modiloader | 45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781

Analysis

max time kernel
118s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 05:42

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General

Target

45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe
Size

90KB
MD5

fb23f28fdce1578e8def60e422875fd0
SHA1

322d5ce6b7a34b7d27ea5bf39bb35f190eb4e28b
SHA256

45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781
SHA512

b1b319cc06bc03bdfb5a09b43baccded1a8f373329d0ee78d67bbc387a5e44da837f92e027fab1aa68c3c3fc59193815705685e11fed51ad780b639210724d1a
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDy:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE30

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/768-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/768-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/768-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/768-62-0x0000000000400000-0x0000000000414000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe

Executes dropped EXE 3 IoCs

pid	Process
2248	csrsll.exe
3656	csrsll.exe
768	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-1-5-21-4050598569-1597076380-177084960-1000\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 3720 set thread context of 3160	3720	45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe	82
PID 2248 set thread context of 3656	2248	csrsll.exe	95
PID 2248 set thread context of 768	2248	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3720-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3720-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3160-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3160-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3720-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3160-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b94-29.dat	upx
behavioral2/memory/3160-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2248-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2248-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/768-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/768-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/768-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/768-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2248-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/768-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3160-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3656-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/768-62-0x0000000000400000-0x0000000000414000-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	45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3720	45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe
3160	45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe
2248	csrsll.exe
3656	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3720 wrote to memory of 3160	3720	45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe	82
PID 3720 wrote to memory of 3160	3720	45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe	82
PID 3720 wrote to memory of 3160	3720	45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe	82
PID 3720 wrote to memory of 3160	3720	45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe	82
PID 3720 wrote to memory of 3160	3720	45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe	82
PID 3720 wrote to memory of 3160	3720	45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe	82
PID 3720 wrote to memory of 3160	3720	45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe	82
PID 3720 wrote to memory of 3160	3720	45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe	82
PID 3160 wrote to memory of 1620	3160	45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe	87
PID 3160 wrote to memory of 1620	3160	45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe	87
PID 3160 wrote to memory of 1620	3160	45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe	87
PID 1620 wrote to memory of 5096	1620	cmd.exe	90
PID 1620 wrote to memory of 5096	1620	cmd.exe	90
PID 1620 wrote to memory of 5096	1620	cmd.exe	90
PID 3160 wrote to memory of 2248	3160	45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe	91
PID 3160 wrote to memory of 2248	3160	45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe	91
PID 3160 wrote to memory of 2248	3160	45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe	91
PID 2248 wrote to memory of 3656	2248	csrsll.exe	95
PID 2248 wrote to memory of 3656	2248	csrsll.exe	95
PID 2248 wrote to memory of 3656	2248	csrsll.exe	95
PID 2248 wrote to memory of 3656	2248	csrsll.exe	95
PID 2248 wrote to memory of 3656	2248	csrsll.exe	95
PID 2248 wrote to memory of 3656	2248	csrsll.exe	95
PID 2248 wrote to memory of 3656	2248	csrsll.exe	95
PID 2248 wrote to memory of 3656	2248	csrsll.exe	95
PID 2248 wrote to memory of 768	2248	csrsll.exe	96
PID 2248 wrote to memory of 768	2248	csrsll.exe	96
PID 2248 wrote to memory of 768	2248	csrsll.exe	96
PID 2248 wrote to memory of 768	2248	csrsll.exe	96
PID 2248 wrote to memory of 768	2248	csrsll.exe	96
PID 2248 wrote to memory of 768	2248	csrsll.exe	96
PID 2248 wrote to memory of 768	2248	csrsll.exe	96
PID 2248 wrote to memory of 768	2248	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe
"C:\Users\Admin\AppData\Local\Temp\45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3720
- C:\Users\Admin\AppData\Local\Temp\45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe
  "C:\Users\Admin\AppData\Local\Temp\45bc8f44cfddeb4cb3d58d1afef5f3bba747817d5a500d6908dee5d1ef5ea781N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3160
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\MKOJR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1620
  - - 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:5096
- - 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:2248
  - - 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:3656
  - - 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:768

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\MKOJR.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
c3dce6708a4232b865a74ddde76cd6be

SHA1
17188fbf7c85e1fe0301792f8d92dc4d3cb67205

SHA256
87e41236d48e93a5ec120736a2a3daca0b7b88b67bd20843683f3452918c6cf6

SHA512
e022442c0f33d2a283554aba6ebe9227cae3472636ae6dc9e5888a368a8161950813fa3465737a58dbc08211f64fe99cafc5f00c03877bc56d1a32abf9fbc161

Download Submit
memory/768-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/768-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/768-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/768-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/768-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/768-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2248-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2248-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2248-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3160-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3160-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3160-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3160-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3160-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3160-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3656-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3720-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3720-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3720-6-0x0000000002340000-0x0000000002342000-memory.dmp

Filesize
8KB

Download
memory/3720-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3720-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/3720-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads