modiloader | c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488

Analysis

max time kernel
118s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-12-2024 01:38

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General

Target

c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe
Size

90KB
MD5

f19c07f1901fbc015426c9ae90c908bd
SHA1

1252137ec3564d8912bdf0c3518c4c244b7b0202
SHA256

c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488
SHA512

c6fcf7eacd58450705bf67c80bb81536c1fdf332ffe6286e42b90dd36906ce06db7f51f660bc01df31506d547b619ffe7c992fd0d44c1e7d20fdc7e7eb8ad2eb
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDa:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3A

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 2 IoCs

resource	yara_rule
behavioral1/memory/324-255-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/324-259-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2364	csrsll.exe
1300	csrsll.exe
324	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2796	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe
2796	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe
2796	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe
2796	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe
2796	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.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-1-5-21-312935884-697965778-3955649944-1000\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 1832 set thread context of 2796	1832	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	31
PID 2364 set thread context of 1300	2364	csrsll.exe	36
PID 2364 set thread context of 324	2364	csrsll.exe	37

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1832-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1832-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1832-87-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2796-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1832-104-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2796-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2796-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1832-100-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2796-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2796-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2796-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000a000000016cf6-132.dat	upx
behavioral1/memory/2796-146-0x0000000003460000-0x00000000034B3000-memory.dmp	upx
behavioral1/memory/2796-154-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2364-213-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2796-252-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/324-255-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2364-249-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1300-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/324-259-0x0000000000400000-0x0000000000414000-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	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe
Token: SeDebugPrivilege	1300	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1832	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe
2796	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe
2364	csrsll.exe
1300	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1832 wrote to memory of 2796	1832	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	31
PID 1832 wrote to memory of 2796	1832	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	31
PID 1832 wrote to memory of 2796	1832	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	31
PID 1832 wrote to memory of 2796	1832	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	31
PID 1832 wrote to memory of 2796	1832	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	31
PID 1832 wrote to memory of 2796	1832	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	31
PID 1832 wrote to memory of 2796	1832	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	31
PID 1832 wrote to memory of 2796	1832	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	31
PID 2796 wrote to memory of 2836	2796	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	32
PID 2796 wrote to memory of 2836	2796	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	32
PID 2796 wrote to memory of 2836	2796	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	32
PID 2796 wrote to memory of 2836	2796	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	32
PID 2836 wrote to memory of 2164	2836	cmd.exe	34
PID 2836 wrote to memory of 2164	2836	cmd.exe	34
PID 2836 wrote to memory of 2164	2836	cmd.exe	34
PID 2836 wrote to memory of 2164	2836	cmd.exe	34
PID 2796 wrote to memory of 2364	2796	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	35
PID 2796 wrote to memory of 2364	2796	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	35
PID 2796 wrote to memory of 2364	2796	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	35
PID 2796 wrote to memory of 2364	2796	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	35
PID 2364 wrote to memory of 1300	2364	csrsll.exe	36
PID 2364 wrote to memory of 1300	2364	csrsll.exe	36
PID 2364 wrote to memory of 1300	2364	csrsll.exe	36
PID 2364 wrote to memory of 1300	2364	csrsll.exe	36
PID 2364 wrote to memory of 1300	2364	csrsll.exe	36
PID 2364 wrote to memory of 1300	2364	csrsll.exe	36
PID 2364 wrote to memory of 1300	2364	csrsll.exe	36
PID 2364 wrote to memory of 1300	2364	csrsll.exe	36
PID 2364 wrote to memory of 324	2364	csrsll.exe	37
PID 2364 wrote to memory of 324	2364	csrsll.exe	37
PID 2364 wrote to memory of 324	2364	csrsll.exe	37
PID 2364 wrote to memory of 324	2364	csrsll.exe	37
PID 2364 wrote to memory of 324	2364	csrsll.exe	37
PID 2364 wrote to memory of 324	2364	csrsll.exe	37
PID 2364 wrote to memory of 324	2364	csrsll.exe	37
PID 2364 wrote to memory of 324	2364	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe
"C:\Users\Admin\AppData\Local\Temp\c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1832
- C:\Users\Admin\AppData\Local\Temp\c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe
  "C:\Users\Admin\AppData\Local\Temp\c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2796
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\BYMKI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2836
  - - 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:2164
- - 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:2364
  - - 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:1300
  - - 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:324

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

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\BYMKI.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
6df849f063d7cf80fda420158d02fb99

SHA1
9c7d415df0bb6ecea4533626ec2841e51a3fd6ce

SHA256
cb1ecc5ee1e0ede6e8c6ea86c05c95c73f9fc003719a9f2a052a73e2ae25b6bf

SHA512
9c51b72060e6f303c578443b0f8bef684d11986870c4b51ec1e4f640d4180551cf5870a44d5f911e774feb447451432395ac1fb1c806b1f0b82309456933c31f

Download Submit
memory/324-259-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/324-255-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1300-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1832-106-0x00000000027A0000-0x00000000027F3000-memory.dmp

Filesize
332KB

Download
memory/1832-100-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1832-41-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/1832-87-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1832-79-0x0000000000470000-0x0000000000472000-memory.dmp

Filesize
8KB

Download
memory/1832-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1832-104-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1832-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/1832-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1832-3-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1832-5-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1832-15-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/1832-29-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/1832-61-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/1832-71-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2364-167-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2364-157-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2364-213-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2364-249-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2364-178-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2796-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2796-149-0x0000000003460000-0x00000000034B3000-memory.dmp

Filesize
332KB

Download
memory/2796-148-0x0000000003460000-0x00000000034B3000-memory.dmp

Filesize
332KB

Download
memory/2796-147-0x0000000003460000-0x00000000034B3000-memory.dmp

Filesize
332KB

Download
memory/2796-146-0x0000000003460000-0x00000000034B3000-memory.dmp

Filesize
332KB

Download
memory/2796-154-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2796-150-0x0000000003460000-0x00000000034B3000-memory.dmp

Filesize
332KB

Download
memory/2796-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2796-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2796-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2796-212-0x0000000003460000-0x00000000034B3000-memory.dmp

Filesize
332KB

Download
memory/2796-252-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2796-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2796-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2796-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2796-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads