modiloader | 049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae

Analysis

max time kernel
149s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-12-2024 19:28

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General

Target

049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe
Size

90KB
MD5

5d98f6ec9f83a91d962aa757b548aa6f
SHA1

fd805b8de79f54e37ef1ad17e74445d361579dc4
SHA256

049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae
SHA512

3b3f7bff70cf690d694238cc8b73d729839544d9ca7a67cc81525ecd8d3ccb8fe4059b67b4d42c9b597a9f86bfd23b309cdec5abccfd92537cb963538f25e9e2
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 2 IoCs

resource	yara_rule
behavioral1/memory/2020-254-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/2020-261-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2580	csrsll.exe
1632	csrsll.exe
2020	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
3004	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe
3004	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe
3004	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe
3004	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe
3004	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.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-1-5-21-4177215427-74451935-3209572229-1000\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 3068 set thread context of 3004	3068	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	30
PID 2580 set thread context of 1632	2580	csrsll.exe	35
PID 2580 set thread context of 2020	2580	csrsll.exe	36

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3068-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3068-92-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3068-83-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3068-82-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3068-79-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3068-63-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3004-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3004-108-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3004-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3068-105-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3004-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3004-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3004-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x00090000000120f9-149.dat	upx
behavioral1/memory/3004-152-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2580-213-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2020-254-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2580-252-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3004-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1632-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2020-261-0x0000000000400000-0x0000000000414000-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	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	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3068	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe
3004	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe
2580	csrsll.exe
1632	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 3068 wrote to memory of 3004	3068	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	30
PID 3068 wrote to memory of 3004	3068	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	30
PID 3068 wrote to memory of 3004	3068	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	30
PID 3068 wrote to memory of 3004	3068	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	30
PID 3068 wrote to memory of 3004	3068	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	30
PID 3068 wrote to memory of 3004	3068	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	30
PID 3068 wrote to memory of 3004	3068	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	30
PID 3068 wrote to memory of 3004	3068	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	30
PID 3004 wrote to memory of 2420	3004	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	31
PID 3004 wrote to memory of 2420	3004	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	31
PID 3004 wrote to memory of 2420	3004	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	31
PID 3004 wrote to memory of 2420	3004	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	31
PID 2420 wrote to memory of 924	2420	cmd.exe	33
PID 2420 wrote to memory of 924	2420	cmd.exe	33
PID 2420 wrote to memory of 924	2420	cmd.exe	33
PID 2420 wrote to memory of 924	2420	cmd.exe	33
PID 3004 wrote to memory of 2580	3004	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	34
PID 3004 wrote to memory of 2580	3004	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	34
PID 3004 wrote to memory of 2580	3004	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	34
PID 3004 wrote to memory of 2580	3004	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	34
PID 2580 wrote to memory of 1632	2580	csrsll.exe	35
PID 2580 wrote to memory of 1632	2580	csrsll.exe	35
PID 2580 wrote to memory of 1632	2580	csrsll.exe	35
PID 2580 wrote to memory of 1632	2580	csrsll.exe	35
PID 2580 wrote to memory of 1632	2580	csrsll.exe	35
PID 2580 wrote to memory of 1632	2580	csrsll.exe	35
PID 2580 wrote to memory of 1632	2580	csrsll.exe	35
PID 2580 wrote to memory of 1632	2580	csrsll.exe	35
PID 2580 wrote to memory of 2020	2580	csrsll.exe	36
PID 2580 wrote to memory of 2020	2580	csrsll.exe	36
PID 2580 wrote to memory of 2020	2580	csrsll.exe	36
PID 2580 wrote to memory of 2020	2580	csrsll.exe	36
PID 2580 wrote to memory of 2020	2580	csrsll.exe	36
PID 2580 wrote to memory of 2020	2580	csrsll.exe	36
PID 2580 wrote to memory of 2020	2580	csrsll.exe	36
PID 2580 wrote to memory of 2020	2580	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe
"C:\Users\Admin\AppData\Local\Temp\049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3068
- C:\Users\Admin\AppData\Local\Temp\049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe
  "C:\Users\Admin\AppData\Local\Temp\049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3004
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\PTFDH.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2420
  - - 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:924
- - 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:2580
  - - 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:1632
  - - 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:2020

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\PTFDH.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
5f0f2c2f871415eafe2450ca42ae11cf

SHA1
8127762964bd810de121d21503416501825d3550

SHA256
9d5727136c264b59e4d296b04aa9dfccfb4113cca01d5160b693b30d51121656

SHA512
b70dae31b30841f6f1c6b3d6fa94e131efc5ac7ced99dd0738a41cb6aad01563a0ac66b672f556f60b7751df9a95d4e5023598e5f841203ae82d5b652c47e10e

Download Submit
memory/1632-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2020-261-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2020-254-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2580-252-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2580-176-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/2580-213-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2580-165-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2580-155-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download
memory/3004-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3004-148-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/3004-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3004-240-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/3004-253-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/3004-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3004-108-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3004-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3004-210-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/3004-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3004-152-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3004-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3004-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3004-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3004-147-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/3068-105-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3068-82-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3068-83-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3068-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3068-71-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/3068-28-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/3068-60-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/3068-92-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3068-40-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/3068-15-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/3068-63-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3068-16-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/3068-79-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3068-80-0x00000000003E0000-0x00000000003E2000-memory.dmp

Filesize
8KB

Download
memory/3068-5-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/3068-3-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads