a809591b04266451572077942b22fcf5c87a461ec59ed36ec9c7ac31efe52639

Analysis

max time kernel
149s
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
09-03-2024 20:53

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General

Target

bcc7b4c32d0a1247d4ca989500bdda36.exe
Size

29KB
MD5

bcc7b4c32d0a1247d4ca989500bdda36
SHA1

6376596aaaac71858928b272688190aa2d472164
SHA256

a809591b04266451572077942b22fcf5c87a461ec59ed36ec9c7ac31efe52639
SHA512

e329e498d73854a5a13636972392f5384aff7eab3068764afef51096e3992f18011dbd3e015a43a6bf2cddd7ec4069e2984ef0c3e239d14ab4cc17d625ed4c7a
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFo:SKcR4mjD9r823Fo

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2692	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 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3080-0-0x0000000000FA0000-0x0000000000FB7000-memory.dmp	upx
behavioral2/memory/2692-9-0x0000000000930000-0x0000000000947000-memory.dmp	upx
behavioral2/memory/3080-7-0x0000000000FA0000-0x0000000000FB7000-memory.dmp	upx
behavioral2/files/0x000700000002301d-8.dat	upx
behavioral2/files/0x0003000000022744-12.dat	upx
behavioral2/files/0x000700000001ebc7-29.dat	upx
behavioral2/memory/2692-33-0x0000000000930000-0x0000000000947000-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"	bcc7b4c32d0a1247d4ca989500bdda36.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	bcc7b4c32d0a1247d4ca989500bdda36.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3080	bcc7b4c32d0a1247d4ca989500bdda36.exe
Token: SeDebugPrivilege	2692	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3080 wrote to memory of 2692	3080	bcc7b4c32d0a1247d4ca989500bdda36.exe	88
PID 3080 wrote to memory of 2692	3080	bcc7b4c32d0a1247d4ca989500bdda36.exe	88
PID 3080 wrote to memory of 2692	3080	bcc7b4c32d0a1247d4ca989500bdda36.exe	88

C:\Users\Admin\AppData\Local\Temp\bcc7b4c32d0a1247d4ca989500bdda36.exe
"C:\Users\Admin\AppData\Local\Temp\bcc7b4c32d0a1247d4ca989500bdda36.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3080
- 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:2692

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
6500ab52602f30dbdcf4a0b11a6c495e

SHA1
8edeb5e5c4f8eb08ad1a4ef54df1ae6311cafa54

SHA256
542e6beda974b5d0937676ca85ab8b6e272b71ac686190d8c2d2b31925edac4c

SHA512
28771d0be42de197560142d07dfb40c36e94c1ef8aeb9407a42af62a8af47c666169473af017452e0dded865537f1f7fca5182266aacad0db11fa42fa7f1f665

Download Submit
C:\Users\Admin\AppData\Local\Temp\Rhgi1xSOIr1gDih.exe

Filesize
29KB

MD5
e8c015578156d351b7b8d5fb6d6729be

SHA1
c1475571f467147545223b247cdf54d57dee4ffd

SHA256
42c772ac61aa3c5c33e69d37c3729bf166d89c58a8dd596379fdd2e85495286f

SHA512
f80f4a6603b2fa421ebc1bb90401543a8cd65c77ab8e9096800331898f7dfc58f244f8be3622df30beebdbbb788ccb93ef7999a334f0d5c50c2b7b405bb81386

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/2692-9-0x0000000000930000-0x0000000000947000-memory.dmp

Filesize
92KB

Download
memory/2692-33-0x0000000000930000-0x0000000000947000-memory.dmp

Filesize
92KB

Download
memory/3080-0-0x0000000000FA0000-0x0000000000FB7000-memory.dmp

Filesize
92KB

Download
memory/3080-7-0x0000000000FA0000-0x0000000000FB7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads