modiloader | 3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 01:40

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe
Size

90KB
MD5

817b15fe10208496e6079d979dbb4e9f
SHA1

af0b6520daf2d0c523e0241d4e817f7c8c6f5893
SHA256

3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af
SHA512

1dbdf9c8f85bdce54a13802ceae6663bd3fbb73476acae7d4f01db37641c94f236ed592b9d494ddb02dc967208ba3009d97b2be31ddb0b8dac7ad502739a1790
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDW:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3U

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/4672-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4672-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4672-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4672-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe

Executes dropped EXE 3 IoCs

pid	Process
2648	csrsll.exe
3436	csrsll.exe
4672	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-1-5-21-3442511616-637977696-3186306149-1000\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 404 set thread context of 3428	404	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	82
PID 2648 set thread context of 3436	2648	csrsll.exe	95
PID 2648 set thread context of 4672	2648	csrsll.exe	96

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral2/memory/404-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/404-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3428-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3428-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3428-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/404-16-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b85-30.dat	upx
behavioral2/memory/3428-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2648-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4672-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4672-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4672-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2648-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4672-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4672-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3428-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3436-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4672-62-0x0000000000400000-0x0000000000414000-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	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.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	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
404	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe
3428	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe
2648	csrsll.exe
3436	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 404 wrote to memory of 3428	404	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	82
PID 404 wrote to memory of 3428	404	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	82
PID 404 wrote to memory of 3428	404	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	82
PID 404 wrote to memory of 3428	404	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	82
PID 404 wrote to memory of 3428	404	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	82
PID 404 wrote to memory of 3428	404	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	82
PID 404 wrote to memory of 3428	404	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	82
PID 404 wrote to memory of 3428	404	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	82
PID 3428 wrote to memory of 2072	3428	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	83
PID 3428 wrote to memory of 2072	3428	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	83
PID 3428 wrote to memory of 2072	3428	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	83
PID 2072 wrote to memory of 4272	2072	cmd.exe	86
PID 2072 wrote to memory of 4272	2072	cmd.exe	86
PID 2072 wrote to memory of 4272	2072	cmd.exe	86
PID 3428 wrote to memory of 2648	3428	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	87
PID 3428 wrote to memory of 2648	3428	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	87
PID 3428 wrote to memory of 2648	3428	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	87
PID 2648 wrote to memory of 3436	2648	csrsll.exe	95
PID 2648 wrote to memory of 3436	2648	csrsll.exe	95
PID 2648 wrote to memory of 3436	2648	csrsll.exe	95
PID 2648 wrote to memory of 3436	2648	csrsll.exe	95
PID 2648 wrote to memory of 3436	2648	csrsll.exe	95
PID 2648 wrote to memory of 3436	2648	csrsll.exe	95
PID 2648 wrote to memory of 3436	2648	csrsll.exe	95
PID 2648 wrote to memory of 3436	2648	csrsll.exe	95
PID 2648 wrote to memory of 4672	2648	csrsll.exe	96
PID 2648 wrote to memory of 4672	2648	csrsll.exe	96
PID 2648 wrote to memory of 4672	2648	csrsll.exe	96
PID 2648 wrote to memory of 4672	2648	csrsll.exe	96
PID 2648 wrote to memory of 4672	2648	csrsll.exe	96
PID 2648 wrote to memory of 4672	2648	csrsll.exe	96
PID 2648 wrote to memory of 4672	2648	csrsll.exe	96
PID 2648 wrote to memory of 4672	2648	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe
"C:\Users\Admin\AppData\Local\Temp\3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:404
- C:\Users\Admin\AppData\Local\Temp\3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe
  "C:\Users\Admin\AppData\Local\Temp\3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3428
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YKTKT.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2072
  - - 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:4272
- - 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:2648
  - - 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:3436
  - - 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:4672

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\YKTKT.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
0f9cc84fd26b3ad9f3d65f0fccca3c37

SHA1
059d6256be737d7a29524173260a1e2d2ff13e16

SHA256
b8aa33deb7257d44eba8ef554f54e670580dc5fe8157eab0338c078936c66852

SHA512
18e2e1511556dfc9e5bdabaa794f0f961ad5289c79eca8f62297d979063454736fead3097729ddbe470f72f1359cf037389676e4aebe8813ba4027a1775c1531

Download Submit
memory/404-3-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/404-4-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/404-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/404-6-0x0000000002340000-0x0000000002342000-memory.dmp

Filesize
8KB

Download
memory/404-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/404-16-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2648-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2648-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3428-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3428-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3428-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3428-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3428-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3428-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3436-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4672-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4672-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4672-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4672-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4672-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4672-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads