modiloader | 98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64

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
18/12/2024, 11:53

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe
Size

90KB
MD5

4a93d828f1ab0dc290dca7e2fb5795d0
SHA1

8d1bd90aac419fe4d221bb56987d7a2cab5f65a1
SHA256

98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64
SHA512

6808f009e884a9a8a0c783d851ab206df5bc12f31db711e65341b8d17511bedaaf63cadc94f4d113b0e61c55021963319fcca33c72053613d65e2a1295d47887
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDT:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3d

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/4044-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4044-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4044-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4044-61-0x0000000000400000-0x0000000000414000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe

Executes dropped EXE 3 IoCs

pid	Process
2828	csrsll.exe
1960	csrsll.exe
4044	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-1-5-21-2878641211-696417878-3864914810-1000\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 212 set thread context of 4932	212	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	83
PID 2828 set thread context of 1960	2828	csrsll.exe	103
PID 2828 set thread context of 4044	2828	csrsll.exe	104

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/212-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/212-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4932-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4932-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4932-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/212-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b74-29.dat	upx
behavioral2/memory/4932-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2828-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2828-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4044-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4044-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4044-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4044-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4044-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2828-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4932-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1960-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4044-61-0x0000000000400000-0x0000000000414000-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	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe
Token: SeDebugPrivilege	1960	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
212	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe
4932	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe
2828	csrsll.exe
1960	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 212 wrote to memory of 4932	212	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	83
PID 212 wrote to memory of 4932	212	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	83
PID 212 wrote to memory of 4932	212	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	83
PID 212 wrote to memory of 4932	212	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	83
PID 212 wrote to memory of 4932	212	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	83
PID 212 wrote to memory of 4932	212	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	83
PID 212 wrote to memory of 4932	212	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	83
PID 212 wrote to memory of 4932	212	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	83
PID 4932 wrote to memory of 3540	4932	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	91
PID 4932 wrote to memory of 3540	4932	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	91
PID 4932 wrote to memory of 3540	4932	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	91
PID 3540 wrote to memory of 5096	3540	cmd.exe	95
PID 3540 wrote to memory of 5096	3540	cmd.exe	95
PID 3540 wrote to memory of 5096	3540	cmd.exe	95
PID 4932 wrote to memory of 2828	4932	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	96
PID 4932 wrote to memory of 2828	4932	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	96
PID 4932 wrote to memory of 2828	4932	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	96
PID 2828 wrote to memory of 1960	2828	csrsll.exe	103
PID 2828 wrote to memory of 1960	2828	csrsll.exe	103
PID 2828 wrote to memory of 1960	2828	csrsll.exe	103
PID 2828 wrote to memory of 1960	2828	csrsll.exe	103
PID 2828 wrote to memory of 1960	2828	csrsll.exe	103
PID 2828 wrote to memory of 1960	2828	csrsll.exe	103
PID 2828 wrote to memory of 1960	2828	csrsll.exe	103
PID 2828 wrote to memory of 1960	2828	csrsll.exe	103
PID 2828 wrote to memory of 4044	2828	csrsll.exe	104
PID 2828 wrote to memory of 4044	2828	csrsll.exe	104
PID 2828 wrote to memory of 4044	2828	csrsll.exe	104
PID 2828 wrote to memory of 4044	2828	csrsll.exe	104
PID 2828 wrote to memory of 4044	2828	csrsll.exe	104
PID 2828 wrote to memory of 4044	2828	csrsll.exe	104
PID 2828 wrote to memory of 4044	2828	csrsll.exe	104
PID 2828 wrote to memory of 4044	2828	csrsll.exe	104

C:\Users\Admin\AppData\Local\Temp\98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe
"C:\Users\Admin\AppData\Local\Temp\98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:212
- C:\Users\Admin\AppData\Local\Temp\98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe
  "C:\Users\Admin\AppData\Local\Temp\98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4932
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\RFGBC.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3540
  - - 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:5096
- - 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:2828
  - - 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:1960
  - - 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:4044

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\RFGBC.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
d4483cc94d3facd32be7ed74c35cd9a6

SHA1
c22a2e853ee4ae5bd3108febe860edf14c720ab7

SHA256
9224138c4ee841dc80c8a3293cec27202ece5a181753de089b9eeeab4be9369b

SHA512
070fb5ade092f4fd1a2be9fceb2fa13360f96b77a808b296a77727e28e003d4697c189c9d4db6eaa37124e244bde9fb6d278da7ac713d6837305b61fdd2c2fed

Download Submit
memory/212-3-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/212-4-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/212-6-0x0000000002A90000-0x0000000002A92000-memory.dmp

Filesize
8KB

Download
memory/212-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/212-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/212-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1960-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2828-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2828-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2828-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4044-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4044-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4044-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4044-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4044-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4044-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4932-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4932-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4932-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4932-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4932-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads