modiloader | 083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d

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
26-12-2024 19:26

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General

Target

083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe
Size

90KB
MD5

3b5c8984ac874ed7d5e654e530ecf03c
SHA1

9fda4b088e0e59999d6c153f6a868320743b3ed1
SHA256

083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d
SHA512

8002ed6451c0242deb8917a6a4f1e238abb11f1580180df3aeb86d85109d786d82c01b7788a8a557f104d15a2ac0b2f26b0e4b53cda1fa535196bd2548acb000
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDk:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3O

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/3672-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3672-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3672-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3672-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe

Executes dropped EXE 3 IoCs

pid	Process
2864	csrsll.exe
4516	csrsll.exe
3672	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-1-5-21-3756129449-3121373848-4276368241-1000\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 4284 set thread context of 1004	4284	083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe	82
PID 2864 set thread context of 4516	2864	csrsll.exe	92
PID 2864 set thread context of 3672	2864	csrsll.exe	93

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4284-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4284-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1004-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1004-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4284-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1004-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000c000000023b87-29.dat	upx
behavioral2/memory/1004-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2864-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2864-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3672-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2864-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3672-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3672-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3672-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3672-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1004-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4516-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3672-62-0x0000000000400000-0x0000000000414000-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	083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.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	083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe
Token: SeDebugPrivilege	4516	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4284	083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe
1004	083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe
2864	csrsll.exe
4516	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4284 wrote to memory of 1004	4284	083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe	82
PID 4284 wrote to memory of 1004	4284	083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe	82
PID 4284 wrote to memory of 1004	4284	083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe	82
PID 4284 wrote to memory of 1004	4284	083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe	82
PID 4284 wrote to memory of 1004	4284	083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe	82
PID 4284 wrote to memory of 1004	4284	083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe	82
PID 4284 wrote to memory of 1004	4284	083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe	82
PID 4284 wrote to memory of 1004	4284	083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe	82
PID 1004 wrote to memory of 344	1004	083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe	83
PID 1004 wrote to memory of 344	1004	083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe	83
PID 1004 wrote to memory of 344	1004	083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe	83
PID 344 wrote to memory of 3420	344	cmd.exe	86
PID 344 wrote to memory of 3420	344	cmd.exe	86
PID 344 wrote to memory of 3420	344	cmd.exe	86
PID 1004 wrote to memory of 2864	1004	083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe	87
PID 1004 wrote to memory of 2864	1004	083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe	87
PID 1004 wrote to memory of 2864	1004	083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe	87
PID 2864 wrote to memory of 4516	2864	csrsll.exe	92
PID 2864 wrote to memory of 4516	2864	csrsll.exe	92
PID 2864 wrote to memory of 4516	2864	csrsll.exe	92
PID 2864 wrote to memory of 4516	2864	csrsll.exe	92
PID 2864 wrote to memory of 4516	2864	csrsll.exe	92
PID 2864 wrote to memory of 4516	2864	csrsll.exe	92
PID 2864 wrote to memory of 4516	2864	csrsll.exe	92
PID 2864 wrote to memory of 4516	2864	csrsll.exe	92
PID 2864 wrote to memory of 3672	2864	csrsll.exe	93
PID 2864 wrote to memory of 3672	2864	csrsll.exe	93
PID 2864 wrote to memory of 3672	2864	csrsll.exe	93
PID 2864 wrote to memory of 3672	2864	csrsll.exe	93
PID 2864 wrote to memory of 3672	2864	csrsll.exe	93
PID 2864 wrote to memory of 3672	2864	csrsll.exe	93
PID 2864 wrote to memory of 3672	2864	csrsll.exe	93
PID 2864 wrote to memory of 3672	2864	csrsll.exe	93

C:\Users\Admin\AppData\Local\Temp\083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe
"C:\Users\Admin\AppData\Local\Temp\083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4284
- C:\Users\Admin\AppData\Local\Temp\083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe
  "C:\Users\Admin\AppData\Local\Temp\083418064045745d565b15e515d27d480f4802d92d49ab661b9574d536caa73d.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1004
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\IVWJP.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:344
  - - 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:3420
- - 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:2864
  - - 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:4516
  - - 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:3672

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\IVWJP.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
541c7b62db7944e14e25857685d58f1d

SHA1
95bbe985ee99eb23da592c49ba2778310eb37d77

SHA256
5d605d47fc5c58d28fe97497222af0f707f776770f9d2291474827df381bddbf

SHA512
4851dadddb5496469982f2caae27edecc8eb99568ee8047982094a17034d12d06d5602717bdfd50e4ce8fbfe6ae4e1947fa05207b6428fa4e192849637d3bfe6

Download Submit
memory/1004-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1004-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1004-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1004-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1004-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2864-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2864-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2864-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3672-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3672-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3672-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3672-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3672-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3672-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4284-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4284-3-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download
memory/4284-6-0x0000000002200000-0x0000000002202000-memory.dmp

Filesize
8KB

Download
memory/4284-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4284-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4284-5-0x00000000021F0000-0x00000000021F2000-memory.dmp

Filesize
8KB

Download
memory/4516-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads