modiloader | 51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d

Analysis

max time kernel
149s
max time network
121s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
10-01-2025 20:57

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General

Target

51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe
Size

90KB
MD5

bb17598e1a4e704cb59a4296b59a9689
SHA1

e805fb1545b68d65a78810d6ae14e2b97175f0c0
SHA256

51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d
SHA512

f1a1e4e973f5e62080f332b754c34f26d93b1afc339e45db349d63e539bfb259a0e35b9bd658a1dcc9e250dca87ae25f67e30f1ad1e2a8c93ce42b3aca917201
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDN:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3T

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/3016-263-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2836	csrsll.exe
972	csrsll.exe
3016	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
900	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe
900	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe
900	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe
900	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe
900	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.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-1-5-21-2703099537-420551529-3771253338-1000\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 2120 set thread context of 900	2120	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	30
PID 2836 set thread context of 972	2836	csrsll.exe	35
PID 2836 set thread context of 3016	2836	csrsll.exe	36

UPX packed file 22 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2120-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2120-92-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2120-87-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/900-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2120-103-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/900-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/900-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/900-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/900-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2120-82-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2120-79-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2120-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/900-108-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/900-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000c00000001225e-133.dat	upx
behavioral1/memory/900-154-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2836-218-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3016-249-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2836-253-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/900-256-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/972-260-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3016-263-0x0000000000400000-0x0000000000414000-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	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.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	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2120	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe
900	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe
2836	csrsll.exe
972	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 900	2120	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	30
PID 2120 wrote to memory of 900	2120	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	30
PID 2120 wrote to memory of 900	2120	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	30
PID 2120 wrote to memory of 900	2120	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	30
PID 2120 wrote to memory of 900	2120	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	30
PID 2120 wrote to memory of 900	2120	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	30
PID 2120 wrote to memory of 900	2120	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	30
PID 2120 wrote to memory of 900	2120	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	30
PID 900 wrote to memory of 1932	900	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	31
PID 900 wrote to memory of 1932	900	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	31
PID 900 wrote to memory of 1932	900	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	31
PID 900 wrote to memory of 1932	900	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	31
PID 1932 wrote to memory of 2840	1932	cmd.exe	33
PID 1932 wrote to memory of 2840	1932	cmd.exe	33
PID 1932 wrote to memory of 2840	1932	cmd.exe	33
PID 1932 wrote to memory of 2840	1932	cmd.exe	33
PID 900 wrote to memory of 2836	900	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	34
PID 900 wrote to memory of 2836	900	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	34
PID 900 wrote to memory of 2836	900	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	34
PID 900 wrote to memory of 2836	900	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	34
PID 2836 wrote to memory of 972	2836	csrsll.exe	35
PID 2836 wrote to memory of 972	2836	csrsll.exe	35
PID 2836 wrote to memory of 972	2836	csrsll.exe	35
PID 2836 wrote to memory of 972	2836	csrsll.exe	35
PID 2836 wrote to memory of 972	2836	csrsll.exe	35
PID 2836 wrote to memory of 972	2836	csrsll.exe	35
PID 2836 wrote to memory of 972	2836	csrsll.exe	35
PID 2836 wrote to memory of 972	2836	csrsll.exe	35
PID 2836 wrote to memory of 3016	2836	csrsll.exe	36
PID 2836 wrote to memory of 3016	2836	csrsll.exe	36
PID 2836 wrote to memory of 3016	2836	csrsll.exe	36
PID 2836 wrote to memory of 3016	2836	csrsll.exe	36
PID 2836 wrote to memory of 3016	2836	csrsll.exe	36
PID 2836 wrote to memory of 3016	2836	csrsll.exe	36
PID 2836 wrote to memory of 3016	2836	csrsll.exe	36
PID 2836 wrote to memory of 3016	2836	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe
"C:\Users\Admin\AppData\Local\Temp\51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Users\Admin\AppData\Local\Temp\51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe
  "C:\Users\Admin\AppData\Local\Temp\51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:900
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\DRQCK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1932
  - - 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:2840
- - 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:2836
  - - 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:972
  - - 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:3016

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\DRQCK.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
6a7797a5e0ca6b2c69a02d07eba431e2

SHA1
8dceeae156fb427e38a82ed0687097763750d887

SHA256
8e23f46f40cabdc682e2907312ec17529d8cf8f7db410add3374aa5bbffcec25

SHA512
054da7b3678629ee846ac7e9b06043c761986511469f1059acc89a09b51b2a3a84822efb2c9536bfb79e87d62b0882231f213977ef94ff14adb272cb3f2ba672

Download Submit
memory/900-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/900-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/900-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/900-243-0x0000000002660000-0x00000000026B3000-memory.dmp

Filesize
332KB

Download
memory/900-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/900-154-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/900-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/900-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/900-108-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/900-248-0x0000000002800000-0x0000000002853000-memory.dmp

Filesize
332KB

Download
memory/900-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/900-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/900-147-0x0000000002660000-0x00000000026B3000-memory.dmp

Filesize
332KB

Download
memory/900-148-0x0000000002800000-0x0000000002853000-memory.dmp

Filesize
332KB

Download
memory/900-149-0x0000000002800000-0x0000000002853000-memory.dmp

Filesize
332KB

Download
memory/900-246-0x0000000002800000-0x0000000002853000-memory.dmp

Filesize
332KB

Download
memory/900-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/972-260-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2120-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2120-103-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2120-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2120-29-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2120-41-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2120-61-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/2120-71-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2120-79-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2120-80-0x00000000003A0000-0x00000000003A2000-memory.dmp

Filesize
8KB

Download
memory/2120-82-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2120-153-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2120-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2120-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2120-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2120-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2120-92-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2120-87-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2836-253-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2836-167-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2836-218-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2836-178-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2836-157-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/3016-249-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3016-263-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads