77d14133134b278a32839de0ed58091d4a29a5d49daeff04bc0ec0f569553d2e

Analysis

max time kernel
150s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2024 17:50

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General

Target

1337 SteamACC Stealer Private/1337 SteamACC Stealer Private.exe
Size

193KB
MD5

d3b6a612e1627ac55ed1036d37c078d2
SHA1

86971ed075e24fbcb5590a42432c0610f77a009d
SHA256

a5cd5d4e6cebf88a8237da82cd4472ff39270f06ad5759eb0e2ea10e04a4a8b5
SHA512

728cf4d1a2e29341aa381673302faf199abb4ee24937eee65e888a7a2adb83ae64626dfecf09b857d0b129b9d2955de86a4c3082422d89830b852f143afb2b75
SSDEEP

1536:x4lOeP6M2v9YZQfx+kPmJBtxPeZ3YtlylA9+9POMjHi:x4lOA8hfx+xJBeZ3sylA9+9GWi

Score

8^/10

discovery execution persistence

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exepowershell.exe

pid process

4120 powershell.exe
3376 powershell.exe

pid	process
4120	powershell.exe
3376	powershell.exe

Checks computer location settings 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

Runtime Explorer.exe1337 SteamACC Stealer Private.exeWindows Services.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	Runtime Explorer.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	1337 SteamACC Stealer Private.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	Windows Services.exe

Drops startup file 1 IoCs

Processes:

Launcher.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Startup.lnk Launcher.exe
Executes dropped EXE 3 IoCs

Processes:

Windows Services.exeSecure System Shell.exeRuntime Explorer.exe

pid process

4252 Windows Services.exe
4904 Secure System Shell.exe
2108 Runtime Explorer.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Startup.lnk	Launcher.exe

pid	process
4252	Windows Services.exe
4904	Secure System Shell.exe
2108	Runtime Explorer.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Launcher.exeRuntime Explorer.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Runtime Explorer = "C:\\Windows\\IMF\\\\Windows Services.exe"	Launcher.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Runtime Explorer = "\"C:\\Users\\Admin\\AppData\\Roaming\\Runtime Explorer.exe\""	Runtime Explorer.exe

Drops file in Windows directory 9 IoCs

Processes:

Launcher.exe

description	ioc	process
File created	C:\Windows\IMF\Windows Services.exe.tmp	Launcher.exe
File opened for modification	C:\Windows\IMF\Windows Services.exe	Launcher.exe
File opened for modification	C:\Windows\IMF\Secure System Shell.exe	Launcher.exe
File opened for modification	C:\Windows\IMF\LICENCE.zip	Launcher.exe
File opened for modification	C:\Windows\IMF\Runtime Explorer.exe	Launcher.exe
File created	C:\Windows\IMF\Runtime Explorer.exe.tmp	Launcher.exe
File created	C:\Windows\IMF\Secure System Shell.exe.tmp	Launcher.exe
File created	C:\Windows\IMF\LICENCE.zip	Launcher.exe
File created	C:\Windows\IMF\LICENCE.dat	Launcher.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

bin.exepowershell.exeWindows Services.exeSecure System Shell.exeRuntime Explorer.exepowershell.exe1337 SteamACC Stealer Private.exeLauncher.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bin.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Windows Services.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Secure System Shell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Runtime Explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1337 SteamACC Stealer Private.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Launcher.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

Launcher.exepowershell.exeWindows Services.exeSecure System Shell.exepowershell.exe

pid	process
1420	Launcher.exe
4120	powershell.exe
4120	powershell.exe
4252	Windows Services.exe
4252	Windows Services.exe
4252	Windows Services.exe
4252	Windows Services.exe
4904	Secure System Shell.exe
3376	powershell.exe
3376	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

Launcher.exepowershell.exeWindows Services.exeSecure System Shell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1420	Launcher.exe
Token: SeDebugPrivilege	4120	powershell.exe
Token: SeDebugPrivilege	4252	Windows Services.exe
Token: SeDebugPrivilege	4904	Secure System Shell.exe
Token: SeDebugPrivilege	3376	powershell.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

bin.exeRuntime Explorer.exe

pid process

3488 bin.exe
2108 Runtime Explorer.exe

pid	process
3488	bin.exe
2108	Runtime Explorer.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

1337 SteamACC Stealer Private.exeLauncher.exeWindows Services.exeRuntime Explorer.exe

description	pid	process	target process
PID 2232 wrote to memory of 1420	2232	1337 SteamACC Stealer Private.exe	Launcher.exe
PID 2232 wrote to memory of 1420	2232	1337 SteamACC Stealer Private.exe	Launcher.exe
PID 2232 wrote to memory of 1420	2232	1337 SteamACC Stealer Private.exe	Launcher.exe
PID 2232 wrote to memory of 3488	2232	1337 SteamACC Stealer Private.exe	bin.exe
PID 2232 wrote to memory of 3488	2232	1337 SteamACC Stealer Private.exe	bin.exe
PID 2232 wrote to memory of 3488	2232	1337 SteamACC Stealer Private.exe	bin.exe
PID 1420 wrote to memory of 4120	1420	Launcher.exe	powershell.exe
PID 1420 wrote to memory of 4120	1420	Launcher.exe	powershell.exe
PID 1420 wrote to memory of 4120	1420	Launcher.exe	powershell.exe
PID 1420 wrote to memory of 4252	1420	Launcher.exe	Windows Services.exe
PID 1420 wrote to memory of 4252	1420	Launcher.exe	Windows Services.exe
PID 1420 wrote to memory of 4252	1420	Launcher.exe	Windows Services.exe
PID 4252 wrote to memory of 4904	4252	Windows Services.exe	Secure System Shell.exe
PID 4252 wrote to memory of 4904	4252	Windows Services.exe	Secure System Shell.exe
PID 4252 wrote to memory of 4904	4252	Windows Services.exe	Secure System Shell.exe
PID 4252 wrote to memory of 2108	4252	Windows Services.exe	Runtime Explorer.exe
PID 4252 wrote to memory of 2108	4252	Windows Services.exe	Runtime Explorer.exe
PID 4252 wrote to memory of 2108	4252	Windows Services.exe	Runtime Explorer.exe
PID 2108 wrote to memory of 3376	2108	Runtime Explorer.exe	powershell.exe
PID 2108 wrote to memory of 3376	2108	Runtime Explorer.exe	powershell.exe
PID 2108 wrote to memory of 3376	2108	Runtime Explorer.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\1337 SteamACC Stealer Private\1337 SteamACC Stealer Private.exe
"C:\Users\Admin\AppData\Local\Temp\1337 SteamACC Stealer Private\1337 SteamACC Stealer Private.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Users\Admin\AppData\Local\Temp\1337 SteamACC Stealer Private\data\Launcher.exe
  "C:\Users\Admin\AppData\Local\Temp\1337 SteamACC Stealer Private\data\Launcher.exe"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1420
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" add-mppreference -exclusionpath C:\Windows\IMF\
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4120
- - C:\Windows\IMF\Windows Services.exe
    "C:\Windows\IMF\Windows Services.exe" {Arguments If Needed}
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4252
  - - C:\Windows\IMF\Secure System Shell.exe
      "C:\Windows\IMF\Secure System Shell.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4904
  - - C:\Windows\IMF\Runtime Explorer.exe
      "C:\Windows\IMF\Runtime Explorer.exe"
      4⤵
      Checks computer location settings
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2108
    - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" add-mppreference -exclusionpath C:\Users\Admin\AppData\Roaming\
        5⤵
        Command and Scripting Interpreter: PowerShell
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:3376
- C:\Users\Admin\AppData\Local\Temp\1337 SteamACC Stealer Private\data\bin.exe
  "C:\Users\Admin\AppData\Local\Temp\1337 SteamACC Stealer Private\data\bin.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:3488

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
96ba3cfd671829b7febbfaf373067d1d

SHA1
17a242d9b1b3bf5ad2483912f52f8048694d41a7

SHA256
48dee6ef3cd6a950a6f72f37a2d5bb9566f12c6d5029da6a7eb60ddff7330c09

SHA512
0e54216fc8c172b223e440a9d312f8a9e5ac00d1683b74173c6d61a9b407f184864c841e77302085b50a79865e987da0429c6f547dfd36f424a212bfa866bc12

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_skpixltz.3fz.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Windows\IMF\Runtime Explorer.exe

Filesize
152KB

MD5
03f5e0141f4519f0c5ac26ce0b036a0f

SHA1
4f7a2a230e7a194a898cc9f2d563ac8777fe99c0

SHA256
78a408c628e33e3332645f480ee7ce01b5dc24fc96cf16ffa0868d43f3d421ef

SHA512
86a68f040654006e06b51c5714e0d7168d0d1bef7f3c39843632068104f773f771d21be4bc251d712f3e915cd1058f89ad31d9e3f3d9e7cf6da6785cbf22d8d7

Download Submit
C:\Windows\IMF\Secure System Shell.exe

Filesize
45KB

MD5
7d0c7359e5b2daa5665d01afdc98cc00

SHA1
c3cc830c8ffd0f53f28d89dcd9f3426be87085cb

SHA256
f1abd5ab03189e82971513e6ca04bd372fcf234d670079888f01cf4addd49809

SHA512
a8f82b11b045d8dd744506f4f56f3382b33a03684a6aebc91a02ea901c101b91cb43b7d0213f72f39cbb22f616ecd5de8b9e6c99fb5669f26a3ea6bcb63c8407

Download Submit
C:\Windows\IMF\Windows Services.exe

Filesize
46KB

MD5
ad0ce1302147fbdfecaec58480eb9cf9

SHA1
874efbc76e5f91bc1425a43ea19400340f98d42b

SHA256
2c339b52b82e73b4698a0110cdfe310c00c5c69078e9e1bd6fa1308652bf82a3

SHA512
adccd5520e01b673c2fc5c451305fe31b1a3e74891aece558f75fefc50218adf1fb81bb8c7f19969929d3fecb0fdb2cb5b564400d51e0a5a1ad8d5bc2d4eed53

Download Submit
memory/1420-13-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/1420-85-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/1420-8-0x0000000000AB0000-0x0000000000AC4000-memory.dmp

Filesize
80KB

Download
memory/1420-9-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/1420-10-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/1420-11-0x0000000006620000-0x000000000669E000-memory.dmp

Filesize
504KB

Download
memory/1420-56-0x0000000007280000-0x000000000729E000-memory.dmp

Filesize
120KB

Download
memory/1420-55-0x00000000072A0000-0x0000000007316000-memory.dmp

Filesize
472KB

Download
memory/2232-0-0x0000000074F2E000-0x0000000074F2F000-memory.dmp

Filesize
4KB

Download
memory/2232-2-0x0000000004AB0000-0x0000000004B4C000-memory.dmp

Filesize
624KB

Download
memory/2232-7-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/2232-6-0x0000000004DF0000-0x0000000004E46000-memory.dmp

Filesize
344KB

Download
memory/2232-1-0x00000000001F0000-0x0000000000226000-memory.dmp

Filesize
216KB

Download
memory/2232-5-0x0000000004B90000-0x0000000004B9A000-memory.dmp

Filesize
40KB

Download
memory/2232-4-0x0000000004BF0000-0x0000000004C82000-memory.dmp

Filesize
584KB

Download
memory/2232-3-0x0000000005100000-0x00000000056A4000-memory.dmp

Filesize
5.6MB

Download
memory/2232-16-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/3376-126-0x0000000007830000-0x0000000007844000-memory.dmp

Filesize
80KB

Download
memory/3376-125-0x00000000077F0000-0x0000000007801000-memory.dmp

Filesize
68KB

Download
memory/3376-124-0x00000000074B0000-0x0000000007553000-memory.dmp

Filesize
652KB

Download
memory/3376-114-0x000000006F4D0000-0x000000006F51C000-memory.dmp

Filesize
304KB

Download
memory/4120-20-0x00000000051C0000-0x0000000005226000-memory.dmp

Filesize
408KB

Download
memory/4120-90-0x0000000007510000-0x0000000007521000-memory.dmp

Filesize
68KB

Download
memory/4120-58-0x000000006F4D0000-0x000000006F51C000-memory.dmp

Filesize
304KB

Download
memory/4120-68-0x0000000006FB0000-0x0000000006FCE000-memory.dmp

Filesize
120KB

Download
memory/4120-73-0x0000000006FE0000-0x0000000007083000-memory.dmp

Filesize
652KB

Download
memory/4120-17-0x00000000026E0000-0x0000000002716000-memory.dmp

Filesize
216KB

Download
memory/4120-33-0x0000000006030000-0x000000000607C000-memory.dmp

Filesize
304KB

Download
memory/4120-87-0x0000000007310000-0x000000000732A000-memory.dmp

Filesize
104KB

Download
memory/4120-86-0x0000000007960000-0x0000000007FDA000-memory.dmp

Filesize
6.5MB

Download
memory/4120-88-0x0000000007380000-0x000000000738A000-memory.dmp

Filesize
40KB

Download
memory/4120-89-0x0000000007590000-0x0000000007626000-memory.dmp

Filesize
600KB

Download
memory/4120-57-0x00000000065C0000-0x00000000065F2000-memory.dmp

Filesize
200KB

Download
memory/4120-18-0x00000000053A0000-0x00000000059C8000-memory.dmp

Filesize
6.2MB

Download
memory/4120-99-0x0000000007540000-0x000000000754E000-memory.dmp

Filesize
56KB

Download
memory/4120-100-0x0000000007550000-0x0000000007564000-memory.dmp

Filesize
80KB

Download
memory/4120-101-0x0000000007650000-0x000000000766A000-memory.dmp

Filesize
104KB

Download
memory/4120-102-0x0000000007630000-0x0000000007638000-memory.dmp

Filesize
32KB

Download
memory/4120-32-0x0000000005FE0000-0x0000000005FFE000-memory.dmp

Filesize
120KB

Download
memory/4120-31-0x0000000005B90000-0x0000000005EE4000-memory.dmp

Filesize
3.3MB

Download
memory/4120-21-0x00000000052E0000-0x0000000005346000-memory.dmp

Filesize
408KB

Download
memory/4120-19-0x0000000005020000-0x0000000005042000-memory.dmp

Filesize
136KB

Download
memory/4252-84-0x00000000005F0000-0x0000000000602000-memory.dmp

Filesize
72KB

Download
memory/4904-96-0x0000000000460000-0x0000000000472000-memory.dmp

Filesize
72KB

Download