2dd778d08cd788ca1c9e50451410cea7a9c9d804eeb96c57e925da57cce306ac

Analysis

max time kernel
143s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
14-02-2024 08:25

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General

Target

9b3256d6ea6e2687249044aed2e67546.exe
Size

35KB
MD5

9b3256d6ea6e2687249044aed2e67546
SHA1

40b369b0ce307f9f73dd008d0e03dfe333dc02f1
SHA256

2dd778d08cd788ca1c9e50451410cea7a9c9d804eeb96c57e925da57cce306ac
SHA512

85213a6387802678348777ec203063bd4cf3b42a9c2f12ab59b11e587368db558ecf0872403f852c1cc86fd0ac7b35c40fa87a4815759cc041ae5778126c0454
SSDEEP

768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+IR:s9Z3KcR4mjD9r8226+Q

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3704	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 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/5084-0-0x0000000000EB0000-0x0000000000EC7000-memory.dmp	upx
behavioral2/files/0x0006000000023205-5.dat	upx
behavioral2/memory/3704-7-0x0000000000990000-0x00000000009A7000-memory.dmp	upx
behavioral2/memory/5084-9-0x0000000000EB0000-0x0000000000EC7000-memory.dmp	upx
behavioral2/files/0x000600000002272c-12.dat	upx
behavioral2/files/0x0007000000023201-29.dat	upx
behavioral2/memory/3704-31-0x0000000000990000-0x00000000009A7000-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"	9b3256d6ea6e2687249044aed2e67546.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	9b3256d6ea6e2687249044aed2e67546.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5084	9b3256d6ea6e2687249044aed2e67546.exe
Token: SeDebugPrivilege	3704	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5084 wrote to memory of 3704	5084	9b3256d6ea6e2687249044aed2e67546.exe	83
PID 5084 wrote to memory of 3704	5084	9b3256d6ea6e2687249044aed2e67546.exe	83
PID 5084 wrote to memory of 3704	5084	9b3256d6ea6e2687249044aed2e67546.exe	83

C:\Users\Admin\AppData\Local\Temp\9b3256d6ea6e2687249044aed2e67546.exe
"C:\Users\Admin\AppData\Local\Temp\9b3256d6ea6e2687249044aed2e67546.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5084
- 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:3704

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
1ede7c33867ff77174ef56a83735156a

SHA1
0af0cc015060879e8670abed54faadfa305dbbca

SHA256
021788d7510cc16ce56ecf270575a37b3dc8a392349a0ec02c457c015acb6074

SHA512
c26986e42d348a80e35c92c3298adc4104ee508c6626ca7aaf08b8b6b2ccc4d685f7d055a71d23cd07b20ead9d8bb671560ccffce8379fa662f53b78d3a8ec48

Download Submit
C:\Users\Admin\AppData\Local\Temp\CM1s3YvovNiWiwB.exe

Filesize
35KB

MD5
f171caa0d5b0f13e75699ef50b2f4157

SHA1
0db5bdc2c646dbcbd94044b759a50007789460ce

SHA256
e997525d9a4e48dec499aab4add993f48cc91e8c67444ad9a900f4e1a569ce2b

SHA512
fb020ab6ac8dbf65128aa4711a14c0a4ee15c715b61d247f7811564e330e3382456f71514de657aae69f85179ec50a12b814c169abcfeb8a1f7e81067b2b885d

Download Submit
C:\Windows\CTS.exe

Filesize
35KB

MD5
93e5f18caebd8d4a2c893e40e5f38232

SHA1
fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

SHA256
a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

SHA512
986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

Download Submit
memory/3704-7-0x0000000000990000-0x00000000009A7000-memory.dmp

Filesize
92KB

Download
memory/3704-31-0x0000000000990000-0x00000000009A7000-memory.dmp

Filesize
92KB

Download
memory/5084-0-0x0000000000EB0000-0x0000000000EC7000-memory.dmp

Filesize
92KB

Download
memory/5084-9-0x0000000000EB0000-0x0000000000EC7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads