9468d7fc4c756c99593a5e5711019566813884e41651cc850b66b64c98964906

Analysis

max time kernel
140s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
31-12-2023 21:20

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General

Target

3b1437b8be3d00796e01d7c74f802021.exe
Size

29KB
MD5

3b1437b8be3d00796e01d7c74f802021
SHA1

afb480c8b151a98eae69ee5b5345d89902261621
SHA256

9468d7fc4c756c99593a5e5711019566813884e41651cc850b66b64c98964906
SHA512

ba0690c1b0aa799b0249045df2e58e982704b0a0b267f2b9dd62107c0b0493b40a10f24de51bbd62ddb3bbcb631efb6975dc0b429a6168a11a6ef4343edd7aa2
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFfi:SKcR4mjD9r823F6

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2524	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/2212-0-0x0000000001090000-0x00000000010A7000-memory.dmp	upx
behavioral1/files/0x000a0000000144eb-7.dat	upx
behavioral1/memory/2212-8-0x0000000001090000-0x00000000010A7000-memory.dmp	upx
behavioral1/memory/2524-12-0x0000000001070000-0x0000000001087000-memory.dmp	upx
behavioral1/files/0x000c00000001232d-14.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"	3b1437b8be3d00796e01d7c74f802021.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	3b1437b8be3d00796e01d7c74f802021.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2212	3b1437b8be3d00796e01d7c74f802021.exe
Token: SeDebugPrivilege	2524	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2212 wrote to memory of 2524	2212	3b1437b8be3d00796e01d7c74f802021.exe	28
PID 2212 wrote to memory of 2524	2212	3b1437b8be3d00796e01d7c74f802021.exe	28
PID 2212 wrote to memory of 2524	2212	3b1437b8be3d00796e01d7c74f802021.exe	28
PID 2212 wrote to memory of 2524	2212	3b1437b8be3d00796e01d7c74f802021.exe	28

C:\Users\Admin\AppData\Local\Temp\3b1437b8be3d00796e01d7c74f802021.exe
"C:\Users\Admin\AppData\Local\Temp\3b1437b8be3d00796e01d7c74f802021.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2212
- 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:2524

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\EToOcaPnaA1nqkV.exe

Filesize
29KB

MD5
a0cfcf3324caa9698f7705c3e140bdbf

SHA1
572681e41a75a9f2149923d02b1d7dcdf5eadd96

SHA256
34f390f6d9404400a9f106d0a1c4fcd461c7048563b25ea08c90e55026128061

SHA512
72accef471769c269111b02d2028012d23e8514bde3ec6d24df5eb36f274b115471f1ef3df1d91bb0364f9ec7ec0d13123d42833736c3ea595dc7f083c831bdc

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/2212-0-0x0000000001090000-0x00000000010A7000-memory.dmp

Filesize
92KB

Download
memory/2212-11-0x0000000001070000-0x0000000001087000-memory.dmp

Filesize
92KB

Download
memory/2212-8-0x0000000001090000-0x00000000010A7000-memory.dmp

Filesize
92KB

Download
memory/2212-18-0x0000000001070000-0x0000000001087000-memory.dmp

Filesize
92KB

Download
memory/2524-12-0x0000000001070000-0x0000000001087000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads