5cb11dbb235ae708dc7ff012f5d8eb8e592494b5a0a645645ebbd7412db736ca

Analysis

max time kernel
141s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
08-03-2024 14:12

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General

Target

bb76f55af1c6d21cb61b595bc0650ea8.exe
Size

363KB
MD5

bb76f55af1c6d21cb61b595bc0650ea8
SHA1

2e56c79cb7224a20ce2a4aa48f0cb0edeee3c8d4
SHA256

5cb11dbb235ae708dc7ff012f5d8eb8e592494b5a0a645645ebbd7412db736ca
SHA512

b2087b4432be36ada19d9da4a02a1cbad2058f2de0b33362f53b100ca1de3fd0d59b87d485090bc012f4dd52e795b8002321b870ae3e540c3c5dd1b81c6efee8
SSDEEP

6144:hGKI8HsXg10K4XiuE356k9Nb2FmZW2X2+W9YIupNE7H+vX0pTNFWKDpL2Js9u9OX:hjMST4yuEYFIZWcUhuXkxNoKNixOX

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3040	P85r3zOBQ83jp3S.exe
4280	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/4520-0-0x0000000000830000-0x0000000000847000-memory.dmp	upx
behavioral2/files/0x0008000000023225-7.dat	upx
behavioral2/memory/4280-9-0x0000000000BE0000-0x0000000000BF7000-memory.dmp	upx
behavioral2/memory/4520-8-0x0000000000830000-0x0000000000847000-memory.dmp	upx
behavioral2/files/0x0004000000022758-12.dat	upx
behavioral2/files/0x000c000000023170-30.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"	bb76f55af1c6d21cb61b595bc0650ea8.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	bb76f55af1c6d21cb61b595bc0650ea8.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4520	bb76f55af1c6d21cb61b595bc0650ea8.exe
Token: SeDebugPrivilege	4280	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4520 wrote to memory of 4280	4520	bb76f55af1c6d21cb61b595bc0650ea8.exe	86
PID 4520 wrote to memory of 4280	4520	bb76f55af1c6d21cb61b595bc0650ea8.exe	86
PID 4520 wrote to memory of 4280	4520	bb76f55af1c6d21cb61b595bc0650ea8.exe	86

C:\Users\Admin\AppData\Local\Temp\bb76f55af1c6d21cb61b595bc0650ea8.exe
"C:\Users\Admin\AppData\Local\Temp\bb76f55af1c6d21cb61b595bc0650ea8.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4520
- C:\Users\Admin\AppData\Local\Temp\P85r3zOBQ83jp3S.exe
  C:\Users\Admin\AppData\Local\Temp\P85r3zOBQ83jp3S.exe
  2⤵
  - Executes dropped EXE
  PID:3040
- 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:4280

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
352KB

MD5
00ec082134885881a7d35f2717975887

SHA1
925ba1a426aef3d88bd3b0603d9316777537bff4

SHA256
559e956f4c276dc35f418d03bec874b6e8d29f3d6a911a51c0acf3afc8a2f35a

SHA512
95e270831accb5a2272ffd6accf38e41c8ea8fa55b841e6e83cf27c8b6608c12b6c2091dec99e525f4d2a5f52d7964ed66c67818bf2ec59e17e80800498a05dc

Download Submit
C:\Users\Admin\AppData\Local\Temp\P85r3zOBQ83jp3S.exe

Filesize
334KB

MD5
f310d4e936b68a5d76b7b808507e99f9

SHA1
6dccf493508f97212688413bec28f86befbff8e2

SHA256
58b7e175725ddf68a7a6c891889daaa3b7d4f90c14bfcff287cb3336cbd7da60

SHA512
daead56dfdd7b4a7a8fabdc6e12144273aae244aa90817d76281e5a7414e3f07ca2761f481bda91a47fc3c1c911ff1783e7421e566e3b3fc59b443de141d9e5d

Download Submit
C:\Users\Admin\AppData\Local\Temp\P85r3zOBQ83jp3S.exe

Filesize
363KB

MD5
50183b1afaf670b399d6b96cfcdbd1bb

SHA1
712c6bf649d82bc846760acfa204f7d5fc41354c

SHA256
37a5c5c186e19a64edb1cce87f0b01fd1f52b97407ac7964b6178a56de990a05

SHA512
6612a7cad2d9531abb48c9dc750eb9be492dd0f24d22c3ed8343d2557713573f773725e1cdcb2cf3db974f7d4597f140eaaff3a7a28315889cdcf3f2f4a667e3

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/4280-9-0x0000000000BE0000-0x0000000000BF7000-memory.dmp

Filesize
92KB

Download
memory/4520-0-0x0000000000830000-0x0000000000847000-memory.dmp

Filesize
92KB

Download
memory/4520-8-0x0000000000830000-0x0000000000847000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads