34f46c637b48446a17e6746b5680cfd27253e73398d3d6b9fc03acb962154f12

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
05-03-2024 21:44

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

b5bb35cb066fff57f953c2ac42bba8e1.exe
Size

29KB
MD5

b5bb35cb066fff57f953c2ac42bba8e1
SHA1

472603ca621c4dbe6244dc1bb1e03338e947f144
SHA256

34f46c637b48446a17e6746b5680cfd27253e73398d3d6b9fc03acb962154f12
SHA512

3ada1c41d93b2c1a71d8fa4d80536babfad2db280bd336cdbf6683e710437de55ddf658a220e97e9bc5916cc3e6210e2f19686038eb75a37b91daca139566d82
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFi:SKcR4mjD9r823Fi

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4560	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/4052-0-0x0000000000280000-0x0000000000297000-memory.dmp	upx
behavioral2/files/0x00090000000231f2-6.dat	upx
behavioral2/memory/4052-7-0x0000000000280000-0x0000000000297000-memory.dmp	upx
behavioral2/memory/4560-9-0x0000000000A70000-0x0000000000A87000-memory.dmp	upx
behavioral2/files/0x000900000001e693-12.dat	upx
behavioral2/files/0x000700000001e59e-30.dat	upx
behavioral2/memory/4560-32-0x0000000000A70000-0x0000000000A87000-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"	b5bb35cb066fff57f953c2ac42bba8e1.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	b5bb35cb066fff57f953c2ac42bba8e1.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4052	b5bb35cb066fff57f953c2ac42bba8e1.exe
Token: SeDebugPrivilege	4560	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4052 wrote to memory of 4560	4052	b5bb35cb066fff57f953c2ac42bba8e1.exe	88
PID 4052 wrote to memory of 4560	4052	b5bb35cb066fff57f953c2ac42bba8e1.exe	88
PID 4052 wrote to memory of 4560	4052	b5bb35cb066fff57f953c2ac42bba8e1.exe	88

C:\Users\Admin\AppData\Local\Temp\b5bb35cb066fff57f953c2ac42bba8e1.exe
"C:\Users\Admin\AppData\Local\Temp\b5bb35cb066fff57f953c2ac42bba8e1.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4052
- 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:4560

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
44b4fd17b9fcd4becef1e9f54de36233

SHA1
d9d30ddfb3b05e45c396d6b68400d750942b58a3

SHA256
e77c6ba28aa5b426e85460b3c3f1f44b6012b98bde6e52dc80a0943ad2017d2e

SHA512
f4013261f88a0efb28118bdf374c1282164985c8f469c2be9763a416b1cde981c9a434b01473abdfe3884bd9b72d4707fa130983aa0410876f2afa37e91840ac

Download Submit
C:\Users\Admin\AppData\Local\Temp\7oRRCWCIz7CjKEj.exe

Filesize
29KB

MD5
c8c42efd0d7b342977bfa7fbb7118b95

SHA1
646b9854f352951dded7db9263cc7662bd2fa871

SHA256
0ea276d47e7b1224c9018ea03fbc6c997d1fe81590ab096d3ab5fa91b3442de4

SHA512
f7e473f03ee648cce24c829127bb82f10cffd806befd5e59936d10304a275ad15287bb7f07906a80d08c93859192788d1717132f3b0621813cedbcdc7b291cf8

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/4052-0-0x0000000000280000-0x0000000000297000-memory.dmp

Filesize
92KB

Download
memory/4052-7-0x0000000000280000-0x0000000000297000-memory.dmp

Filesize
92KB

Download
memory/4560-9-0x0000000000A70000-0x0000000000A87000-memory.dmp

Filesize
92KB

Download
memory/4560-32-0x0000000000A70000-0x0000000000A87000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads