d9a53ddd01fe8ec217586f578e8b383b7408880815fc8ebf8989d796187e3eaa

Analysis

max time kernel
148s
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
08-03-2024 05:41

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General

Target

baa768926b004c4c808054834ce66f15.exe
Size

116KB
MD5

baa768926b004c4c808054834ce66f15
SHA1

d5218d83ce8ec63076a352cc18732b7ce1fd3a26
SHA256

d9a53ddd01fe8ec217586f578e8b383b7408880815fc8ebf8989d796187e3eaa
SHA512

ec386ceb33907f9c756e04c71427e2c0ab6c435ec58b068e8a52aa814f49a1a343b44a0cf9c8a5862e1125264aa137a28b4a1fde4a629218de9506f638261ee3
SSDEEP

3072:SKcWmjRrz34Z3Jn4iR6bbpQZKHCCDV59V1/iEiG+pU:hG4MiRf6BVZ87a

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1680	aT3OLdkEHJVYunZ.exe
3436	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
behavioral2/memory/2432-0-0x00000000006B0000-0x00000000006C7000-memory.dmp	upx
behavioral2/memory/3436-8-0x00000000004E0000-0x00000000004F7000-memory.dmp	upx
behavioral2/memory/2432-9-0x00000000006B0000-0x00000000006C7000-memory.dmp	upx
behavioral2/files/0x0009000000023215-7.dat	upx
behavioral2/files/0x000600000002275d-12.dat	upx
behavioral2/memory/3436-31-0x00000000004E0000-0x00000000004F7000-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"	CTS.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	baa768926b004c4c808054834ce66f15.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	baa768926b004c4c808054834ce66f15.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2432	baa768926b004c4c808054834ce66f15.exe
Token: SeDebugPrivilege	3436	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2432 wrote to memory of 1680	2432	baa768926b004c4c808054834ce66f15.exe	88
PID 2432 wrote to memory of 1680	2432	baa768926b004c4c808054834ce66f15.exe	88
PID 2432 wrote to memory of 1680	2432	baa768926b004c4c808054834ce66f15.exe	88
PID 2432 wrote to memory of 3436	2432	baa768926b004c4c808054834ce66f15.exe	89
PID 2432 wrote to memory of 3436	2432	baa768926b004c4c808054834ce66f15.exe	89
PID 2432 wrote to memory of 3436	2432	baa768926b004c4c808054834ce66f15.exe	89

C:\Users\Admin\AppData\Local\Temp\baa768926b004c4c808054834ce66f15.exe
"C:\Users\Admin\AppData\Local\Temp\baa768926b004c4c808054834ce66f15.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Users\Admin\AppData\Local\Temp\aT3OLdkEHJVYunZ.exe
  C:\Users\Admin\AppData\Local\Temp\aT3OLdkEHJVYunZ.exe
  2⤵
  - Executes dropped EXE
  PID:1680
- 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:3436

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

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Downloads

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

Filesize
351KB

MD5
51daf7b003cb3b54d9752fee98c35c58

SHA1
a2680e6dcb9aa4a7c65c7feb1490f1c3a5276093

SHA256
b0e101835d33460cff6fef4c82c9a3d1ac607d2a86ea619e126c5e8320fd52de

SHA512
c432da82e23084aea96ec89b756f25022875c3b769fbdcfaef8cb0447110a9764e88964937a855b278b511029a190f87c7898f9ac9a90639b391c9537ecd4468

Download Submit
C:\Users\Admin\AppData\Local\Temp\aT3OLdkEHJVYunZ.exe

Filesize
87KB

MD5
015207664f86b0d334146d7bc7551a0f

SHA1
b466beca074c3c4a500bfa00fd691cf0fe300d8c

SHA256
3212cacc4d669f381ad1048e43726ec2841de32135438992c55f792bf03beafc

SHA512
6ced0d294fd9c330cab20739336c6cd4c1e202d521fd41c6fd6bdfe7e720247c84ac10a7e25855d3cc9b08f2d9251798eb52383527a9363c5126a6b205ff0657

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/2432-0-0x00000000006B0000-0x00000000006C7000-memory.dmp

Filesize
92KB

Download
memory/2432-9-0x00000000006B0000-0x00000000006C7000-memory.dmp

Filesize
92KB

Download
memory/3436-8-0x00000000004E0000-0x00000000004F7000-memory.dmp

Filesize
92KB

Download
memory/3436-31-0x00000000004E0000-0x00000000004F7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads