modiloader | 021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712d

Analysis

max time kernel
119s
max time network
118s
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 17:13

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General

Target

021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe
Size

326KB
MD5

fe2c2e78b84e4872291cad337415b6b0
SHA1

2eb4993ff8d520a149b4883cfe36bd04b54195da
SHA256

021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712d
SHA512

19126941cb66d065a444601d87874327b1cef2ff388b02e13d3dbf6f468b3ddf96233546a7e85830ffaa3502d9ca0a02bbc211cda06f365b812adeb86f5e7bf8
SSDEEP

3072:h0e2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XV:h0sxD5cwohO+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/1344-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1344-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1344-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1344-62-0x0000000000400000-0x0000000000414000-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	021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe

Executes dropped EXE 3 IoCs

pid	Process
3940	csrsll.exe
1488	csrsll.exe
1344	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 2740 set thread context of 1484	2740	021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe	93
PID 3940 set thread context of 1488	3940	csrsll.exe	102
PID 3940 set thread context of 1344	3940	csrsll.exe	103

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2740-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/2740-5-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1484-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1484-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1484-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2740-13-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/files/0x000d000000023b65-28.dat	upx
behavioral2/memory/3940-36-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1484-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3940-40-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3940-42-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3940-41-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1344-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1344-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1344-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1344-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3940-57-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1484-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1344-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1488-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1344-62-0x0000000000400000-0x0000000000414000-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	021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.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	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe
Token: SeDebugPrivilege	1488	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2740	021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe
1484	021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe
3940	csrsll.exe
1488	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2740 wrote to memory of 1484	2740	021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe	93
PID 2740 wrote to memory of 1484	2740	021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe	93
PID 2740 wrote to memory of 1484	2740	021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe	93
PID 2740 wrote to memory of 1484	2740	021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe	93
PID 2740 wrote to memory of 1484	2740	021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe	93
PID 2740 wrote to memory of 1484	2740	021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe	93
PID 2740 wrote to memory of 1484	2740	021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe	93
PID 2740 wrote to memory of 1484	2740	021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe	93
PID 1484 wrote to memory of 4412	1484	021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe	94
PID 1484 wrote to memory of 4412	1484	021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe	94
PID 1484 wrote to memory of 4412	1484	021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe	94
PID 4412 wrote to memory of 2376	4412	cmd.exe	100
PID 4412 wrote to memory of 2376	4412	cmd.exe	100
PID 4412 wrote to memory of 2376	4412	cmd.exe	100
PID 1484 wrote to memory of 3940	1484	021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe	101
PID 1484 wrote to memory of 3940	1484	021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe	101
PID 1484 wrote to memory of 3940	1484	021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe	101
PID 3940 wrote to memory of 1488	3940	csrsll.exe	102
PID 3940 wrote to memory of 1488	3940	csrsll.exe	102
PID 3940 wrote to memory of 1488	3940	csrsll.exe	102
PID 3940 wrote to memory of 1488	3940	csrsll.exe	102
PID 3940 wrote to memory of 1488	3940	csrsll.exe	102
PID 3940 wrote to memory of 1488	3940	csrsll.exe	102
PID 3940 wrote to memory of 1488	3940	csrsll.exe	102
PID 3940 wrote to memory of 1488	3940	csrsll.exe	102
PID 3940 wrote to memory of 1344	3940	csrsll.exe	103
PID 3940 wrote to memory of 1344	3940	csrsll.exe	103
PID 3940 wrote to memory of 1344	3940	csrsll.exe	103
PID 3940 wrote to memory of 1344	3940	csrsll.exe	103
PID 3940 wrote to memory of 1344	3940	csrsll.exe	103
PID 3940 wrote to memory of 1344	3940	csrsll.exe	103
PID 3940 wrote to memory of 1344	3940	csrsll.exe	103
PID 3940 wrote to memory of 1344	3940	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe
"C:\Users\Admin\AppData\Local\Temp\021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2740
- C:\Users\Admin\AppData\Local\Temp\021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe
  "C:\Users\Admin\AppData\Local\Temp\021ae28e7a241f89a0aec0ee5e1af7e467bcc0ccfbf8cc191a568c60564c712dN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1484
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YOKJW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4412
  - - 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:2376
- - 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:3940
  - - 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:1488
  - - 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:1344

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\YOKJW.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
326KB

MD5
a301ac08b6f784e16777a2457bffb8d8

SHA1
2461bcbd2059115c1d8b4460e852897fb3a73f64

SHA256
61dd23a6e0407acf4f38db951d9c8f04876bd1d32c553472ffe1a1002f282a95

SHA512
38f625c989d01f0570da60092e3103c24e8f8918c6a8e4281c45d951f9371f0fa311316370e3641e198a86061af76e7f170bab84e962fe127f10fb73ad3039b8

Download Submit
memory/1344-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1344-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1344-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1344-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1344-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1344-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1484-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1484-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1484-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1484-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1484-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1488-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2740-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2740-5-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2740-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/2740-13-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2740-4-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/2740-3-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/3940-40-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3940-42-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3940-41-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3940-36-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3940-57-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads