modiloader | 13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bba

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
01/12/2024, 13:04

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General

Target

13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe
Size

90KB
MD5

d5906508933eddad431cd1b0964d4d40
SHA1

c5a2f2a88882b8450a2880fbe66c695049ec28e0
SHA256

13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bba
SHA512

58ed9dafaaa54c1435f9246e4d5bcd1de01570a8d92d3f945aaad3b75831aeb0264c695ac7e097e77c4c495dda72cca6acfcfdbbd32a35b8c8fb7da041b70d76
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDH:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE35

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/3768-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3768-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3768-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3768-62-0x0000000000400000-0x0000000000414000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe

Executes dropped EXE 3 IoCs

pid	Process
228	csrsll.exe
4472	csrsll.exe
3768	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-1-5-21-2437139445-1151884604-3026847218-1000\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 3528 set thread context of 4296	3528	13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe	84
PID 228 set thread context of 4472	228	csrsll.exe	98
PID 228 set thread context of 3768	228	csrsll.exe	99

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3528-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3528-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4296-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4296-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3528-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4296-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b88-29.dat	upx
behavioral2/memory/228-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4296-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/228-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/228-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3768-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3768-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3768-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3768-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/228-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3768-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4296-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4472-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3768-62-0x0000000000400000-0x0000000000414000-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	13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.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	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe
Token: SeDebugPrivilege	4472	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3528	13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe
4296	13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe
228	csrsll.exe
4472	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3528 wrote to memory of 4296	3528	13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe	84
PID 3528 wrote to memory of 4296	3528	13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe	84
PID 3528 wrote to memory of 4296	3528	13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe	84
PID 3528 wrote to memory of 4296	3528	13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe	84
PID 3528 wrote to memory of 4296	3528	13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe	84
PID 3528 wrote to memory of 4296	3528	13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe	84
PID 3528 wrote to memory of 4296	3528	13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe	84
PID 3528 wrote to memory of 4296	3528	13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe	84
PID 4296 wrote to memory of 2424	4296	13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe	85
PID 4296 wrote to memory of 2424	4296	13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe	85
PID 4296 wrote to memory of 2424	4296	13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe	85
PID 2424 wrote to memory of 1580	2424	cmd.exe	89
PID 2424 wrote to memory of 1580	2424	cmd.exe	89
PID 2424 wrote to memory of 1580	2424	cmd.exe	89
PID 4296 wrote to memory of 228	4296	13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe	90
PID 4296 wrote to memory of 228	4296	13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe	90
PID 4296 wrote to memory of 228	4296	13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe	90
PID 228 wrote to memory of 4472	228	csrsll.exe	98
PID 228 wrote to memory of 4472	228	csrsll.exe	98
PID 228 wrote to memory of 4472	228	csrsll.exe	98
PID 228 wrote to memory of 4472	228	csrsll.exe	98
PID 228 wrote to memory of 4472	228	csrsll.exe	98
PID 228 wrote to memory of 4472	228	csrsll.exe	98
PID 228 wrote to memory of 4472	228	csrsll.exe	98
PID 228 wrote to memory of 4472	228	csrsll.exe	98
PID 228 wrote to memory of 3768	228	csrsll.exe	99
PID 228 wrote to memory of 3768	228	csrsll.exe	99
PID 228 wrote to memory of 3768	228	csrsll.exe	99
PID 228 wrote to memory of 3768	228	csrsll.exe	99
PID 228 wrote to memory of 3768	228	csrsll.exe	99
PID 228 wrote to memory of 3768	228	csrsll.exe	99
PID 228 wrote to memory of 3768	228	csrsll.exe	99
PID 228 wrote to memory of 3768	228	csrsll.exe	99

C:\Users\Admin\AppData\Local\Temp\13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe
"C:\Users\Admin\AppData\Local\Temp\13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3528
- C:\Users\Admin\AppData\Local\Temp\13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe
  "C:\Users\Admin\AppData\Local\Temp\13e8f93c18a65e90771041b94e89b3db7a4cb0136c7ebd7eb90ca4659eff0bbaN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4296
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\SOCOX.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2424
  - - 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:1580
- - 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:228
  - - 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:4472
  - - 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:3768

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\SOCOX.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
fbb3149cc5e8afa2da64ef7d4ad643d1

SHA1
0f9f30cd7a1aaa3ac503d2784a2dd07990e9c0e6

SHA256
566f3c8dffe26556dc29bbbdc20f93245b77f9f32ec80592ef2f610fefd65990

SHA512
0a68724a9f9f96a88b135038fa8e7dfdc3ae43c7835023c6a37f2c32a47ee97a38251708f4da47cba8462f84ac2a6350c60d3597ceed82d7985489f37280b566

Download Submit
memory/228-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/228-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/228-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/228-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3528-5-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/3528-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3528-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3528-6-0x0000000002A90000-0x0000000002A92000-memory.dmp

Filesize
8KB

Download
memory/3528-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3528-3-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/3768-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3768-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3768-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3768-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3768-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3768-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4296-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4296-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4296-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4296-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4296-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4296-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4472-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads