modiloader | 800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5

Analysis

max time kernel
119s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-12-2024 01:30

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General

Target

800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe
Size

90KB
MD5

a72f46574d4538565450782909de8070
SHA1

5cbe5e61a947b20d698f37438696f10b7f8659ac
SHA256

800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5
SHA512

7a11b4b6ec4eda5cac38630d19ac48c05019fafa30bc19df4a8e38ef1e88f5a16a3d499d45ceb0c30d74c216abb3911f4fb8f11d155da7c2729845167c566d2e
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDI:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3q

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/3888-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3888-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3888-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3888-61-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe

Executes dropped EXE 3 IoCs

pid	Process
4808	csrsll.exe
112	csrsll.exe
3888	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-1-5-21-493223053-2004649691-1575712786-1000\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 4412 set thread context of 4612	4412	800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe	84
PID 4808 set thread context of 112	4808	csrsll.exe	102
PID 4808 set thread context of 3888	4808	csrsll.exe	103

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4412-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4412-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4612-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4612-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4612-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4412-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023c87-29.dat	upx
behavioral2/memory/4612-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4808-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4808-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3888-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3888-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3888-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3888-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3888-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4808-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4612-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/112-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3888-61-0x0000000000400000-0x0000000000414000-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	800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4412	800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe
4612	800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe
4808	csrsll.exe
112	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 4612	4412	800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe	84
PID 4412 wrote to memory of 4612	4412	800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe	84
PID 4412 wrote to memory of 4612	4412	800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe	84
PID 4412 wrote to memory of 4612	4412	800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe	84
PID 4412 wrote to memory of 4612	4412	800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe	84
PID 4412 wrote to memory of 4612	4412	800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe	84
PID 4412 wrote to memory of 4612	4412	800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe	84
PID 4412 wrote to memory of 4612	4412	800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe	84
PID 4612 wrote to memory of 1532	4612	800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe	85
PID 4612 wrote to memory of 1532	4612	800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe	85
PID 4612 wrote to memory of 1532	4612	800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe	85
PID 1532 wrote to memory of 4572	1532	cmd.exe	91
PID 1532 wrote to memory of 4572	1532	cmd.exe	91
PID 1532 wrote to memory of 4572	1532	cmd.exe	91
PID 4612 wrote to memory of 4808	4612	800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe	92
PID 4612 wrote to memory of 4808	4612	800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe	92
PID 4612 wrote to memory of 4808	4612	800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe	92
PID 4808 wrote to memory of 112	4808	csrsll.exe	102
PID 4808 wrote to memory of 112	4808	csrsll.exe	102
PID 4808 wrote to memory of 112	4808	csrsll.exe	102
PID 4808 wrote to memory of 112	4808	csrsll.exe	102
PID 4808 wrote to memory of 112	4808	csrsll.exe	102
PID 4808 wrote to memory of 112	4808	csrsll.exe	102
PID 4808 wrote to memory of 112	4808	csrsll.exe	102
PID 4808 wrote to memory of 112	4808	csrsll.exe	102
PID 4808 wrote to memory of 3888	4808	csrsll.exe	103
PID 4808 wrote to memory of 3888	4808	csrsll.exe	103
PID 4808 wrote to memory of 3888	4808	csrsll.exe	103
PID 4808 wrote to memory of 3888	4808	csrsll.exe	103
PID 4808 wrote to memory of 3888	4808	csrsll.exe	103
PID 4808 wrote to memory of 3888	4808	csrsll.exe	103
PID 4808 wrote to memory of 3888	4808	csrsll.exe	103
PID 4808 wrote to memory of 3888	4808	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe
"C:\Users\Admin\AppData\Local\Temp\800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4412
- C:\Users\Admin\AppData\Local\Temp\800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe
  "C:\Users\Admin\AppData\Local\Temp\800f32d668c8a7905ea40ee38811856e686b16da413ddd5e6ee5fc7330166ee5N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4612
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\LCXBY.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1532
  - - 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:4572
- - 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:4808
  - - 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:112
  - - 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:3888

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

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
d7b089b7903887cb89c63fbabfc5445f

SHA1
06305ff1ea1b4ae088c26e816b81fa6dc3241465

SHA256
7d8922256ab564af2eda2db2c1f28759fbf322c0e2a7ed66a0c8e19d3b846a2c

SHA512
6f76aa4efed67c75adb9f04ca3376b27ff163f931668690ddb967571956bc7a715efc26e8995f78445030555ab8d66f7a69c09367474e7ba495f516cf491f383

Download Submit
memory/112-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3888-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3888-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3888-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3888-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3888-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3888-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4412-6-0x0000000002CA0000-0x0000000002CA2000-memory.dmp

Filesize
8KB

Download
memory/4412-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4412-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4412-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4412-4-0x0000000002C60000-0x0000000002C62000-memory.dmp

Filesize
8KB

Download
memory/4412-3-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/4612-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4612-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4612-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4612-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4612-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4612-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4808-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4808-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4808-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads