modiloader | d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37

Analysis

max time kernel
120s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04/12/2024, 00:58

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General

Target

d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe
Size

300KB
MD5

5b553bb30549211be9e171688690ebe0
SHA1

bcd8c66a959462cfb01cdd00742392cab80f82bb
SHA256

d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37
SHA512

40f8a5a5ae30ad7020805faac0ff3f29cd363623f8b18c7e619cfd807ddabd1fbf3a4fa22bdd11749a12d5261c4672c5235acbc2f528dfab44bf8760c0ffefb3
SSDEEP

3072:Ue2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38Gy:UsxD5cwohO+O1sVG0/pZ6iPC8I

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/896-254-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2068	csrsll.exe
960	csrsll.exe
896	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2532	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe
2532	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe
2532	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe
2532	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe
2532	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.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-1-5-21-1488793075-819845221-1497111674-1000\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 2532	2328	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	31
PID 2068 set thread context of 960	2068	csrsll.exe	36
PID 2068 set thread context of 896	2068	csrsll.exe	37

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2532-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2532-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2532-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2532-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2532-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2532-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/896-242-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2532-245-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/960-236-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2532-235-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/960-251-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/896-254-0x0000000000400000-0x0000000000414000-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	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2328	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe
2532	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe
2068	csrsll.exe
960	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 2532	2328	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	31
PID 2328 wrote to memory of 2532	2328	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	31
PID 2328 wrote to memory of 2532	2328	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	31
PID 2328 wrote to memory of 2532	2328	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	31
PID 2328 wrote to memory of 2532	2328	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	31
PID 2328 wrote to memory of 2532	2328	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	31
PID 2328 wrote to memory of 2532	2328	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	31
PID 2328 wrote to memory of 2532	2328	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	31
PID 2532 wrote to memory of 1064	2532	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	32
PID 2532 wrote to memory of 1064	2532	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	32
PID 2532 wrote to memory of 1064	2532	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	32
PID 2532 wrote to memory of 1064	2532	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	32
PID 1064 wrote to memory of 1672	1064	cmd.exe	34
PID 1064 wrote to memory of 1672	1064	cmd.exe	34
PID 1064 wrote to memory of 1672	1064	cmd.exe	34
PID 1064 wrote to memory of 1672	1064	cmd.exe	34
PID 2532 wrote to memory of 2068	2532	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	35
PID 2532 wrote to memory of 2068	2532	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	35
PID 2532 wrote to memory of 2068	2532	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	35
PID 2532 wrote to memory of 2068	2532	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	35
PID 2068 wrote to memory of 960	2068	csrsll.exe	36
PID 2068 wrote to memory of 960	2068	csrsll.exe	36
PID 2068 wrote to memory of 960	2068	csrsll.exe	36
PID 2068 wrote to memory of 960	2068	csrsll.exe	36
PID 2068 wrote to memory of 960	2068	csrsll.exe	36
PID 2068 wrote to memory of 960	2068	csrsll.exe	36
PID 2068 wrote to memory of 960	2068	csrsll.exe	36
PID 2068 wrote to memory of 960	2068	csrsll.exe	36
PID 2068 wrote to memory of 896	2068	csrsll.exe	37
PID 2068 wrote to memory of 896	2068	csrsll.exe	37
PID 2068 wrote to memory of 896	2068	csrsll.exe	37
PID 2068 wrote to memory of 896	2068	csrsll.exe	37
PID 2068 wrote to memory of 896	2068	csrsll.exe	37
PID 2068 wrote to memory of 896	2068	csrsll.exe	37
PID 2068 wrote to memory of 896	2068	csrsll.exe	37
PID 2068 wrote to memory of 896	2068	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe
"C:\Users\Admin\AppData\Local\Temp\d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.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\d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe
  "C:\Users\Admin\AppData\Local\Temp\d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2532
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\BXWAN.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1064
  - - 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:1672
- - 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:2068
  - - 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:960
  - - 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:896

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\BXWAN.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
300KB

MD5
da9acdf3aff6fab63de3f7093db0be2e

SHA1
d469b9031cfe2e11f4b9d518fd228fa58d138872

SHA256
73fb684d60d36a8fcc2d8c06bd636fabcb5a9bb540076544dd0312f95f1abfe6

SHA512
e4c75809b47dddff4c5b472a1c6f1f4b9be4d8b5657b1575a598b64411da541b28417fbe198de55e25dcc579149be98656b7139eecf6ca2851833c6fabc8bd72

Download Submit
memory/896-254-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/896-242-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/960-251-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/960-236-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2068-171-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2068-159-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2068-149-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

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

Filesize
8KB

Download
memory/2328-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2328-85-0x00000000003D0000-0x00000000003D2000-memory.dmp

Filesize
8KB

Download
memory/2328-90-0x00000000003E0000-0x00000000003E2000-memory.dmp

Filesize
8KB

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

Filesize
4KB

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

Filesize
4KB

Download
memory/2328-82-0x00000000003C0000-0x00000000003C2000-memory.dmp

Filesize
8KB

Download
memory/2328-15-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2328-27-0x0000000000300000-0x0000000000301000-memory.dmp

Filesize
4KB

Download
memory/2328-39-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/2328-59-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/2328-69-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2328-77-0x00000000003A0000-0x00000000003A2000-memory.dmp

Filesize
8KB

Download
memory/2532-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2532-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2532-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2532-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2532-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2532-245-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2532-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2532-235-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2532-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2532-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads