modiloader | 9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39

Analysis

max time kernel
120s
max time network
116s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-12-2024 03:30

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General

Target

9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe
Size

90KB
MD5

6d0715d9d7521646be7eacfff0d377da
SHA1

2d9fde068755b704d6687eb9fe3d0b157fabda87
SHA256

9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39
SHA512

7998e4bf2e22b5512483fb28ae91b526e21b301ae507aedd3c4804b9e83a5c9623b01a354176ed98e9ddf2b56aede9061cbae4253df8e9df2954d9ccce2d6f39
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDk:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3q

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/2096-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2096-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2096-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2096-62-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe

Executes dropped EXE 3 IoCs

pid	Process
5004	csrsll.exe
2440	csrsll.exe
2096	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-1-5-21-493223053-2004649691-1575712786-1000\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 2304 set thread context of 1668	2304	9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe	85
PID 5004 set thread context of 2440	5004	csrsll.exe	99
PID 5004 set thread context of 2096	5004	csrsll.exe	100

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2304-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2304-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1668-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1668-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1668-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2304-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000d000000023a72-29.dat	upx
behavioral2/memory/1668-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5004-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5004-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2096-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2096-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2096-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2096-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2096-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5004-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1668-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2440-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2096-62-0x0000000000400000-0x0000000000414000-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	9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.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	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2304	9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe
1668	9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe
5004	csrsll.exe
2440	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 1668	2304	9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe	85
PID 2304 wrote to memory of 1668	2304	9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe	85
PID 2304 wrote to memory of 1668	2304	9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe	85
PID 2304 wrote to memory of 1668	2304	9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe	85
PID 2304 wrote to memory of 1668	2304	9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe	85
PID 2304 wrote to memory of 1668	2304	9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe	85
PID 2304 wrote to memory of 1668	2304	9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe	85
PID 2304 wrote to memory of 1668	2304	9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe	85
PID 1668 wrote to memory of 4576	1668	9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe	86
PID 1668 wrote to memory of 4576	1668	9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe	86
PID 1668 wrote to memory of 4576	1668	9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe	86
PID 4576 wrote to memory of 4808	4576	cmd.exe	90
PID 4576 wrote to memory of 4808	4576	cmd.exe	90
PID 4576 wrote to memory of 4808	4576	cmd.exe	90
PID 1668 wrote to memory of 5004	1668	9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe	91
PID 1668 wrote to memory of 5004	1668	9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe	91
PID 1668 wrote to memory of 5004	1668	9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe	91
PID 5004 wrote to memory of 2440	5004	csrsll.exe	99
PID 5004 wrote to memory of 2440	5004	csrsll.exe	99
PID 5004 wrote to memory of 2440	5004	csrsll.exe	99
PID 5004 wrote to memory of 2440	5004	csrsll.exe	99
PID 5004 wrote to memory of 2440	5004	csrsll.exe	99
PID 5004 wrote to memory of 2440	5004	csrsll.exe	99
PID 5004 wrote to memory of 2440	5004	csrsll.exe	99
PID 5004 wrote to memory of 2440	5004	csrsll.exe	99
PID 5004 wrote to memory of 2096	5004	csrsll.exe	100
PID 5004 wrote to memory of 2096	5004	csrsll.exe	100
PID 5004 wrote to memory of 2096	5004	csrsll.exe	100
PID 5004 wrote to memory of 2096	5004	csrsll.exe	100
PID 5004 wrote to memory of 2096	5004	csrsll.exe	100
PID 5004 wrote to memory of 2096	5004	csrsll.exe	100
PID 5004 wrote to memory of 2096	5004	csrsll.exe	100
PID 5004 wrote to memory of 2096	5004	csrsll.exe	100

C:\Users\Admin\AppData\Local\Temp\9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe
"C:\Users\Admin\AppData\Local\Temp\9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Users\Admin\AppData\Local\Temp\9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe
  "C:\Users\Admin\AppData\Local\Temp\9df5aa44491489d1e47f15746089e6431442af9255bcebe3cb40f8bd7548ae39.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1668
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BPYPD.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4576
  - - 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:4808
- - 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:5004
  - - 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:2440
  - - 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:2096

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\BPYPD.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
f2fddf5630e111d66c37324679f3c076

SHA1
eca24f1f234b7c021c42f948b9678f4993ed761a

SHA256
d4e985ab26b50555588de1d57ba0bb9f83b78aabd54e84a4300711373bd69ec7

SHA512
7b587d86a8a0d595cbf09973559ba89459cad0adeaa65e42f775259e18ad047f102a28e53ab49da2802e27445719d6c941daa4993866f55f5a8ec7c2850ff5b1

Download Submit
memory/1668-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1668-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1668-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1668-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1668-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1668-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2096-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2096-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2096-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2096-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2096-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2096-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2304-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2304-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2304-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2304-4-0x0000000002A30000-0x0000000002A32000-memory.dmp

Filesize
8KB

Download
memory/2304-3-0x0000000002A20000-0x0000000002A22000-memory.dmp

Filesize
8KB

Download
memory/2304-6-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/2440-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5004-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5004-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5004-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads