4109262ae0fc39424e57cc6eb837db2c4c4e17e32ab4554f7ee43f35262d5b52

Analysis

max time kernel
146s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30/12/2023, 00:55

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General

Target

0938b53cbd901f8218bcd01116312f8a.exe
Size

42KB
MD5

0938b53cbd901f8218bcd01116312f8a
SHA1

8feb5285db9078d12456f604d6c1b1f44b99f8c9
SHA256

4109262ae0fc39424e57cc6eb837db2c4c4e17e32ab4554f7ee43f35262d5b52
SHA512

ae4e348ed72dde2e98fd3404d59d9ac4b2fb49d7a5b5855d9946bd1932372f788b915b520b85021313ec159bb19fd897ba7575a901012a2cad5e9f07dade0bda
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFHnqoJF4h9949XJqfyD:SKcR4mjD9r823FHqc2hu+yD

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2588	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 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4012-0-0x0000000000300000-0x0000000000317000-memory.dmp	upx
behavioral2/memory/4012-3-0x0000000000300000-0x0000000000317000-memory.dmp	upx
behavioral2/files/0x000600000002323f-8.dat	upx
behavioral2/memory/2588-10-0x00000000003C0000-0x00000000003D7000-memory.dmp	upx
behavioral2/memory/4012-11-0x0000000000300000-0x0000000000317000-memory.dmp	upx
behavioral2/files/0x000500000002270a-14.dat	upx
behavioral2/memory/2588-28-0x00000000003C0000-0x00000000003D7000-memory.dmp	upx
behavioral2/files/0x000600000001e71b-32.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"	0938b53cbd901f8218bcd01116312f8a.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	0938b53cbd901f8218bcd01116312f8a.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4012	0938b53cbd901f8218bcd01116312f8a.exe
Token: SeDebugPrivilege	2588	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4012 wrote to memory of 2588	4012	0938b53cbd901f8218bcd01116312f8a.exe	90
PID 4012 wrote to memory of 2588	4012	0938b53cbd901f8218bcd01116312f8a.exe	90
PID 4012 wrote to memory of 2588	4012	0938b53cbd901f8218bcd01116312f8a.exe	90

C:\Users\Admin\AppData\Local\Temp\0938b53cbd901f8218bcd01116312f8a.exe
"C:\Users\Admin\AppData\Local\Temp\0938b53cbd901f8218bcd01116312f8a.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4012
- 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:2588

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
58cf0c78de5b4db8d7605b0258e9ef7e

SHA1
3f80d7fc66968b12ad8b979e5e52b55aa8fc4f88

SHA256
25f653eec1a4d704a75fb8d77e64cf69f883bc1c7f0f78a947ce4b294be7c7b4

SHA512
b5cc138ae8fd8276847133d70012b1b23e746221ba09791cebb3e2c55d214bd23f7bafd50dbcaa603657278ea9acaf3163ec7e0f587552c8124935183b3e5e8f

Download Submit
C:\Users\Admin\AppData\Local\Temp\LXX1yY4fvJDEgzK.exe

Filesize
42KB

MD5
b0c77e4a71f8a4d9f4933b05d5dfdd6d

SHA1
d4f0dce4fa74e414960774aea9568d01d0b0d2cd

SHA256
449e67d6e9c61321062b1b8fb85aaa58e5f519a7caa5d74aa6391d187b99dcf6

SHA512
eee00ba9f9911e9bf1a4bb169a26efe30187996ff9fffacaea16d35f314de0e5c76588c97f99e154827a0672c21f79c8e93372b8e4a95eb790c353a1a2bb7572

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/2588-10-0x00000000003C0000-0x00000000003D7000-memory.dmp

Filesize
92KB

Download
memory/2588-28-0x00000000003C0000-0x00000000003D7000-memory.dmp

Filesize
92KB

Download
memory/4012-0-0x0000000000300000-0x0000000000317000-memory.dmp

Filesize
92KB

Download
memory/4012-3-0x0000000000300000-0x0000000000317000-memory.dmp

Filesize
92KB

Download
memory/4012-11-0x0000000000300000-0x0000000000317000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads