29ed16c7d94da8092d78d56e746400e0c19c32a959240d08588e42ebc5f1c831

Analysis

max time kernel
141s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
28-01-2024 21:38

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General

Target

7e11717d570174a38e9e82c39c772028.exe
Size

59KB
MD5

7e11717d570174a38e9e82c39c772028
SHA1

b29a5627ee02afa5098be6bc70bc28694b8bff4e
SHA256

29ed16c7d94da8092d78d56e746400e0c19c32a959240d08588e42ebc5f1c831
SHA512

0b32e7ade476429d6f2d9c10c8c034f816009fe2ef0aff940f4673cae8dd06140e261b319218a18c4f0b06ded6a8afbb1cfc7c0e3adfbff795f3dafa6e09be51
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFGocAX3LKew369lp2z3e:SKcR4mjD9r823FHKcR4mjD9r823FK0

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4876	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/2272-0-0x0000000000C60000-0x0000000000C77000-memory.dmp	upx
behavioral2/memory/4876-9-0x0000000000380000-0x0000000000397000-memory.dmp	upx
behavioral2/files/0x0006000000023238-8.dat	upx
behavioral2/memory/2272-7-0x0000000000C60000-0x0000000000C77000-memory.dmp	upx
behavioral2/files/0x000300000002276d-12.dat	upx
behavioral2/files/0x000d000000023180-30.dat	upx
behavioral2/memory/4876-33-0x0000000000380000-0x0000000000397000-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"	CTS.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	7e11717d570174a38e9e82c39c772028.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	7e11717d570174a38e9e82c39c772028.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2272	7e11717d570174a38e9e82c39c772028.exe
Token: SeDebugPrivilege	4876	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 4876	2272	7e11717d570174a38e9e82c39c772028.exe	85
PID 2272 wrote to memory of 4876	2272	7e11717d570174a38e9e82c39c772028.exe	85
PID 2272 wrote to memory of 4876	2272	7e11717d570174a38e9e82c39c772028.exe	85

C:\Users\Admin\AppData\Local\Temp\7e11717d570174a38e9e82c39c772028.exe
"C:\Users\Admin\AppData\Local\Temp\7e11717d570174a38e9e82c39c772028.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2272
- 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:4876

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
382KB

MD5
822804c8167ddb8b7aabef0fb2d5f429

SHA1
366847f6542efedd7b887e5870c754ce64eac34c

SHA256
14236f80568ed243701f008841356388e167816b829cde998d5a656b05cbe92b

SHA512
d98ba8de0283466e5dce3e5e2b71d946c15a2bd8a12a404b2dfd49f33d77ba3f352cebcbbbf7f52441f70612e2eddb29fdc03a64ea2f52499777acd27feeded6

Download Submit
C:\Users\Admin\AppData\Local\Temp\aH1H4iTj7J2AiZX.exe

Filesize
59KB

MD5
4c4f806c41ba014579e741be1a99d354

SHA1
3d808262b0a680200eb79ed86608e8334a461453

SHA256
e7340ff0e75ce296361a2c89cc1fede4781954e97ed74b4d8cd66936e6768c5d

SHA512
85fbb6813642bbd749c041eb37781d4c38639b00815377ee02dd426e3c609a50c91bbb2144dee668453c7931896bdb225b964b82431eb747ac1640c2247a3a2a

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/2272-0-0x0000000000C60000-0x0000000000C77000-memory.dmp

Filesize
92KB

Download
memory/2272-7-0x0000000000C60000-0x0000000000C77000-memory.dmp

Filesize
92KB

Download
memory/4876-9-0x0000000000380000-0x0000000000397000-memory.dmp

Filesize
92KB

Download
memory/4876-33-0x0000000000380000-0x0000000000397000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads