milleniumrat | 4a665905b9f38b14bdf6df4534d4be7e1f1f66e18c117fdf09bf3ae113e7f9ae

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-12-2024 15:03

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General

Target

SwissArmySuite/SwissArmySuite.exe
Size

19.5MB
MD5

11d14c97869ea381661418d7f7ed24f3
SHA1

1ad45d4bafe7b62c61960d212fa61011a43c546b
SHA256

703bd75c721e362922484aed47f52a25e70e9e6555b01e569f460753e6b64dc8
SHA512

2b15c4c412e4f182a9c6329001f83d67f92317afa90c4d86bcffdf59f87e44d42ca82d74d880927397465bc3ae7d265a99485d03c824c081e71c7a6fc2f05adc
SSDEEP

393216:GB62IN4Eg5zDmMStlgQYrMUGBuaUrs6BlLN:GB6X4N5fmMHRu7Ug6BlR

Score

10^/10

milleniumrat discovery persistence rat spyware stealer

Malware Config

Signatures

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

Executes dropped EXE 4 IoCs

Processes:

jjj.exeSwissArmySuite.exeDotStealerBuild.exebuilt.exe

pid	Process
2348	jjj.exe
1672	SwissArmySuite.exe
2760	DotStealerBuild.exe
2840	built.exe

Loads dropped DLL 3 IoCs

Processes:

SwissArmySuite.exeDotStealerBuild.exebuilt.exe

pid	Process
3056	SwissArmySuite.exe
2760	DotStealerBuild.exe
2840	built.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\ChromeUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\SwissArmySuite\\built.exe"	reg.exe

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

Web Service

T1102

Processes:

flow	ioc
5	raw.githubusercontent.com
6	raw.githubusercontent.com
12	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
7	ip-api.com

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
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 4 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

DotStealerBuild.exebuilt.exe

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

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

Processes:

reg.exe

pid	Process
2188	reg.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

Processes:

DotStealerBuild.exebuilt.exe

pid	Process
2760	DotStealerBuild.exe
2760	DotStealerBuild.exe
2760	DotStealerBuild.exe
2840	built.exe
2840	built.exe
2840	built.exe
2760	DotStealerBuild.exe
2760	DotStealerBuild.exe
2760	DotStealerBuild.exe
2760	DotStealerBuild.exe
2760	DotStealerBuild.exe
2760	DotStealerBuild.exe
2840	built.exe
2840	built.exe
2840	built.exe
2840	built.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

DotStealerBuild.exebuilt.exe

description	pid	Process
Token: SeDebugPrivilege	2760	DotStealerBuild.exe
Token: SeDebugPrivilege	2840	built.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

built.exe

pid	Process
2840	built.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

SwissArmySuite.exejjj.exeDotStealerBuild.exebuilt.execmd.exe

description	pid	Process	procid_target
PID 3056 wrote to memory of 2348	3056	SwissArmySuite.exe	30
PID 3056 wrote to memory of 2348	3056	SwissArmySuite.exe	30
PID 3056 wrote to memory of 2348	3056	SwissArmySuite.exe	30
PID 3056 wrote to memory of 1672	3056	SwissArmySuite.exe	31
PID 3056 wrote to memory of 1672	3056	SwissArmySuite.exe	31
PID 3056 wrote to memory of 1672	3056	SwissArmySuite.exe	31
PID 2348 wrote to memory of 2760	2348	jjj.exe	33
PID 2348 wrote to memory of 2760	2348	jjj.exe	33
PID 2348 wrote to memory of 2760	2348	jjj.exe	33
PID 2348 wrote to memory of 2840	2348	jjj.exe	34
PID 2348 wrote to memory of 2840	2348	jjj.exe	34
PID 2348 wrote to memory of 2840	2348	jjj.exe	34
PID 2760 wrote to memory of 1636	2760	DotStealerBuild.exe	37
PID 2760 wrote to memory of 1636	2760	DotStealerBuild.exe	37
PID 2760 wrote to memory of 1636	2760	DotStealerBuild.exe	37
PID 2840 wrote to memory of 2976	2840	built.exe	39
PID 2840 wrote to memory of 2976	2840	built.exe	39
PID 2840 wrote to memory of 2976	2840	built.exe	39
PID 2976 wrote to memory of 2188	2976	cmd.exe	41
PID 2976 wrote to memory of 2188	2976	cmd.exe	41
PID 2976 wrote to memory of 2188	2976	cmd.exe	41
PID 2840 wrote to memory of 2584	2840	built.exe	42
PID 2840 wrote to memory of 2584	2840	built.exe	42
PID 2840 wrote to memory of 2584	2840	built.exe	42

C:\Users\Admin\AppData\Local\Temp\SwissArmySuite\SwissArmySuite.exe
"C:\Users\Admin\AppData\Local\Temp\SwissArmySuite\SwissArmySuite.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3056
- C:\Users\Admin\AppData\Roaming\jjj.exe
  "C:\Users\Admin\AppData\Roaming\jjj.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2348
- - C:\Users\Admin\AppData\Roaming\DotStealerBuild.exe
    "C:\Users\Admin\AppData\Roaming\DotStealerBuild.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2760
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpCDCA.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmpCDCA.tmp.bat
      4⤵
      PID:1636
- - C:\Users\Admin\AppData\Roaming\built.exe
    "C:\Users\Admin\AppData\Roaming\built.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:2840
  - - 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\Local\Temp\SwissArmySuite\built.exe /f
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2976
    - - C:\Windows\system32\reg.exe
        
        reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v ChromeUpdate /t REG_SZ /d C:\Users\Admin\AppData\Local\Temp\SwissArmySuite\built.exe /f
        5⤵
        Adds Run key to start application
        Modifies registry key
        
        PID:2188
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2840 -s 1960
      4⤵
      PID:2584
- C:\Users\Admin\AppData\Roaming\SwissArmySuite.exe
  "C:\Users\Admin\AppData\Roaming\SwissArmySuite.exe"
  2⤵
  - Executes dropped EXE
  PID:1672

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

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\tmpCDCA.tmp.bat

Filesize
119B

MD5
7b520168d7ef6cc706241d1ed65ba42f

SHA1
a119262f0ad95bbb4ca8a6ad8a52e7c6db7ffe5f

SHA256
22a5bf26a3276c09158a8e6ab43753b13f9f0a4c891975ed9d0f7a6471428494

SHA512
de23910e1c7529f53e6ec0fdf575361834ae4f32548821fb3475821b6ddc224e7130139283f3402ba9b0efd61a70ef6930c7a6f1298e48480119e43ce6933dfe

Download Submit
C:\Users\Admin\AppData\Roaming\AdminUserCash\COOKIE~1

Filesize
20KB

MD5
c9ff7748d8fcef4cf84a5501e996a641

SHA1
02867e5010f62f97ebb0cfb32cb3ede9449fe0c9

SHA256
4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988

SHA512
d36054499869a8f56ac8547ccd5455f1252c24e17d2b185955390b32da7e2a732ace4e0f30f9493fcc61425a2e31ed623465f998f41af69423ee0e3ed1483a73

Download Submit
C:\Users\Admin\AppData\Roaming\AdminUserCash\CREDIT~1

Filesize
92KB

MD5
9dacdf7238269810f4c56455bc02a2b5

SHA1
a4fdddc32f512bc7b3973b0026a65c61f0c09823

SHA256
96b70070ce33ffeec40bed34dbbed3b79b32d709e5f0c422ce4448b2574a8d8a

SHA512
05214bc2eea84586a19a35713a5132a2453ff6dc9b6bfa1304fc2fc9e89e05d250378102b04c692004c38d4caa1a334cdc01b827f0cfaee9d276cbd6ea95cd47

Download Submit
C:\Users\Admin\AppData\Roaming\AdminUserCash\LOGIN_~1

Filesize
46KB

MD5
02d2c46697e3714e49f46b680b9a6b83

SHA1
84f98b56d49f01e9b6b76a4e21accf64fd319140

SHA256
522cad95d3fa6ebb3274709b8d09bbb1ca37389d0a924cd29e934a75aa04c6c9

SHA512
60348a145bfc71b1e07cb35fa79ab5ff472a3d0a557741ea2d39b3772bc395b86e261bd616f65307ae0d997294e49b5548d32f11e86ef3e2704959ca63da8aac

Download Submit
C:\Users\Admin\AppData\Roaming\AdminUserCash\[GB]525683457 - Log\DesktopFiles\LimitTrace.xlsx

Filesize
9KB

MD5
e2fae70fefebaa70b28e3f0eb1b0b567

SHA1
a70fe0858d61e8a6035445a0d9a0cdb4ca942049

SHA256
c55a3015eaa0eef2ed09d4384e715108084280d8fbbe378796b2c6c73c56b79d

SHA512
9e7f7d48a491f5863bdaf572dca921be39998b27ee11023af33a055335d48dce39cab7c2317a2e636e4e239ee06ff231f466585e0a1d3753c7afb98e7ce780c4

Download Submit
C:\Users\Admin\AppData\Roaming\DotStealerBuild.exe

Filesize
5.6MB

MD5
52f581505afef83b39aefde9ae711e35

SHA1
579bbee21d09878d11cc10b045cd32c00dede4b0

SHA256
01bd7c1203d3bd62440082a8dd0789b46b7e0481ad98951f53487094784e0a02

SHA512
0a294de86a495d425b68fdc574e364868cf6629ebf12f426cbbb3258c35c5b93a41e6d5a4bad833733afb155fe965f03d1bf0fe73d5294a9f58dd4a6b8819c25

Download Submit
C:\Users\Admin\AppData\Roaming\SwissArmySuite.exe

Filesize
8.1MB

MD5
8ce7f4eb149ecc2e868a7c7bd5ee2282

SHA1
6b6d877f0b0fcd1ace72f9f6069145a4d921f680

SHA256
abc1c1c17694fcad7f7882cc62fa87c9774b807526ed09c8087bf70b1a8c5c18

SHA512
eca7238603a04febec7980f6d9572d97b49bcac2a1e0f0d43a898e71da647c0bf9e918fe709d5989f90f9b0f8cc3ab4a2507e0cbfb7ae5200c0410f8045f6d09

Download Submit
C:\Users\Admin\AppData\Roaming\built.exe

Filesize
5.6MB

MD5
63b01821cbe6ef9e33fb2b756da07fef

SHA1
e4f618bc9d7c7e534460499ac73eb7a97253aa69

SHA256
7666b280f3eae2e92b753115a29be18dc5d108775e174172308905a02b08e730

SHA512
10d96eed133fe5cc8a01bfe97649affcbf74aaa37ea7eebea545733cd300544a60ac11b9b47dbedd382e6004bc945acf0a78a796b32a1148fbb502fd7ed0adfc

Download Submit
C:\Users\Admin\AppData\Roaming\jjj.exe

Filesize
11.3MB

MD5
4dc27dd3f53e59f186fe7c78d9671874

SHA1
04e30a4612fdb4d53a9335a8ebbf2574d5027a55

SHA256
3b59d780cff0716f35557705bcc4a5d43ecabfa3e5fd79e93e4245049fab7585

SHA512
bd916c3515f0ef24969df0693d36ffd1bcc21acade1531bd7b0773892570d18255f89e3b52ee071937960b7372c70128ca64d1f22dc3107a2a368b77ae160135

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/2348-12-0x0000000000120000-0x0000000000C72000-memory.dmp

Filesize
11.3MB

Download
memory/2348-31-0x000007FEF58B0000-0x000007FEF629C000-memory.dmp

Filesize
9.9MB

Download
memory/2348-84-0x000007FEF58B0000-0x000007FEF629C000-memory.dmp

Filesize
9.9MB

Download
memory/2760-32-0x0000000000BE0000-0x0000000000C4A000-memory.dmp

Filesize
424KB

Download
memory/2760-34-0x000000001BC20000-0x000000001BCD2000-memory.dmp

Filesize
712KB

Download
memory/2760-36-0x00000000009C0000-0x00000000009E5000-memory.dmp

Filesize
148KB

Download
memory/2760-23-0x00000000003B0000-0x0000000000948000-memory.dmp

Filesize
5.6MB

Download
memory/2840-75-0x00000000025F0000-0x0000000002615000-memory.dmp

Filesize
148KB

Download
memory/2840-24-0x0000000000310000-0x00000000008B2000-memory.dmp

Filesize
5.6MB

Download
memory/2840-73-0x000000001BC60000-0x000000001BD12000-memory.dmp

Filesize
712KB

Download
memory/3056-0-0x000007FEF58B3000-0x000007FEF58B4000-memory.dmp

Filesize
4KB

Download
memory/3056-1-0x00000000002F0000-0x0000000001678000-memory.dmp

Filesize
19.5MB

Download