a5ce0b056a1fea5ce4aa532acf27a78e8640573fcbfad58d5a604f1431701c37

Analysis

max time kernel
141s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
17/01/2024, 23:26

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General

Target

63e2a83c9bbd8236fba1b2fc84bf998e.exe
Size

35KB
MD5

63e2a83c9bbd8236fba1b2fc84bf998e
SHA1

b82dbdb65d8ba0a8ea56d30761b8637d4715ef78
SHA256

a5ce0b056a1fea5ce4aa532acf27a78e8640573fcbfad58d5a604f1431701c37
SHA512

5e418ae21a2b56753d593c671e5934710e1992470948c566e4d64185099e5429291213a54b6f02b4097018d0c6ccf393b0b0d111d0a727f866921f2a3ffb708b
SSDEEP

768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+IV:s9Z3KcR4mjD9r8226+k

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2204	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/832-0-0x0000000000370000-0x0000000000387000-memory.dmp	upx
behavioral1/memory/832-8-0x0000000000370000-0x0000000000387000-memory.dmp	upx
behavioral1/files/0x000d0000000122f6-10.dat	upx
behavioral1/memory/2204-12-0x0000000000380000-0x0000000000397000-memory.dmp	upx
behavioral1/memory/832-9-0x0000000000070000-0x0000000000087000-memory.dmp	upx
behavioral1/files/0x0008000000012257-14.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"	63e2a83c9bbd8236fba1b2fc84bf998e.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	63e2a83c9bbd8236fba1b2fc84bf998e.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	832	63e2a83c9bbd8236fba1b2fc84bf998e.exe
Token: SeDebugPrivilege	2204	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 832 wrote to memory of 2204	832	63e2a83c9bbd8236fba1b2fc84bf998e.exe	28
PID 832 wrote to memory of 2204	832	63e2a83c9bbd8236fba1b2fc84bf998e.exe	28
PID 832 wrote to memory of 2204	832	63e2a83c9bbd8236fba1b2fc84bf998e.exe	28
PID 832 wrote to memory of 2204	832	63e2a83c9bbd8236fba1b2fc84bf998e.exe	28

C:\Users\Admin\AppData\Local\Temp\63e2a83c9bbd8236fba1b2fc84bf998e.exe
"C:\Users\Admin\AppData\Local\Temp\63e2a83c9bbd8236fba1b2fc84bf998e.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:832
- 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:2204

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\ZNWCbMhYnCmcJFW.exe

Filesize
35KB

MD5
9a328569dcbb60a8f28d8a2e69da1209

SHA1
b42dd677907f123a0fa782d5af9f15b4cd8b00ba

SHA256
74c32f166dcbd11c9b9ac018e52c8c3f08a1aee8b41339565d7c473eb3f50e79

SHA512
f5759f51676f754b2960f1f3edf02276cf5334aa7b1a04b631b33c450d4ab22670469833172ac7f0cbb877cd4f51b5eafe0b4eb8144de4bbe23ebf050f0a18dc

Download Submit
C:\Windows\CTS.exe

Filesize
35KB

MD5
93e5f18caebd8d4a2c893e40e5f38232

SHA1
fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

SHA256
a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

SHA512
986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

Download Submit
memory/832-0-0x0000000000370000-0x0000000000387000-memory.dmp

Filesize
92KB

Download
memory/832-8-0x0000000000370000-0x0000000000387000-memory.dmp

Filesize
92KB

Download
memory/832-9-0x0000000000070000-0x0000000000087000-memory.dmp

Filesize
92KB

Download
memory/832-18-0x0000000000070000-0x0000000000087000-memory.dmp

Filesize
92KB

Download
memory/2204-12-0x0000000000380000-0x0000000000397000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads