modiloader | 58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6

Analysis

max time kernel
118s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 02:31

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General

Target

58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe
Size

90KB
MD5

354934a80c643243c5d8c1cdba113ef0
SHA1

cf94442fd054450690aa0e3bd20a6888bb046971
SHA256

58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6
SHA512

93ef4990e422a2cc584e6bd0e5c61b3233f8dff870074bb40a60f4e0b678bb7246b09f70902f8935f12967b70acce8557c234b225bb257e1c1757e3d0fda7554
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDF:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE37

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/2132-254-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/2132-260-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
3016	csrsll.exe
1576	csrsll.exe
2132	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2044	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe
2044	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe
2044	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe
2044	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe
2044	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.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-1-5-21-312935884-697965778-3955649944-1000\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 2328 set thread context of 2044	2328	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe	31
PID 3016 set thread context of 1576	3016	csrsll.exe	36
PID 3016 set thread context of 2132	3016	csrsll.exe	37

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2328-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2328-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2328-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2044-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2044-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2044-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2044-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2044-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2328-106-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2044-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000a000000015cdd-131.dat	upx
behavioral1/memory/2044-152-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3016-213-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2044-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3016-256-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2132-254-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1576-253-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1576-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2132-260-0x0000000000400000-0x0000000000414000-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	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.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	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe
Token: SeDebugPrivilege	1576	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2328	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe
2044	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe
3016	csrsll.exe
1576	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 2044	2328	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe	31
PID 2328 wrote to memory of 2044	2328	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe	31
PID 2328 wrote to memory of 2044	2328	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe	31
PID 2328 wrote to memory of 2044	2328	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe	31
PID 2328 wrote to memory of 2044	2328	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe	31
PID 2328 wrote to memory of 2044	2328	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe	31
PID 2328 wrote to memory of 2044	2328	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe	31
PID 2328 wrote to memory of 2044	2328	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe	31
PID 2044 wrote to memory of 3048	2044	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe	32
PID 2044 wrote to memory of 3048	2044	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe	32
PID 2044 wrote to memory of 3048	2044	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe	32
PID 2044 wrote to memory of 3048	2044	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe	32
PID 3048 wrote to memory of 2988	3048	cmd.exe	34
PID 3048 wrote to memory of 2988	3048	cmd.exe	34
PID 3048 wrote to memory of 2988	3048	cmd.exe	34
PID 3048 wrote to memory of 2988	3048	cmd.exe	34
PID 2044 wrote to memory of 3016	2044	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe	35
PID 2044 wrote to memory of 3016	2044	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe	35
PID 2044 wrote to memory of 3016	2044	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe	35
PID 2044 wrote to memory of 3016	2044	58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe	35
PID 3016 wrote to memory of 1576	3016	csrsll.exe	36
PID 3016 wrote to memory of 1576	3016	csrsll.exe	36
PID 3016 wrote to memory of 1576	3016	csrsll.exe	36
PID 3016 wrote to memory of 1576	3016	csrsll.exe	36
PID 3016 wrote to memory of 1576	3016	csrsll.exe	36
PID 3016 wrote to memory of 1576	3016	csrsll.exe	36
PID 3016 wrote to memory of 1576	3016	csrsll.exe	36
PID 3016 wrote to memory of 1576	3016	csrsll.exe	36
PID 3016 wrote to memory of 2132	3016	csrsll.exe	37
PID 3016 wrote to memory of 2132	3016	csrsll.exe	37
PID 3016 wrote to memory of 2132	3016	csrsll.exe	37
PID 3016 wrote to memory of 2132	3016	csrsll.exe	37
PID 3016 wrote to memory of 2132	3016	csrsll.exe	37
PID 3016 wrote to memory of 2132	3016	csrsll.exe	37
PID 3016 wrote to memory of 2132	3016	csrsll.exe	37
PID 3016 wrote to memory of 2132	3016	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe
"C:\Users\Admin\AppData\Local\Temp\58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Users\Admin\AppData\Local\Temp\58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe
  "C:\Users\Admin\AppData\Local\Temp\58a45279db0413100669f9f86fa9c95637ea110ecca6551fff8990599e7f6bd6N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2044
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\RDBFA.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:2988
- - 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:1576
  - - 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:2132

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\RDBFA.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
0971031f32f98c7866e44d6868901ecc

SHA1
a27c96b77944159f2a368111a51964ac10b13372

SHA256
7fc78b828097cdfc3891eb67862617bf084624f82fb5a1715fc05572ed2d0dbc

SHA512
1a250cea11fb31da2134e8b2b8610e50102744ade42ca7f632f8ad7d06fbc95e6e774b6332360b252663d65d6f4c9e07dfa56f52563a87e1606cf739cafc4007

Download Submit
memory/1576-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1576-253-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2044-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2044-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2044-248-0x00000000030C0000-0x0000000003113000-memory.dmp

Filesize
332KB

Download
memory/2044-250-0x00000000030D0000-0x0000000003123000-memory.dmp

Filesize
332KB

Download
memory/2044-252-0x00000000030D0000-0x0000000003123000-memory.dmp

Filesize
332KB

Download
memory/2044-203-0x00000000030C0000-0x0000000003113000-memory.dmp

Filesize
332KB

Download
memory/2044-152-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2044-145-0x00000000030C0000-0x0000000003113000-memory.dmp

Filesize
332KB

Download
memory/2044-148-0x00000000030D0000-0x0000000003123000-memory.dmp

Filesize
332KB

Download
memory/2044-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2044-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2044-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2044-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2044-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2044-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2044-146-0x00000000030D0000-0x0000000003123000-memory.dmp

Filesize
332KB

Download
memory/2044-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2044-147-0x00000000030D0000-0x0000000003123000-memory.dmp

Filesize
332KB

Download
memory/2132-254-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2132-260-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2328-79-0x00000000003A0000-0x00000000003A2000-memory.dmp

Filesize
8KB

Download
memory/2328-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2328-106-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2328-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2328-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2328-103-0x00000000004A0000-0x00000000004F3000-memory.dmp

Filesize
332KB

Download
memory/2328-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2328-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2328-29-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2328-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2328-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2328-41-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2328-61-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2328-71-0x0000000000300000-0x0000000000301000-memory.dmp

Filesize
4KB

Download
memory/3016-176-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/3016-256-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3016-213-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3016-155-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/3016-165-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads