modiloader | 476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26/11/2024, 16:17

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General

Target

476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe
Size

90KB
MD5

9489c8139c55ecaa05e0eccb4736bf90
SHA1

d1a6678b8e2af418d88a572bb34ff7b5134842e3
SHA256

476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0
SHA512

f81cb2d89feb3e22e6418a3e2f907351b44314c87d62107de3f77b5a21c8acf6842458ea94a85c9cf9162e2be132b31006b2de7ecc810b3b59f5812603c5881e
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD9:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3T

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/1324-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1324-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1324-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1324-63-0x0000000000400000-0x0000000000414000-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	476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe

Executes dropped EXE 3 IoCs

pid	Process
4036	csrsll.exe
4504	csrsll.exe
1324	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 2804 set thread context of 4520	2804	476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe	91
PID 4036 set thread context of 4504	4036	csrsll.exe	104
PID 4036 set thread context of 1324	4036	csrsll.exe	105

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2804-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2804-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4520-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4520-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2804-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4520-14-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023cd7-30.dat	upx
behavioral2/memory/4520-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4036-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4036-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1324-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1324-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1324-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1324-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4036-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1324-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4520-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4504-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1324-63-0x0000000000400000-0x0000000000414000-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	476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2804	476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe
4520	476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe
4036	csrsll.exe
4504	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2804 wrote to memory of 4520	2804	476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe	91
PID 2804 wrote to memory of 4520	2804	476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe	91
PID 2804 wrote to memory of 4520	2804	476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe	91
PID 2804 wrote to memory of 4520	2804	476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe	91
PID 2804 wrote to memory of 4520	2804	476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe	91
PID 2804 wrote to memory of 4520	2804	476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe	91
PID 2804 wrote to memory of 4520	2804	476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe	91
PID 2804 wrote to memory of 4520	2804	476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe	91
PID 4520 wrote to memory of 4788	4520	476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe	94
PID 4520 wrote to memory of 4788	4520	476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe	94
PID 4520 wrote to memory of 4788	4520	476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe	94
PID 4788 wrote to memory of 1812	4788	cmd.exe	98
PID 4788 wrote to memory of 1812	4788	cmd.exe	98
PID 4788 wrote to memory of 1812	4788	cmd.exe	98
PID 4520 wrote to memory of 4036	4520	476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe	99
PID 4520 wrote to memory of 4036	4520	476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe	99
PID 4520 wrote to memory of 4036	4520	476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe	99
PID 4036 wrote to memory of 4504	4036	csrsll.exe	104
PID 4036 wrote to memory of 4504	4036	csrsll.exe	104
PID 4036 wrote to memory of 4504	4036	csrsll.exe	104
PID 4036 wrote to memory of 4504	4036	csrsll.exe	104
PID 4036 wrote to memory of 4504	4036	csrsll.exe	104
PID 4036 wrote to memory of 4504	4036	csrsll.exe	104
PID 4036 wrote to memory of 4504	4036	csrsll.exe	104
PID 4036 wrote to memory of 4504	4036	csrsll.exe	104
PID 4036 wrote to memory of 1324	4036	csrsll.exe	105
PID 4036 wrote to memory of 1324	4036	csrsll.exe	105
PID 4036 wrote to memory of 1324	4036	csrsll.exe	105
PID 4036 wrote to memory of 1324	4036	csrsll.exe	105
PID 4036 wrote to memory of 1324	4036	csrsll.exe	105
PID 4036 wrote to memory of 1324	4036	csrsll.exe	105
PID 4036 wrote to memory of 1324	4036	csrsll.exe	105
PID 4036 wrote to memory of 1324	4036	csrsll.exe	105

C:\Users\Admin\AppData\Local\Temp\476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe
"C:\Users\Admin\AppData\Local\Temp\476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2804
- C:\Users\Admin\AppData\Local\Temp\476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe
  "C:\Users\Admin\AppData\Local\Temp\476769472d5d064339bf8d655bb4e7636aeebdcdfc26b648a5fdcaea1811cce0N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4520
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DRQCK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4788
  - - 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:1812
- - 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:4036
  - - 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:4504
  - - 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:1324

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\DRQCK.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
de0a546a661eb9d07a53476796450976

SHA1
d25136a1f36cd4b6544a9f3b2d737f3d86f9da73

SHA256
e4a242475a0bdda5c2f99cbeb55bee78befa0526695b544250b9547b3c059496

SHA512
4501255b5203a8dc16ba7815f83a2ceadac51cc442f696adeb3d7a002b0f4526d595a285d46507e417d173acf2150783bae03261668c3298e337038a981dff5c

Download Submit
memory/1324-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1324-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1324-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1324-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1324-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1324-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2804-6-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/2804-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2804-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2804-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2804-7-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/2804-4-0x00000000022E0000-0x00000000022E2000-memory.dmp

Filesize
8KB

Download
memory/2804-3-0x00000000021B0000-0x00000000021B2000-memory.dmp

Filesize
8KB

Download
memory/4036-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4036-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4036-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4504-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4520-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4520-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4520-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4520-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4520-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4520-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads