modiloader | 44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30

Analysis

max time kernel
149s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-12-2024 21:52

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General

Target

44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe
Size

90KB
MD5

cbf1d5adebcdcc4b7c95c9b85865480d
SHA1

e3b7dba81913a34fe6f87bd142b0ceaed95a577d
SHA256

44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30
SHA512

b65b88457f03f031f175b14d066604f8dc430f0bf1607b69255cc510a956b2eebb1070d04cd9794f615fc1c9622fdb9b3e96fa4c2355a8eac0a0e1c313d24ea9
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDY:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3e

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 2 IoCs

resource	yara_rule
behavioral1/memory/1076-257-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/1076-260-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1868	csrsll.exe
1968	csrsll.exe
1076	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
3036	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe
3036	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe
3036	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe
3036	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe
3036	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.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 2124 set thread context of 3036	2124	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	31
PID 1868 set thread context of 1968	1868	csrsll.exe	36
PID 1868 set thread context of 1076	1868	csrsll.exe	37

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2124-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2124-77-0x00000000002D0000-0x00000000003D0000-memory.dmp	upx
behavioral1/memory/3036-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3036-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3036-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2124-100-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3036-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3036-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3036-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2124-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2124-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x000a000000015d50-130.dat	upx
behavioral1/memory/3036-132-0x0000000003450000-0x00000000034A3000-memory.dmp	upx
behavioral1/memory/1868-150-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3036-153-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1868-213-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3036-254-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1076-257-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1868-246-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1968-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1076-260-0x0000000000400000-0x0000000000414000-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	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.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	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe
Token: SeDebugPrivilege	1968	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2124	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe
3036	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe
1868	csrsll.exe
1968	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 3036	2124	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	31
PID 2124 wrote to memory of 3036	2124	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	31
PID 2124 wrote to memory of 3036	2124	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	31
PID 2124 wrote to memory of 3036	2124	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	31
PID 2124 wrote to memory of 3036	2124	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	31
PID 2124 wrote to memory of 3036	2124	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	31
PID 2124 wrote to memory of 3036	2124	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	31
PID 2124 wrote to memory of 3036	2124	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	31
PID 3036 wrote to memory of 1372	3036	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	32
PID 3036 wrote to memory of 1372	3036	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	32
PID 3036 wrote to memory of 1372	3036	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	32
PID 3036 wrote to memory of 1372	3036	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	32
PID 1372 wrote to memory of 1236	1372	cmd.exe	34
PID 1372 wrote to memory of 1236	1372	cmd.exe	34
PID 1372 wrote to memory of 1236	1372	cmd.exe	34
PID 1372 wrote to memory of 1236	1372	cmd.exe	34
PID 3036 wrote to memory of 1868	3036	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	35
PID 3036 wrote to memory of 1868	3036	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	35
PID 3036 wrote to memory of 1868	3036	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	35
PID 3036 wrote to memory of 1868	3036	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	35
PID 1868 wrote to memory of 1968	1868	csrsll.exe	36
PID 1868 wrote to memory of 1968	1868	csrsll.exe	36
PID 1868 wrote to memory of 1968	1868	csrsll.exe	36
PID 1868 wrote to memory of 1968	1868	csrsll.exe	36
PID 1868 wrote to memory of 1968	1868	csrsll.exe	36
PID 1868 wrote to memory of 1968	1868	csrsll.exe	36
PID 1868 wrote to memory of 1968	1868	csrsll.exe	36
PID 1868 wrote to memory of 1968	1868	csrsll.exe	36
PID 1868 wrote to memory of 1076	1868	csrsll.exe	37
PID 1868 wrote to memory of 1076	1868	csrsll.exe	37
PID 1868 wrote to memory of 1076	1868	csrsll.exe	37
PID 1868 wrote to memory of 1076	1868	csrsll.exe	37
PID 1868 wrote to memory of 1076	1868	csrsll.exe	37
PID 1868 wrote to memory of 1076	1868	csrsll.exe	37
PID 1868 wrote to memory of 1076	1868	csrsll.exe	37
PID 1868 wrote to memory of 1076	1868	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe
"C:\Users\Admin\AppData\Local\Temp\44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Users\Admin\AppData\Local\Temp\44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe
  "C:\Users\Admin\AppData\Local\Temp\44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3036
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\BCXTO.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1372
  - - 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:1236
- - 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:1868
  - - 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:1968
  - - 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:1076

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\BCXTO.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
402fd3356fc44081f128b823cd94ea06

SHA1
391257fa982ca34b32e72647032c5528d6400e22

SHA256
9fa2b36d4e6905703b899ee06590b47c4d77dece5ac863f6288d3cc2d9ce88dd

SHA512
d058dea1619f49f1d2a8465c408b3cb10d716b81ae6b4a04fc0d53fe020290dfbbebcfe487770b91137709ad5ec5b574f666bf7524531059015f05645b76c7d8

Download Submit
memory/1076-260-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1076-257-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1868-150-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1868-156-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1868-213-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1868-246-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1968-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2124-15-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2124-100-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2124-74-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/2124-73-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/2124-5-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2124-77-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/2124-79-0x0000000001E50000-0x0000000001E52000-memory.dmp

Filesize
8KB

Download
memory/2124-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2124-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2124-76-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/2124-29-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2124-71-0x0000000000600000-0x0000000000601000-memory.dmp

Filesize
4KB

Download
memory/2124-61-0x00000000005E0000-0x00000000005E1000-memory.dmp

Filesize
4KB

Download
memory/2124-41-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2124-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2124-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2124-3-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/3036-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3036-132-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/3036-148-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/3036-147-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/3036-146-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/3036-145-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/3036-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3036-153-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3036-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3036-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3036-254-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3036-251-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/3036-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3036-255-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/3036-249-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/3036-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3036-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3036-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads