modiloader | d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6b

Analysis

max time kernel
119s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 08:32

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General

Target

d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe
Size

90KB
MD5

c5f62b1c216574b7ba8a84b1db371490
SHA1

768150c38a9accb65ed3631926f01e5fa725d0ac
SHA256

d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6b
SHA512

be271a9e5d5f43a7f51042b8e02216d6125f990fa98729cd5414a4baa7d5c0b0dde47b67b23b48e6ec475181bbed6989b21699d73ed74923761f485e30d5522a
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDa:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3I

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/664-250-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/664-260-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
468	csrsll.exe
1076	csrsll.exe
664	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
776	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe
776	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe
776	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe
776	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe
776	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.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-1-5-21-3063565911-2056067323-3330884624-1000\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 2892 set thread context of 776	2892	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	30
PID 468 set thread context of 1076	468	csrsll.exe	35
PID 468 set thread context of 664	468	csrsll.exe	36

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2892-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2892-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2892-90-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2892-79-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2892-102-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/776-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/776-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/776-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/776-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/776-96-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/776-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0009000000012117-132.dat	upx
behavioral1/memory/468-149-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/776-153-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/468-214-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/776-211-0x0000000003310000-0x0000000003363000-memory.dmp	upx
behavioral1/memory/776-256-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/468-252-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/664-250-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1076-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/664-260-0x0000000000400000-0x0000000000414000-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	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.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

description	pid	Process
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe
Token: SeDebugPrivilege	1076	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2892	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe
776	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe
468	csrsll.exe
1076	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2892 wrote to memory of 776	2892	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	30
PID 2892 wrote to memory of 776	2892	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	30
PID 2892 wrote to memory of 776	2892	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	30
PID 2892 wrote to memory of 776	2892	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	30
PID 2892 wrote to memory of 776	2892	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	30
PID 2892 wrote to memory of 776	2892	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	30
PID 2892 wrote to memory of 776	2892	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	30
PID 2892 wrote to memory of 776	2892	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	30
PID 776 wrote to memory of 2848	776	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	31
PID 776 wrote to memory of 2848	776	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	31
PID 776 wrote to memory of 2848	776	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	31
PID 776 wrote to memory of 2848	776	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	31
PID 2848 wrote to memory of 1532	2848	cmd.exe	33
PID 2848 wrote to memory of 1532	2848	cmd.exe	33
PID 2848 wrote to memory of 1532	2848	cmd.exe	33
PID 2848 wrote to memory of 1532	2848	cmd.exe	33
PID 776 wrote to memory of 468	776	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	34
PID 776 wrote to memory of 468	776	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	34
PID 776 wrote to memory of 468	776	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	34
PID 776 wrote to memory of 468	776	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	34
PID 468 wrote to memory of 1076	468	csrsll.exe	35
PID 468 wrote to memory of 1076	468	csrsll.exe	35
PID 468 wrote to memory of 1076	468	csrsll.exe	35
PID 468 wrote to memory of 1076	468	csrsll.exe	35
PID 468 wrote to memory of 1076	468	csrsll.exe	35
PID 468 wrote to memory of 1076	468	csrsll.exe	35
PID 468 wrote to memory of 1076	468	csrsll.exe	35
PID 468 wrote to memory of 1076	468	csrsll.exe	35
PID 468 wrote to memory of 664	468	csrsll.exe	36
PID 468 wrote to memory of 664	468	csrsll.exe	36
PID 468 wrote to memory of 664	468	csrsll.exe	36
PID 468 wrote to memory of 664	468	csrsll.exe	36
PID 468 wrote to memory of 664	468	csrsll.exe	36
PID 468 wrote to memory of 664	468	csrsll.exe	36
PID 468 wrote to memory of 664	468	csrsll.exe	36
PID 468 wrote to memory of 664	468	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe
"C:\Users\Admin\AppData\Local\Temp\d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2892
- C:\Users\Admin\AppData\Local\Temp\d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe
  "C:\Users\Admin\AppData\Local\Temp\d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:776
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\GCYXB.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2848
  - - 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:1532
- - 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:468
  - - 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:1076
  - - 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:664

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\GCYXB.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
2ce5a5221ce59bfb05f458ed8907b144

SHA1
3b28d270abcb16f0fdad818c708c71498d38a8e7

SHA256
e538488a1f22c0a50b92ec54ce0d2d000a5001e3e50683859ed3c96804439414

SHA512
a687c719ed9d8a9e3c06f0ad6057fa3730149b5aad29716dd7bb45303791ff436ef0ab7f3c9f4d86aa317c1f8d5a1a8a304f0f67657e4c81cc4c717746decc09

Download Submit
memory/468-252-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/468-166-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/468-177-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/468-214-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/468-156-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/468-149-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/664-260-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/664-250-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/776-98-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/776-150-0x0000000003310000-0x0000000003363000-memory.dmp

Filesize
332KB

Download
memory/776-247-0x0000000003310000-0x0000000003363000-memory.dmp

Filesize
332KB

Download
memory/776-251-0x0000000003310000-0x0000000003363000-memory.dmp

Filesize
332KB

Download
memory/776-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/776-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/776-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/776-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/776-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/776-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/776-211-0x0000000003310000-0x0000000003363000-memory.dmp

Filesize
332KB

Download
memory/776-96-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/776-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/776-153-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/776-147-0x0000000003310000-0x0000000003363000-memory.dmp

Filesize
332KB

Download
memory/776-148-0x0000000003310000-0x0000000003363000-memory.dmp

Filesize
332KB

Download
memory/1076-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2892-16-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2892-102-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2892-91-0x00000000023B0000-0x0000000002403000-memory.dmp

Filesize
332KB

Download
memory/2892-61-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2892-41-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2892-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2892-90-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2892-29-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2892-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2892-14-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2892-71-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2892-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2892-79-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2892-80-0x0000000000340000-0x0000000000342000-memory.dmp

Filesize
8KB

Download
memory/2892-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads