b9b4e5f5df7e9e21bd7dfd0c343e8117580c2b9270e1956e5b1cedc423eac089

Analysis

max time kernel
147s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
18/03/2024, 20:36

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General

Target

d477fe148af2115e503fb4c00a2ba2cd.exe
Size

116KB
MD5

d477fe148af2115e503fb4c00a2ba2cd
SHA1

1c54691573472f192cf2a180dfeb7a7fa3ac85a0
SHA256

b9b4e5f5df7e9e21bd7dfd0c343e8117580c2b9270e1956e5b1cedc423eac089
SHA512

b5c597db190210a046b522f70a15dcd13a7b50685dce487a39379f1115abb23a121cb260750cef4b277619e43d454c9ab45cf238a3e6c6b8e7e7bbb8283d3cdd
SSDEEP

3072:SKcWmjRrz3jdppN26isswS+wznwe/1CDn67I:hGjdpD26iF+wzwfDnJ

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1936	OqU4814guwWqUaY.exe
4272	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/4924-0-0x00000000002F0000-0x0000000000307000-memory.dmp	upx
behavioral2/memory/4272-7-0x0000000000910000-0x0000000000927000-memory.dmp	upx
behavioral2/files/0x0008000000023232-6.dat	upx
behavioral2/memory/4924-8-0x00000000002F0000-0x0000000000307000-memory.dmp	upx
behavioral2/files/0x000400000001e807-13.dat	upx
behavioral2/memory/4272-31-0x0000000000910000-0x0000000000927000-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"	d477fe148af2115e503fb4c00a2ba2cd.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	d477fe148af2115e503fb4c00a2ba2cd.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4924	d477fe148af2115e503fb4c00a2ba2cd.exe
Token: SeDebugPrivilege	4272	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4924 wrote to memory of 1936	4924	d477fe148af2115e503fb4c00a2ba2cd.exe	88
PID 4924 wrote to memory of 1936	4924	d477fe148af2115e503fb4c00a2ba2cd.exe	88
PID 4924 wrote to memory of 1936	4924	d477fe148af2115e503fb4c00a2ba2cd.exe	88
PID 4924 wrote to memory of 4272	4924	d477fe148af2115e503fb4c00a2ba2cd.exe	90
PID 4924 wrote to memory of 4272	4924	d477fe148af2115e503fb4c00a2ba2cd.exe	90
PID 4924 wrote to memory of 4272	4924	d477fe148af2115e503fb4c00a2ba2cd.exe	90

C:\Users\Admin\AppData\Local\Temp\d477fe148af2115e503fb4c00a2ba2cd.exe
"C:\Users\Admin\AppData\Local\Temp\d477fe148af2115e503fb4c00a2ba2cd.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4924
- C:\Users\Admin\AppData\Local\Temp\OqU4814guwWqUaY.exe
  C:\Users\Admin\AppData\Local\Temp\OqU4814guwWqUaY.exe
  2⤵
  - Executes dropped EXE
  PID:1936
- 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:4272

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
352KB

MD5
b734a50cdece4a6e4e58cfacbe26b7b8

SHA1
65e35e30099e48912183b4d0f084c67b054a494c

SHA256
c2b33004536b9c86bb9d5800347d407532106d4cd1232da545a123820fe08990

SHA512
355518a0b1b33b1bd831cb8adec588004556db31d0955ba21d46382376cbfedb2361138e7f259591b9fc6cc740b00151958f37d06d19cdc36bb792ba698fe6c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\OqU4814guwWqUaY.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/4272-7-0x0000000000910000-0x0000000000927000-memory.dmp

Filesize
92KB

Download
memory/4272-31-0x0000000000910000-0x0000000000927000-memory.dmp

Filesize
92KB

Download
memory/4924-0-0x00000000002F0000-0x0000000000307000-memory.dmp

Filesize
92KB

Download
memory/4924-8-0x00000000002F0000-0x0000000000307000-memory.dmp

Filesize
92KB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads