645d3303de9dd7389ae29d0581cdabfa8dd09ef593c234471bb85ea58f28ba35

Analysis

max time kernel
151s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2023, 01:53

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

4ab4dc72b166871fe940cefb4ef2c8d6.exe
Size

30KB
MD5

4ab4dc72b166871fe940cefb4ef2c8d6
SHA1

04a591ad29cdf25c57e42402ebaf75670c10a800
SHA256

645d3303de9dd7389ae29d0581cdabfa8dd09ef593c234471bb85ea58f28ba35
SHA512

53ceea4f553557fb0da27b27090f7076ad15af43243892cbaf362a34efbc840d753da4a29bac3fd587835a108508e6899a597f36b35fa200cdd5f3e4925aa233
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFQI:SKcR4mjD9r823FX

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4496	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/2104-0-0x0000000000210000-0x0000000000227000-memory.dmp	upx
behavioral2/files/0x00070000000231f2-7.dat	upx
behavioral2/memory/4496-8-0x0000000000B90000-0x0000000000BA7000-memory.dmp	upx
behavioral2/memory/2104-9-0x0000000000210000-0x0000000000227000-memory.dmp	upx
behavioral2/files/0x00020000000227a5-12.dat	upx
behavioral2/files/0x000800000001e712-29.dat	upx
behavioral2/memory/4496-32-0x0000000000B90000-0x0000000000BA7000-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"	4ab4dc72b166871fe940cefb4ef2c8d6.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	CTS.exe
File created	C:\Windows\CTS.exe	4ab4dc72b166871fe940cefb4ef2c8d6.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2104	4ab4dc72b166871fe940cefb4ef2c8d6.exe
Token: SeDebugPrivilege	4496	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 4496	2104	4ab4dc72b166871fe940cefb4ef2c8d6.exe	89
PID 2104 wrote to memory of 4496	2104	4ab4dc72b166871fe940cefb4ef2c8d6.exe	89
PID 2104 wrote to memory of 4496	2104	4ab4dc72b166871fe940cefb4ef2c8d6.exe	89

C:\Users\Admin\AppData\Local\Temp\4ab4dc72b166871fe940cefb4ef2c8d6.exe
"C:\Users\Admin\AppData\Local\Temp\4ab4dc72b166871fe940cefb4ef2c8d6.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2104
- 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:4496

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
352KB

MD5
41ff8c9445c6c94f997863bd7e73601b

SHA1
0a0a84a9eb63cc9c385f5eaafc37f55df61bb4b2

SHA256
2d0318cc51a0c16c2e17136946db491487f6ecf0f84a90d9321135b0534dd23b

SHA512
89f0c26eb2abcf218bb96c066db365809f1a2197b317f505a2ab4be175bb9aed3c1f9493141533e08a156c4bbc42f253cb3844a0e2542bbf7a8c496164925630

Download Submit
C:\Users\Admin\AppData\Local\Temp\ybgIBSKoPz2Uhci.exe

Filesize
30KB

MD5
cc58deb0f3cc0560aaa204fdeb2da5ec

SHA1
cecc9464d9032205316ffe192807b64093777449

SHA256
a1103539ffa05ca3227346a16725b38d9afbaa32ffa4d3845e99ad393829c33b

SHA512
d34cc26755f3059d8d508d24ea2d556ab0de29db79667cbbe5c2b213e464c8f00bda99d84422c6f32fa29f6899b424e227526c4e32876fd3cc9e8fd379bb3d5a

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/2104-0-0x0000000000210000-0x0000000000227000-memory.dmp

Filesize
92KB

Download
memory/2104-9-0x0000000000210000-0x0000000000227000-memory.dmp

Filesize
92KB

Download
memory/4496-8-0x0000000000B90000-0x0000000000BA7000-memory.dmp

Filesize
92KB

Download
memory/4496-32-0x0000000000B90000-0x0000000000BA7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads