modiloader | 4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b

Analysis

max time kernel
120s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2024 06:13

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe
Size

300KB
MD5

f0b00258f5d8928dbbf96f2b775d7a44
SHA1

79fd5119a8113fe7ab857fe4095579b9c0309786
SHA256

4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b
SHA512

1ecba1595ef2e9575b27ea30a7c5d8a684daa422c3d20408c02a6d6ebc059e3e4d5f322ede459f00376405dc083cd7bd7eb293dbe1f1a2ea171e3f4948fd433e
SSDEEP

3072:Ue2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38Gs:UsxD5cwohO+O1sVG0/pZ6iPC8+

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/3800-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3800-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3800-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3800-59-0x0000000000400000-0x0000000000414000-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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe

Executes dropped EXE 3 IoCs

pid	Process
3268	csrsll.exe
3900	csrsll.exe
3800	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-1-5-21-2045521122-590294423-3465680274-1000\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 1904 set thread context of 4996	1904	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	89
PID 3268 set thread context of 3900	3268	csrsll.exe	101
PID 3268 set thread context of 3800	3268	csrsll.exe	102

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4996-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4996-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4996-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4996-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3800-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3800-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3800-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3800-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3800-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4996-56-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3900-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3800-59-0x0000000000400000-0x0000000000414000-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	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.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	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe
Token: SeDebugPrivilege	3900	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1904	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe
4996	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe
3268	csrsll.exe
3900	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1904 wrote to memory of 4996	1904	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	89
PID 1904 wrote to memory of 4996	1904	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	89
PID 1904 wrote to memory of 4996	1904	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	89
PID 1904 wrote to memory of 4996	1904	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	89
PID 1904 wrote to memory of 4996	1904	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	89
PID 1904 wrote to memory of 4996	1904	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	89
PID 1904 wrote to memory of 4996	1904	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	89
PID 1904 wrote to memory of 4996	1904	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	89
PID 4996 wrote to memory of 1304	4996	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	90
PID 4996 wrote to memory of 1304	4996	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	90
PID 4996 wrote to memory of 1304	4996	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	90
PID 1304 wrote to memory of 2944	1304	cmd.exe	94
PID 1304 wrote to memory of 2944	1304	cmd.exe	94
PID 1304 wrote to memory of 2944	1304	cmd.exe	94
PID 4996 wrote to memory of 3268	4996	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	95
PID 4996 wrote to memory of 3268	4996	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	95
PID 4996 wrote to memory of 3268	4996	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	95
PID 3268 wrote to memory of 3900	3268	csrsll.exe	101
PID 3268 wrote to memory of 3900	3268	csrsll.exe	101
PID 3268 wrote to memory of 3900	3268	csrsll.exe	101
PID 3268 wrote to memory of 3900	3268	csrsll.exe	101
PID 3268 wrote to memory of 3900	3268	csrsll.exe	101
PID 3268 wrote to memory of 3900	3268	csrsll.exe	101
PID 3268 wrote to memory of 3900	3268	csrsll.exe	101
PID 3268 wrote to memory of 3900	3268	csrsll.exe	101
PID 3268 wrote to memory of 3800	3268	csrsll.exe	102
PID 3268 wrote to memory of 3800	3268	csrsll.exe	102
PID 3268 wrote to memory of 3800	3268	csrsll.exe	102
PID 3268 wrote to memory of 3800	3268	csrsll.exe	102
PID 3268 wrote to memory of 3800	3268	csrsll.exe	102
PID 3268 wrote to memory of 3800	3268	csrsll.exe	102
PID 3268 wrote to memory of 3800	3268	csrsll.exe	102
PID 3268 wrote to memory of 3800	3268	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe
"C:\Users\Admin\AppData\Local\Temp\4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1904
- C:\Users\Admin\AppData\Local\Temp\4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe
  "C:\Users\Admin\AppData\Local\Temp\4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4996
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\PTOWK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1304
  - - 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:2944
- - 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:3268
  - - 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:3900
  - - 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:3800

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\PTOWK.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
300KB

MD5
0bb345ba6e8abfc163380540f5dcb447

SHA1
39204c78fa0ddee4ec19639192578b7efe98147f

SHA256
7b09a498e25f669d7617f25078fc7ba25495f1b3de9bfae6e917f29e4071feb5

SHA512
8bcbd9eca525a5de06cf585495b00c4ce2740e8d640b72438da25d928a4a622b58885a9df3e74016e66bf8f8bce34336ecc67e8ba007bda0f15223963f17712f

Download Submit
memory/1904-3-0x0000000002410000-0x0000000002412000-memory.dmp

Filesize
8KB

Download
memory/1904-4-0x0000000002420000-0x0000000002422000-memory.dmp

Filesize
8KB

Download
memory/1904-5-0x0000000002C90000-0x0000000002C92000-memory.dmp

Filesize
8KB

Download
memory/1904-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3268-39-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3268-55-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3268-40-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3800-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3800-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3800-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3800-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3800-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3800-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3900-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4996-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4996-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4996-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4996-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4996-56-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads