2b67832d57df0c5a133fc5d252c836d752e73541d18ee83264ce1fa1ca2f7024

Analysis

max time kernel
142s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
10/03/2024, 10:10

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General

Target

be56f7870daba51872c7ab4b6d3b7a29.exe
Size

41KB
MD5

be56f7870daba51872c7ab4b6d3b7a29
SHA1

90803adb28d41708b46857024fecd97608cfb452
SHA256

2b67832d57df0c5a133fc5d252c836d752e73541d18ee83264ce1fa1ca2f7024
SHA512

fbf5a1f7fc574602572424ada1725dc5310b526799beeb17d04b21ba005be19c5e48491de2e4af40498f2545bbcfe6e9b9d2a4f0e66697bfb39f9aeb76aca4df
SSDEEP

768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+I9vzineMf:s9Z3KcR4mjD9r8226+MieO

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3296	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/1616-0-0x0000000000C40000-0x0000000000C57000-memory.dmp	upx
behavioral2/files/0x00090000000231e9-6.dat	upx
behavioral2/memory/1616-7-0x0000000000C40000-0x0000000000C57000-memory.dmp	upx
behavioral2/memory/3296-8-0x0000000000D90000-0x0000000000DA7000-memory.dmp	upx
behavioral2/files/0x000500000001e804-12.dat	upx
behavioral2/files/0x000c00000002314f-29.dat	upx
behavioral2/memory/3296-31-0x0000000000D90000-0x0000000000DA7000-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"	be56f7870daba51872c7ab4b6d3b7a29.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	be56f7870daba51872c7ab4b6d3b7a29.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1616	be56f7870daba51872c7ab4b6d3b7a29.exe
Token: SeDebugPrivilege	3296	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1616 wrote to memory of 3296	1616	be56f7870daba51872c7ab4b6d3b7a29.exe	85
PID 1616 wrote to memory of 3296	1616	be56f7870daba51872c7ab4b6d3b7a29.exe	85
PID 1616 wrote to memory of 3296	1616	be56f7870daba51872c7ab4b6d3b7a29.exe	85

C:\Users\Admin\AppData\Local\Temp\be56f7870daba51872c7ab4b6d3b7a29.exe
"C:\Users\Admin\AppData\Local\Temp\be56f7870daba51872c7ab4b6d3b7a29.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1616
- 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:3296

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
1cf6942c3c29526504eb5c720e8f8529

SHA1
82eb3bf5115da2dab89189fc4e225dd2d4445b52

SHA256
a33ec0a669b4a03059e76e5d11b863c3406f0389c42028734ef9f9cd8ca54038

SHA512
f638865227a449799c68a3d4a6362fa61bd5a09b5739db4c6c9ef817200065ca84953f7bb1b7827990c2d31450aff07310948e5cdd7cff24fc11189ccf37c4a8

Download Submit
C:\Users\Admin\AppData\Local\Temp\WZW4W44nla14Auu.exe

Filesize
41KB

MD5
4f3f2e7352bf9d5d1e57387ac7609c19

SHA1
d6993e817ec6dbd975453dffb07016f53967a2cd

SHA256
a97fac29164acc93877b35c06405d053ff9a7a535fc2dba1597d1590d4190243

SHA512
cc310ca093d9a57b61c92aaa23b2c24616a3608939512e551133a3535db783f88298ff335b6784dff2a1d175980985a4de4d369e4572953d740487476cd754fe

Download Submit
C:\Windows\CTS.exe

Filesize
35KB

MD5
93e5f18caebd8d4a2c893e40e5f38232

SHA1
fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

SHA256
a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

SHA512
986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

Download Submit
memory/1616-0-0x0000000000C40000-0x0000000000C57000-memory.dmp

Filesize
92KB

Download
memory/1616-7-0x0000000000C40000-0x0000000000C57000-memory.dmp

Filesize
92KB

Download
memory/3296-8-0x0000000000D90000-0x0000000000DA7000-memory.dmp

Filesize
92KB

Download
memory/3296-31-0x0000000000D90000-0x0000000000DA7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads