28a537f32308bc36717340d7844e41a7343500f77a44a00556eac553b6110e2b

Analysis

max time kernel
141s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08-03-2024 12:54

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General

Target

bb4fc5f64c6b680c99e385a031dcfcc2.exe
Size

30KB
MD5

bb4fc5f64c6b680c99e385a031dcfcc2
SHA1

4431346903ba8d27e40c1a812bfbe493f7f06d56
SHA256

28a537f32308bc36717340d7844e41a7343500f77a44a00556eac553b6110e2b
SHA512

9e54965da6b96b59da4bbc870048dacd4bba54384a23dc852457df743990b89b07a1f17d8afe2a945756577df337b331c40ba08005c54bb11e017f63d69e7c52
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFxf:SKcR4mjD9r823F5

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2748	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
behavioral1/memory/2508-0-0x0000000000F10000-0x0000000000F27000-memory.dmp	upx
behavioral1/memory/2508-8-0x0000000000F10000-0x0000000000F27000-memory.dmp	upx
behavioral1/memory/2508-9-0x00000000000E0000-0x00000000000F7000-memory.dmp	upx
behavioral1/memory/2748-12-0x00000000012E0000-0x00000000012F7000-memory.dmp	upx
behavioral1/files/0x000b000000014b6d-11.dat	upx
behavioral1/files/0x000800000001222a-15.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"	bb4fc5f64c6b680c99e385a031dcfcc2.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	bb4fc5f64c6b680c99e385a031dcfcc2.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2508	bb4fc5f64c6b680c99e385a031dcfcc2.exe
Token: SeDebugPrivilege	2748	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2508 wrote to memory of 2748	2508	bb4fc5f64c6b680c99e385a031dcfcc2.exe	28
PID 2508 wrote to memory of 2748	2508	bb4fc5f64c6b680c99e385a031dcfcc2.exe	28
PID 2508 wrote to memory of 2748	2508	bb4fc5f64c6b680c99e385a031dcfcc2.exe	28
PID 2508 wrote to memory of 2748	2508	bb4fc5f64c6b680c99e385a031dcfcc2.exe	28

C:\Users\Admin\AppData\Local\Temp\bb4fc5f64c6b680c99e385a031dcfcc2.exe
"C:\Users\Admin\AppData\Local\Temp\bb4fc5f64c6b680c99e385a031dcfcc2.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2508
- 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:2748

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\Temp\V6VWjn3MFbgxuc8.exe

Filesize
30KB

MD5
cd222bf43b3ff7701591ce270aef2b85

SHA1
fe241ccec4c8f56a535eeea21eab1d979f93ab76

SHA256
0d7c1e25385daf7b90061aa3bfa71af4ffb2ef03e246607974592c2f8cd426ba

SHA512
71df43b86b4100a4a9fc19955fa95667b8781460d6a635a491582a5bfa2b646fe7287ad41011356dac7bd5068eed1a9d989ce29a505685e10428d14105716c6c

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/2508-0-0x0000000000F10000-0x0000000000F27000-memory.dmp

Filesize
92KB

Download
memory/2508-8-0x0000000000F10000-0x0000000000F27000-memory.dmp

Filesize
92KB

Download
memory/2508-9-0x00000000000E0000-0x00000000000F7000-memory.dmp

Filesize
92KB

Download
memory/2508-20-0x00000000000E0000-0x00000000000F7000-memory.dmp

Filesize
92KB

Download
memory/2748-12-0x00000000012E0000-0x00000000012F7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads