b56745205d9ce78fa023d94a0ef42415ba4bd5a00dba5a3769748822f5109f4e

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
25/02/2024, 10:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

a38bc0daf1f8ae08d134727a78c0d9fc.exe
Size

75KB
MD5

a38bc0daf1f8ae08d134727a78c0d9fc
SHA1

c10d8d808f5e9f65f530ce9eed9c649033958bd6
SHA256

b56745205d9ce78fa023d94a0ef42415ba4bd5a00dba5a3769748822f5109f4e
SHA512

6fd04f14acfc46565d214d018b0ba738f67dc0756325ac34bbb1d6659773f136f04211677c8d992e99ed1fb6acef66219444eb2dc5edd45c7c0016ef17a4c772
SSDEEP

1536:SKcR4mjD9r823FHKcR4mjD9r823FYFtInHNc:SKcWmjRrz3ZKcWmjRrz3UOi

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4272	VnzrAWHdZXgoWQM.exe
1504	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/2740-0-0x0000000000480000-0x0000000000497000-memory.dmp	upx
behavioral2/files/0x000700000002322e-6.dat	upx
behavioral2/memory/1504-9-0x00000000006D0000-0x00000000006E7000-memory.dmp	upx
behavioral2/memory/2740-7-0x0000000000480000-0x0000000000497000-memory.dmp	upx
behavioral2/files/0x00030000000227a8-13.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"	a38bc0daf1f8ae08d134727a78c0d9fc.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	a38bc0daf1f8ae08d134727a78c0d9fc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2740	a38bc0daf1f8ae08d134727a78c0d9fc.exe
Token: SeDebugPrivilege	1504	CTS.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2740 wrote to memory of 4272	2740	a38bc0daf1f8ae08d134727a78c0d9fc.exe	84
PID 2740 wrote to memory of 4272	2740	a38bc0daf1f8ae08d134727a78c0d9fc.exe	84
PID 2740 wrote to memory of 1504	2740	a38bc0daf1f8ae08d134727a78c0d9fc.exe	86
PID 2740 wrote to memory of 1504	2740	a38bc0daf1f8ae08d134727a78c0d9fc.exe	86
PID 2740 wrote to memory of 1504	2740	a38bc0daf1f8ae08d134727a78c0d9fc.exe	86

C:\Users\Admin\AppData\Local\Temp\a38bc0daf1f8ae08d134727a78c0d9fc.exe
"C:\Users\Admin\AppData\Local\Temp\a38bc0daf1f8ae08d134727a78c0d9fc.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2740
- C:\Users\Admin\AppData\Local\Temp\VnzrAWHdZXgoWQM.exe
  C:\Users\Admin\AppData\Local\Temp\VnzrAWHdZXgoWQM.exe
  2⤵
  - Executes dropped EXE
  PID:4272
- 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:1504

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
380KB

MD5
97cc7d761232edbffa012794c87473b7

SHA1
4ccd926aafe5c8d211109054f48cff6dcf74c816

SHA256
92b53b7f1bfee525fc8b896e95fb41bb05315f24848997068a12ef91490376a8

SHA512
0f1c7d89e7016d5d41aa6cfe83e6255b2d88e8b482348fb57e9c0543cb0e046181e99bcdba0c053a1cb57ebfd3030ad64379628744a41a5f46173ce43ecc016f

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

Filesize
16KB

MD5
95c9a037d3b01a21275aa6cc73b122a2

SHA1
c19ed8afc95b91d0cc6bc075047de30eae015386

SHA256
1d5edcbae3258efb07cc57ba8d7cd1ebe2eb5106ef1a894b787ed2857952c523

SHA512
761bb76261712a597f610e3162fa1514d2f56d69d03d1b76b51c6b2a7b0c88bbd385b7dc849c6913f7d861fb3aed8551f26f640d90b621e8629abe2e4bfb6160

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/1504-9-0x00000000006D0000-0x00000000006E7000-memory.dmp

Filesize
92KB

Download
memory/2740-0-0x0000000000480000-0x0000000000497000-memory.dmp

Filesize
92KB

Download
memory/2740-7-0x0000000000480000-0x0000000000497000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads