modiloader | cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344

Analysis

max time kernel
120s
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
17-12-2024 21:07

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe
Size

326KB
MD5

d19f2862fc6f9f407159e4a456a2bfb0
SHA1

684e5f9c2a52283d0f8cb481f0b35b7060977b77
SHA256

cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344
SHA512

e02814265d4c93fafa20a957f32fa8d709ebb0be4722b6da595854f1c5dc0b82f18849fecf73f033c85a4ad938cea4d3f961b8e9a38922717cb408277daf0ba8
SSDEEP

3072:ce2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XV:csxD5cwohO+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/1764-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1764-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1764-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1764-62-0x0000000000400000-0x0000000000414000-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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe

Executes dropped EXE 3 IoCs

pid	Process
3076	csrsll.exe
4920	csrsll.exe
1764	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-1-5-21-4089630652-1596403869-279772308-1000\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 1520 set thread context of 4984	1520	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	86
PID 3076 set thread context of 4920	3076	csrsll.exe	95
PID 3076 set thread context of 1764	3076	csrsll.exe	96

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1520-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1520-5-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4984-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4984-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4984-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1520-14-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/files/0x000a000000023bbc-29.dat	upx
behavioral2/memory/3076-36-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3076-41-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4984-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3076-42-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1764-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1764-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1764-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1764-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4984-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3076-57-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1764-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4920-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1764-62-0x0000000000400000-0x0000000000414000-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	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	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe
Token: SeDebugPrivilege	4920	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1520	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe
4984	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe
3076	csrsll.exe
4920	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 4984	1520	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	86
PID 1520 wrote to memory of 4984	1520	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	86
PID 1520 wrote to memory of 4984	1520	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	86
PID 1520 wrote to memory of 4984	1520	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	86
PID 1520 wrote to memory of 4984	1520	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	86
PID 1520 wrote to memory of 4984	1520	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	86
PID 1520 wrote to memory of 4984	1520	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	86
PID 1520 wrote to memory of 4984	1520	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	86
PID 4984 wrote to memory of 3592	4984	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	87
PID 4984 wrote to memory of 3592	4984	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	87
PID 4984 wrote to memory of 3592	4984	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	87
PID 3592 wrote to memory of 4084	3592	cmd.exe	90
PID 3592 wrote to memory of 4084	3592	cmd.exe	90
PID 3592 wrote to memory of 4084	3592	cmd.exe	90
PID 4984 wrote to memory of 3076	4984	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	91
PID 4984 wrote to memory of 3076	4984	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	91
PID 4984 wrote to memory of 3076	4984	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	91
PID 3076 wrote to memory of 4920	3076	csrsll.exe	95
PID 3076 wrote to memory of 4920	3076	csrsll.exe	95
PID 3076 wrote to memory of 4920	3076	csrsll.exe	95
PID 3076 wrote to memory of 4920	3076	csrsll.exe	95
PID 3076 wrote to memory of 4920	3076	csrsll.exe	95
PID 3076 wrote to memory of 4920	3076	csrsll.exe	95
PID 3076 wrote to memory of 4920	3076	csrsll.exe	95
PID 3076 wrote to memory of 4920	3076	csrsll.exe	95
PID 3076 wrote to memory of 1764	3076	csrsll.exe	96
PID 3076 wrote to memory of 1764	3076	csrsll.exe	96
PID 3076 wrote to memory of 1764	3076	csrsll.exe	96
PID 3076 wrote to memory of 1764	3076	csrsll.exe	96
PID 3076 wrote to memory of 1764	3076	csrsll.exe	96
PID 3076 wrote to memory of 1764	3076	csrsll.exe	96
PID 3076 wrote to memory of 1764	3076	csrsll.exe	96
PID 3076 wrote to memory of 1764	3076	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe
"C:\Users\Admin\AppData\Local\Temp\cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1520
- C:\Users\Admin\AppData\Local\Temp\cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe
  "C:\Users\Admin\AppData\Local\Temp\cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4984
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\AGDRR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3592
  - - 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:4084
- - 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:3076
  - - 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:4920
  - - 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:1764

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\AGDRR.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
326KB

MD5
cabc370b05490f0eb3035e810bb2e636

SHA1
524afca98e3ca05ea2c46bf70d7ed9c4010294ca

SHA256
6cee3aa844d39a0785a826cd878fc3d3a92a421aafcea5b35b5235b9fad9c8f6

SHA512
1b2f6e308c166552893142ea35f746718e6ac3316f672aae139056d471e8b343388a50e39b7cd7dc22ead27e63fdcd1d88f43d4bc4a1262e7eef070997fab2bf

Download Submit
memory/1520-5-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1520-6-0x0000000002C90000-0x0000000002C92000-memory.dmp

Filesize
8KB

Download
memory/1520-14-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1520-4-0x0000000002420000-0x0000000002422000-memory.dmp

Filesize
8KB

Download
memory/1520-3-0x0000000002410000-0x0000000002412000-memory.dmp

Filesize
8KB

Download
memory/1520-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1764-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1764-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1764-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1764-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1764-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1764-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3076-41-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3076-42-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3076-36-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3076-57-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4920-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4984-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4984-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4984-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4984-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4984-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads