modiloader | dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24/11/2024, 21:49

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General

Target

dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe
Size

90KB
MD5

9762fb866c9e6f508b4d812150add229
SHA1

8dc6025d4288907ca0f360847a00da18fd4546b6
SHA256

dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c
SHA512

5c9737d1d0bbc5cc063809a063396bf0570696f212eb41474161f4a27b7f885013353e5212a9a436de4429d5848d4a5d5c1a49214ae720f1385401ce9b5769e5
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDs:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3G

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/1100-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1100-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1100-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1100-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe

Executes dropped EXE 3 IoCs

pid	Process
32	csrsll.exe
2084	csrsll.exe
1100	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-1-5-21-3442511616-637977696-3186306149-1000\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 2728 set thread context of 1140	2728	dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe	87
PID 32 set thread context of 2084	32	csrsll.exe	95
PID 32 set thread context of 1100	32	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2728-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2728-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1140-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1140-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2728-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1140-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023bb1-29.dat	upx
behavioral2/memory/1140-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/32-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/32-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1100-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1100-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1100-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1100-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/32-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1100-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1140-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2084-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1100-62-0x0000000000400000-0x0000000000414000-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	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	dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe
Token: SeDebugPrivilege	2084	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2728	dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe
1140	dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe
32	csrsll.exe
2084	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2728 wrote to memory of 1140	2728	dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe	87
PID 2728 wrote to memory of 1140	2728	dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe	87
PID 2728 wrote to memory of 1140	2728	dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe	87
PID 2728 wrote to memory of 1140	2728	dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe	87
PID 2728 wrote to memory of 1140	2728	dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe	87
PID 2728 wrote to memory of 1140	2728	dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe	87
PID 2728 wrote to memory of 1140	2728	dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe	87
PID 2728 wrote to memory of 1140	2728	dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe	87
PID 1140 wrote to memory of 3568	1140	dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe	88
PID 1140 wrote to memory of 3568	1140	dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe	88
PID 1140 wrote to memory of 3568	1140	dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe	88
PID 3568 wrote to memory of 2668	3568	cmd.exe	91
PID 3568 wrote to memory of 2668	3568	cmd.exe	91
PID 3568 wrote to memory of 2668	3568	cmd.exe	91
PID 1140 wrote to memory of 32	1140	dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe	92
PID 1140 wrote to memory of 32	1140	dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe	92
PID 1140 wrote to memory of 32	1140	dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe	92
PID 32 wrote to memory of 2084	32	csrsll.exe	95
PID 32 wrote to memory of 2084	32	csrsll.exe	95
PID 32 wrote to memory of 2084	32	csrsll.exe	95
PID 32 wrote to memory of 2084	32	csrsll.exe	95
PID 32 wrote to memory of 2084	32	csrsll.exe	95
PID 32 wrote to memory of 2084	32	csrsll.exe	95
PID 32 wrote to memory of 2084	32	csrsll.exe	95
PID 32 wrote to memory of 2084	32	csrsll.exe	95
PID 32 wrote to memory of 1100	32	csrsll.exe	96
PID 32 wrote to memory of 1100	32	csrsll.exe	96
PID 32 wrote to memory of 1100	32	csrsll.exe	96
PID 32 wrote to memory of 1100	32	csrsll.exe	96
PID 32 wrote to memory of 1100	32	csrsll.exe	96
PID 32 wrote to memory of 1100	32	csrsll.exe	96
PID 32 wrote to memory of 1100	32	csrsll.exe	96
PID 32 wrote to memory of 1100	32	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe
"C:\Users\Admin\AppData\Local\Temp\dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2728
- C:\Users\Admin\AppData\Local\Temp\dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe
  "C:\Users\Admin\AppData\Local\Temp\dcd5bb29477803d08528a5cec3f4297f49052178a941a9e69ee70ca6716d828c.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1140
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\CMSLB.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3568
  - - 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:2668
- - 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:32
  - - 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:2084
  - - 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:1100

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\CMSLB.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
aa7d7d82ef1b79e03f03fdbcfe53549c

SHA1
d8195cbaf34887170a8d8eb93838bdfb24b28b93

SHA256
0d960014c0e5fccefe923c2e70178eccdb0eb300e9dca03d4e3d64d40c85ae08

SHA512
d2e5151717b8f577ad4fcc7e7625952788b043429429a0e4129d5b4656f0dcb9f2c834e21f235caf15be29c3db0811f4a0c50a8cb987d0817fea38c4e604d5bc

Download Submit
memory/32-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/32-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/32-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1100-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1100-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1100-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1100-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1100-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1100-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1140-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1140-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1140-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1140-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1140-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1140-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2084-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2728-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2728-3-0x0000000002900000-0x0000000002902000-memory.dmp

Filesize
8KB

Download
memory/2728-4-0x0000000002910000-0x0000000002912000-memory.dmp

Filesize
8KB

Download
memory/2728-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2728-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2728-6-0x0000000002930000-0x0000000002932000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads