milleniumrat | 304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d

Resubmissions

08-02-2024 14:25

240208-rrhfnaed7t 10

08-02-2024 14:20

240208-rnnhhaed4t 10

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
08-02-2024 14:25

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General

Target

304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
Size

5.7MB
MD5

4685cc14b573164de4fb91315a6411ce
SHA1

ef14eee56ac6aec9b7b0c6bb71a926cf75720cfd
SHA256

304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d
SHA512

850c5f86ca101ea63d005a04cba52336323c257d3bbc000e73cc6c5d115fb7da6372ccdcf265a76d8feb2322b412a320d031d9d66996ffcfed9d2c59b4e62686
SSDEEP

98304:3sl27OuKr+gvhf2U9Nzm31PMoslkqXf0FvUcwti78OqJ7TPBvc8X6UcR6T:3POuK6mn9NzgMoYkSIvUcwti7TQlvcin

Score

10^/10

milleniumrat persistence rat 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-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	Update.exe

Executes dropped EXE 1 IoCs

pid	Process
920	Update.exe

Loads dropped DLL 2 IoCs

pid	Process
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
920	Update.exe

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-1-5-21-1232405761-1209240240-3206092754-1000\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
12	raw.githubusercontent.com
13	raw.githubusercontent.com
27	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
3	ip-api.com

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
392	timeout.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
1460	tasklist.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
4684	reg.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe
920	Update.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
Token: SeDebugPrivilege	1460	tasklist.exe
Token: SeDebugPrivilege	920	Update.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
920	Update.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 60 wrote to memory of 3844	60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe	86
PID 60 wrote to memory of 3844	60	304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe	86
PID 3844 wrote to memory of 1460	3844	cmd.exe	88
PID 3844 wrote to memory of 1460	3844	cmd.exe	88
PID 3844 wrote to memory of 2240	3844	cmd.exe	89
PID 3844 wrote to memory of 2240	3844	cmd.exe	89
PID 3844 wrote to memory of 392	3844	cmd.exe	90
PID 3844 wrote to memory of 392	3844	cmd.exe	90
PID 3844 wrote to memory of 920	3844	cmd.exe	93
PID 3844 wrote to memory of 920	3844	cmd.exe	93
PID 920 wrote to memory of 2304	920	Update.exe	96
PID 920 wrote to memory of 2304	920	Update.exe	96
PID 2304 wrote to memory of 4684	2304	cmd.exe	98
PID 2304 wrote to memory of 4684	2304	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe
"C:\Users\Admin\AppData\Local\Temp\304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:60
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp54E6.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp54E6.tmp.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3844
- - C:\Windows\system32\tasklist.exe
    Tasklist /fi "PID eq 60"
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:1460
- - C:\Windows\system32\find.exe
    find ":"
    3⤵
    PID:2240
- - C:\Windows\system32\timeout.exe
    Timeout /T 1 /Nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:392
- - 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
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:920
  - - 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:2304
    - - 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:4684

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

Discovery

Process Discovery

T1057

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

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\tmp54E6.tmp.bat

Filesize
254B

MD5
551fc66107d275339f163d2735b4b9e5

SHA1
e4b625a3972313e1e422624e954a5bdba8ef8e2d

SHA256
8a1b52c8150ad8fd6f9293eb1c77192c726ce2e917be0d168ba06a2dd177fe61

SHA512
f387f5e56d34ad37ae85991a7ea3cc9ad8f98d7b497774f1cf79a54d9fa92c1eae806ae84c6ff96d8b46bc1e2bf3135241b9a9211f932e2bf22b5d14c5bd8139

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

Filesize
5.7MB

MD5
4685cc14b573164de4fb91315a6411ce

SHA1
ef14eee56ac6aec9b7b0c6bb71a926cf75720cfd

SHA256
304ef66a063c8d7f349e1ccae332c3d0671e39923bdc6be1dd8e788255f9575d

SHA512
850c5f86ca101ea63d005a04cba52336323c257d3bbc000e73cc6c5d115fb7da6372ccdcf265a76d8feb2322b412a320d031d9d66996ffcfed9d2c59b4e62686

Download Submit
memory/60-12-0x00007FFE59E90000-0x00007FFE5A951000-memory.dmp

Filesize
10.8MB

Download
memory/60-7-0x00000231A2540000-0x00000231A2550000-memory.dmp

Filesize
64KB

Download
memory/60-8-0x00000231A24F0000-0x00000231A250E000-memory.dmp

Filesize
120KB

Download
memory/60-0-0x00000231A0250000-0x00000231A0800000-memory.dmp

Filesize
5.7MB

Download
memory/60-6-0x00000231A25D0000-0x00000231A2646000-memory.dmp

Filesize
472KB

Download
memory/60-1-0x00007FFE59E90000-0x00007FFE5A951000-memory.dmp

Filesize
10.8MB

Download
memory/920-17-0x00007FFE59E90000-0x00007FFE5A951000-memory.dmp

Filesize
10.8MB

Download
memory/920-20-0x000001E7B87C0000-0x000001E7B87D0000-memory.dmp

Filesize
64KB

Download
memory/920-21-0x00007FFE59E90000-0x00007FFE5A951000-memory.dmp

Filesize
10.8MB

Download
memory/920-22-0x000001E7B87C0000-0x000001E7B87D0000-memory.dmp

Filesize
64KB

Download