
memory/1988-5-0x00000000001F0000-0x0000000000207000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads