15d2f35f57ac49761ecbeacff526bca044cf90d4ac64cdfcc4907e2ccfb69a66

Analysis

max time kernel
142s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
31/12/2023, 13:31

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General

Target

381e20e0aa57b975f06e729ee8283441.exe
Size

59KB
MD5

381e20e0aa57b975f06e729ee8283441
SHA1

a6dc3104b190757b9108030f9dc278393e7c81fa
SHA256

15d2f35f57ac49761ecbeacff526bca044cf90d4ac64cdfcc4907e2ccfb69a66
SHA512

c429c3c64a260bef9f0c37500232b5b105788436b3489a256a7a38224e71da47c2c0dae5ac6f947b3e5c448e8708ad672153e76ca05dc7ea48b472f27675aae3
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFGocAX3LKew369lp2z3K:SKcR4mjD9r823FHKcR4mjD9r823FP

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2232	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/2272-0-0x0000000000DF0000-0x0000000000E07000-memory.dmp	upx
behavioral1/files/0x000b0000000139f5-10.dat	upx
behavioral1/memory/2232-12-0x0000000001210000-0x0000000001227000-memory.dmp	upx
behavioral1/memory/2272-9-0x0000000000DF0000-0x0000000000E07000-memory.dmp	upx
behavioral1/memory/2272-6-0x0000000000070000-0x0000000000087000-memory.dmp	upx
behavioral1/files/0x000800000001227a-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"	381e20e0aa57b975f06e729ee8283441.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	381e20e0aa57b975f06e729ee8283441.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2272	381e20e0aa57b975f06e729ee8283441.exe
Token: SeDebugPrivilege	2232	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 2232	2272	381e20e0aa57b975f06e729ee8283441.exe	28
PID 2272 wrote to memory of 2232	2272	381e20e0aa57b975f06e729ee8283441.exe	28
PID 2272 wrote to memory of 2232	2272	381e20e0aa57b975f06e729ee8283441.exe	28
PID 2272 wrote to memory of 2232	2272	381e20e0aa57b975f06e729ee8283441.exe	28

C:\Users\Admin\AppData\Local\Temp\381e20e0aa57b975f06e729ee8283441.exe
"C:\Users\Admin\AppData\Local\Temp\381e20e0aa57b975f06e729ee8283441.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:2232

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\qOqezZV6YRhNIVV.exe

Filesize
59KB

MD5
fc085bc39b743d394f5c505ef78e1c58

SHA1
8dd01798d957b0ee348802dcdba20752bb2136f5

SHA256
4d08e95275a87871579364555cdbd0632b526ea05ccfb8cc0d02fb3ee6d0779f

SHA512
a7532ce4d86636731ccf9db7a96cd77267d5134083c50c64ff62b75279370751ee38b58b81ee4cb6234fa76c5d002798cd848264c6660b1668448948a835d314

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/2232-12-0x0000000001210000-0x0000000001227000-memory.dmp

Filesize
92KB

Download
memory/2272-0-0x0000000000DF0000-0x0000000000E07000-memory.dmp

Filesize
92KB

Download
memory/2272-9-0x0000000000DF0000-0x0000000000E07000-memory.dmp

Filesize
92KB

Download
memory/2272-6-0x0000000000070000-0x0000000000087000-memory.dmp

Filesize
92KB

Download
memory/2272-18-0x0000000000070000-0x0000000000087000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads