d5335a20f6f14699f87bdfb9efe249872eb31d44573425582fe212c8261c110a

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15/03/2024, 12:51

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General

Target

cb74aa41abfb3d30938d3c3ee18341e6.exe
Size

35KB
MD5

cb74aa41abfb3d30938d3c3ee18341e6
SHA1

c188ebc2088b8247c297c792341018e0976a0a23
SHA256

d5335a20f6f14699f87bdfb9efe249872eb31d44573425582fe212c8261c110a
SHA512

b30d0d746043d46d02cd950a4946a8eb7f4c2118293419528fa6daa037f5789f6228695ecd44fa25ee2ba5af1efea6fe706108696e0aeade9e7de29ae9723b4b
SSDEEP

768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+I/:s9Z3KcR4mjD9r8226+m

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2808	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
behavioral2/memory/3624-0-0x0000000000680000-0x0000000000697000-memory.dmp	upx
behavioral2/memory/3624-7-0x0000000000680000-0x0000000000697000-memory.dmp	upx
behavioral2/files/0x000a000000023187-8.dat	upx
behavioral2/memory/2808-9-0x0000000000B80000-0x0000000000B97000-memory.dmp	upx
behavioral2/files/0x0003000000022744-12.dat	upx
behavioral2/files/0x000c00000002312e-30.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"	cb74aa41abfb3d30938d3c3ee18341e6.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	cb74aa41abfb3d30938d3c3ee18341e6.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3624	cb74aa41abfb3d30938d3c3ee18341e6.exe
Token: SeDebugPrivilege	2808	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3624 wrote to memory of 2808	3624	cb74aa41abfb3d30938d3c3ee18341e6.exe	90
PID 3624 wrote to memory of 2808	3624	cb74aa41abfb3d30938d3c3ee18341e6.exe	90
PID 3624 wrote to memory of 2808	3624	cb74aa41abfb3d30938d3c3ee18341e6.exe	90

C:\Users\Admin\AppData\Local\Temp\cb74aa41abfb3d30938d3c3ee18341e6.exe
"C:\Users\Admin\AppData\Local\Temp\cb74aa41abfb3d30938d3c3ee18341e6.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3624
- 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:2808

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
357KB

MD5
b6fdadac5b63ebaf03ee24fefd10a827

SHA1
8de5b0ce61aadb1c7a226a405069ca5c944dd0a8

SHA256
8eac021712e1e76165d8a59777b8fe77da0a12963f7a2a490898446e83b62128

SHA512
25b88322e16185c9120e741082b1ca63f09762ae54d6693aacc0b7f0f7435f8f768470c5f9a9cb58e706ef01489228ece61d736216b1ed87fc229e026850018d

Download Submit
C:\Users\Admin\AppData\Local\Temp\n4Tz6C0ZCFOMp2z.exe

Filesize
35KB

MD5
d21c4b74e8545a892e0667d601ba7ad4

SHA1
8aab85d5e57e1a8d4a041510b3a90b366ba45790

SHA256
e652baf7b3f3cc037cea2d2b91a7ee81de64e7da30b2e4d0effdfb7ee72a27da

SHA512
f9580112b9ddc9ab84ee880ad671d421dfef5ed7c6e16ec225bd180e55d7693ab8612e4a6fc87a7e6a3ecd64ca34911d6be7414194b3d5c3da543ec8c0610151

Download Submit
C:\Windows\CTS.exe

Filesize
35KB

MD5
93e5f18caebd8d4a2c893e40e5f38232

SHA1
fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

SHA256
a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

SHA512
986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

Download Submit
memory/2808-9-0x0000000000B80000-0x0000000000B97000-memory.dmp

Filesize
92KB

Download
memory/3624-0-0x0000000000680000-0x0000000000697000-memory.dmp

Filesize
92KB

Download
memory/3624-7-0x0000000000680000-0x0000000000697000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads