modiloader | fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-12-2024 02:37

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General

Target

fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe
Size

90KB
MD5

4b7bfed82859e30da1a1aa6eef89825e
SHA1

9755442eb0a45c15c37f7f28981176f4681a9303
SHA256

fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4
SHA512

97c9cbd70f83a46c1fa266cc71a7a4d6c21e3d568a3ae171f9ae580093e906b67502dd173410d49f29679fba58111b221d799ad379c15041b52dd9ca5c7a6d4e
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDb:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3B

Score

10^/10

modiloader discovery persistence trojan upx

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
Modiloader family
modiloader

ModiLoader Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/1532-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1532-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1532-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1532-61-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 1 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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe

Executes dropped EXE 3 IoCs

pid	Process
4236	csrsll.exe
3068	csrsll.exe
1532	csrsll.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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 972 set thread context of 2808	972	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	86
PID 4236 set thread context of 3068	4236	csrsll.exe	95
PID 4236 set thread context of 1532	4236	csrsll.exe	96

UPX packed file 19 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/972-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/972-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2808-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2808-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/972-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2808-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023cbc-28.dat	upx
behavioral2/memory/2808-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4236-39-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4236-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1532-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1532-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1532-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1532-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4236-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1532-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2808-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3068-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1532-61-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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 7 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
972	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe
2808	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe
4236	csrsll.exe
3068	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 972 wrote to memory of 2808	972	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	86
PID 972 wrote to memory of 2808	972	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	86
PID 972 wrote to memory of 2808	972	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	86
PID 972 wrote to memory of 2808	972	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	86
PID 972 wrote to memory of 2808	972	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	86
PID 972 wrote to memory of 2808	972	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	86
PID 972 wrote to memory of 2808	972	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	86
PID 972 wrote to memory of 2808	972	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	86
PID 2808 wrote to memory of 2336	2808	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	87
PID 2808 wrote to memory of 2336	2808	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	87
PID 2808 wrote to memory of 2336	2808	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	87
PID 2336 wrote to memory of 4488	2336	cmd.exe	90
PID 2336 wrote to memory of 4488	2336	cmd.exe	90
PID 2336 wrote to memory of 4488	2336	cmd.exe	90
PID 2808 wrote to memory of 4236	2808	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	91
PID 2808 wrote to memory of 4236	2808	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	91
PID 2808 wrote to memory of 4236	2808	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	91
PID 4236 wrote to memory of 3068	4236	csrsll.exe	95
PID 4236 wrote to memory of 3068	4236	csrsll.exe	95
PID 4236 wrote to memory of 3068	4236	csrsll.exe	95
PID 4236 wrote to memory of 3068	4236	csrsll.exe	95
PID 4236 wrote to memory of 3068	4236	csrsll.exe	95
PID 4236 wrote to memory of 3068	4236	csrsll.exe	95
PID 4236 wrote to memory of 3068	4236	csrsll.exe	95
PID 4236 wrote to memory of 3068	4236	csrsll.exe	95
PID 4236 wrote to memory of 1532	4236	csrsll.exe	96
PID 4236 wrote to memory of 1532	4236	csrsll.exe	96
PID 4236 wrote to memory of 1532	4236	csrsll.exe	96
PID 4236 wrote to memory of 1532	4236	csrsll.exe	96
PID 4236 wrote to memory of 1532	4236	csrsll.exe	96
PID 4236 wrote to memory of 1532	4236	csrsll.exe	96
PID 4236 wrote to memory of 1532	4236	csrsll.exe	96
PID 4236 wrote to memory of 1532	4236	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe
"C:\Users\Admin\AppData\Local\Temp\fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:972
- C:\Users\Admin\AppData\Local\Temp\fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe
  "C:\Users\Admin\AppData\Local\Temp\fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2808
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\MCQMK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2336
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:4488
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4236
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:3068
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:1532

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\MCQMK.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

Filesize
90KB

MD5
b48f44e367ebbee4ddf2ed2023196f1a

SHA1
2c935396e447ebb1b6e4233c9769b88165df31e3

SHA256
edab167c8c72b2da003a2914aedf3cf460eee524dab9f026ee5bb69f0f759b10

SHA512
d0d502d75f6f8e1de559d4b388e9e4159aab79a8e2261185eb43af692baa1b51288ad3946f94324616b9dbeb586b90f81c98364bb51421e9a8f0dbbef70a2a73

Download Submit
memory/972-3-0x00000000021C0000-0x00000000021C2000-memory.dmp

Filesize
8KB

Download
memory/972-6-0x00000000021F0000-0x00000000021F2000-memory.dmp

Filesize
8KB

Download
memory/972-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/972-5-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/972-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/972-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1532-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1532-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1532-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1532-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1532-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1532-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2808-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2808-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2808-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2808-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2808-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3068-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4236-39-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4236-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4236-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads