modiloader | 158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-12-2024 23:18

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General

Target

158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe
Size

90KB
MD5

a0904a11080b73856607cbf61f84a88c
SHA1

9d82487040dc5e20e23a6d8a7a55f64f1a6c9cd8
SHA256

158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8
SHA512

84f6b68ff90e1144990bf873437c49ee9fb5c06b409171a655a835449542a7feb1f10ab5cc404aac720759823a98b83dc8ea809a11f22a3130cc0ee06ebb17a3
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD2:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Q

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/4860-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4860-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4860-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4860-62-0x0000000000400000-0x0000000000414000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe

Executes dropped EXE 3 IoCs

pid	Process
2728	csrsll.exe
2224	csrsll.exe
4860	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-1-5-21-1045960512-3948844814-3059691613-1000\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 4148 set thread context of 4436	4148	158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe	84
PID 2728 set thread context of 2224	2728	csrsll.exe	103
PID 2728 set thread context of 4860	2728	csrsll.exe	104

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4148-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4148-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4436-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4436-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4148-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4436-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c85-29.dat	upx
behavioral2/memory/4436-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2728-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2728-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2728-48-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4860-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4860-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4436-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4860-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4860-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4860-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2224-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4860-62-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe
Token: SeDebugPrivilege	2224	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4148	158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe
4436	158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe
2728	csrsll.exe
2224	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4148 wrote to memory of 4436	4148	158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe	84
PID 4148 wrote to memory of 4436	4148	158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe	84
PID 4148 wrote to memory of 4436	4148	158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe	84
PID 4148 wrote to memory of 4436	4148	158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe	84
PID 4148 wrote to memory of 4436	4148	158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe	84
PID 4148 wrote to memory of 4436	4148	158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe	84
PID 4148 wrote to memory of 4436	4148	158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe	84
PID 4148 wrote to memory of 4436	4148	158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe	84
PID 4436 wrote to memory of 3704	4436	158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe	87
PID 4436 wrote to memory of 3704	4436	158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe	87
PID 4436 wrote to memory of 3704	4436	158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe	87
PID 3704 wrote to memory of 1988	3704	cmd.exe	91
PID 3704 wrote to memory of 1988	3704	cmd.exe	91
PID 3704 wrote to memory of 1988	3704	cmd.exe	91
PID 4436 wrote to memory of 2728	4436	158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe	92
PID 4436 wrote to memory of 2728	4436	158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe	92
PID 4436 wrote to memory of 2728	4436	158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe	92
PID 2728 wrote to memory of 2224	2728	csrsll.exe	103
PID 2728 wrote to memory of 2224	2728	csrsll.exe	103
PID 2728 wrote to memory of 2224	2728	csrsll.exe	103
PID 2728 wrote to memory of 2224	2728	csrsll.exe	103
PID 2728 wrote to memory of 2224	2728	csrsll.exe	103
PID 2728 wrote to memory of 2224	2728	csrsll.exe	103
PID 2728 wrote to memory of 2224	2728	csrsll.exe	103
PID 2728 wrote to memory of 2224	2728	csrsll.exe	103
PID 2728 wrote to memory of 4860	2728	csrsll.exe	104
PID 2728 wrote to memory of 4860	2728	csrsll.exe	104
PID 2728 wrote to memory of 4860	2728	csrsll.exe	104
PID 2728 wrote to memory of 4860	2728	csrsll.exe	104
PID 2728 wrote to memory of 4860	2728	csrsll.exe	104
PID 2728 wrote to memory of 4860	2728	csrsll.exe	104
PID 2728 wrote to memory of 4860	2728	csrsll.exe	104
PID 2728 wrote to memory of 4860	2728	csrsll.exe	104

C:\Users\Admin\AppData\Local\Temp\158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe
"C:\Users\Admin\AppData\Local\Temp\158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4148
- C:\Users\Admin\AppData\Local\Temp\158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe
  "C:\Users\Admin\AppData\Local\Temp\158bb3c066d66f3dfc5fa4e2ccedc12a967c63f4e84fc0b0c271bd9750a488f8.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4436
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\HGRON.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3704
  - - 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:1988
- - 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:2728
  - - 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:2224
  - - 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:4860

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\HGRON.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
36e2835202e6ecd6238db4f9b3507c54

SHA1
2c1461a0fd61952c6ddc9c7ec2c83f83e863cc65

SHA256
a5f425a54a9916042f4fca2ce06ef278474449543cde1ab9d148af3b7f3007ae

SHA512
422b6b01fa99e51234b1400073413721a50d8bb06bc6c69fcfa02ac8b50e9e3dcc2e6c01079bb39f3d0959e43f1dd08a701ad6226cd16dda3a2abcd20553a1d4

Download Submit
memory/2224-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2728-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2728-48-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2728-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4148-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/4148-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/4148-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/4148-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4148-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4148-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4436-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4436-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4436-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4436-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4436-57-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4436-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4860-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4860-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4860-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4860-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4860-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4860-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads