modiloader | e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-11-2024 05:08

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe
Size

90KB
MD5

2ecd438b2e325e5ca85c6ae6eebc8001
SHA1

edf03368e7969e875aae82cbb6bade860dd8619a
SHA256

e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c
SHA512

71732b91e0a1b0cf2ff022de11d2d001afade060d7122efc0c1fd10129ed14cf14e361e053a90969f7113134b1b8607d2bb89b322eafedb99438ef1b242b8e1e
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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

Processes:

resource	yara_rule
behavioral2/memory/4968-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4968-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4968-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4968-63-0x0000000000400000-0x0000000000414000-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

Processes:

e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe

Executes dropped EXE 3 IoCs

Processes:

csrsll.execsrsll.execsrsll.exe

pid	Process
1084	csrsll.exe
2632	csrsll.exe
4968	csrsll.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.execsrsll.exe

description	pid	Process	procid_target
PID 4900 set thread context of 528	4900	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	92
PID 1084 set thread context of 2632	1084	csrsll.exe	100
PID 1084 set thread context of 4968	1084	csrsll.exe	101

UPX packed file 20 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4900-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4900-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/528-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/528-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/528-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4900-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b9d-29.dat	upx
behavioral2/memory/1084-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/528-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1084-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1084-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4968-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4968-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4968-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4968-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1084-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4968-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/528-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2632-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4968-63-0x0000000000400000-0x0000000000414000-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

Processes:

e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exee4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.execmd.exereg.execsrsll.execsrsll.execsrsll.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.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

Processes:

csrsll.exe

description	pid	Process
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe
Token: SeDebugPrivilege	2632	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exee4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.execsrsll.execsrsll.exe

pid	Process
4900	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe
528	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe
1084	csrsll.exe
2632	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exee4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.execmd.execsrsll.exe

description	pid	Process	procid_target
PID 4900 wrote to memory of 528	4900	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	92
PID 4900 wrote to memory of 528	4900	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	92
PID 4900 wrote to memory of 528	4900	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	92
PID 4900 wrote to memory of 528	4900	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	92
PID 4900 wrote to memory of 528	4900	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	92
PID 4900 wrote to memory of 528	4900	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	92
PID 4900 wrote to memory of 528	4900	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	92
PID 4900 wrote to memory of 528	4900	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	92
PID 528 wrote to memory of 2592	528	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	94
PID 528 wrote to memory of 2592	528	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	94
PID 528 wrote to memory of 2592	528	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	94
PID 2592 wrote to memory of 2444	2592	cmd.exe	98
PID 2592 wrote to memory of 2444	2592	cmd.exe	98
PID 2592 wrote to memory of 2444	2592	cmd.exe	98
PID 528 wrote to memory of 1084	528	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	99
PID 528 wrote to memory of 1084	528	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	99
PID 528 wrote to memory of 1084	528	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	99
PID 1084 wrote to memory of 2632	1084	csrsll.exe	100
PID 1084 wrote to memory of 2632	1084	csrsll.exe	100
PID 1084 wrote to memory of 2632	1084	csrsll.exe	100
PID 1084 wrote to memory of 2632	1084	csrsll.exe	100
PID 1084 wrote to memory of 2632	1084	csrsll.exe	100
PID 1084 wrote to memory of 2632	1084	csrsll.exe	100
PID 1084 wrote to memory of 2632	1084	csrsll.exe	100
PID 1084 wrote to memory of 2632	1084	csrsll.exe	100
PID 1084 wrote to memory of 4968	1084	csrsll.exe	101
PID 1084 wrote to memory of 4968	1084	csrsll.exe	101
PID 1084 wrote to memory of 4968	1084	csrsll.exe	101
PID 1084 wrote to memory of 4968	1084	csrsll.exe	101
PID 1084 wrote to memory of 4968	1084	csrsll.exe	101
PID 1084 wrote to memory of 4968	1084	csrsll.exe	101
PID 1084 wrote to memory of 4968	1084	csrsll.exe	101
PID 1084 wrote to memory of 4968	1084	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe
"C:\Users\Admin\AppData\Local\Temp\e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4900
- C:\Users\Admin\AppData\Local\Temp\e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe
  "C:\Users\Admin\AppData\Local\Temp\e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:528
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JWDNW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2592
  - - 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:2444
- - 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:1084
  - - 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:2632
  - - 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:4968

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\JWDNW.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
7698d54e4ebdd5ef8454ea4a92edcc7c

SHA1
f520dbaa2820e89b1457ac0bbc5a1cb14b21a350

SHA256
9a7c8337cfcb384acf84a42f2f54394ce12a3c06cd5e75e2c7be61bcfcd62ba1

SHA512
45f1c0fc6df33fafe53c3d587168a527dc1784f7b5e8907d3cb0b4fd6a9b0df63f7f4bdabb63e3c9162be61157bd7d770ada310a194a79bb18bfee33f016d609

Download Submit
memory/528-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/528-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/528-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/528-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/528-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1084-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1084-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1084-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1084-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2632-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4900-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4900-6-0x00000000021F0000-0x00000000021F2000-memory.dmp

Filesize
8KB

Download
memory/4900-3-0x00000000021C0000-0x00000000021C2000-memory.dmp

Filesize
8KB

Download
memory/4900-4-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download
memory/4900-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4900-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4968-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4968-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4968-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4968-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4968-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4968-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download