bf064f8c732b0cec2963f2a2fe83c58f512d16043279a3aa3529d0b7a3656dab

Analysis

max time kernel
141s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
22/12/2023, 12:48

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General

Target

8e671eca2079203f119ca8e861e487ef.exe
Size

30KB
MD5

8e671eca2079203f119ca8e861e487ef
SHA1

5312b7a795bb568e96540099154148d71cfbea8a
SHA256

bf064f8c732b0cec2963f2a2fe83c58f512d16043279a3aa3529d0b7a3656dab
SHA512

abb3d03d4d696f5d903311f5b14de2a97d6c4f6f764cf8ad8fa83aa6688eb1c3a69ba081b1eb5864c46f84f6e96c53d8e2ee890e3901964c47bcc924887f66d5
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFm:SKcR4mjD9r823Fm

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2320	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
behavioral1/memory/2000-0-0x0000000000A70000-0x0000000000A87000-memory.dmp	upx
behavioral1/files/0x000a000000012251-10.dat	upx
behavioral1/memory/2320-12-0x0000000000B60000-0x0000000000B77000-memory.dmp	upx
behavioral1/memory/2000-8-0x0000000000A70000-0x0000000000A87000-memory.dmp	upx
behavioral1/files/0x00090000000120e1-15.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"	8e671eca2079203f119ca8e861e487ef.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	8e671eca2079203f119ca8e861e487ef.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2000	8e671eca2079203f119ca8e861e487ef.exe
Token: SeDebugPrivilege	2320	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 2320	2000	8e671eca2079203f119ca8e861e487ef.exe	28
PID 2000 wrote to memory of 2320	2000	8e671eca2079203f119ca8e861e487ef.exe	28
PID 2000 wrote to memory of 2320	2000	8e671eca2079203f119ca8e861e487ef.exe	28
PID 2000 wrote to memory of 2320	2000	8e671eca2079203f119ca8e861e487ef.exe	28

C:\Users\Admin\AppData\Local\Temp\8e671eca2079203f119ca8e861e487ef.exe
"C:\Users\Admin\AppData\Local\Temp\8e671eca2079203f119ca8e861e487ef.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2000
- 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:2320

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\zXbWc0lhiTpG8Qc.exe

Filesize
30KB

MD5
c2d62dfd1e467acac7569f9bdeed223c

SHA1
0f955f33777d7ef9af7b7713c246f7bc717b68ce

SHA256
8070f4075e7a5fd1604dd643d75d47bc9f0af02a05cbf7e156c4dbf27245a7cf

SHA512
8f53560b7d528cb462cc1edab450c728b82e490544d6c48df6b61df9825fba58c8649c1df08b9cdf503ccd5068e890e9c0714d88fe60d968921f02eabb825eda

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/2000-0-0x0000000000A70000-0x0000000000A87000-memory.dmp

Filesize
92KB

Download
memory/2000-9-0x0000000000070000-0x0000000000087000-memory.dmp

Filesize
92KB

Download
memory/2000-8-0x0000000000A70000-0x0000000000A87000-memory.dmp

Filesize
92KB

Download
memory/2000-20-0x0000000000070000-0x0000000000087000-memory.dmp

Filesize
92KB

Download
memory/2320-12-0x0000000000B60000-0x0000000000B77000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads