6f8414d94f2da17d4ca602f2af65b8634169e2edc3afbb5849bf395f715af00f

Analysis

max time kernel
147s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2024 05:42

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General

Target

400acaacfe51458118a9e147189d3078.exe
Size

123KB
MD5

400acaacfe51458118a9e147189d3078
SHA1

e821c0659887ee001130e37b1fb8c1a1b3c3bf70
SHA256

6f8414d94f2da17d4ca602f2af65b8634169e2edc3afbb5849bf395f715af00f
SHA512

3fba10a82b95c95b81e2e5cae57677a31a238b228bdb0cbb7e0c2b3dcdbac430671b3797e079d52d5ea0beef7bde702fc93240569a1340417f3ef97920fe996c
SSDEEP

3072:SKcWmjRrz3ZKcWmjRrz3PNAKIOXtGQqiIzWNsHkAyxY9u:hGyGlAKR9GhimByN

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2096	etjT4cXSzWYJvFz.exe
4068	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
behavioral2/memory/3460-0-0x0000000000C30000-0x0000000000C47000-memory.dmp	upx
behavioral2/files/0x000d00000002315f-8.dat	upx
behavioral2/memory/3460-9-0x0000000000C30000-0x0000000000C47000-memory.dmp	upx
behavioral2/files/0x000300000002276d-13.dat	upx
behavioral2/memory/4068-7-0x0000000000940000-0x0000000000957000-memory.dmp	upx
behavioral2/memory/4068-32-0x0000000000940000-0x0000000000957000-memory.dmp	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"	400acaacfe51458118a9e147189d3078.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	400acaacfe51458118a9e147189d3078.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3460	400acaacfe51458118a9e147189d3078.exe
Token: SeDebugPrivilege	4068	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3460 wrote to memory of 2096	3460	400acaacfe51458118a9e147189d3078.exe	93
PID 3460 wrote to memory of 2096	3460	400acaacfe51458118a9e147189d3078.exe	93
PID 3460 wrote to memory of 2096	3460	400acaacfe51458118a9e147189d3078.exe	93
PID 3460 wrote to memory of 4068	3460	400acaacfe51458118a9e147189d3078.exe	90
PID 3460 wrote to memory of 4068	3460	400acaacfe51458118a9e147189d3078.exe	90
PID 3460 wrote to memory of 4068	3460	400acaacfe51458118a9e147189d3078.exe	90

C:\Users\Admin\AppData\Local\Temp\400acaacfe51458118a9e147189d3078.exe
"C:\Users\Admin\AppData\Local\Temp\400acaacfe51458118a9e147189d3078.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3460
- 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:4068
- C:\Users\Admin\AppData\Local\Temp\etjT4cXSzWYJvFz.exe
  C:\Users\Admin\AppData\Local\Temp\etjT4cXSzWYJvFz.exe
  2⤵
  - Executes dropped EXE
  PID:2096

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
5f9d40d0638f32d55149fd9ec587f202

SHA1
ebeaeb102e768e1557d735d7077b8c9f8277775c

SHA256
710897b7bf1ed25ed3217300901069524958daae5590273a1c0defc3917168f7

SHA512
befe3bee5053582ae375bc323d7a6703e33e11d48c9c15ab6191563e6b18766bfad6b089b79a8b8dd11a2021ca9ee70e92a69da76957c364ea7d80e0b2d8f799

Download Submit
C:\Users\Admin\AppData\Local\Temp\etjT4cXSzWYJvFz.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/3460-0-0x0000000000C30000-0x0000000000C47000-memory.dmp

Filesize
92KB

Download
memory/3460-9-0x0000000000C30000-0x0000000000C47000-memory.dmp

Filesize
92KB

Download
memory/4068-7-0x0000000000940000-0x0000000000957000-memory.dmp

Filesize
92KB

Download
memory/4068-32-0x0000000000940000-0x0000000000957000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads