modiloader | 775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fd

Analysis

max time kernel
119s
max time network
117s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
03-01-2025 16:00

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General

Target

775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe
Size

90KB
MD5

616d05a5ad360542c7c51a149b73ae40
SHA1

c328327b75f024d4290bfa55800eaaf26b23d797
SHA256

775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fd
SHA512

252fbb55622a41c9640249295879981227a399422ffe902560138f89556af315133b1988a879c938cbc5eeb1caca5167cfc796a618140d6d4d72a7b0f4cbbb41
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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 1 IoCs

resource	yara_rule
behavioral1/memory/2392-256-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2056	csrsll.exe
2768	csrsll.exe
2392	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
1584	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe
1584	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe
1584	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe
1584	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe
1584	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.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-1-5-21-2039016743-699959520-214465309-1000\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 2288 set thread context of 1584	2288	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	28
PID 2056 set thread context of 2768	2056	csrsll.exe	33
PID 2056 set thread context of 2392	2056	csrsll.exe	34

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2288-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2288-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2288-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1584-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1584-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1584-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1584-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1584-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2288-102-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1584-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x00080000000120fc-131.dat	upx
behavioral1/memory/1584-133-0x00000000031D0000-0x0000000003223000-memory.dmp	upx
behavioral1/memory/1584-146-0x00000000031D0000-0x0000000003223000-memory.dmp	upx
behavioral1/memory/1584-153-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1584-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2056-253-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2392-256-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2768-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2768-260-0x0000000000400000-0x000000000040B000-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	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.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	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe
Token: SeDebugPrivilege	2768	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2288	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe
1584	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe
2056	csrsll.exe
2768	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2288 wrote to memory of 1584	2288	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	28
PID 2288 wrote to memory of 1584	2288	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	28
PID 2288 wrote to memory of 1584	2288	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	28
PID 2288 wrote to memory of 1584	2288	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	28
PID 2288 wrote to memory of 1584	2288	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	28
PID 2288 wrote to memory of 1584	2288	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	28
PID 2288 wrote to memory of 1584	2288	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	28
PID 2288 wrote to memory of 1584	2288	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	28
PID 1584 wrote to memory of 652	1584	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	29
PID 1584 wrote to memory of 652	1584	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	29
PID 1584 wrote to memory of 652	1584	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	29
PID 1584 wrote to memory of 652	1584	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	29
PID 652 wrote to memory of 2944	652	cmd.exe	31
PID 652 wrote to memory of 2944	652	cmd.exe	31
PID 652 wrote to memory of 2944	652	cmd.exe	31
PID 652 wrote to memory of 2944	652	cmd.exe	31
PID 1584 wrote to memory of 2056	1584	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	32
PID 1584 wrote to memory of 2056	1584	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	32
PID 1584 wrote to memory of 2056	1584	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	32
PID 1584 wrote to memory of 2056	1584	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	32
PID 2056 wrote to memory of 2768	2056	csrsll.exe	33
PID 2056 wrote to memory of 2768	2056	csrsll.exe	33
PID 2056 wrote to memory of 2768	2056	csrsll.exe	33
PID 2056 wrote to memory of 2768	2056	csrsll.exe	33
PID 2056 wrote to memory of 2768	2056	csrsll.exe	33
PID 2056 wrote to memory of 2768	2056	csrsll.exe	33
PID 2056 wrote to memory of 2768	2056	csrsll.exe	33
PID 2056 wrote to memory of 2768	2056	csrsll.exe	33
PID 2056 wrote to memory of 2392	2056	csrsll.exe	34
PID 2056 wrote to memory of 2392	2056	csrsll.exe	34
PID 2056 wrote to memory of 2392	2056	csrsll.exe	34
PID 2056 wrote to memory of 2392	2056	csrsll.exe	34
PID 2056 wrote to memory of 2392	2056	csrsll.exe	34
PID 2056 wrote to memory of 2392	2056	csrsll.exe	34
PID 2056 wrote to memory of 2392	2056	csrsll.exe	34
PID 2056 wrote to memory of 2392	2056	csrsll.exe	34

C:\Users\Admin\AppData\Local\Temp\775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe
"C:\Users\Admin\AppData\Local\Temp\775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2288
- C:\Users\Admin\AppData\Local\Temp\775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe
  "C:\Users\Admin\AppData\Local\Temp\775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1584
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\WBYMY.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:652
  - - 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:2944
- - 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:2056
  - - 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:2768
  - - 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:2392

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

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\WBYMY.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
89b5b243932e7e35354988383747da31

SHA1
919096fb550f317fb3f77cb06c664a367f7020df

SHA256
426b89c17725b0225062f574954822d4f975a6998e4f23cf1c44a90463fd7a50

SHA512
af6a7eb49f8db9258f0e8c1098cdf1e21a7f0b23548d71b404d0fa255543570c2d50544158029f98c085b994cd67e4ef87ebd348dd38fd1d07d7ed99c2d8d97e

Download Submit
memory/1584-133-0x00000000031D0000-0x0000000003223000-memory.dmp

Filesize
332KB

Download
memory/1584-220-0x00000000031D0000-0x0000000003223000-memory.dmp

Filesize
332KB

Download
memory/1584-251-0x00000000031D0000-0x0000000003223000-memory.dmp

Filesize
332KB

Download
memory/1584-153-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1584-146-0x00000000031D0000-0x0000000003223000-memory.dmp

Filesize
332KB

Download
memory/1584-148-0x00000000031D0000-0x0000000003223000-memory.dmp

Filesize
332KB

Download
memory/1584-149-0x00000000031D0000-0x0000000003223000-memory.dmp

Filesize
332KB

Download
memory/1584-147-0x00000000031D0000-0x0000000003223000-memory.dmp

Filesize
332KB

Download
memory/1584-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1584-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1584-246-0x00000000031D0000-0x0000000003223000-memory.dmp

Filesize
332KB

Download
memory/1584-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1584-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1584-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1584-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1584-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1584-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1584-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2056-156-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2056-177-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2056-166-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2056-253-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2288-71-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2288-18-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2288-102-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2288-79-0x00000000003A0000-0x00000000003A2000-memory.dmp

Filesize
8KB

Download
memory/2288-29-0x0000000000300000-0x0000000000301000-memory.dmp

Filesize
4KB

Download
memory/2288-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2288-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2288-41-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/2288-15-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2288-61-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/2288-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2288-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2288-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2288-90-0x0000000000610000-0x0000000000663000-memory.dmp

Filesize
332KB

Download
memory/2392-256-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2768-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2768-260-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads