6d48a4399aafabf4110a0b624ff21cea51616a6e4ec35c70a762a1b7250e373f

Analysis

max time kernel
143s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06-03-2024 14:19

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General

Target

b79cd78bf2260f39ce8783f622c1d072.exe
Size

35KB
MD5

b79cd78bf2260f39ce8783f622c1d072
SHA1

9c73fb3ec734e9f56edc0d224a1af5905b5048d6
SHA256

6d48a4399aafabf4110a0b624ff21cea51616a6e4ec35c70a762a1b7250e373f
SHA512

7c9f965f9b250d6039f227ebc60adcadc89f3f9fc6a450552764a58534bb18cfbe05157bec770e59ad1c6fb26f1e4c52750ee39b82e827c85f60289932dc6015
SSDEEP

768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+Is:s9Z3KcR4mjD9r8226+F

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2392	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 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/728-0-0x0000000000310000-0x0000000000327000-memory.dmp	upx
behavioral2/memory/728-6-0x0000000000310000-0x0000000000327000-memory.dmp	upx
behavioral2/memory/2392-8-0x0000000000E10000-0x0000000000E27000-memory.dmp	upx
behavioral2/files/0x00090000000224f7-7.dat	upx
behavioral2/files/0x00030000000227c3-12.dat	upx
behavioral2/files/0x000300000001e9a0-30.dat	upx
behavioral2/memory/2392-32-0x0000000000E10000-0x0000000000E27000-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"	b79cd78bf2260f39ce8783f622c1d072.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	b79cd78bf2260f39ce8783f622c1d072.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	728	b79cd78bf2260f39ce8783f622c1d072.exe
Token: SeDebugPrivilege	2392	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 728 wrote to memory of 2392	728	b79cd78bf2260f39ce8783f622c1d072.exe	89
PID 728 wrote to memory of 2392	728	b79cd78bf2260f39ce8783f622c1d072.exe	89
PID 728 wrote to memory of 2392	728	b79cd78bf2260f39ce8783f622c1d072.exe	89

C:\Users\Admin\AppData\Local\Temp\b79cd78bf2260f39ce8783f622c1d072.exe
"C:\Users\Admin\AppData\Local\Temp\b79cd78bf2260f39ce8783f622c1d072.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:728
- 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:2392

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\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
358KB

MD5
74437a89a97a09383513e9896507335b

SHA1
765b4ef3aaa66388cb76807d0a6d67814e15631a

SHA256
11c9d1e97db94ea2935e57929cf615bb68f549a556ab9f4ed444691b2a647ae1

SHA512
9db1eab51aa82a5d622893a0cb2603a607d9e1e3a7cdded4156376d44e4aed702dffd74a9e235257cd0f6c016ad022d3d9f464529b991529e7e311a15c7c58e3

Download Submit
C:\Users\Admin\AppData\Local\Temp\s1deLtA1NxGSWlb.exe

Filesize
35KB

MD5
06c2d11b4b3fbc0a23bdc8458405c73b

SHA1
45a785f2200472337fc26199589d35c88694b884

SHA256
44bef6974b2184f0dc5d2aa28db877131739696de05f58a1aa3052386d221f30

SHA512
0182bd196dabc53e557f289e030073213fd6c167124349aa9ab53809820e7dc63a33e99ec47d757a0371c066ca917c9ed57b3fae0a7a666cbdc6d35afec1a703

Download Submit
C:\Windows\CTS.exe

Filesize
35KB

MD5
93e5f18caebd8d4a2c893e40e5f38232

SHA1
fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

SHA256
a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

SHA512
986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

Download Submit
memory/728-0-0x0000000000310000-0x0000000000327000-memory.dmp

Filesize
92KB

Download
memory/728-6-0x0000000000310000-0x0000000000327000-memory.dmp

Filesize
92KB

Download
memory/2392-8-0x0000000000E10000-0x0000000000E27000-memory.dmp

Filesize
92KB

Download
memory/2392-32-0x0000000000E10000-0x0000000000E27000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads