modiloader | 5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415

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
22-12-2024 22:48

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General

Target

5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe
Size

326KB
MD5

674e49af94116d34379a11b4b4a35e4c
SHA1

1f74db608934b395a967817549ef8442c0c6af78
SHA256

5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415
SHA512

79292a33e21c398e08a2d94cef9cd8490495be6b64e2fc313494f59005cf859bf1730a47d99d15f247b5e18fd58e070909e26204b48155f55941c30f02dea432
SSDEEP

3072:ce2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XVo:csxD5cwohO+O1sVG0/pZ6iPC8N

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/368-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/368-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/368-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/368-59-0x0000000000400000-0x0000000000414000-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	5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe

Executes dropped EXE 3 IoCs

pid	Process
2324	csrsll.exe
3736	csrsll.exe
368	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 4964 set thread context of 5000	4964	5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe	82
PID 2324 set thread context of 3736	2324	csrsll.exe	88
PID 2324 set thread context of 368	2324	csrsll.exe	89

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4964-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/5000-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5000-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4964-5-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/5000-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4964-13-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/files/0x0008000000023cad-28.dat	upx
behavioral2/memory/5000-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2324-39-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/2324-40-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/368-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/368-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5000-53-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2324-49-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/368-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/368-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/368-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3736-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/368-59-0x0000000000400000-0x0000000000414000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4964	5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe
5000	5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe
2324	csrsll.exe
3736	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4964 wrote to memory of 5000	4964	5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe	82
PID 4964 wrote to memory of 5000	4964	5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe	82
PID 4964 wrote to memory of 5000	4964	5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe	82
PID 4964 wrote to memory of 5000	4964	5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe	82
PID 4964 wrote to memory of 5000	4964	5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe	82
PID 4964 wrote to memory of 5000	4964	5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe	82
PID 4964 wrote to memory of 5000	4964	5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe	82
PID 4964 wrote to memory of 5000	4964	5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe	82
PID 5000 wrote to memory of 900	5000	5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe	83
PID 5000 wrote to memory of 900	5000	5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe	83
PID 5000 wrote to memory of 900	5000	5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe	83
PID 900 wrote to memory of 1308	900	cmd.exe	86
PID 900 wrote to memory of 1308	900	cmd.exe	86
PID 900 wrote to memory of 1308	900	cmd.exe	86
PID 5000 wrote to memory of 2324	5000	5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe	87
PID 5000 wrote to memory of 2324	5000	5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe	87
PID 5000 wrote to memory of 2324	5000	5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe	87
PID 2324 wrote to memory of 3736	2324	csrsll.exe	88
PID 2324 wrote to memory of 3736	2324	csrsll.exe	88
PID 2324 wrote to memory of 3736	2324	csrsll.exe	88
PID 2324 wrote to memory of 3736	2324	csrsll.exe	88
PID 2324 wrote to memory of 3736	2324	csrsll.exe	88
PID 2324 wrote to memory of 3736	2324	csrsll.exe	88
PID 2324 wrote to memory of 3736	2324	csrsll.exe	88
PID 2324 wrote to memory of 3736	2324	csrsll.exe	88
PID 2324 wrote to memory of 368	2324	csrsll.exe	89
PID 2324 wrote to memory of 368	2324	csrsll.exe	89
PID 2324 wrote to memory of 368	2324	csrsll.exe	89
PID 2324 wrote to memory of 368	2324	csrsll.exe	89
PID 2324 wrote to memory of 368	2324	csrsll.exe	89
PID 2324 wrote to memory of 368	2324	csrsll.exe	89
PID 2324 wrote to memory of 368	2324	csrsll.exe	89
PID 2324 wrote to memory of 368	2324	csrsll.exe	89

C:\Users\Admin\AppData\Local\Temp\5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe
"C:\Users\Admin\AppData\Local\Temp\5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4964
- C:\Users\Admin\AppData\Local\Temp\5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe
  "C:\Users\Admin\AppData\Local\Temp\5b92220c9a194b5eeb32f114b652d0ded599b6ece4dc88ff4ec923f206c02415.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5000
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\OPMUG.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:900
  - - 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:1308
- - 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:2324
  - - 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:3736
  - - 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:368

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\OPMUG.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
326KB

MD5
22bc997d66c060a89b46402a86695723

SHA1
9005953caaf95757e4b06e8289fdef981400176c

SHA256
2430834346f3b8603268cdc20a7fd10fd97944fa23523e6a0f0c02be5d6a1051

SHA512
cb77806530783d4f6b72c6ca763fe32ae61a2dc94bfd8e2db76c000a2ee440abc68d2b57cf77f8183abea58a1f6c48aabaa754d1009d24084f925515d2257b40

Download Submit
memory/368-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/368-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/368-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/368-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/368-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/368-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2324-40-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2324-39-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2324-49-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3736-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4964-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4964-13-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4964-4-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/4964-5-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4964-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/4964-6-0x0000000002BA0000-0x0000000002BA2000-memory.dmp

Filesize
8KB

Download
memory/5000-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5000-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5000-53-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5000-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5000-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads