modiloader | 68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-01-2025 23:47

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General

Target

68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe
Size

90KB
MD5

d8bad2a4f21ae5311d8a8b84ccaf9c75
SHA1

0d76f571fd274af9f29946889cb378240abb5687
SHA256

68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96
SHA512

7b9e256eca15823ebcae6f92fd1a5c63715c9ce698447d4a368f2aae9a631d995e90ed548aadb6b4343f2b82f7c280cefd49622c0df6a8cee0e34f33a1be17ac
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDY: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 4 IoCs

resource	yara_rule
behavioral2/memory/840-59-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/840-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/840-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/840-64-0x0000000000400000-0x0000000000414000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe

Executes dropped EXE 3 IoCs

pid	Process
4004	csrsll.exe
2420	csrsll.exe
840	csrsll.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-1-5-21-3227495264-2217614367-4027411560-1000\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 1728 set thread context of 3416	1728	68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe	85
PID 4004 set thread context of 2420	4004	csrsll.exe	94
PID 4004 set thread context of 840	4004	csrsll.exe	95

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1728-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1728-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3416-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3416-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3416-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1728-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b38-30.dat	upx
behavioral2/memory/3416-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4004-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4004-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/840-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/840-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/840-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/840-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/840-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4004-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3416-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2420-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/840-64-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe
Token: SeDebugPrivilege	2420	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1728	68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe
3416	68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe
4004	csrsll.exe
2420	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 3416	1728	68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe	85
PID 1728 wrote to memory of 3416	1728	68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe	85
PID 1728 wrote to memory of 3416	1728	68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe	85
PID 1728 wrote to memory of 3416	1728	68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe	85
PID 1728 wrote to memory of 3416	1728	68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe	85
PID 1728 wrote to memory of 3416	1728	68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe	85
PID 1728 wrote to memory of 3416	1728	68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe	85
PID 1728 wrote to memory of 3416	1728	68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe	85
PID 3416 wrote to memory of 4000	3416	68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe	87
PID 3416 wrote to memory of 4000	3416	68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe	87
PID 3416 wrote to memory of 4000	3416	68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe	87
PID 4000 wrote to memory of 1284	4000	cmd.exe	90
PID 4000 wrote to memory of 1284	4000	cmd.exe	90
PID 4000 wrote to memory of 1284	4000	cmd.exe	90
PID 3416 wrote to memory of 4004	3416	68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe	91
PID 3416 wrote to memory of 4004	3416	68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe	91
PID 3416 wrote to memory of 4004	3416	68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe	91
PID 4004 wrote to memory of 2420	4004	csrsll.exe	94
PID 4004 wrote to memory of 2420	4004	csrsll.exe	94
PID 4004 wrote to memory of 2420	4004	csrsll.exe	94
PID 4004 wrote to memory of 2420	4004	csrsll.exe	94
PID 4004 wrote to memory of 2420	4004	csrsll.exe	94
PID 4004 wrote to memory of 2420	4004	csrsll.exe	94
PID 4004 wrote to memory of 2420	4004	csrsll.exe	94
PID 4004 wrote to memory of 2420	4004	csrsll.exe	94
PID 4004 wrote to memory of 840	4004	csrsll.exe	95
PID 4004 wrote to memory of 840	4004	csrsll.exe	95
PID 4004 wrote to memory of 840	4004	csrsll.exe	95
PID 4004 wrote to memory of 840	4004	csrsll.exe	95
PID 4004 wrote to memory of 840	4004	csrsll.exe	95
PID 4004 wrote to memory of 840	4004	csrsll.exe	95
PID 4004 wrote to memory of 840	4004	csrsll.exe	95
PID 4004 wrote to memory of 840	4004	csrsll.exe	95

C:\Users\Admin\AppData\Local\Temp\68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe
"C:\Users\Admin\AppData\Local\Temp\68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Users\Admin\AppData\Local\Temp\68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe
  "C:\Users\Admin\AppData\Local\Temp\68b7fac33040fdfc0f2897ba9e0dd80492417796fe07803df623f6130823bd96.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3416
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KJWDM.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4000
  - - 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:1284
- - 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:4004
  - - 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:2420
  - - 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:840

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\KJWDM.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
6f9c95f49788eac84385282f5eb5186a

SHA1
995e9fe7731dd199f1eec5cac7cfa33e0dd3dfd5

SHA256
e39dec91f7ecea972164c28c9c7be38b0e712e56c5a9ca48310e615a4b20c4c3

SHA512
9b0382de499f84292aa0437bc9381e0b24387cfdca5487b7d6d8bfb23063777bdfa071b6d1313ee13dd85442d722e7110ee6833a6ee5850d935fcbbcfd133c77

Download Submit
memory/840-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/840-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/840-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/840-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/840-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/840-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1728-6-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/1728-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1728-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1728-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1728-4-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/1728-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/2420-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3416-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3416-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3416-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3416-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3416-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3416-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4004-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4004-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4004-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads