modiloader | 506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fc

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
10-11-2024 04:46

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General

Target

506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe
Size

94KB
MD5

263f022f4e1165d0aa1f05f8f5b6b6e0
SHA1

d1ad3b6b523cb4b02bff114bc657f6d83922c4af
SHA256

506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fc
SHA512

2ffbf152c75a7eec52b49fef44d3cc30c3a75b712c447841845715c1860b843a94e949635e8e6a573a85b7940c3e38481bf2f010356f44424676767a2b281073
SSDEEP

1536:/pdyL9GjGiwA1z0PmVggNJKbFD2BBMx1RiwmPJr3raDk5BRf13KH9m2POE/:/pdyLALwACPmV3NYaYLiwIt3raA5BRfM

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/228-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/228-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/228-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/228-60-0x0000000000400000-0x0000000000414000-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	506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe

Executes dropped EXE 3 IoCs

pid	Process
452	csrsll.exe
1364	csrsll.exe
228	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 1192 set thread context of 3700	1192	506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe	86
PID 452 set thread context of 1364	452	csrsll.exe	96
PID 452 set thread context of 228	452	csrsll.exe	97

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1192-0-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/3700-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3700-5-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3700-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1192-12-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/files/0x0010000000023afa-27.dat	upx
behavioral2/memory/452-34-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/452-38-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/452-39-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/3700-46-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/228-42-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/452-51-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/228-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/228-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/228-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/228-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3700-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1364-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/228-60-0x0000000000400000-0x0000000000414000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe
Token: SeDebugPrivilege	1364	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1192	506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe
3700	506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe
452	csrsll.exe
1364	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1192 wrote to memory of 3700	1192	506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe	86
PID 1192 wrote to memory of 3700	1192	506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe	86
PID 1192 wrote to memory of 3700	1192	506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe	86
PID 1192 wrote to memory of 3700	1192	506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe	86
PID 1192 wrote to memory of 3700	1192	506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe	86
PID 1192 wrote to memory of 3700	1192	506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe	86
PID 1192 wrote to memory of 3700	1192	506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe	86
PID 1192 wrote to memory of 3700	1192	506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe	86
PID 3700 wrote to memory of 1756	3700	506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe	89
PID 3700 wrote to memory of 1756	3700	506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe	89
PID 3700 wrote to memory of 1756	3700	506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe	89
PID 1756 wrote to memory of 4232	1756	cmd.exe	92
PID 1756 wrote to memory of 4232	1756	cmd.exe	92
PID 1756 wrote to memory of 4232	1756	cmd.exe	92
PID 3700 wrote to memory of 452	3700	506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe	93
PID 3700 wrote to memory of 452	3700	506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe	93
PID 3700 wrote to memory of 452	3700	506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe	93
PID 452 wrote to memory of 1364	452	csrsll.exe	96
PID 452 wrote to memory of 1364	452	csrsll.exe	96
PID 452 wrote to memory of 1364	452	csrsll.exe	96
PID 452 wrote to memory of 1364	452	csrsll.exe	96
PID 452 wrote to memory of 1364	452	csrsll.exe	96
PID 452 wrote to memory of 1364	452	csrsll.exe	96
PID 452 wrote to memory of 1364	452	csrsll.exe	96
PID 452 wrote to memory of 1364	452	csrsll.exe	96
PID 452 wrote to memory of 228	452	csrsll.exe	97
PID 452 wrote to memory of 228	452	csrsll.exe	97
PID 452 wrote to memory of 228	452	csrsll.exe	97
PID 452 wrote to memory of 228	452	csrsll.exe	97
PID 452 wrote to memory of 228	452	csrsll.exe	97
PID 452 wrote to memory of 228	452	csrsll.exe	97
PID 452 wrote to memory of 228	452	csrsll.exe	97
PID 452 wrote to memory of 228	452	csrsll.exe	97

C:\Users\Admin\AppData\Local\Temp\506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe
"C:\Users\Admin\AppData\Local\Temp\506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Users\Admin\AppData\Local\Temp\506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe
  "C:\Users\Admin\AppData\Local\Temp\506e304d1701fe146be9e976b37c96d4521e0883ff515db21c5c82dc64d9b2fcN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3700
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\VUIJE.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1756
  - - 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:4232
- - 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:452
  - - 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:1364
  - - 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:228

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\VUIJE.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
94KB

MD5
a722d3669a3957a9750570ab4be71eaf

SHA1
9c25b66384a474f36c9be70b51e830ec3429a3cf

SHA256
e070784f5eff51221a6df6b50e357eab0bf97b678fd9fd195491503205ec6bbc

SHA512
13ee90bde50fcb1c026975ed4e4d8708771ef918aaf6370f3ace6e2bcf7d60d0dbc8576e70180fd9dddb8018d2bfd314b9494b0a99c77bbc93cff627597da429

Download Submit
memory/228-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/228-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/228-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/228-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/228-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/228-42-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/452-38-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/452-39-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/452-34-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/452-51-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1192-4-0x0000000002330000-0x0000000002331000-memory.dmp

Filesize
4KB

Download
memory/1192-0-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1192-12-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1192-3-0x0000000002310000-0x0000000002311000-memory.dmp

Filesize
4KB

Download
memory/1364-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3700-46-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3700-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3700-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3700-5-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3700-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads