74c71e3021d6bc23a08cc8019b8bfc648d83e164edb4aafb63dd2b88168a0f43

Analysis

max time kernel
172s
max time network
187s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
10-01-2024 16:43

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General

Target

5115238a76ae23232fa810ad55091309.exe
Size

123KB
MD5

5115238a76ae23232fa810ad55091309
SHA1

bd76b05f881e3f6f4033db9125d38fc05083521a
SHA256

74c71e3021d6bc23a08cc8019b8bfc648d83e164edb4aafb63dd2b88168a0f43
SHA512

0c2f3c31535f8e1ab52ccfefcb80ac851c3e847dd378b0728d6fee97bd1ae9552012bf626c639e4588b844419f3e0dc22d417a652219d86adeed061559a3e478
SSDEEP

3072:SKcWmjRrz3ZKcWmjRrz36LZ7YCKnF8VDfq3mCqUT:hGyG4UOVDfq3mCr

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2004	72d0brGSsAP44km.exe
1920	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
behavioral2/memory/4464-0-0x0000000000EF0000-0x0000000000F07000-memory.dmp	upx
behavioral2/memory/4464-6-0x0000000000EF0000-0x0000000000F07000-memory.dmp	upx
behavioral2/memory/1920-9-0x0000000000280000-0x0000000000297000-memory.dmp	upx
behavioral2/files/0x000700000002321b-8.dat	upx
behavioral2/files/0x000300000001e713-13.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"	5115238a76ae23232fa810ad55091309.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	5115238a76ae23232fa810ad55091309.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4464	5115238a76ae23232fa810ad55091309.exe
Token: SeDebugPrivilege	1920	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4464 wrote to memory of 2004	4464	5115238a76ae23232fa810ad55091309.exe	86
PID 4464 wrote to memory of 2004	4464	5115238a76ae23232fa810ad55091309.exe	86
PID 4464 wrote to memory of 2004	4464	5115238a76ae23232fa810ad55091309.exe	86
PID 4464 wrote to memory of 1920	4464	5115238a76ae23232fa810ad55091309.exe	88
PID 4464 wrote to memory of 1920	4464	5115238a76ae23232fa810ad55091309.exe	88
PID 4464 wrote to memory of 1920	4464	5115238a76ae23232fa810ad55091309.exe	88

C:\Users\Admin\AppData\Local\Temp\5115238a76ae23232fa810ad55091309.exe
"C:\Users\Admin\AppData\Local\Temp\5115238a76ae23232fa810ad55091309.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4464
- C:\Users\Admin\AppData\Local\Temp\72d0brGSsAP44km.exe
  C:\Users\Admin\AppData\Local\Temp\72d0brGSsAP44km.exe
  2⤵
  - Executes dropped EXE
  PID:2004
- 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:1920

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
b8a9a6421a7abd4b2328aa7c0b064cfc

SHA1
4fd7ad6d09df5382f5cabd11f2e0589aed4dc18e

SHA256
3778c97aa40beacf46817d0f2574b22b12dcb30da08d4f00e914d5742d1330ee

SHA512
b139ab0ad577fc6795aed9a28d0dff0f8756a615c7800411ce0429e9300d93f80a68b4f486d1aafb9ad46bf83711f41b2179249f5781f2fb4ed12c0c665c938f

Download Submit
C:\Users\Admin\AppData\Local\Temp\72d0brGSsAP44km.exe

Filesize
64KB

MD5
a32a382b8a5a906e03a83b4f3e5b7a9b

SHA1
11e2bdd0798761f93cce363329996af6c17ed796

SHA256
75f12ea2f30d9c0d872dade345f30f562e6d93847b6a509ba53beec6d0b2c346

SHA512
ec87dd957be21b135212454646dcabdd7ef9442cf714e2c1f6b42b81f0c3fa3b1875bde9a8b538e8a0aa2190225649c29e9ed0f25176e7659e55e422dd4efe4c

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/1920-9-0x0000000000280000-0x0000000000297000-memory.dmp

Filesize
92KB

Download
memory/4464-0-0x0000000000EF0000-0x0000000000F07000-memory.dmp

Filesize
92KB

Download
memory/4464-6-0x0000000000EF0000-0x0000000000F07000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads