modiloader | 0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-01-2025 20:16

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General

Target

0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe
Size

90KB
MD5

4d75201a0e3fa22266ba896250c2bbc8
SHA1

0981f1045f15b12ea4168e94c18dbd6276a294aa
SHA256

0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6
SHA512

73eb740b505cd10df648b126f1e3bfe48cc25d968adb15ec796705b88efc5dbc405b8f9180848208725db4039cccce9a9a3aba818e422c711740292a68ad1b46
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDp:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3P

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/1964-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1964-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1964-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1964-61-0x0000000000400000-0x0000000000414000-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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe

Executes dropped EXE 3 IoCs

pid	Process
4140	csrsll.exe
220	csrsll.exe
1964	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-1-5-21-4089630652-1596403869-279772308-1000\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 2568 set thread context of 4228	2568	0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe	84
PID 4140 set thread context of 220	4140	csrsll.exe	95
PID 4140 set thread context of 1964	4140	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2568-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2568-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4228-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4228-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4228-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2568-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023ca1-29.dat	upx
behavioral2/memory/4228-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4140-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4140-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1964-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1964-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4140-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1964-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1964-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1964-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4228-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/220-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1964-61-0x0000000000400000-0x0000000000414000-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	0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe
Token: SeDebugPrivilege	220	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2568	0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe
4228	0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe
4140	csrsll.exe
220	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 4228	2568	0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe	84
PID 2568 wrote to memory of 4228	2568	0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe	84
PID 2568 wrote to memory of 4228	2568	0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe	84
PID 2568 wrote to memory of 4228	2568	0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe	84
PID 2568 wrote to memory of 4228	2568	0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe	84
PID 2568 wrote to memory of 4228	2568	0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe	84
PID 2568 wrote to memory of 4228	2568	0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe	84
PID 2568 wrote to memory of 4228	2568	0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe	84
PID 4228 wrote to memory of 4556	4228	0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe	87
PID 4228 wrote to memory of 4556	4228	0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe	87
PID 4228 wrote to memory of 4556	4228	0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe	87
PID 4556 wrote to memory of 244	4556	cmd.exe	90
PID 4556 wrote to memory of 244	4556	cmd.exe	90
PID 4556 wrote to memory of 244	4556	cmd.exe	90
PID 4228 wrote to memory of 4140	4228	0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe	91
PID 4228 wrote to memory of 4140	4228	0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe	91
PID 4228 wrote to memory of 4140	4228	0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe	91
PID 4140 wrote to memory of 220	4140	csrsll.exe	95
PID 4140 wrote to memory of 220	4140	csrsll.exe	95
PID 4140 wrote to memory of 220	4140	csrsll.exe	95
PID 4140 wrote to memory of 220	4140	csrsll.exe	95
PID 4140 wrote to memory of 220	4140	csrsll.exe	95
PID 4140 wrote to memory of 220	4140	csrsll.exe	95
PID 4140 wrote to memory of 220	4140	csrsll.exe	95
PID 4140 wrote to memory of 220	4140	csrsll.exe	95
PID 4140 wrote to memory of 1964	4140	csrsll.exe	96
PID 4140 wrote to memory of 1964	4140	csrsll.exe	96
PID 4140 wrote to memory of 1964	4140	csrsll.exe	96
PID 4140 wrote to memory of 1964	4140	csrsll.exe	96
PID 4140 wrote to memory of 1964	4140	csrsll.exe	96
PID 4140 wrote to memory of 1964	4140	csrsll.exe	96
PID 4140 wrote to memory of 1964	4140	csrsll.exe	96
PID 4140 wrote to memory of 1964	4140	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe
"C:\Users\Admin\AppData\Local\Temp\0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2568
- C:\Users\Admin\AppData\Local\Temp\0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe
  "C:\Users\Admin\AppData\Local\Temp\0f28a9f0c4b8857a4cf8cd24f9d4a2b351e55712aa84905d5731b9dc08dc91f6.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4228
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JSOJS.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4556
  - - 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:244
- - 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:4140
  - - 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:220
  - - 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:1964

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

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
8e50e8ed08f0f29c4e97460a34353130

SHA1
70ff57d391afbaa6cd8581d6da08bd4d59c68323

SHA256
d76f6bb3c6a43ce092627504f1d930b2b606c42c4d3d7887670628c56399bdaa

SHA512
0b85e7ea0d3eacc4c9e3383c82f52363705ae6573350afb3f07b9be02578e9550565210a4652969102771082e027a51ea9644c72b8a7c4fce488a18b73771799

Download Submit
memory/220-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1964-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1964-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1964-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1964-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1964-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1964-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2568-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2568-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/2568-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2568-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/2568-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/2568-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4140-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4140-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4140-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4228-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4228-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4228-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4228-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4228-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads