3aef4d66a8d71047837510b404937748c9275a36c87ae7c32777c539d4c4479e

Analysis

max time kernel
140s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
15/03/2024, 11:26

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General

Target

cb48ef0cab40d3ba58aad515817743bf.exe
Size

59KB
MD5

cb48ef0cab40d3ba58aad515817743bf
SHA1

246bce029647ae11f576afc8184cec57f265545e
SHA256

3aef4d66a8d71047837510b404937748c9275a36c87ae7c32777c539d4c4479e
SHA512

8f74c9cb21df4e877674c67c1fcc79fb4cf54e6e6db7f028cba5b0dc2b3523d5ad229f91cd289e11736e74c0a9567ac3ac75ab8b8a9914190de91293d4aca99a
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFGocAX3LKew369lp2z3D:SKcR4mjD9r823FHKcR4mjD9r823FK

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3064	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
behavioral1/memory/1576-0-0x0000000000EC0000-0x0000000000ED7000-memory.dmp	upx
behavioral1/memory/1576-9-0x0000000000EC0000-0x0000000000ED7000-memory.dmp	upx
behavioral1/files/0x000a000000015c52-10.dat	upx
behavioral1/memory/3064-12-0x00000000009D0000-0x00000000009E7000-memory.dmp	upx
behavioral1/memory/1576-8-0x00000000000E0000-0x00000000000F7000-memory.dmp	upx
behavioral1/files/0x0009000000015b6f-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"	cb48ef0cab40d3ba58aad515817743bf.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	cb48ef0cab40d3ba58aad515817743bf.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1576	cb48ef0cab40d3ba58aad515817743bf.exe
Token: SeDebugPrivilege	3064	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1576 wrote to memory of 3064	1576	cb48ef0cab40d3ba58aad515817743bf.exe	28
PID 1576 wrote to memory of 3064	1576	cb48ef0cab40d3ba58aad515817743bf.exe	28
PID 1576 wrote to memory of 3064	1576	cb48ef0cab40d3ba58aad515817743bf.exe	28
PID 1576 wrote to memory of 3064	1576	cb48ef0cab40d3ba58aad515817743bf.exe	28

C:\Users\Admin\AppData\Local\Temp\cb48ef0cab40d3ba58aad515817743bf.exe
"C:\Users\Admin\AppData\Local\Temp\cb48ef0cab40d3ba58aad515817743bf.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1576
- 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:3064

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\GrV2M6zHbiB01tn.exe

Filesize
59KB

MD5
a3d2895d5686e827b99472822f324e9b

SHA1
c78b865269b79e90d080495ba37bfb9d1b8ce9e7

SHA256
7f95e5f61d3e8f210ca98aa4afc7f2d2d856133ea1a4edf6552eff96d3c190e3

SHA512
b65bb957a5f5538c1b5bc885c4170d03d8b53870b13cf7ddf536f4f31b454e3e12896ac568431894cfd478cef4e0d26c2d5620d26df69d1310c8e865e60a30f0

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/1576-0-0x0000000000EC0000-0x0000000000ED7000-memory.dmp

Filesize
92KB

Download
memory/1576-9-0x0000000000EC0000-0x0000000000ED7000-memory.dmp

Filesize
92KB

Download
memory/1576-8-0x00000000000E0000-0x00000000000F7000-memory.dmp

Filesize
92KB

Download
memory/3064-12-0x00000000009D0000-0x00000000009E7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads