milleniumrat | 175f015bf73436df6aafd994cb3d6ee8b43d8993d04f6f449e25f3d66d960925

General

Target

update/Update.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
Executes dropped EXE 1 IoCs

Processes:

Update.exe

pid process

2140 Update.exe
Loads dropped DLL 2 IoCs

Processes:

Update.exeUpdate.exe

pid process

2700 Update.exe
2140 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

pid	process
2140	Update.exe

pid	process
2700	Update.exe
2140	Update.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\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

Processes:

flow ioc

6 raw.githubusercontent.com
7 raw.githubusercontent.com
10 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.

Processes:

flow ioc

4 ip-api.com
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

flow	ioc
6	raw.githubusercontent.com
7	raw.githubusercontent.com
10	raw.githubusercontent.com

flow	ioc
4	ip-api.com

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

Processes:

Update.exe

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

Processes:

timeout.exe

pid process

2748 timeout.exe
Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery
T1057

Processes:

tasklist.exe

pid process

2868 tasklist.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

reg.exe

pid process

2692 reg.exe
Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

Update.exeUpdate.exe

pid process

2700 Update.exe
2700 Update.exe
2700 Update.exe
2140 Update.exe
2140 Update.exe
2140 Update.exe
2140 Update.exe
2140 Update.exe
2140 Update.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Update.exetasklist.exeUpdate.exe

description pid process

Token: SeDebugPrivilege 2700 Update.exe
Token: SeDebugPrivilege 2868 tasklist.exe
Token: SeDebugPrivilege 2140 Update.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Update.exe

pid process

2140 Update.exe

pid	process
2748	timeout.exe

pid	process
2868	tasklist.exe

pid	process
2692	reg.exe

pid	process
2700	Update.exe
2700	Update.exe
2700	Update.exe
2140	Update.exe
2140	Update.exe
2140	Update.exe
2140	Update.exe
2140	Update.exe
2140	Update.exe

description	pid	process
Token: SeDebugPrivilege	2700	Update.exe
Token: SeDebugPrivilege	2868	tasklist.exe
Token: SeDebugPrivilege	2140	Update.exe

pid	process
2140	Update.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

Update.execmd.exeUpdate.execmd.exe

description	pid	process	target process
PID 2700 wrote to memory of 2292	2700	Update.exe	cmd.exe
PID 2700 wrote to memory of 2292	2700	Update.exe	cmd.exe
PID 2700 wrote to memory of 2292	2700	Update.exe	cmd.exe
PID 2292 wrote to memory of 2868	2292	cmd.exe	tasklist.exe
PID 2292 wrote to memory of 2868	2292	cmd.exe	tasklist.exe
PID 2292 wrote to memory of 2868	2292	cmd.exe	tasklist.exe
PID 2292 wrote to memory of 2928	2292	cmd.exe	find.exe
PID 2292 wrote to memory of 2928	2292	cmd.exe	find.exe
PID 2292 wrote to memory of 2928	2292	cmd.exe	find.exe
PID 2292 wrote to memory of 2748	2292	cmd.exe	timeout.exe
PID 2292 wrote to memory of 2748	2292	cmd.exe	timeout.exe
PID 2292 wrote to memory of 2748	2292	cmd.exe	timeout.exe
PID 2292 wrote to memory of 2140	2292	cmd.exe	Update.exe
PID 2292 wrote to memory of 2140	2292	cmd.exe	Update.exe
PID 2292 wrote to memory of 2140	2292	cmd.exe	Update.exe
PID 2140 wrote to memory of 2616	2140	Update.exe	cmd.exe
PID 2140 wrote to memory of 2616	2140	Update.exe	cmd.exe
PID 2140 wrote to memory of 2616	2140	Update.exe	cmd.exe
PID 2616 wrote to memory of 2692	2616	cmd.exe	reg.exe
PID 2616 wrote to memory of 2692	2616	cmd.exe	reg.exe
PID 2616 wrote to memory of 2692	2616	cmd.exe	reg.exe
PID 2140 wrote to memory of 2892	2140	Update.exe	WerFault.exe
PID 2140 wrote to memory of 2892	2140	Update.exe	WerFault.exe
PID 2140 wrote to memory of 2892	2140	Update.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\update\Update.exe
"C:\Users\Admin\AppData\Local\Temp\update\Update.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2700
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpAC37.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmpAC37.tmp.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2292
- - C:\Windows\system32\tasklist.exe
    Tasklist /fi "PID eq 2700"
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:2868
- - C:\Windows\system32\find.exe
    find ":"
    3⤵
    PID:2928
- - C:\Windows\system32\timeout.exe
    Timeout /T 1 /Nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:2748
- - C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe
    "C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe"
    3⤵
    - 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:2140
  - - 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:2616
    - - 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:2692
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2140 -s 1588
      4⤵
      PID:2892

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Process Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpAC37.tmp.bat

Filesize
256B

MD5
15ad8d0a0fcbb0613c79e4445fb29d49

SHA1
f2a8d14854225aa4952df536ed7c59a41eeb3d47

SHA256
3b530db24ad0e51a6ca5e79c10577f292d2835700d76d7f511d9b6b55d24bf91

SHA512
7483b762644ace8ad68b5b9a2186d50e3c676f2faf76de35d557b853e5927a8c1f387d23b4671fcccc45e724ff8f897a55eee6d881fe81f06629c55c1f5de99b

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

Filesize
5.6MB

MD5
3d3c49dd5d13a242b436e0a065cd6837

SHA1
e38a773ffa08452c449ca5a880d89cfad24b6f1b

SHA256
e0338c845a876d585eceb084311e84f3becd6fa6f0851567ba2c5f00eeaf4ecf

SHA512
dd0e590310392b0543d47a2d24d55f6f091ba59acc0d7ea533039ffb48f1b8938587889bcfa19b0538a62ba26fcde2172253860ceab34af40fd7bf65b6587b00

Download Submit
\Users\Admin\AppData\Local\Temp\Costura\A54E036D2DCD19384E8EA53862E0DD8F\64\sqlite.interop.dll

Filesize
1.7MB

MD5
65ccd6ecb99899083d43f7c24eb8f869

SHA1
27037a9470cc5ed177c0b6688495f3a51996a023

SHA256
aba67c7e6c01856838b8bc6b0ba95e864e1fdcb3750aa7cdc1bc73511cea6fe4

SHA512
533900861fe36cf78b614d6a7ce741ff1172b41cbd5644b4a9542e6ca42702e6fbfb12f0fbaae8f5992320870a15e90b4f7bf180705fc9839db433413860be6d

Download Submit
memory/2140-14-0x0000000000D80000-0x0000000001320000-memory.dmp

Filesize
5.6MB

Download
memory/2140-17-0x000000001CAF0000-0x000000001CB5A000-memory.dmp

Filesize
424KB

Download
memory/2140-20-0x0000000002760000-0x0000000002785000-memory.dmp

Filesize
148KB

Download
memory/2700-0-0x000007FEF5873000-0x000007FEF5874000-memory.dmp

Filesize
4KB

Download
memory/2700-1-0x0000000000F70000-0x0000000001510000-memory.dmp

Filesize
5.6MB

Download
memory/2700-6-0x000007FEF5870000-0x000007FEF625C000-memory.dmp

Filesize
9.9MB

Download
memory/2700-9-0x000007FEF5870000-0x000007FEF625C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads