modiloader | 4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4

Analysis

max time kernel
120s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
20-12-2024 03:31

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General

Target

4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe
Size

90KB
MD5

30e2d47e8dea90d2326cac387f7e08d0
SHA1

3d4ebd4b923931097afbb5111336d1c2d2c2fa63
SHA256

4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4
SHA512

e6fcb974a48ad886b8fe44ac4922b76d89356a9f49b3237c77d57f52b9de1266580b8f45ac04b91ad8aab920416580539797ac08372ebad402288cd13c5a94fe
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDC: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 1 IoCs

resource	yara_rule
behavioral1/memory/1548-260-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2936	csrsll.exe
2292	csrsll.exe
1548	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2564	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe
2564	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe
2564	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe
2564	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe
2564	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.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-1-5-21-3551809350-4263495960-1443967649-1000\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 2960 set thread context of 2564	2960	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe	30
PID 2936 set thread context of 2292	2936	csrsll.exe	35
PID 2936 set thread context of 1548	2936	csrsll.exe	36

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2960-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2960-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2960-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2564-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2564-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2564-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2960-103-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2564-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2564-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2564-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000a0000000120fb-148.dat	upx
behavioral1/memory/2564-151-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2936-212-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1548-246-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2564-256-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2936-252-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2292-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1548-260-0x0000000000400000-0x0000000000414000-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	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2960	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe
2564	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe
2936	csrsll.exe
2292	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2960 wrote to memory of 2564	2960	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe	30
PID 2960 wrote to memory of 2564	2960	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe	30
PID 2960 wrote to memory of 2564	2960	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe	30
PID 2960 wrote to memory of 2564	2960	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe	30
PID 2960 wrote to memory of 2564	2960	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe	30
PID 2960 wrote to memory of 2564	2960	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe	30
PID 2960 wrote to memory of 2564	2960	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe	30
PID 2960 wrote to memory of 2564	2960	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe	30
PID 2564 wrote to memory of 3028	2564	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe	31
PID 2564 wrote to memory of 3028	2564	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe	31
PID 2564 wrote to memory of 3028	2564	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe	31
PID 2564 wrote to memory of 3028	2564	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe	31
PID 3028 wrote to memory of 2904	3028	cmd.exe	33
PID 3028 wrote to memory of 2904	3028	cmd.exe	33
PID 3028 wrote to memory of 2904	3028	cmd.exe	33
PID 3028 wrote to memory of 2904	3028	cmd.exe	33
PID 2564 wrote to memory of 2936	2564	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe	34
PID 2564 wrote to memory of 2936	2564	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe	34
PID 2564 wrote to memory of 2936	2564	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe	34
PID 2564 wrote to memory of 2936	2564	4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe	34
PID 2936 wrote to memory of 2292	2936	csrsll.exe	35
PID 2936 wrote to memory of 2292	2936	csrsll.exe	35
PID 2936 wrote to memory of 2292	2936	csrsll.exe	35
PID 2936 wrote to memory of 2292	2936	csrsll.exe	35
PID 2936 wrote to memory of 2292	2936	csrsll.exe	35
PID 2936 wrote to memory of 2292	2936	csrsll.exe	35
PID 2936 wrote to memory of 2292	2936	csrsll.exe	35
PID 2936 wrote to memory of 2292	2936	csrsll.exe	35
PID 2936 wrote to memory of 1548	2936	csrsll.exe	36
PID 2936 wrote to memory of 1548	2936	csrsll.exe	36
PID 2936 wrote to memory of 1548	2936	csrsll.exe	36
PID 2936 wrote to memory of 1548	2936	csrsll.exe	36
PID 2936 wrote to memory of 1548	2936	csrsll.exe	36
PID 2936 wrote to memory of 1548	2936	csrsll.exe	36
PID 2936 wrote to memory of 1548	2936	csrsll.exe	36
PID 2936 wrote to memory of 1548	2936	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe
"C:\Users\Admin\AppData\Local\Temp\4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2960
- C:\Users\Admin\AppData\Local\Temp\4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe
  "C:\Users\Admin\AppData\Local\Temp\4d95ba2778134ece5620414b41fbfa9f1d80bb13ed4111e6a9a31ec3e93289a4N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2564
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\BDXTO.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3028
  - - 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:2904
- - 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:2936
  - - 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:2292
  - - 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:1548

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\BDXTO.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
6fb927c1e46f59c99913422dfd5ed632

SHA1
053fd5267cb586920ea67c09ab5bc6942231da73

SHA256
4241bee87dbe9808448b6c86d4bf64cb9a7e948114af40315a36bd3c098e631b

SHA512
ee6a212639efedb4f3a21c0b4fda5b6eecb08984b80680087c3725a1de9aaf3443aa6cde19ce187409cd3a1b0f52cc08cbfb87744d05089355e7d4047ab93cd0

Download Submit
memory/1548-260-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1548-246-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2292-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2564-209-0x00000000034C0000-0x0000000003513000-memory.dmp

Filesize
332KB

Download
memory/2564-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2564-146-0x00000000034C0000-0x0000000003513000-memory.dmp

Filesize
332KB

Download
memory/2564-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2564-239-0x00000000034C0000-0x0000000003513000-memory.dmp

Filesize
332KB

Download
memory/2564-240-0x00000000034C0000-0x0000000003513000-memory.dmp

Filesize
332KB

Download
memory/2564-147-0x00000000034C0000-0x0000000003513000-memory.dmp

Filesize
332KB

Download
memory/2564-151-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2564-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2564-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2564-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2564-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2564-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2564-145-0x00000000034C0000-0x0000000003513000-memory.dmp

Filesize
332KB

Download
memory/2564-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2564-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2936-212-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2936-154-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2936-175-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2936-164-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2936-252-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2960-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2960-15-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2960-29-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2960-103-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2960-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2960-71-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/2960-90-0x0000000002810000-0x0000000002863000-memory.dmp

Filesize
332KB

Download
memory/2960-18-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2960-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2960-79-0x00000000003E0000-0x00000000003E2000-memory.dmp

Filesize
8KB

Download
memory/2960-41-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2960-61-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/2960-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2960-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads