milleniumrat | 11e21fbd77f65c83f97c0c2b38c8cd394d5c96fe780188e5c94d400346b49798 | Triage

Resubmissions

01/03/2024, 15:41

240301-s46jpahe82 10

20/02/2024, 02:32

240220-c1ct7sab38 10

Analysis

max time kernel
42s
max time network
36s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
01/03/2024, 15:41

Sharing

Report Analysis Logs

General

Target

db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
Size

5.6MB
MD5

731812403191b60503e017d88e23b1a3
SHA1

67e1c24ded75620181916dea9654eeddf4049525
SHA256

db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2
SHA512

1ae78e7d5e134d56ebbe9ec3e71bd7529aedbe5670a93b7728eca0aa482ac6688187884c5a61c2c8ef308acda555152d4d5cd2938d1cfa57303a8649803f01d5
SSDEEP

98304:nsl27OuKr+gvhf2U9Nzm31PMoslkqXf0FvUcwti78OqJ7TPBvc8X6UcR6m:nPOuK6mn9NzgMoYkSIvUcwti7TQlvciK

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

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
Key value queried	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	Update.exe

Executes dropped EXE 1 IoCs

pid	Process
1056	Update.exe

Loads dropped DLL 2 IoCs

pid	Process
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
1056	Update.exe

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\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

flow	ioc
17	raw.githubusercontent.com
36	raw.githubusercontent.com
14	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
5	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

pid	Process
1100	timeout.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

pid	Process
3648	tasklist.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

pid	Process
1636	reg.exe

Suspicious behavior: EnumeratesProcesses 44 IoCs

pid	Process
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
1056	Update.exe
1056	Update.exe
1056	Update.exe
1056	Update.exe
1056	Update.exe
1056	Update.exe
1056	Update.exe
1056	Update.exe
1056	Update.exe
1056	Update.exe
1056	Update.exe
1056	Update.exe
1056	Update.exe
1056	Update.exe
1056	Update.exe
1056	Update.exe
1056	Update.exe
1056	Update.exe
1056	Update.exe
1056	Update.exe
1056	Update.exe
1056	Update.exe
1056	Update.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
Token: SeDebugPrivilege	3648	tasklist.exe
Token: SeDebugPrivilege	1056	Update.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1056	Update.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3492 wrote to memory of 2532	3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe	92
PID 3492 wrote to memory of 2532	3492	db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe	92
PID 2532 wrote to memory of 3648	2532	cmd.exe	94
PID 2532 wrote to memory of 3648	2532	cmd.exe	94
PID 2532 wrote to memory of 4628	2532	cmd.exe	95
PID 2532 wrote to memory of 4628	2532	cmd.exe	95
PID 2532 wrote to memory of 1100	2532	cmd.exe	96
PID 2532 wrote to memory of 1100	2532	cmd.exe	96
PID 2532 wrote to memory of 1056	2532	cmd.exe	97
PID 2532 wrote to memory of 1056	2532	cmd.exe	97
PID 1056 wrote to memory of 2024	1056	Update.exe	98
PID 1056 wrote to memory of 2024	1056	Update.exe	98
PID 2024 wrote to memory of 1636	2024	cmd.exe	100
PID 2024 wrote to memory of 1636	2024	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
"C:\Users\Admin\AppData\Local\Temp\db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3492
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp5757.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp5757.tmp.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2532
- - C:\Windows\system32\tasklist.exe
    Tasklist /fi "PID eq 3492"
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:3648
- - C:\Windows\system32\find.exe
    find ":"
    3⤵
    PID:4628
- - C:\Windows\system32\timeout.exe
    Timeout /T 1 /Nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:1100
- - 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:1056
  - - 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:2024
    - - 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:1636

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Defense Evasion

Modify Registry

Credential Access

Discovery

Process Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Command and Control

Web Service

Exfiltration

Impact

Replay Monitor

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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\tmp5757.tmp.bat

Filesize
256B

MD5
841d3c6730065dccef5c56e09419781f

SHA1
ed4170eed37c8f70e38877ad440887d83f0d3168

SHA256
ab431c14fc1d077217a8795a80ea9c3f21aaf3ed0e53aaad37b3910443b00cd8

SHA512
14684650c57bc2cb2765844a1f22beaa2ad0843afc790e17932a26692b0710d1833cadb0f26934b64d4aceeb87bcd89727becc59c4c44e9f97db2fd2e19983fa

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

Filesize
5.6MB

MD5
731812403191b60503e017d88e23b1a3

SHA1
67e1c24ded75620181916dea9654eeddf4049525

SHA256
db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2

SHA512
1ae78e7d5e134d56ebbe9ec3e71bd7529aedbe5670a93b7728eca0aa482ac6688187884c5a61c2c8ef308acda555152d4d5cd2938d1cfa57303a8649803f01d5

Download Submit
memory/1056-17-0x00007FFBA2D40000-0x00007FFBA3801000-memory.dmp

Filesize
10.8MB

Download
memory/1056-20-0x000001FD48550000-0x000001FD48560000-memory.dmp

Filesize
64KB

Download
memory/1056-21-0x00007FFBA2D40000-0x00007FFBA3801000-memory.dmp

Filesize
10.8MB

Download
memory/3492-0-0x00000296DE120000-0x00000296DE6C0000-memory.dmp

Filesize
5.6MB

Download
memory/3492-1-0x00007FFBA2D40000-0x00007FFBA3801000-memory.dmp

Filesize
10.8MB

Download
memory/3492-6-0x00000296F8AF0000-0x00000296F8B66000-memory.dmp

Filesize
472KB

Download
memory/3492-7-0x00000296F8D10000-0x00000296F8D20000-memory.dmp

Filesize
64KB

Download
memory/3492-8-0x00000296E03C0000-0x00000296E03DE000-memory.dmp

Filesize
120KB

Download
memory/3492-12-0x00007FFBA2D40000-0x00007FFBA3801000-memory.dmp

Filesize
10.8MB

Download