modiloader | bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93

Analysis

max time kernel
119s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-12-2024 23:14

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General

Target

bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe
Size

90KB
MD5

6690ce2b6e4bd5f705305ef10927e9b0
SHA1

4a42987613ad2331b9694720b30fd64283c30e29
SHA256

bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93
SHA512

96a74a7634bf96aff5c9ef2b70c4ef98b193b443b9b9919a6183ae7d088f649678816d17428adeea070cce53e580fd34bf328dcf376d032739ea054d91a54bf3
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDk:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3u

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 1 IoCs

resource	yara_rule
behavioral1/memory/2528-259-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1304	csrsll.exe
936	csrsll.exe
2528	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
3052	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe
3052	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe
3052	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe
3052	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe
3052	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.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-1-5-21-2872745919-2748461613-2989606286-1000\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 2644 set thread context of 3052	2644	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	30
PID 1304 set thread context of 936	1304	csrsll.exe	35
PID 1304 set thread context of 2528	1304	csrsll.exe	36

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2644-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2644-91-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2644-82-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2644-79-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2644-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3052-108-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3052-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3052-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2644-103-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3052-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3052-96-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3052-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0035000000016d64-134.dat	upx
behavioral1/memory/3052-153-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1304-215-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3052-242-0x0000000002810000-0x0000000002863000-memory.dmp	upx
behavioral1/memory/2528-248-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1304-250-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3052-254-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/936-256-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2528-259-0x0000000000400000-0x0000000000414000-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	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2644	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe
3052	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe
1304	csrsll.exe
936	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2644 wrote to memory of 3052	2644	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	30
PID 2644 wrote to memory of 3052	2644	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	30
PID 2644 wrote to memory of 3052	2644	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	30
PID 2644 wrote to memory of 3052	2644	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	30
PID 2644 wrote to memory of 3052	2644	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	30
PID 2644 wrote to memory of 3052	2644	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	30
PID 2644 wrote to memory of 3052	2644	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	30
PID 2644 wrote to memory of 3052	2644	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	30
PID 3052 wrote to memory of 1580	3052	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	31
PID 3052 wrote to memory of 1580	3052	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	31
PID 3052 wrote to memory of 1580	3052	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	31
PID 3052 wrote to memory of 1580	3052	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	31
PID 1580 wrote to memory of 1704	1580	cmd.exe	33
PID 1580 wrote to memory of 1704	1580	cmd.exe	33
PID 1580 wrote to memory of 1704	1580	cmd.exe	33
PID 1580 wrote to memory of 1704	1580	cmd.exe	33
PID 3052 wrote to memory of 1304	3052	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	34
PID 3052 wrote to memory of 1304	3052	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	34
PID 3052 wrote to memory of 1304	3052	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	34
PID 3052 wrote to memory of 1304	3052	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	34
PID 1304 wrote to memory of 936	1304	csrsll.exe	35
PID 1304 wrote to memory of 936	1304	csrsll.exe	35
PID 1304 wrote to memory of 936	1304	csrsll.exe	35
PID 1304 wrote to memory of 936	1304	csrsll.exe	35
PID 1304 wrote to memory of 936	1304	csrsll.exe	35
PID 1304 wrote to memory of 936	1304	csrsll.exe	35
PID 1304 wrote to memory of 936	1304	csrsll.exe	35
PID 1304 wrote to memory of 936	1304	csrsll.exe	35
PID 1304 wrote to memory of 2528	1304	csrsll.exe	36
PID 1304 wrote to memory of 2528	1304	csrsll.exe	36
PID 1304 wrote to memory of 2528	1304	csrsll.exe	36
PID 1304 wrote to memory of 2528	1304	csrsll.exe	36
PID 1304 wrote to memory of 2528	1304	csrsll.exe	36
PID 1304 wrote to memory of 2528	1304	csrsll.exe	36
PID 1304 wrote to memory of 2528	1304	csrsll.exe	36
PID 1304 wrote to memory of 2528	1304	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe
"C:\Users\Admin\AppData\Local\Temp\bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2644
- C:\Users\Admin\AppData\Local\Temp\bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe
  "C:\Users\Admin\AppData\Local\Temp\bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3052
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\EFBBW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1580
  - - 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:1704
- - 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:1304
  - - 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:936
  - - 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:2528

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\EFBBW.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
9b1781e3b9544efc201bd3909efd4d24

SHA1
f8a53534581c1acb5ada0857d5cbff6b81868d01

SHA256
38c14c1d68d25df9e19854d05cea6535d32331bedd65514a8fcaa3de2a4f5bc9

SHA512
1613d4fd30fb3a1c8e38e7dc81febcf5f5749eb46ef19e52f935342d0a0641ca43679fc913d18357098bca5809ab7be4a60b5bfbda89b97b1f2e208aa6f755ce

Download Submit
memory/936-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1304-156-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1304-177-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/1304-215-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1304-166-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1304-250-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2528-248-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2528-259-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2644-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2644-79-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2644-41-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2644-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2644-61-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/2644-71-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download
memory/2644-107-0x0000000002720000-0x0000000002773000-memory.dmp

Filesize
332KB

Download
memory/2644-29-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2644-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2644-103-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2644-80-0x0000000000390000-0x0000000000392000-memory.dmp

Filesize
8KB

Download
memory/2644-82-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2644-91-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2644-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2644-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2644-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/3052-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3052-148-0x0000000002810000-0x0000000002863000-memory.dmp

Filesize
332KB

Download
memory/3052-153-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3052-149-0x0000000002810000-0x0000000002863000-memory.dmp

Filesize
332KB

Download
memory/3052-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3052-96-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3052-98-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3052-242-0x0000000002810000-0x0000000002863000-memory.dmp

Filesize
332KB

Download
memory/3052-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3052-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3052-254-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3052-108-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3052-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads