d78bfa2a5b36e21a96eba053882465f0950ce5fdf1b5f4ab6c00a5e56faa2c78

Analysis

max time kernel
141s
max time network
131s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
29/12/2023, 20:24

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General

Target

03019ca8a4cab959ba202bba1990a3ff.exe
Size

103KB
MD5

03019ca8a4cab959ba202bba1990a3ff
SHA1

24ebcfbe2687d451831e0f146bfa3cad0037b1e0
SHA256

d78bfa2a5b36e21a96eba053882465f0950ce5fdf1b5f4ab6c00a5e56faa2c78
SHA512

310604f051ce8ae6e3338140d5c692ca41f2b6b133e42332bd58d48fc36ccd74dfc54c48c1bb7293aa7b178eb05986ce44d62f99e16fe792a9f84e58c3ba8daa
SSDEEP

3072:sr3KcWmjRrzSw4Sg7/2PHoF/hEXCqROe0Dzj:/x/iHouC+t0Dzj

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2944	VOk21OBVVo0gEFZ.exe
2288	CTS.exe

Loads dropped DLL 2 IoCs

pid	Process
3064	03019ca8a4cab959ba202bba1990a3ff.exe
3064	03019ca8a4cab959ba202bba1990a3ff.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 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/3064-0-0x0000000000BD0000-0x0000000000BE7000-memory.dmp	upx
behavioral1/files/0x000d0000000122f6-16.dat	upx
behavioral1/memory/3064-13-0x0000000000BD0000-0x0000000000BE7000-memory.dmp	upx
behavioral1/memory/2288-18-0x0000000000AF0000-0x0000000000B07000-memory.dmp	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"	03019ca8a4cab959ba202bba1990a3ff.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	03019ca8a4cab959ba202bba1990a3ff.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3064	03019ca8a4cab959ba202bba1990a3ff.exe
Token: SeDebugPrivilege	2288	CTS.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3064 wrote to memory of 2944	3064	03019ca8a4cab959ba202bba1990a3ff.exe	28
PID 3064 wrote to memory of 2944	3064	03019ca8a4cab959ba202bba1990a3ff.exe	28
PID 3064 wrote to memory of 2944	3064	03019ca8a4cab959ba202bba1990a3ff.exe	28
PID 3064 wrote to memory of 2944	3064	03019ca8a4cab959ba202bba1990a3ff.exe	28
PID 3064 wrote to memory of 2288	3064	03019ca8a4cab959ba202bba1990a3ff.exe	29
PID 3064 wrote to memory of 2288	3064	03019ca8a4cab959ba202bba1990a3ff.exe	29
PID 3064 wrote to memory of 2288	3064	03019ca8a4cab959ba202bba1990a3ff.exe	29
PID 3064 wrote to memory of 2288	3064	03019ca8a4cab959ba202bba1990a3ff.exe	29

C:\Users\Admin\AppData\Local\Temp\03019ca8a4cab959ba202bba1990a3ff.exe
"C:\Users\Admin\AppData\Local\Temp\03019ca8a4cab959ba202bba1990a3ff.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3064
- C:\Users\Admin\AppData\Local\Temp\VOk21OBVVo0gEFZ.exe
  C:\Users\Admin\AppData\Local\Temp\VOk21OBVVo0gEFZ.exe
  2⤵
  - Executes dropped EXE
  PID:2944
- 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:2288

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:\Windows\CTS.exe

Filesize
35KB

MD5
93e5f18caebd8d4a2c893e40e5f38232

SHA1
fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

SHA256
a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

SHA512
986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

Download Submit
\Users\Admin\AppData\Local\Temp\VOk21OBVVo0gEFZ.exe

Filesize
67KB

MD5
50e9d1438f14e3e345db6b9f15473be0

SHA1
20b511d23f4df169b10d6cd022e90b3441af038a

SHA256
6852f4faa2d0ae8be06c198c40875c9ecc466c2da9f6899b6d1f80e7df80b5e9

SHA512
65dcd5c3ee197727beef8c5bfef4073d9ed93c6662827721310dcbc0ea02c8334dbe42a47a2aee1cbe35a2943d6518c93a1d77325e58ad74cb93828b6c691ea9

Download Submit
memory/2288-18-0x0000000000AF0000-0x0000000000B07000-memory.dmp

Filesize
92KB

Download
memory/3064-0-0x0000000000BD0000-0x0000000000BE7000-memory.dmp

Filesize
92KB

Download
memory/3064-13-0x0000000000BD0000-0x0000000000BE7000-memory.dmp

Filesize
92KB

Download
memory/3064-15-0x0000000000070000-0x0000000000087000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads