modiloader | f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19/12/2024, 07:13

Sharing

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General

Target

f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe
Size

90KB
MD5

3b79cbbcc3d02c361301fc68bc884955
SHA1

ac6798332e93530f66403e0734a0b72afeb993f5
SHA256

f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6
SHA512

27c6a2dbc158584c5e24dd2d5dab53207f0a633ab26e879ca433fd7a52119e7db034e1e82f6b3d6d3ad6a6915cde01901f12d01848c8de6cbf860f0e01e1fc75
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDg:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE32

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/2580-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2580-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2580-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2580-63-0x0000000000400000-0x0000000000414000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe

Executes dropped EXE 3 IoCs

pid	Process
1372	csrsll.exe
3488	csrsll.exe
2580	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-1-5-21-940901362-3608833189-1915618603-1000\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 1264 set thread context of 2916	1264	f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe	84
PID 1372 set thread context of 3488	1372	csrsll.exe	100
PID 1372 set thread context of 2580	1372	csrsll.exe	101

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1264-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1264-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2916-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2916-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1264-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2916-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b9b-29.dat	upx
behavioral2/memory/2916-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1372-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1372-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2580-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2580-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2580-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2580-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2580-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1372-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2916-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3488-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2580-63-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1264	f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe
2916	f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe
1372	csrsll.exe
3488	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1264 wrote to memory of 2916	1264	f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe	84
PID 1264 wrote to memory of 2916	1264	f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe	84
PID 1264 wrote to memory of 2916	1264	f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe	84
PID 1264 wrote to memory of 2916	1264	f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe	84
PID 1264 wrote to memory of 2916	1264	f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe	84
PID 1264 wrote to memory of 2916	1264	f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe	84
PID 1264 wrote to memory of 2916	1264	f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe	84
PID 1264 wrote to memory of 2916	1264	f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe	84
PID 2916 wrote to memory of 4700	2916	f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe	87
PID 2916 wrote to memory of 4700	2916	f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe	87
PID 2916 wrote to memory of 4700	2916	f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe	87
PID 4700 wrote to memory of 2212	4700	cmd.exe	92
PID 4700 wrote to memory of 2212	4700	cmd.exe	92
PID 4700 wrote to memory of 2212	4700	cmd.exe	92
PID 2916 wrote to memory of 1372	2916	f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe	94
PID 2916 wrote to memory of 1372	2916	f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe	94
PID 2916 wrote to memory of 1372	2916	f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe	94
PID 1372 wrote to memory of 3488	1372	csrsll.exe	100
PID 1372 wrote to memory of 3488	1372	csrsll.exe	100
PID 1372 wrote to memory of 3488	1372	csrsll.exe	100
PID 1372 wrote to memory of 3488	1372	csrsll.exe	100
PID 1372 wrote to memory of 3488	1372	csrsll.exe	100
PID 1372 wrote to memory of 3488	1372	csrsll.exe	100
PID 1372 wrote to memory of 3488	1372	csrsll.exe	100
PID 1372 wrote to memory of 3488	1372	csrsll.exe	100
PID 1372 wrote to memory of 2580	1372	csrsll.exe	101
PID 1372 wrote to memory of 2580	1372	csrsll.exe	101
PID 1372 wrote to memory of 2580	1372	csrsll.exe	101
PID 1372 wrote to memory of 2580	1372	csrsll.exe	101
PID 1372 wrote to memory of 2580	1372	csrsll.exe	101
PID 1372 wrote to memory of 2580	1372	csrsll.exe	101
PID 1372 wrote to memory of 2580	1372	csrsll.exe	101
PID 1372 wrote to memory of 2580	1372	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe
"C:\Users\Admin\AppData\Local\Temp\f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1264
- C:\Users\Admin\AppData\Local\Temp\f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe
  "C:\Users\Admin\AppData\Local\Temp\f97951a510cf3d80248676079a5d5ba501975ee56f7ab672686fd23ffe2809b6.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2916
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\APQOW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4700
  - - 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:2212
- - 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:1372
  - - 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:3488
  - - 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:2580

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\APQOW.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
b5c193ad748678cdf4526b61261b047f

SHA1
b3082936c163781411fd4ee3e6e65719758773f8

SHA256
51f6a00d00784a6c75a3682580603144349f57f1c34b093266ce507c49ba39f9

SHA512
e4960b6018d4ff0859f0e8c4e6c3d87261f075fd5b7902b04b82892fd0205452510244f9216d26267e7600082c42b175c1da822daaf65d784ae196b4f1529628

Download Submit
memory/1264-3-0x00000000022D0000-0x00000000022D2000-memory.dmp

Filesize
8KB

Download
memory/1264-4-0x00000000022E0000-0x00000000022E2000-memory.dmp

Filesize
8KB

Download
memory/1264-6-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/1264-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1264-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1264-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1372-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1372-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1372-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2580-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2580-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2580-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2580-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2580-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2580-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2916-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2916-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2916-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2916-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2916-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2916-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3488-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads