modiloader | 3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0acea

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-01-2025 10:14

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General

Target

3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe
Size

90KB
MD5

e3887a41e9aee0193c8e536420285d80
SHA1

d83286989b6433a889e0807418f12b6e32fb6898
SHA256

3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0acea
SHA512

55fa8740f8ae924e738ac71299db100cb17de76b59c7b91955963ab694af0cf367d83ebb97721592b028b0ab2184e59e6ba16ffdb96d1dd9e48d42a43806aa53
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD9:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3T

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/1060-254-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2692	csrsll.exe
1372	csrsll.exe
1060	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2620	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe
2620	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe
2620	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe
2620	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe
2620	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.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-1-5-21-3533259084-2542256011-65585152-1000\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 1920 set thread context of 2620	1920	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe	31
PID 2692 set thread context of 1372	2692	csrsll.exe	36
PID 2692 set thread context of 1060	2692	csrsll.exe	37

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1920-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1920-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1920-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2620-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2620-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1920-104-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2620-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2620-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2620-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2620-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000a000000015d5c-129.dat	upx
behavioral1/memory/2692-148-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2620-151-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2692-209-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1060-248-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2620-247-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2692-244-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1060-254-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1372-253-0x0000000000400000-0x000000000040B000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe
Token: SeDebugPrivilege	1372	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1920	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe
2620	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe
2692	csrsll.exe
1372	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1920 wrote to memory of 2620	1920	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe	31
PID 1920 wrote to memory of 2620	1920	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe	31
PID 1920 wrote to memory of 2620	1920	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe	31
PID 1920 wrote to memory of 2620	1920	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe	31
PID 1920 wrote to memory of 2620	1920	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe	31
PID 1920 wrote to memory of 2620	1920	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe	31
PID 1920 wrote to memory of 2620	1920	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe	31
PID 1920 wrote to memory of 2620	1920	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe	31
PID 2620 wrote to memory of 2992	2620	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe	32
PID 2620 wrote to memory of 2992	2620	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe	32
PID 2620 wrote to memory of 2992	2620	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe	32
PID 2620 wrote to memory of 2992	2620	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe	32
PID 2992 wrote to memory of 1288	2992	cmd.exe	34
PID 2992 wrote to memory of 1288	2992	cmd.exe	34
PID 2992 wrote to memory of 1288	2992	cmd.exe	34
PID 2992 wrote to memory of 1288	2992	cmd.exe	34
PID 2620 wrote to memory of 2692	2620	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe	35
PID 2620 wrote to memory of 2692	2620	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe	35
PID 2620 wrote to memory of 2692	2620	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe	35
PID 2620 wrote to memory of 2692	2620	3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe	35
PID 2692 wrote to memory of 1372	2692	csrsll.exe	36
PID 2692 wrote to memory of 1372	2692	csrsll.exe	36
PID 2692 wrote to memory of 1372	2692	csrsll.exe	36
PID 2692 wrote to memory of 1372	2692	csrsll.exe	36
PID 2692 wrote to memory of 1372	2692	csrsll.exe	36
PID 2692 wrote to memory of 1372	2692	csrsll.exe	36
PID 2692 wrote to memory of 1372	2692	csrsll.exe	36
PID 2692 wrote to memory of 1372	2692	csrsll.exe	36
PID 2692 wrote to memory of 1060	2692	csrsll.exe	37
PID 2692 wrote to memory of 1060	2692	csrsll.exe	37
PID 2692 wrote to memory of 1060	2692	csrsll.exe	37
PID 2692 wrote to memory of 1060	2692	csrsll.exe	37
PID 2692 wrote to memory of 1060	2692	csrsll.exe	37
PID 2692 wrote to memory of 1060	2692	csrsll.exe	37
PID 2692 wrote to memory of 1060	2692	csrsll.exe	37
PID 2692 wrote to memory of 1060	2692	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe
"C:\Users\Admin\AppData\Local\Temp\3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1920
- C:\Users\Admin\AppData\Local\Temp\3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe
  "C:\Users\Admin\AppData\Local\Temp\3b0adcf163e9d57743bf9a7b7b0f051db5748727421e892de7739c4278c0aceaN.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2620
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\AVSRV.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2992
  - - 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:1288
- - 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:2692
  - - 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:1372
  - - 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:1060

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\AVSRV.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
924da1a6af35151aa45fb00d5684ce22

SHA1
86cea3460b4e16d260ca0aa62304659cc862d562

SHA256
2a1b672b494d53d3a7702795a9a4950517d928734163c2900ea0a9f1750e229c

SHA512
d61ac387998cd8d08b90cce9d51df8af7404bb2c5fdd0dc2eef2d15e6d399bd1f78db3158d113dbaecf3603a2579681397247cab40a5961669eee258e79120fe

Download Submit
memory/1060-248-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1060-254-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1372-253-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1920-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/1920-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1920-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1920-29-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/1920-79-0x0000000000530000-0x0000000000532000-memory.dmp

Filesize
8KB

Download
memory/1920-71-0x0000000000510000-0x0000000000511000-memory.dmp

Filesize
4KB

Download
memory/1920-61-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/1920-41-0x0000000000470000-0x0000000000471000-memory.dmp

Filesize
4KB

Download
memory/1920-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1920-15-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/1920-3-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1920-104-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1920-5-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2620-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2620-146-0x0000000003490000-0x00000000034E3000-memory.dmp

Filesize
332KB

Download
memory/2620-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2620-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2620-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2620-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2620-147-0x0000000003490000-0x00000000034E3000-memory.dmp

Filesize
332KB

Download
memory/2620-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2620-145-0x0000000003490000-0x00000000034E3000-memory.dmp

Filesize
332KB

Download
memory/2620-144-0x0000000003490000-0x00000000034E3000-memory.dmp

Filesize
332KB

Download
memory/2620-151-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2620-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2620-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2620-247-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2692-148-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2692-209-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2692-175-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/2692-244-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2692-164-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2692-154-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads