modiloader | a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26

Analysis

max time kernel
149s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01/12/2024, 18:44

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General

Target

a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe
Size

90KB
MD5

f8e5514a18c0bc2e41da6d1d05d3f949
SHA1

b844427331996ebbbe46ff60755f82170f91b322
SHA256

a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26
SHA512

96335bd62a0e5e0f2162c0264a41217d09fc08830b5ef93f317e2368a7534b06c4090a1a08c32f0d10b4df70229c1dcedbacc9fbf4b2c5553e629726973d4057
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDm:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3c

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/2580-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2580-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2580-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2580-63-0x0000000000400000-0x0000000000414000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe

Executes dropped EXE 3 IoCs

pid	Process
3532	csrsll.exe
4104	csrsll.exe
2580	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-1-5-21-940901362-3608833189-1915618603-1000\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 2452 set thread context of 5084	2452	a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe	83
PID 3532 set thread context of 4104	3532	csrsll.exe	97
PID 3532 set thread context of 2580	3532	csrsll.exe	98

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2452-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2452-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5084-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5084-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2452-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5084-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023c86-29.dat	upx
behavioral2/memory/5084-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3532-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3532-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2580-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2580-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2580-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2580-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2580-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3532-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5084-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4104-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2580-63-0x0000000000400000-0x0000000000414000-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	a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe
Token: SeDebugPrivilege	4104	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2452	a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe
5084	a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe
3532	csrsll.exe
4104	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2452 wrote to memory of 5084	2452	a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe	83
PID 2452 wrote to memory of 5084	2452	a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe	83
PID 2452 wrote to memory of 5084	2452	a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe	83
PID 2452 wrote to memory of 5084	2452	a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe	83
PID 2452 wrote to memory of 5084	2452	a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe	83
PID 2452 wrote to memory of 5084	2452	a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe	83
PID 2452 wrote to memory of 5084	2452	a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe	83
PID 2452 wrote to memory of 5084	2452	a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe	83
PID 5084 wrote to memory of 2448	5084	a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe	84
PID 5084 wrote to memory of 2448	5084	a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe	84
PID 5084 wrote to memory of 2448	5084	a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe	84
PID 2448 wrote to memory of 1336	2448	cmd.exe	88
PID 2448 wrote to memory of 1336	2448	cmd.exe	88
PID 2448 wrote to memory of 1336	2448	cmd.exe	88
PID 5084 wrote to memory of 3532	5084	a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe	89
PID 5084 wrote to memory of 3532	5084	a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe	89
PID 5084 wrote to memory of 3532	5084	a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe	89
PID 3532 wrote to memory of 4104	3532	csrsll.exe	97
PID 3532 wrote to memory of 4104	3532	csrsll.exe	97
PID 3532 wrote to memory of 4104	3532	csrsll.exe	97
PID 3532 wrote to memory of 4104	3532	csrsll.exe	97
PID 3532 wrote to memory of 4104	3532	csrsll.exe	97
PID 3532 wrote to memory of 4104	3532	csrsll.exe	97
PID 3532 wrote to memory of 4104	3532	csrsll.exe	97
PID 3532 wrote to memory of 4104	3532	csrsll.exe	97
PID 3532 wrote to memory of 2580	3532	csrsll.exe	98
PID 3532 wrote to memory of 2580	3532	csrsll.exe	98
PID 3532 wrote to memory of 2580	3532	csrsll.exe	98
PID 3532 wrote to memory of 2580	3532	csrsll.exe	98
PID 3532 wrote to memory of 2580	3532	csrsll.exe	98
PID 3532 wrote to memory of 2580	3532	csrsll.exe	98
PID 3532 wrote to memory of 2580	3532	csrsll.exe	98
PID 3532 wrote to memory of 2580	3532	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe
"C:\Users\Admin\AppData\Local\Temp\a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2452
- C:\Users\Admin\AppData\Local\Temp\a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe
  "C:\Users\Admin\AppData\Local\Temp\a198448e35980ad99cc82485178d3dff209cd0c903184ba64edc839a04b36d26.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5084
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\VWJPW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2448
  - - 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:1336
- - 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:3532
  - - 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:4104
  - - 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:2580

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

Replay Monitor

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
cc63a628d05af6b0a50e0f9f1a4943f8

SHA1
f85a06447e8cca071886bd444186b3ac813d5df4

SHA256
76bc408696e464eff344a1a0c57461dddb147f99987cdd425951048ce4af34c5

SHA512
31a95b0846a2215482338cff669dd834f2ed49118acc306e8d902aad59ebd9da626ed0168ffb82ec99cf690b4bd254913cec0f92ef20a1a9e1dda6e1d73af9d7

Download Submit
memory/2452-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/2452-4-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/2452-6-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/2452-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2452-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2452-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2580-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2580-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2580-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2580-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2580-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2580-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3532-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3532-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3532-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4104-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5084-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5084-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5084-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5084-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5084-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads