30dfe76f996ac5c9d72ea37590a45ff6fe44ca41756efba116fd744e99dadb35

Analysis

max time kernel
140s
max time network
125s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
07/03/2024, 23:28

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General

Target

b9eea739f932294647908d7df42f9847.exe
Size

35KB
MD5

b9eea739f932294647908d7df42f9847
SHA1

a0fd2e55b635809eed3f8747916ec0003ce14dad
SHA256

30dfe76f996ac5c9d72ea37590a45ff6fe44ca41756efba116fd744e99dadb35
SHA512

943d81d71058a8efc4e086d694cd034f10a83711daf601f9de56c8a0bd82430bd059f91e73cd3425a5a20399c8a328bae585fbd2709251da9fa9a2d4473fbf42
SSDEEP

768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+Iyf:s9Z3KcR4mjD9r8226+1f

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
320	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/2328-0-0x0000000000B40000-0x0000000000B57000-memory.dmp	upx
behavioral1/memory/2328-8-0x0000000000B40000-0x0000000000B57000-memory.dmp	upx
behavioral1/files/0x000a00000001431c-7.dat	upx
behavioral1/memory/320-12-0x00000000000E0000-0x00000000000F7000-memory.dmp	upx
behavioral1/files/0x000c00000001231a-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"	b9eea739f932294647908d7df42f9847.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	CTS.exe
File created	C:\Windows\CTS.exe	b9eea739f932294647908d7df42f9847.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2328	b9eea739f932294647908d7df42f9847.exe
Token: SeDebugPrivilege	320	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 320	2328	b9eea739f932294647908d7df42f9847.exe	28
PID 2328 wrote to memory of 320	2328	b9eea739f932294647908d7df42f9847.exe	28
PID 2328 wrote to memory of 320	2328	b9eea739f932294647908d7df42f9847.exe	28
PID 2328 wrote to memory of 320	2328	b9eea739f932294647908d7df42f9847.exe	28

C:\Users\Admin\AppData\Local\Temp\b9eea739f932294647908d7df42f9847.exe
"C:\Users\Admin\AppData\Local\Temp\b9eea739f932294647908d7df42f9847.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2328
- 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:320

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\Hf8AJbq10JdIZsj.exe

Filesize
35KB

MD5
0fb0770234d06d50a3fd5349bf63da23

SHA1
da9a28271b98f9a62ef9c0ae1c9df71cb2b0e265

SHA256
f545c19c58bce0eda04abd5b203996b7ccd22a54379e8f1c04dd66b3ae06cd68

SHA512
df3d3e876bc7d2927e762ee3fb938cba975ca1501289e03cb4349bf8dcb07b3858388dce5523c41eab31e881901e91433d12363cc7488fae314fe28b19f1c823

Download Submit
C:\Windows\CTS.exe

Filesize
35KB

MD5
93e5f18caebd8d4a2c893e40e5f38232

SHA1
fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

SHA256
a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

SHA512
986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

Download Submit
memory/320-12-0x00000000000E0000-0x00000000000F7000-memory.dmp

Filesize
92KB

Download
memory/2328-0-0x0000000000B40000-0x0000000000B57000-memory.dmp

Filesize
92KB

Download
memory/2328-8-0x0000000000B40000-0x0000000000B57000-memory.dmp

Filesize
92KB

Download
memory/2328-11-0x0000000000170000-0x0000000000187000-memory.dmp

Filesize
92KB

Download
memory/2328-18-0x0000000000170000-0x0000000000187000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads