f0d40f24bfd2ebd8c636766df143465d512d824d7393e9b3ba6d71049319048a

Analysis

max time kernel
149s
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
11-03-2024 18:43

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General

Target

c15546a39ffa17dfcae9dc2b8492d591.exe
Size

30KB
MD5

c15546a39ffa17dfcae9dc2b8492d591
SHA1

766db543c2dd5b68ddc6652903bffb173ff3898d
SHA256

f0d40f24bfd2ebd8c636766df143465d512d824d7393e9b3ba6d71049319048a
SHA512

902883feb852cb3ff5ca31845437ab6b4967de0916186cefd6ed8f698c81e5ad57c028413bda66f17e04885dc907a0ff147e315e8d4fdff92e6e514a6014450e
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEF2+w:SKcR4mjD9r823F2+w

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4460	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/3360-0-0x00000000005E0000-0x00000000005F7000-memory.dmp	upx
behavioral2/files/0x0008000000023223-7.dat	upx
behavioral2/memory/4460-9-0x0000000000290000-0x00000000002A7000-memory.dmp	upx
behavioral2/memory/3360-8-0x00000000005E0000-0x00000000005F7000-memory.dmp	upx
behavioral2/files/0x00040000000006e5-12.dat	upx
behavioral2/files/0x000c0000000226fd-29.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"	c15546a39ffa17dfcae9dc2b8492d591.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	c15546a39ffa17dfcae9dc2b8492d591.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3360	c15546a39ffa17dfcae9dc2b8492d591.exe
Token: SeDebugPrivilege	4460	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3360 wrote to memory of 4460	3360	c15546a39ffa17dfcae9dc2b8492d591.exe	90
PID 3360 wrote to memory of 4460	3360	c15546a39ffa17dfcae9dc2b8492d591.exe	90
PID 3360 wrote to memory of 4460	3360	c15546a39ffa17dfcae9dc2b8492d591.exe	90

C:\Users\Admin\AppData\Local\Temp\c15546a39ffa17dfcae9dc2b8492d591.exe
"C:\Users\Admin\AppData\Local\Temp\c15546a39ffa17dfcae9dc2b8492d591.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3360
- 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:4460

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
b49e227ec86a3b4f3cba0de134c45aaa

SHA1
56f6967b2090eb511d87beb1ef00a53d645185a1

SHA256
30eb1eec47eac2230329bbf5c0376aa48e681b79a005227db7393dd3bbb520ac

SHA512
723a2d0229101cca4a2bf87d237205f2883c395363634325f2179f8445768325eaaf62200cbde0884c82bb628679ebdec46a2499d82704cf6367fb93082b8f2a

Download Submit
C:\Users\Admin\AppData\Local\Temp\BVhQotvrwbDJvp2.exe

Filesize
30KB

MD5
05610789c9afd421fe6c1a4bd8399144

SHA1
2b42dd1ff702d08861ad58725aae786dce2b457d

SHA256
3420fce9b7b4ca7d42c8eeb18d690d0e847314e25099a03227bc152f6e261cb2

SHA512
17fed2a2ca6fb3cce934a7cd5d05b05263e89fc4160c590d924b0be304bbabf8775a19daea133d68eef4c46c60e7a106180229208c5f55f248c6ba57b6dc6551

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/3360-0-0x00000000005E0000-0x00000000005F7000-memory.dmp

Filesize
92KB

Download
memory/3360-8-0x00000000005E0000-0x00000000005F7000-memory.dmp

Filesize
92KB

Download
memory/4460-9-0x0000000000290000-0x00000000002A7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads