modiloader | c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/09/2024, 03:16

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General

Target

c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe
Size

90KB
MD5

419ccd2d6a00eab1b6a5778a73ce88ce
SHA1

936dcf3b2ba031758c7e9d38597aa66e0c7b1e61
SHA256

c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934
SHA512

72f82a89f03a0319a442bb81fd2087e1ae0829ebc360532e20f2b6a7f694d7d6f7ff3d6385afea284b8b8eb804dd20f7e16308e545ca237d7d3b38f8ff44f1b2
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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/4136-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4136-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4136-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4136-64-0x0000000000400000-0x0000000000414000-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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe

Executes dropped EXE 3 IoCs

pid	Process
592	csrsll.exe
1800	csrsll.exe
4136	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2092-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2092-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2652-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2652-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2092-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2652-14-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000c000000023372-30.dat	upx
behavioral2/memory/592-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2652-41-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/592-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/592-43-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4136-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4136-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4136-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4136-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4136-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/592-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2652-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1800-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4136-64-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-945322488-2060912225-3527527000-1000\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 2092 set thread context of 2652	2092	c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe	91
PID 592 set thread context of 1800	592	csrsll.exe	99
PID 592 set thread context of 4136	592	csrsll.exe	100

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	c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.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	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe
Token: SeDebugPrivilege	1800	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2092	c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe
2652	c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe
592	csrsll.exe
1800	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 2652	2092	c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe	91
PID 2092 wrote to memory of 2652	2092	c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe	91
PID 2092 wrote to memory of 2652	2092	c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe	91
PID 2092 wrote to memory of 2652	2092	c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe	91
PID 2092 wrote to memory of 2652	2092	c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe	91
PID 2092 wrote to memory of 2652	2092	c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe	91
PID 2092 wrote to memory of 2652	2092	c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe	91
PID 2092 wrote to memory of 2652	2092	c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe	91
PID 2652 wrote to memory of 4004	2652	c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe	92
PID 2652 wrote to memory of 4004	2652	c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe	92
PID 2652 wrote to memory of 4004	2652	c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe	92
PID 4004 wrote to memory of 224	4004	cmd.exe	95
PID 4004 wrote to memory of 224	4004	cmd.exe	95
PID 4004 wrote to memory of 224	4004	cmd.exe	95
PID 2652 wrote to memory of 592	2652	c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe	96
PID 2652 wrote to memory of 592	2652	c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe	96
PID 2652 wrote to memory of 592	2652	c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe	96
PID 592 wrote to memory of 1800	592	csrsll.exe	99
PID 592 wrote to memory of 1800	592	csrsll.exe	99
PID 592 wrote to memory of 1800	592	csrsll.exe	99
PID 592 wrote to memory of 1800	592	csrsll.exe	99
PID 592 wrote to memory of 1800	592	csrsll.exe	99
PID 592 wrote to memory of 1800	592	csrsll.exe	99
PID 592 wrote to memory of 1800	592	csrsll.exe	99
PID 592 wrote to memory of 1800	592	csrsll.exe	99
PID 592 wrote to memory of 4136	592	csrsll.exe	100
PID 592 wrote to memory of 4136	592	csrsll.exe	100
PID 592 wrote to memory of 4136	592	csrsll.exe	100
PID 592 wrote to memory of 4136	592	csrsll.exe	100
PID 592 wrote to memory of 4136	592	csrsll.exe	100
PID 592 wrote to memory of 4136	592	csrsll.exe	100
PID 592 wrote to memory of 4136	592	csrsll.exe	100
PID 592 wrote to memory of 4136	592	csrsll.exe	100

C:\Users\Admin\AppData\Local\Temp\c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe
"C:\Users\Admin\AppData\Local\Temp\c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2092
- C:\Users\Admin\AppData\Local\Temp\c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe
  "C:\Users\Admin\AppData\Local\Temp\c02d221e36ca7da72ae31f31421c4027f404d532002ae6e07c4239f3759c6934.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2652
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\MLTKU.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4004
  - - 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:224
- - 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:592
  - - 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:1800
  - - 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:4136

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\MLTKU.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
03cd96e7dd6500cd092999c334c45684

SHA1
4649d8667290258db3b83d13497b1cebcc4310cb

SHA256
aab20a3232b5a899c5da078c690ec77b0e4ddde867144afa1d60bef126d7050d

SHA512
a01b028bc53ab8d356f862eee202d63bea42c87772fa1f2e18ba75b0240c7ffd4cfedf0c8a45fadaf203da5904a2fbbb5527b21f1763e9ccb7ac189e095e1855

Download Submit
memory/592-43-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/592-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/592-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/592-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1800-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2092-4-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/2092-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2092-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2092-6-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/2092-7-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/2092-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2092-3-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/2652-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2652-41-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2652-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2652-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2652-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2652-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4136-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4136-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4136-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4136-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4136-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4136-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads