modiloader | ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d

Analysis

max time kernel
119s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2024 16:36

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General

Target

ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe
Size

90KB
MD5

9ceb46b464cf97b29bb2ecfb498c116a
SHA1

c04e2025639675f280302528ef009ae90c6284a9
SHA256

ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d
SHA512

aba924a1e89c19853cbced9d478cf2fa672bedacbaa719cb9c91b11882b07b8484d554bff34d41eb9f1dd27b042d44a256c8f5beafa7de7f173ce5b2897b041b
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDf:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3t

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/5016-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5016-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5016-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5016-63-0x0000000000400000-0x0000000000414000-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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe

Executes dropped EXE 3 IoCs

pid	Process
4596	csrsll.exe
4312	csrsll.exe
5016	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-1-5-21-3350944739-639801879-157714471-1000\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 4668 set thread context of 3208	4668	ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe	83
PID 4596 set thread context of 4312	4596	csrsll.exe	101
PID 4596 set thread context of 5016	4596	csrsll.exe	102

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4668-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4668-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3208-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3208-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4668-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3208-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3208-14-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c9f-30.dat	upx
behavioral2/memory/3208-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4596-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4596-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5016-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5016-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5016-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5016-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5016-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4596-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3208-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4312-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5016-63-0x0000000000400000-0x0000000000414000-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	ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.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	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe
Token: SeDebugPrivilege	4312	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4668	ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe
3208	ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe
4596	csrsll.exe
4312	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4668 wrote to memory of 3208	4668	ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe	83
PID 4668 wrote to memory of 3208	4668	ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe	83
PID 4668 wrote to memory of 3208	4668	ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe	83
PID 4668 wrote to memory of 3208	4668	ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe	83
PID 4668 wrote to memory of 3208	4668	ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe	83
PID 4668 wrote to memory of 3208	4668	ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe	83
PID 4668 wrote to memory of 3208	4668	ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe	83
PID 4668 wrote to memory of 3208	4668	ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe	83
PID 3208 wrote to memory of 2428	3208	ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe	86
PID 3208 wrote to memory of 2428	3208	ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe	86
PID 3208 wrote to memory of 2428	3208	ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe	86
PID 2428 wrote to memory of 4236	2428	cmd.exe	90
PID 2428 wrote to memory of 4236	2428	cmd.exe	90
PID 2428 wrote to memory of 4236	2428	cmd.exe	90
PID 3208 wrote to memory of 4596	3208	ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe	91
PID 3208 wrote to memory of 4596	3208	ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe	91
PID 3208 wrote to memory of 4596	3208	ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe	91
PID 4596 wrote to memory of 4312	4596	csrsll.exe	101
PID 4596 wrote to memory of 4312	4596	csrsll.exe	101
PID 4596 wrote to memory of 4312	4596	csrsll.exe	101
PID 4596 wrote to memory of 4312	4596	csrsll.exe	101
PID 4596 wrote to memory of 4312	4596	csrsll.exe	101
PID 4596 wrote to memory of 4312	4596	csrsll.exe	101
PID 4596 wrote to memory of 4312	4596	csrsll.exe	101
PID 4596 wrote to memory of 4312	4596	csrsll.exe	101
PID 4596 wrote to memory of 5016	4596	csrsll.exe	102
PID 4596 wrote to memory of 5016	4596	csrsll.exe	102
PID 4596 wrote to memory of 5016	4596	csrsll.exe	102
PID 4596 wrote to memory of 5016	4596	csrsll.exe	102
PID 4596 wrote to memory of 5016	4596	csrsll.exe	102
PID 4596 wrote to memory of 5016	4596	csrsll.exe	102
PID 4596 wrote to memory of 5016	4596	csrsll.exe	102
PID 4596 wrote to memory of 5016	4596	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe
"C:\Users\Admin\AppData\Local\Temp\ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4668
- C:\Users\Admin\AppData\Local\Temp\ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe
  "C:\Users\Admin\AppData\Local\Temp\ee735f435ca3381538b259516f686fbed251270fcb2d14541052a6126f461e8d.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3208
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\SAONH.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2428
  - - 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:4236
- - 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:4596
  - - 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:4312
  - - 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:5016

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\SAONH.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
6c81b764fdad28d1a7589ae8733499ea

SHA1
716707939121e1e6f713b5e601e44e84b7bbe894

SHA256
0f03dc41988b9091e0c16c59182f1918cd7b53e4e97cce45409840aaf319debe

SHA512
2c64bb256d221e8b34c18b853cfdf228dbb195c34180bd7b5ff34deea94ac7363fe254a8633d7112a3ba32fa6060e7d8dce7b42483888831e381660a11dd44b0

Download Submit
memory/3208-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3208-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3208-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3208-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3208-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3208-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4312-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4596-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4596-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4596-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4668-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4668-4-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/4668-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4668-6-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/4668-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4668-7-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/4668-3-0x0000000002A30000-0x0000000002A32000-memory.dmp

Filesize
8KB

Download
memory/5016-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5016-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5016-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5016-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5016-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5016-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads