modiloader | fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4

Analysis

max time kernel
149s
max time network
123s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
10-12-2024 02:37

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General

Target

fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe
Size

90KB
MD5

4b7bfed82859e30da1a1aa6eef89825e
SHA1

9755442eb0a45c15c37f7f28981176f4681a9303
SHA256

fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4
SHA512

97c9cbd70f83a46c1fa266cc71a7a4d6c21e3d568a3ae171f9ae580093e906b67502dd173410d49f29679fba58111b221d799ad379c15041b52dd9ca5c7a6d4e
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDb:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3B

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/1996-254-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/1996-256-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
3016	csrsll.exe
1944	csrsll.exe
1996	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2688	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe
2688	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe
2688	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe
2688	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe
2688	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.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-1-5-21-1163522206-1469769407-485553996-1000\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 1956 set thread context of 2688	1956	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	31
PID 3016 set thread context of 1944	3016	csrsll.exe	36
PID 3016 set thread context of 1996	3016	csrsll.exe	37

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1956-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1956-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1956-104-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2688-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2688-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2688-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2688-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2688-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2688-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1956-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x000a0000000164b1-129.dat	upx
behavioral1/memory/2688-131-0x0000000003490000-0x00000000034E3000-memory.dmp	upx
behavioral1/memory/2688-151-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3016-211-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2688-252-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1996-254-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1944-253-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3016-249-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1944-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1996-256-0x0000000000400000-0x0000000000414000-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	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe
Token: SeDebugPrivilege	1944	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1956	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe
2688	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe
3016	csrsll.exe
1944	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 2688	1956	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	31
PID 1956 wrote to memory of 2688	1956	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	31
PID 1956 wrote to memory of 2688	1956	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	31
PID 1956 wrote to memory of 2688	1956	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	31
PID 1956 wrote to memory of 2688	1956	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	31
PID 1956 wrote to memory of 2688	1956	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	31
PID 1956 wrote to memory of 2688	1956	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	31
PID 1956 wrote to memory of 2688	1956	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	31
PID 2688 wrote to memory of 3048	2688	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	32
PID 2688 wrote to memory of 3048	2688	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	32
PID 2688 wrote to memory of 3048	2688	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	32
PID 2688 wrote to memory of 3048	2688	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	32
PID 3048 wrote to memory of 2900	3048	cmd.exe	34
PID 3048 wrote to memory of 2900	3048	cmd.exe	34
PID 3048 wrote to memory of 2900	3048	cmd.exe	34
PID 3048 wrote to memory of 2900	3048	cmd.exe	34
PID 2688 wrote to memory of 3016	2688	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	35
PID 2688 wrote to memory of 3016	2688	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	35
PID 2688 wrote to memory of 3016	2688	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	35
PID 2688 wrote to memory of 3016	2688	fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe	35
PID 3016 wrote to memory of 1944	3016	csrsll.exe	36
PID 3016 wrote to memory of 1944	3016	csrsll.exe	36
PID 3016 wrote to memory of 1944	3016	csrsll.exe	36
PID 3016 wrote to memory of 1944	3016	csrsll.exe	36
PID 3016 wrote to memory of 1944	3016	csrsll.exe	36
PID 3016 wrote to memory of 1944	3016	csrsll.exe	36
PID 3016 wrote to memory of 1944	3016	csrsll.exe	36
PID 3016 wrote to memory of 1944	3016	csrsll.exe	36
PID 3016 wrote to memory of 1996	3016	csrsll.exe	37
PID 3016 wrote to memory of 1996	3016	csrsll.exe	37
PID 3016 wrote to memory of 1996	3016	csrsll.exe	37
PID 3016 wrote to memory of 1996	3016	csrsll.exe	37
PID 3016 wrote to memory of 1996	3016	csrsll.exe	37
PID 3016 wrote to memory of 1996	3016	csrsll.exe	37
PID 3016 wrote to memory of 1996	3016	csrsll.exe	37
PID 3016 wrote to memory of 1996	3016	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe
"C:\Users\Admin\AppData\Local\Temp\fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Users\Admin\AppData\Local\Temp\fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe
  "C:\Users\Admin\AppData\Local\Temp\fc6df90de086608a312b59e8b1ce49b7b6de8bcee018fcc41b1194a31e493ae4.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2688
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\OBDXU.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3048
  - - 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:2900
- - 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:3016
  - - 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:1944
  - - 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:1996

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\OBDXU.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
cb1b45efd5e6862ae44f43b2c6c55a7a

SHA1
095764dbca93800c359a46d3b0626f22ec2d5b77

SHA256
9e0f1d417b5d9a67a7d8dba16386810a8fac80aee4ce8553d097bd880a3cb4ed

SHA512
138a9e1954619c7b3c0a6076a2d9e9524d222416c56d9e5f80dbb1a7afbc9ebd40b0e6d03c4e60593404a5cf9e361a4b6310b15b9c366ead7e949598b9126097

Download Submit
memory/1944-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1944-253-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1956-104-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1956-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1956-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/1956-71-0x0000000000300000-0x0000000000301000-memory.dmp

Filesize
4KB

Download
memory/1956-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1956-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1956-79-0x0000000000320000-0x0000000000322000-memory.dmp

Filesize
8KB

Download
memory/1956-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1956-61-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/1956-41-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/1956-29-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1956-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1956-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1996-254-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1996-256-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2688-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2688-151-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2688-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2688-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2688-131-0x0000000003490000-0x00000000034E3000-memory.dmp

Filesize
332KB

Download
memory/2688-147-0x0000000003490000-0x00000000034E3000-memory.dmp

Filesize
332KB

Download
memory/2688-146-0x0000000003490000-0x00000000034E3000-memory.dmp

Filesize
332KB

Download
memory/2688-145-0x0000000003490000-0x00000000034E3000-memory.dmp

Filesize
332KB

Download
memory/2688-144-0x0000000003490000-0x00000000034E3000-memory.dmp

Filesize
332KB

Download
memory/2688-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2688-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2688-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2688-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2688-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2688-252-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3016-164-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/3016-175-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/3016-249-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3016-211-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3016-154-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads