modiloader | bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531

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
25/11/2024, 04:21

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General

Target

bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe
Size

90KB
MD5

c6b681106fce190121f6cbbc7b370155
SHA1

af9c5e0d13b7e4fa3e02fea8c3f2baaa91f7512a
SHA256

bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531
SHA512

2b9fb63088d1e8f3450eb3fa878c1993e263608019eefb3be940b4bbe15168ab570aaff380b65779b61fbcb04ba4d03d8f5525479e762b85db5a3b8f41bd582d
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDf:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3x

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/4104-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4104-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4104-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4104-62-0x0000000000400000-0x0000000000414000-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	bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe

Executes dropped EXE 3 IoCs

pid	Process
2944	csrsll.exe
748	csrsll.exe
4104	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 4688 set thread context of 3332	4688	bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe	90
PID 2944 set thread context of 748	2944	csrsll.exe	99
PID 2944 set thread context of 4104	2944	csrsll.exe	100

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4688-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4688-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3332-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3332-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4688-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3332-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c89-29.dat	upx
behavioral2/memory/3332-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2944-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2944-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4104-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4104-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4104-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4104-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2944-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4104-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3332-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/748-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4104-62-0x0000000000400000-0x0000000000414000-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	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	bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4688	bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe
3332	bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe
2944	csrsll.exe
748	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4688 wrote to memory of 3332	4688	bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe	90
PID 4688 wrote to memory of 3332	4688	bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe	90
PID 4688 wrote to memory of 3332	4688	bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe	90
PID 4688 wrote to memory of 3332	4688	bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe	90
PID 4688 wrote to memory of 3332	4688	bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe	90
PID 4688 wrote to memory of 3332	4688	bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe	90
PID 4688 wrote to memory of 3332	4688	bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe	90
PID 4688 wrote to memory of 3332	4688	bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe	90
PID 3332 wrote to memory of 2068	3332	bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe	94
PID 3332 wrote to memory of 2068	3332	bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe	94
PID 3332 wrote to memory of 2068	3332	bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe	94
PID 2068 wrote to memory of 1252	2068	cmd.exe	97
PID 2068 wrote to memory of 1252	2068	cmd.exe	97
PID 2068 wrote to memory of 1252	2068	cmd.exe	97
PID 3332 wrote to memory of 2944	3332	bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe	98
PID 3332 wrote to memory of 2944	3332	bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe	98
PID 3332 wrote to memory of 2944	3332	bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe	98
PID 2944 wrote to memory of 748	2944	csrsll.exe	99
PID 2944 wrote to memory of 748	2944	csrsll.exe	99
PID 2944 wrote to memory of 748	2944	csrsll.exe	99
PID 2944 wrote to memory of 748	2944	csrsll.exe	99
PID 2944 wrote to memory of 748	2944	csrsll.exe	99
PID 2944 wrote to memory of 748	2944	csrsll.exe	99
PID 2944 wrote to memory of 748	2944	csrsll.exe	99
PID 2944 wrote to memory of 748	2944	csrsll.exe	99
PID 2944 wrote to memory of 4104	2944	csrsll.exe	100
PID 2944 wrote to memory of 4104	2944	csrsll.exe	100
PID 2944 wrote to memory of 4104	2944	csrsll.exe	100
PID 2944 wrote to memory of 4104	2944	csrsll.exe	100
PID 2944 wrote to memory of 4104	2944	csrsll.exe	100
PID 2944 wrote to memory of 4104	2944	csrsll.exe	100
PID 2944 wrote to memory of 4104	2944	csrsll.exe	100
PID 2944 wrote to memory of 4104	2944	csrsll.exe	100

C:\Users\Admin\AppData\Local\Temp\bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe
"C:\Users\Admin\AppData\Local\Temp\bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4688
- C:\Users\Admin\AppData\Local\Temp\bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe
  "C:\Users\Admin\AppData\Local\Temp\bddee46af5224e91bb2a22beb6c0fd4720dcda6a8ce4b0abe338946e539a6531.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3332
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NVNAC.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2068
  - - 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:1252
- - 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:2944
  - - 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:748
  - - 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:4104

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\NVNAC.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
031628cd995c14d620e3eab84828cc14

SHA1
becaccb821b9744addcf75ec99faf8bbc580f95d

SHA256
2c2b74813266beaa308b330ed6d3fb945c48683b0935f29f70d87b165f030dbb

SHA512
adbf1b4ad4daa2ed29caeeda73261a4227e0fa67e208d5d7f7de3803395c5920da5cfbd7717dec63821b578f1a7ef0a965058b767b61eec1169a235173ef82c8

Download Submit
memory/748-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2944-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2944-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2944-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3332-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3332-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3332-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3332-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3332-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4104-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4104-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4104-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4104-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4104-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4104-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4688-6-0x0000000002440000-0x0000000002442000-memory.dmp

Filesize
8KB

Download
memory/4688-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4688-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4688-5-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/4688-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4688-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads