eb525082ad4eb37a11a71d99aadac3a333fee904023ba9cd5d058d5081e7d125

Analysis

max time kernel
140s
max time network
122s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
18/03/2024, 17:59

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General

Target

d4276073470b5b434e974f50387d5704.exe
Size

59KB
MD5

d4276073470b5b434e974f50387d5704
SHA1

2fb84857ca69c9c242fc51c51f41883b9133d7aa
SHA256

eb525082ad4eb37a11a71d99aadac3a333fee904023ba9cd5d058d5081e7d125
SHA512

779775bcb26ac21ba7fa29bb9e0374d0e7f410f95c4f09b32e86e1784a680aac6667887b6437f74729f863fb8fcc81c1708e11fb48d5f6179ffe82646c636a0f
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFGocAX3LKew369lp2z3l:SKcR4mjD9r823FHKcR4mjD9r823FgJ

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2312	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
behavioral1/memory/1728-0-0x00000000001F0000-0x0000000000207000-memory.dmp	upx
behavioral1/files/0x000b000000014323-7.dat	upx
behavioral1/memory/2312-12-0x0000000000A60000-0x0000000000A77000-memory.dmp	upx
behavioral1/memory/1728-8-0x00000000001F0000-0x0000000000207000-memory.dmp	upx
behavioral1/files/0x000a000000012252-14.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"	d4276073470b5b434e974f50387d5704.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	d4276073470b5b434e974f50387d5704.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1728	d4276073470b5b434e974f50387d5704.exe
Token: SeDebugPrivilege	2312	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 2312	1728	d4276073470b5b434e974f50387d5704.exe	28
PID 1728 wrote to memory of 2312	1728	d4276073470b5b434e974f50387d5704.exe	28
PID 1728 wrote to memory of 2312	1728	d4276073470b5b434e974f50387d5704.exe	28
PID 1728 wrote to memory of 2312	1728	d4276073470b5b434e974f50387d5704.exe	28

C:\Users\Admin\AppData\Local\Temp\d4276073470b5b434e974f50387d5704.exe
"C:\Users\Admin\AppData\Local\Temp\d4276073470b5b434e974f50387d5704.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1728
- 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:2312

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\Temp\Bcf6oDuMqVDBFww.exe

Filesize
59KB

MD5
9efcd3c767abda4dadcf60cf8e48a47a

SHA1
3a358fc09aa7df64d43bd7f347f5011483547cba

SHA256
a7ab268efaa89cbce9a689279e53c35744fb29ccd070cf3528b72036e59bad07

SHA512
50a054a8616f97ae6d570ba58b8282d5d96d627aa3b6a20e11f2cb6b3b2c3b74a45cd774380ad2ed81244d5af83ce44e44d76179b4479ba420e44464c1f17fd7

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/1728-0-0x00000000001F0000-0x0000000000207000-memory.dmp

Filesize
92KB

Download
memory/1728-9-0x0000000000070000-0x0000000000087000-memory.dmp

Filesize
92KB

Download
memory/1728-8-0x00000000001F0000-0x0000000000207000-memory.dmp

Filesize
92KB

Download
memory/1728-19-0x0000000000070000-0x0000000000087000-memory.dmp

Filesize
92KB

Download
memory/2312-12-0x0000000000A60000-0x0000000000A77000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads