modiloader | 0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f

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 19:29

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General

Target

0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe
Size

90KB
MD5

6fbc3abd61133bc098944b00d1c98d02
SHA1

bb3d3d7c0efc47950d1e0aac0153d8b49d95c38b
SHA256

0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f
SHA512

99ac3132a8058e0ca6a1bbdda5951ca8f4e6b898e92d29f2130ccbc21984ebe1725515dde7f961d4bb27ed300d0ebfde5c31eb972026e1eaa1af873c089af5d8
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

resource	yara_rule
behavioral2/memory/3568-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3568-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3568-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3568-62-0x0000000000400000-0x0000000000414000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe

Executes dropped EXE 3 IoCs

pid	Process
2444	csrsll.exe
728	csrsll.exe
3568	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-1-5-21-2878641211-696417878-3864914810-1000\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 4060 set thread context of 2768	4060	0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe	83
PID 2444 set thread context of 728	2444	csrsll.exe	100
PID 2444 set thread context of 3568	2444	csrsll.exe	101

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4060-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4060-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2768-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2768-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4060-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2768-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c7d-29.dat	upx
behavioral2/memory/2444-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2768-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2444-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2444-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3568-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3568-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3568-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3568-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2768-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3568-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2444-51-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/728-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3568-62-0x0000000000400000-0x0000000000414000-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	0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.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	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe
Token: SeDebugPrivilege	728	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4060	0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe
2768	0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe
2444	csrsll.exe
728	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4060 wrote to memory of 2768	4060	0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe	83
PID 4060 wrote to memory of 2768	4060	0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe	83
PID 4060 wrote to memory of 2768	4060	0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe	83
PID 4060 wrote to memory of 2768	4060	0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe	83
PID 4060 wrote to memory of 2768	4060	0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe	83
PID 4060 wrote to memory of 2768	4060	0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe	83
PID 4060 wrote to memory of 2768	4060	0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe	83
PID 4060 wrote to memory of 2768	4060	0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe	83
PID 2768 wrote to memory of 4120	2768	0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe	84
PID 2768 wrote to memory of 4120	2768	0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe	84
PID 2768 wrote to memory of 4120	2768	0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe	84
PID 4120 wrote to memory of 1392	4120	cmd.exe	90
PID 4120 wrote to memory of 1392	4120	cmd.exe	90
PID 4120 wrote to memory of 1392	4120	cmd.exe	90
PID 2768 wrote to memory of 2444	2768	0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe	91
PID 2768 wrote to memory of 2444	2768	0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe	91
PID 2768 wrote to memory of 2444	2768	0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe	91
PID 2444 wrote to memory of 728	2444	csrsll.exe	100
PID 2444 wrote to memory of 728	2444	csrsll.exe	100
PID 2444 wrote to memory of 728	2444	csrsll.exe	100
PID 2444 wrote to memory of 728	2444	csrsll.exe	100
PID 2444 wrote to memory of 728	2444	csrsll.exe	100
PID 2444 wrote to memory of 728	2444	csrsll.exe	100
PID 2444 wrote to memory of 728	2444	csrsll.exe	100
PID 2444 wrote to memory of 728	2444	csrsll.exe	100
PID 2444 wrote to memory of 3568	2444	csrsll.exe	101
PID 2444 wrote to memory of 3568	2444	csrsll.exe	101
PID 2444 wrote to memory of 3568	2444	csrsll.exe	101
PID 2444 wrote to memory of 3568	2444	csrsll.exe	101
PID 2444 wrote to memory of 3568	2444	csrsll.exe	101
PID 2444 wrote to memory of 3568	2444	csrsll.exe	101
PID 2444 wrote to memory of 3568	2444	csrsll.exe	101
PID 2444 wrote to memory of 3568	2444	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe
"C:\Users\Admin\AppData\Local\Temp\0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4060
- C:\Users\Admin\AppData\Local\Temp\0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe
  "C:\Users\Admin\AppData\Local\Temp\0958cce7b12f502fd108e1260eb6413a22fdd876ee1d0159b8b30907d558b97f.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2768
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BKYUS.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4120
  - - 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:1392
- - 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:2444
  - - 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:728
  - - 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:3568

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\BKYUS.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
c45a251102888748266c02e18c8d1925

SHA1
4948bf9200547fa335939928cefc0209494e59c9

SHA256
c8701ba443c685d9aad791f0d1c4131c85c0079a762265c7ee7a43835dadca17

SHA512
a695134aef231cefe65d76b741252ca735f65e5338f98db5aa497feaa77d3799415589c9cf45a7ba90e8b329df20e9c422d44c32bad3bcdc0278abce709b771c

Download Submit
memory/728-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2444-51-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2444-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2444-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2444-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2768-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2768-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2768-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2768-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2768-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3568-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3568-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3568-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3568-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3568-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3568-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4060-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4060-6-0x0000000002BA0000-0x0000000002BA2000-memory.dmp

Filesize
8KB

Download
memory/4060-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4060-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4060-4-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/4060-3-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads