modiloader | ccab43ad00dd51272ef60039043a9ce25aa6a03941f9a65142343d96d8918e39

Analysis

max time kernel
119s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17/08/2024, 15:03

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General

Target

e323cd931e336f684b1e061f2a34e5a0N.exe
Size

90KB
MD5

e323cd931e336f684b1e061f2a34e5a0
SHA1

e81463413fb6954500899edfb3c2b2a22b1829a2
SHA256

ccab43ad00dd51272ef60039043a9ce25aa6a03941f9a65142343d96d8918e39
SHA512

d6fb2396e02635f72507a47fd38691ad8d522b2687d0937d50c348baf6272898692755bd89d7c934fda5ffd3353b5cee02007606e1abd63c4c70f7cf7d2dcaeb
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/1572-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1572-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1572-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1572-62-0x0000000000400000-0x0000000000414000-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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	e323cd931e336f684b1e061f2a34e5a0N.exe

Executes dropped EXE 3 IoCs

pid	Process
3584	csrsll.exe
2928	csrsll.exe
1572	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3188-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3188-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3332-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3332-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3188-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3332-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000233a2-29.dat	upx
behavioral2/memory/3584-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3332-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3584-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3584-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1572-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1572-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1572-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3584-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1572-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1572-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3332-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2928-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1572-62-0x0000000000400000-0x0000000000414000-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-1-5-21-2412658365-3084825385-3340777666-1000\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 3188 set thread context of 3332	3188	e323cd931e336f684b1e061f2a34e5a0N.exe	91
PID 3584 set thread context of 2928	3584	csrsll.exe	100
PID 3584 set thread context of 1572	3584	csrsll.exe	101

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	e323cd931e336f684b1e061f2a34e5a0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e323cd931e336f684b1e061f2a34e5a0N.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	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3188	e323cd931e336f684b1e061f2a34e5a0N.exe
3332	e323cd931e336f684b1e061f2a34e5a0N.exe
3584	csrsll.exe
2928	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3188 wrote to memory of 3332	3188	e323cd931e336f684b1e061f2a34e5a0N.exe	91
PID 3188 wrote to memory of 3332	3188	e323cd931e336f684b1e061f2a34e5a0N.exe	91
PID 3188 wrote to memory of 3332	3188	e323cd931e336f684b1e061f2a34e5a0N.exe	91
PID 3188 wrote to memory of 3332	3188	e323cd931e336f684b1e061f2a34e5a0N.exe	91
PID 3188 wrote to memory of 3332	3188	e323cd931e336f684b1e061f2a34e5a0N.exe	91
PID 3188 wrote to memory of 3332	3188	e323cd931e336f684b1e061f2a34e5a0N.exe	91
PID 3188 wrote to memory of 3332	3188	e323cd931e336f684b1e061f2a34e5a0N.exe	91
PID 3188 wrote to memory of 3332	3188	e323cd931e336f684b1e061f2a34e5a0N.exe	91
PID 3332 wrote to memory of 4940	3332	e323cd931e336f684b1e061f2a34e5a0N.exe	92
PID 3332 wrote to memory of 4940	3332	e323cd931e336f684b1e061f2a34e5a0N.exe	92
PID 3332 wrote to memory of 4940	3332	e323cd931e336f684b1e061f2a34e5a0N.exe	92
PID 4940 wrote to memory of 5008	4940	cmd.exe	95
PID 4940 wrote to memory of 5008	4940	cmd.exe	95
PID 4940 wrote to memory of 5008	4940	cmd.exe	95
PID 3332 wrote to memory of 3584	3332	e323cd931e336f684b1e061f2a34e5a0N.exe	96
PID 3332 wrote to memory of 3584	3332	e323cd931e336f684b1e061f2a34e5a0N.exe	96
PID 3332 wrote to memory of 3584	3332	e323cd931e336f684b1e061f2a34e5a0N.exe	96
PID 3584 wrote to memory of 2928	3584	csrsll.exe	100
PID 3584 wrote to memory of 2928	3584	csrsll.exe	100
PID 3584 wrote to memory of 2928	3584	csrsll.exe	100
PID 3584 wrote to memory of 2928	3584	csrsll.exe	100
PID 3584 wrote to memory of 2928	3584	csrsll.exe	100
PID 3584 wrote to memory of 2928	3584	csrsll.exe	100
PID 3584 wrote to memory of 2928	3584	csrsll.exe	100
PID 3584 wrote to memory of 2928	3584	csrsll.exe	100
PID 3584 wrote to memory of 1572	3584	csrsll.exe	101
PID 3584 wrote to memory of 1572	3584	csrsll.exe	101
PID 3584 wrote to memory of 1572	3584	csrsll.exe	101
PID 3584 wrote to memory of 1572	3584	csrsll.exe	101
PID 3584 wrote to memory of 1572	3584	csrsll.exe	101
PID 3584 wrote to memory of 1572	3584	csrsll.exe	101
PID 3584 wrote to memory of 1572	3584	csrsll.exe	101
PID 3584 wrote to memory of 1572	3584	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\e323cd931e336f684b1e061f2a34e5a0N.exe
"C:\Users\Admin\AppData\Local\Temp\e323cd931e336f684b1e061f2a34e5a0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3188
- C:\Users\Admin\AppData\Local\Temp\e323cd931e336f684b1e061f2a34e5a0N.exe
  "C:\Users\Admin\AppData\Local\Temp\e323cd931e336f684b1e061f2a34e5a0N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3332
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\RVHIF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4940
  - - 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:5008
- - 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:3584
  - - 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:2928
  - - 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:1572

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\RVHIF.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
d33bb9a1566a6c76601b204718a6dc34

SHA1
5a0edc13a4b211e438194dd50898210c326d6aa0

SHA256
b9f1b2b2a6e6299fb1f09ef007f858e2970a8ec30756de6cd7ad34a89b038d83

SHA512
9e9c6ddd790ec984df551bcd768b38c5aefc867195952697efefe08380a7700ba17df8bc7ee688ad87b1e54bfaf33f0ff7e7480f6ff3cde49054ec4c77dd51f7

Download Submit
memory/1572-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1572-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1572-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1572-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1572-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1572-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2928-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3188-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3188-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/3188-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3188-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3188-4-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/3188-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/3332-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3332-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3332-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3332-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3332-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3584-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3584-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3584-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3584-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads