modiloader | b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8

Analysis

max time kernel
58s
max time network
58s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-01-2025 19:34

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General

Target

b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe
Size

90KB
MD5

ade059a90fa4854962c0c45d24acb915
SHA1

7f3a1d1b7959a37de50963c79ec5eabe7e99e884
SHA256

b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8
SHA512

b17f1a15bf3d0a058ad24dc6af633b9b885acf82965a536c52a2c9453269762d781a7a6b6bc5f750bfb9d8a90d9c81b6f33d4b327d08ec053bb3739eff94cd60
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD7:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Z

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/5092-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5092-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5092-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5092-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe

Executes dropped EXE 3 IoCs

pid	Process
2200	csrsll.exe
2312	csrsll.exe
5092	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-1-5-21-3756129449-3121373848-4276368241-1000\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 748 set thread context of 1896	748	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	84
PID 2200 set thread context of 2312	2200	csrsll.exe	95
PID 2200 set thread context of 5092	2200	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/748-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/748-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1896-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1896-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/748-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1896-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c97-28.dat	upx
behavioral2/memory/1896-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2200-39-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2200-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5092-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2200-50-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5092-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5092-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1896-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5092-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5092-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2312-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5092-62-0x0000000000400000-0x0000000000414000-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	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.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 28 IoCs

description	pid	Process
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe
Token: SeDebugPrivilege	2312	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
748	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe
1896	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe
2200	csrsll.exe
2312	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 748 wrote to memory of 1896	748	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	84
PID 748 wrote to memory of 1896	748	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	84
PID 748 wrote to memory of 1896	748	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	84
PID 748 wrote to memory of 1896	748	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	84
PID 748 wrote to memory of 1896	748	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	84
PID 748 wrote to memory of 1896	748	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	84
PID 748 wrote to memory of 1896	748	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	84
PID 748 wrote to memory of 1896	748	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	84
PID 1896 wrote to memory of 4724	1896	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	85
PID 1896 wrote to memory of 4724	1896	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	85
PID 1896 wrote to memory of 4724	1896	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	85
PID 4724 wrote to memory of 220	4724	cmd.exe	88
PID 4724 wrote to memory of 220	4724	cmd.exe	88
PID 4724 wrote to memory of 220	4724	cmd.exe	88
PID 1896 wrote to memory of 2200	1896	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	89
PID 1896 wrote to memory of 2200	1896	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	89
PID 1896 wrote to memory of 2200	1896	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	89
PID 2200 wrote to memory of 2312	2200	csrsll.exe	95
PID 2200 wrote to memory of 2312	2200	csrsll.exe	95
PID 2200 wrote to memory of 2312	2200	csrsll.exe	95
PID 2200 wrote to memory of 2312	2200	csrsll.exe	95
PID 2200 wrote to memory of 2312	2200	csrsll.exe	95
PID 2200 wrote to memory of 2312	2200	csrsll.exe	95
PID 2200 wrote to memory of 2312	2200	csrsll.exe	95
PID 2200 wrote to memory of 2312	2200	csrsll.exe	95
PID 2200 wrote to memory of 5092	2200	csrsll.exe	96
PID 2200 wrote to memory of 5092	2200	csrsll.exe	96
PID 2200 wrote to memory of 5092	2200	csrsll.exe	96
PID 2200 wrote to memory of 5092	2200	csrsll.exe	96
PID 2200 wrote to memory of 5092	2200	csrsll.exe	96
PID 2200 wrote to memory of 5092	2200	csrsll.exe	96
PID 2200 wrote to memory of 5092	2200	csrsll.exe	96
PID 2200 wrote to memory of 5092	2200	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe
"C:\Users\Admin\AppData\Local\Temp\b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:748
- C:\Users\Admin\AppData\Local\Temp\b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe
  "C:\Users\Admin\AppData\Local\Temp\b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1896
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WMIHU.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4724
  - - 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:220
- - 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:2200
  - - 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:2312
  - - 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:5092

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\WMIHU.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
3ef921916f59a218c6fb882b48a3200a

SHA1
8bdc3a390f56a7701cc3363895c4c02be880b5bf

SHA256
33b97911eae6918be40418dd7717499b4662b00a285defff58cff8694900ac94

SHA512
24ee5ba945c1526b042e6f75fc9bb1c002e5dd85291f170b92b9a7a63f260331af6a264e2e87900fc73c8fdba28df27bd711d7f485f27ad2a0d11ff47a6ef370

Download Submit
memory/748-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/748-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/748-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/748-6-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/748-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/748-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1896-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1896-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1896-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1896-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1896-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1896-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2200-39-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2200-50-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2200-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2312-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5092-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5092-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5092-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5092-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5092-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5092-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads