milleniumrat | e0338c845a876d585eceb084311e84f3becd6fa6f0851567ba2c5f00eeaf4ecf

Analysis

max time kernel
25s
max time network
27s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
06-06-2024 15:44

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General

Target

main.exe
Size

5.6MB
MD5

3d3c49dd5d13a242b436e0a065cd6837
SHA1

e38a773ffa08452c449ca5a880d89cfad24b6f1b
SHA256

e0338c845a876d585eceb084311e84f3becd6fa6f0851567ba2c5f00eeaf4ecf
SHA512

dd0e590310392b0543d47a2d24d55f6f091ba59acc0d7ea533039ffb48f1b8938587889bcfa19b0538a62ba26fcde2172253860ceab34af40fd7bf65b6587b00
SSDEEP

98304:nsl27OuKr+gvhf2U9Nzm31PMoslkqXf0FvUcwti78OqJ7TPBvc8X6UcR6s:nPOuK6mn9NzgMoYkSIvUcwti7TQlvciY

Score

10^/10

milleniumrat persistence rat spyware stealer

Malware Config

Signatures

MilleniumRat
MilleniumRat is a remote access trojan written in C#.
rat stealer milleniumrat

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	main.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	Update.exe

Executes dropped EXE 1 IoCs

pid	Process
1064	Update.exe

Loads dropped DLL 2 IoCs

pid	Process
416	main.exe
1064	Update.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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ChromeUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\GoogleChromeUpdateLog\\Update.exe"	reg.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
21	raw.githubusercontent.com
7	raw.githubusercontent.com
8	raw.githubusercontent.com

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
1	ip-api.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	Update.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Update.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1508	timeout.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
2772	tasklist.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
384	reg.exe

Suspicious behavior: EnumeratesProcesses 55 IoCs

pid	Process
416	main.exe
416	main.exe
416	main.exe
416	main.exe
416	main.exe
416	main.exe
416	main.exe
416	main.exe
416	main.exe
416	main.exe
416	main.exe
416	main.exe
416	main.exe
416	main.exe
416	main.exe
416	main.exe
416	main.exe
416	main.exe
416	main.exe
416	main.exe
416	main.exe
416	main.exe
416	main.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe
1064	Update.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	416	main.exe
Token: SeDebugPrivilege	2772	tasklist.exe
Token: SeDebugPrivilege	1064	Update.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1064	Update.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 416 wrote to memory of 4836	416	main.exe	90
PID 416 wrote to memory of 4836	416	main.exe	90
PID 4836 wrote to memory of 2772	4836	cmd.exe	92
PID 4836 wrote to memory of 2772	4836	cmd.exe	92
PID 4836 wrote to memory of 4504	4836	cmd.exe	93
PID 4836 wrote to memory of 4504	4836	cmd.exe	93
PID 4836 wrote to memory of 1508	4836	cmd.exe	94
PID 4836 wrote to memory of 1508	4836	cmd.exe	94
PID 4836 wrote to memory of 1064	4836	cmd.exe	96
PID 4836 wrote to memory of 1064	4836	cmd.exe	96
PID 1064 wrote to memory of 3088	1064	Update.exe	99
PID 1064 wrote to memory of 3088	1064	Update.exe	99
PID 3088 wrote to memory of 384	3088	cmd.exe	101
PID 3088 wrote to memory of 384	3088	cmd.exe	101

C:\Users\Admin\AppData\Local\Temp\main.exe
"C:\Users\Admin\AppData\Local\Temp\main.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:416
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp72DE.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp72DE.tmp.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4836
- - C:\Windows\system32\tasklist.exe
    Tasklist /fi "PID eq 416"
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:2772
- - C:\Windows\system32\find.exe
    find ":"
    3⤵
    PID:4504
- - C:\Windows\system32\timeout.exe
    Timeout /T 1 /Nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:1508
- - C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe
    "C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Loads dropped DLL
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1064
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v ChromeUpdate /t REG_SZ /d C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe /f
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3088
    - - C:\Windows\system32\reg.exe
        
        reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v ChromeUpdate /t REG_SZ /d C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe /f
        5⤵
        Adds Run key to start application
        Modifies registry key
        
        PID:384

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

Process Discovery

T1057

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Costura\A54E036D2DCD19384E8EA53862E0DD8F\64\sqlite.interop.dll

Filesize
1.7MB

MD5
65ccd6ecb99899083d43f7c24eb8f869

SHA1
27037a9470cc5ed177c0b6688495f3a51996a023

SHA256
aba67c7e6c01856838b8bc6b0ba95e864e1fdcb3750aa7cdc1bc73511cea6fe4

SHA512
533900861fe36cf78b614d6a7ce741ff1172b41cbd5644b4a9542e6ca42702e6fbfb12f0fbaae8f5992320870a15e90b4f7bf180705fc9839db433413860be6d

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp72DE.tmp.bat

Filesize
255B

MD5
ce7e8361d88f8e22f314690fd15d391a

SHA1
918a2ead5c0a88e0a319d8f6a59eba200118dbab

SHA256
c48759acfbb93a9675143e3afbe9bb1986e6a7fa57eae3134a688bcc4392ed59

SHA512
80645ffdc9eaa2a87ab0d15bf25dd2d43f41f2c3963db8587197ddeff181139205767cee201d9424f7db81ae85f4a8c321e440547f77c5932b70ebb9718daf84

Download Submit
C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe

Filesize
5.6MB

MD5
3d3c49dd5d13a242b436e0a065cd6837

SHA1
e38a773ffa08452c449ca5a880d89cfad24b6f1b

SHA256
e0338c845a876d585eceb084311e84f3becd6fa6f0851567ba2c5f00eeaf4ecf

SHA512
dd0e590310392b0543d47a2d24d55f6f091ba59acc0d7ea533039ffb48f1b8938587889bcfa19b0538a62ba26fcde2172253860ceab34af40fd7bf65b6587b00

Download Submit
memory/416-12-0x00007FFA87600000-0x00007FFA880C1000-memory.dmp

Filesize
10.8MB

Download
memory/416-7-0x00007FFA87600000-0x00007FFA880C1000-memory.dmp

Filesize
10.8MB

Download
memory/416-8-0x0000020FBF310000-0x0000020FBF32E000-memory.dmp

Filesize
120KB

Download
memory/416-0-0x00007FFA87603000-0x00007FFA87605000-memory.dmp

Filesize
8KB

Download
memory/416-6-0x0000020FD7B80000-0x0000020FD7BF6000-memory.dmp

Filesize
472KB

Download
memory/416-1-0x0000020FBD180000-0x0000020FBD720000-memory.dmp

Filesize
5.6MB

Download
memory/1064-19-0x000001B95DFB0000-0x000001B95DFBA000-memory.dmp

Filesize
40KB

Download
memory/1064-20-0x000001B95EBD0000-0x000001B95EC3A000-memory.dmp

Filesize
424KB

Download
memory/1064-23-0x000001B95EC80000-0x000001B95ECBA000-memory.dmp

Filesize
232KB

Download
memory/1064-24-0x000001B95EC40000-0x000001B95EC66000-memory.dmp

Filesize
152KB

Download
memory/1064-42-0x000001B95ED00000-0x000001B95ED12000-memory.dmp

Filesize
72KB

Download