modiloader | ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281e

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2024 07:46

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General

Target

ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe
Size

90KB
MD5

f2f4f8aa3fd090cfe667fcff31a1bb50
SHA1

cbb7ae98d07ecd265432ab3d1a1e511aac139022
SHA256

ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281e
SHA512

1057c08147ded52a15a6d62882106cd2cc57420aa79ef4e8318f3a1657f3127b268b9d1f587bf638169043b11b507731e4c1d76ee47009a3eda2274ddaa63736
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDm:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3c

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/3636-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3636-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3636-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3636-62-0x0000000000400000-0x0000000000414000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe

Executes dropped EXE 3 IoCs

pid	Process
4376	csrsll.exe
5056	csrsll.exe
3636	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-1-5-21-940901362-3608833189-1915618603-1000\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 1732 set thread context of 400	1732	ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe	88
PID 4376 set thread context of 5056	4376	csrsll.exe	101
PID 4376 set thread context of 3636	4376	csrsll.exe	102

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1732-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1732-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/400-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/400-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/400-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1732-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b91-29.dat	upx
behavioral2/memory/400-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4376-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4376-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3636-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3636-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3636-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4376-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3636-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3636-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/400-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5056-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3636-62-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe
Token: SeDebugPrivilege	5056	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1732	ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe
400	ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe
4376	csrsll.exe
5056	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 400	1732	ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe	88
PID 1732 wrote to memory of 400	1732	ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe	88
PID 1732 wrote to memory of 400	1732	ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe	88
PID 1732 wrote to memory of 400	1732	ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe	88
PID 1732 wrote to memory of 400	1732	ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe	88
PID 1732 wrote to memory of 400	1732	ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe	88
PID 1732 wrote to memory of 400	1732	ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe	88
PID 1732 wrote to memory of 400	1732	ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe	88
PID 400 wrote to memory of 2820	400	ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe	89
PID 400 wrote to memory of 2820	400	ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe	89
PID 400 wrote to memory of 2820	400	ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe	89
PID 2820 wrote to memory of 4508	2820	cmd.exe	93
PID 2820 wrote to memory of 4508	2820	cmd.exe	93
PID 2820 wrote to memory of 4508	2820	cmd.exe	93
PID 400 wrote to memory of 4376	400	ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe	94
PID 400 wrote to memory of 4376	400	ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe	94
PID 400 wrote to memory of 4376	400	ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe	94
PID 4376 wrote to memory of 5056	4376	csrsll.exe	101
PID 4376 wrote to memory of 5056	4376	csrsll.exe	101
PID 4376 wrote to memory of 5056	4376	csrsll.exe	101
PID 4376 wrote to memory of 5056	4376	csrsll.exe	101
PID 4376 wrote to memory of 5056	4376	csrsll.exe	101
PID 4376 wrote to memory of 5056	4376	csrsll.exe	101
PID 4376 wrote to memory of 5056	4376	csrsll.exe	101
PID 4376 wrote to memory of 5056	4376	csrsll.exe	101
PID 4376 wrote to memory of 3636	4376	csrsll.exe	102
PID 4376 wrote to memory of 3636	4376	csrsll.exe	102
PID 4376 wrote to memory of 3636	4376	csrsll.exe	102
PID 4376 wrote to memory of 3636	4376	csrsll.exe	102
PID 4376 wrote to memory of 3636	4376	csrsll.exe	102
PID 4376 wrote to memory of 3636	4376	csrsll.exe	102
PID 4376 wrote to memory of 3636	4376	csrsll.exe	102
PID 4376 wrote to memory of 3636	4376	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe
"C:\Users\Admin\AppData\Local\Temp\ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Users\Admin\AppData\Local\Temp\ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe
  "C:\Users\Admin\AppData\Local\Temp\ad5dc05eb1f3439334c9d6dae5404c603016c15bdfc4d9778c1d2a2f7f8f281eN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:400
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\VMABW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2820
  - - 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:4508
- - 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:4376
  - - 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:5056
  - - 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:3636

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\VMABW.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
a3e922c8932e7211e47be3a070801e08

SHA1
e22fb6a7942bed95cd87184df54a99a717fe7676

SHA256
a7257e8b0db3f1bf5fd1ad33ab243e71a2da5526d8737a357ac914bfa4a2156f

SHA512
a5859653219443246b593f85b1bbd4ef112b5fe29c9eaa109a24314dce52028653ef8bbb7f4f5d0d5ff808e6e4737cee1903f39aea09d02a3d7cd8c4b87c2436

Download Submit
memory/400-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/400-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/400-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/400-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/400-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1732-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1732-6-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/1732-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1732-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1732-4-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/1732-3-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/3636-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3636-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3636-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3636-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3636-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3636-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4376-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4376-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4376-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5056-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads