3fb198cf4a5545bb79f4dbf936692ff3943bbbb04711b31f4fc1a517f5edfc5b

Analysis

max time kernel
141s
max time network
104s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
03-02-2024 06:48

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General

Target

8bac55a534ad89f99ca79c59f0f03619.exe
Size

116KB
MD5

8bac55a534ad89f99ca79c59f0f03619
SHA1

16d9ab921af13b46c94f0d6196f4311f8f1f9e0b
SHA256

3fb198cf4a5545bb79f4dbf936692ff3943bbbb04711b31f4fc1a517f5edfc5b
SHA512

72205b22eb7bd6660e2dccdb7c19e4d8fbd9be7b67b0ace5f242f8ea04ef8dbf6d91c290c9b9be4106f65f6164c1cf41446823b02fa50a0d1a74cc3694151ae9
SSDEEP

3072:SKcWmjRrz3r7ri23cukeAHZveROd0/zHvrvz8FibjE5Ov:hGnrrieA5WROGwFiXb

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
388	p9gqI86ZyQpU5Du.exe
1208	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/4176-0-0x0000000000530000-0x0000000000547000-memory.dmp	upx
behavioral2/memory/1208-9-0x0000000000570000-0x0000000000587000-memory.dmp	upx
behavioral2/files/0x0007000000023232-6.dat	upx
behavioral2/memory/4176-8-0x0000000000530000-0x0000000000547000-memory.dmp	upx
behavioral2/files/0x0003000000022778-13.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"	CTS.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	8bac55a534ad89f99ca79c59f0f03619.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	8bac55a534ad89f99ca79c59f0f03619.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4176	8bac55a534ad89f99ca79c59f0f03619.exe
Token: SeDebugPrivilege	1208	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4176 wrote to memory of 388	4176	8bac55a534ad89f99ca79c59f0f03619.exe	87
PID 4176 wrote to memory of 388	4176	8bac55a534ad89f99ca79c59f0f03619.exe	87
PID 4176 wrote to memory of 388	4176	8bac55a534ad89f99ca79c59f0f03619.exe	87
PID 4176 wrote to memory of 1208	4176	8bac55a534ad89f99ca79c59f0f03619.exe	86
PID 4176 wrote to memory of 1208	4176	8bac55a534ad89f99ca79c59f0f03619.exe	86
PID 4176 wrote to memory of 1208	4176	8bac55a534ad89f99ca79c59f0f03619.exe	86

C:\Users\Admin\AppData\Local\Temp\8bac55a534ad89f99ca79c59f0f03619.exe
"C:\Users\Admin\AppData\Local\Temp\8bac55a534ad89f99ca79c59f0f03619.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4176
- 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:1208
- C:\Users\Admin\AppData\Local\Temp\p9gqI86ZyQpU5Du.exe
  C:\Users\Admin\AppData\Local\Temp\p9gqI86ZyQpU5Du.exe
  2⤵
  - Executes dropped EXE
  PID:388

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
b4a5bc31cd0c86dc3f2547c9cabcb36e

SHA1
01f54890e1bbfe02e5092310c9a1f67d0b231ade

SHA256
a4af9271b4b8b03b7f2919fd36652f77d3c3b5094bf8029295cc7dc96a8ca427

SHA512
ac0eae83fc71526eb01f41ecd29db45e67f17af0aec1056bb948bf0c5db305cea0667fbd256c78de619511401ae6a2578941f07d86c372eb04606a22226cab76

Download Submit
C:\Users\Admin\AppData\Local\Temp\p9gqI86ZyQpU5Du.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/1208-9-0x0000000000570000-0x0000000000587000-memory.dmp

Filesize
92KB

Download
memory/4176-0-0x0000000000530000-0x0000000000547000-memory.dmp

Filesize
92KB

Download
memory/4176-8-0x0000000000530000-0x0000000000547000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads