0fdefbccd79556a51e0a43e54f53dd506a08182f889a58d4391a59f6aced4895

Analysis

max time kernel
178s
max time network
189s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 00:11

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General

Target

2133f316e03acc5ebc678a525c9f2bdd.exe
Size

261KB
MD5

2133f316e03acc5ebc678a525c9f2bdd
SHA1

be43949a939dadfa663072793dad2a78e9ab012d
SHA256

0fdefbccd79556a51e0a43e54f53dd506a08182f889a58d4391a59f6aced4895
SHA512

d48ddd5328f3f683c29e98284d09cbfac7e3df44f63f5f9be2552e343b0126d1561450b1baa819bed79ead7352fc41513f5daa032b9ca63aff754f009463287f
SSDEEP

6144:hGy1ia1ABJAKJQF0cH+gyUkj3kmQAb4grSRx7vcTHw/yN:h71TYJeF02yRj33bFGTviHw/yN

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1684	5avcB0wYHqsxII5.exe
5052	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 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2588-0-0x0000000000B60000-0x0000000000B77000-memory.dmp	upx
behavioral2/files/0x0006000000023220-6.dat	upx
behavioral2/memory/2588-8-0x0000000000B60000-0x0000000000B77000-memory.dmp	upx
behavioral2/memory/5052-9-0x00000000007C0000-0x00000000007D7000-memory.dmp	upx
behavioral2/files/0x00020000000227a5-13.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"	2133f316e03acc5ebc678a525c9f2bdd.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	2133f316e03acc5ebc678a525c9f2bdd.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2588	2133f316e03acc5ebc678a525c9f2bdd.exe
Token: SeDebugPrivilege	5052	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2588 wrote to memory of 1684	2588	2133f316e03acc5ebc678a525c9f2bdd.exe	90
PID 2588 wrote to memory of 1684	2588	2133f316e03acc5ebc678a525c9f2bdd.exe	90
PID 2588 wrote to memory of 1684	2588	2133f316e03acc5ebc678a525c9f2bdd.exe	90
PID 2588 wrote to memory of 5052	2588	2133f316e03acc5ebc678a525c9f2bdd.exe	91
PID 2588 wrote to memory of 5052	2588	2133f316e03acc5ebc678a525c9f2bdd.exe	91
PID 2588 wrote to memory of 5052	2588	2133f316e03acc5ebc678a525c9f2bdd.exe	91

C:\Users\Admin\AppData\Local\Temp\2133f316e03acc5ebc678a525c9f2bdd.exe
"C:\Users\Admin\AppData\Local\Temp\2133f316e03acc5ebc678a525c9f2bdd.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2588
- C:\Users\Admin\AppData\Local\Temp\5avcB0wYHqsxII5.exe
  C:\Users\Admin\AppData\Local\Temp\5avcB0wYHqsxII5.exe
  2⤵
  - Executes dropped EXE
  PID:1684
- 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:5052

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
352KB

MD5
2b421a981cfc87d3ad77f768e0a516b1

SHA1
c4b7e0b5f424aa6dd0f87d9c9a78893b6a6d22c1

SHA256
8a0a615a4f941e0f574bd3c7c28410c578b0807a3f8603b340f27433d2973c22

SHA512
c5e152c61a4dbd41aa5a2dde0b34d4c1da8c9d854b1d91f009c23e4d1234d74b3788da17ec7d8e1c246bf4baf8bd6b057c6f6b9a8a363fc9be9be652e6f76662

Download Submit
C:\Users\Admin\AppData\Local\Temp\5avcB0wYHqsxII5.exe

Filesize
231KB

MD5
004adb1bc74734087fa70e213a8318c1

SHA1
e824f25da72c7047a4b36f73f133d747b196447e

SHA256
31313e33f3a1832977e22f4a42d1f34273bd19daa5699b830e1b8c73fc979b65

SHA512
c39f7959463faf05db8e5f75a2596eb654e204e06c9fe158ae0dddc58a9d10aa94781b6120eb1bd3bd178d3bc0e0ae4bdd1aaf68565cdcb2b3aac10a5832d5c5

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/2588-0-0x0000000000B60000-0x0000000000B77000-memory.dmp

Filesize
92KB

Download
memory/2588-8-0x0000000000B60000-0x0000000000B77000-memory.dmp

Filesize
92KB

Download
memory/5052-9-0x00000000007C0000-0x00000000007D7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads