modiloader | 54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b

Analysis

max time kernel
149s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-01-2025 00:41

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General

Target

54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe
Size

300KB
MD5

6f073d14508aa79d76397cffce235651
SHA1

233420074164775690b3193a3684a890c3ededf9
SHA256

54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b
SHA512

d50a90ca45573953c295e94d609b76e1b1ef3c824c858348e1e9bf2519666f40489921f7e0b518afb40e937aae37fe9e564fbf3c3580147394338732eede8cbb
SSDEEP

3072:Ue2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38Gs:UsxD5cwohO+O1sVG0/pZ6iPC8q

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/2564-252-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1720	csrsll.exe
1540	csrsll.exe
2564	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2716	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe
2716	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe
2716	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe
2716	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe
2716	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.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-1-5-21-3063565911-2056067323-3330884624-1000\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 2380 set thread context of 2716	2380	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	30
PID 1720 set thread context of 1540	1720	csrsll.exe	35
PID 1720 set thread context of 2564	1720	csrsll.exe	36

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2716-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2716-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2716-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2716-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2716-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2716-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2564-242-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2716-240-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2716-250-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1540-251-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2564-252-0x0000000000400000-0x0000000000414000-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	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2380	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe
2716	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe
1720	csrsll.exe
1540	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2716	2380	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	30
PID 2380 wrote to memory of 2716	2380	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	30
PID 2380 wrote to memory of 2716	2380	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	30
PID 2380 wrote to memory of 2716	2380	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	30
PID 2380 wrote to memory of 2716	2380	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	30
PID 2380 wrote to memory of 2716	2380	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	30
PID 2380 wrote to memory of 2716	2380	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	30
PID 2380 wrote to memory of 2716	2380	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	30
PID 2716 wrote to memory of 1860	2716	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	31
PID 2716 wrote to memory of 1860	2716	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	31
PID 2716 wrote to memory of 1860	2716	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	31
PID 2716 wrote to memory of 1860	2716	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	31
PID 1860 wrote to memory of 280	1860	cmd.exe	33
PID 1860 wrote to memory of 280	1860	cmd.exe	33
PID 1860 wrote to memory of 280	1860	cmd.exe	33
PID 1860 wrote to memory of 280	1860	cmd.exe	33
PID 2716 wrote to memory of 1720	2716	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	34
PID 2716 wrote to memory of 1720	2716	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	34
PID 2716 wrote to memory of 1720	2716	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	34
PID 2716 wrote to memory of 1720	2716	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	34
PID 1720 wrote to memory of 1540	1720	csrsll.exe	35
PID 1720 wrote to memory of 1540	1720	csrsll.exe	35
PID 1720 wrote to memory of 1540	1720	csrsll.exe	35
PID 1720 wrote to memory of 1540	1720	csrsll.exe	35
PID 1720 wrote to memory of 1540	1720	csrsll.exe	35
PID 1720 wrote to memory of 1540	1720	csrsll.exe	35
PID 1720 wrote to memory of 1540	1720	csrsll.exe	35
PID 1720 wrote to memory of 1540	1720	csrsll.exe	35
PID 1720 wrote to memory of 2564	1720	csrsll.exe	36
PID 1720 wrote to memory of 2564	1720	csrsll.exe	36
PID 1720 wrote to memory of 2564	1720	csrsll.exe	36
PID 1720 wrote to memory of 2564	1720	csrsll.exe	36
PID 1720 wrote to memory of 2564	1720	csrsll.exe	36
PID 1720 wrote to memory of 2564	1720	csrsll.exe	36
PID 1720 wrote to memory of 2564	1720	csrsll.exe	36
PID 1720 wrote to memory of 2564	1720	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe
"C:\Users\Admin\AppData\Local\Temp\54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Users\Admin\AppData\Local\Temp\54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe
  "C:\Users\Admin\AppData\Local\Temp\54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2716
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\AMSXI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1860
  - - 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:280
- - 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:1720
  - - 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:1540
  - - 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:2564

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\AMSXI.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
300KB

MD5
a596b69f413dba4696a9a2c7726df177

SHA1
9e0a7b3c994bc4f64229da880e870cbe65d03596

SHA256
dceb077df3fcd3a96d141b4ee037bc3bda2c1ec12e48167aac272f1075bd13f2

SHA512
2f05344dd7307c076b8dadc1e8dd35a28316f561ba838d5e81dd7ae4c6aafa874b83dbf3540c6140b375f002c44c0dd4d2e4afa04d6947bd47f95b63051a49ea

Download Submit
memory/1540-251-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1720-172-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/1720-160-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/1720-150-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2380-69-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/2380-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2380-77-0x0000000000470000-0x0000000000472000-memory.dmp

Filesize
8KB

Download
memory/2380-79-0x0000000000470000-0x0000000000472000-memory.dmp

Filesize
8KB

Download
memory/2380-82-0x0000000000480000-0x0000000000482000-memory.dmp

Filesize
8KB

Download
memory/2380-85-0x0000000000490000-0x0000000000492000-memory.dmp

Filesize
8KB

Download
memory/2380-90-0x00000000004A0000-0x00000000004A2000-memory.dmp

Filesize
8KB

Download
memory/2380-59-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2380-39-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/2380-5-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2380-27-0x0000000000300000-0x0000000000301000-memory.dmp

Filesize
4KB

Download
memory/2380-3-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2380-15-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2564-242-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2564-252-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2716-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2716-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2716-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2716-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2716-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2716-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2716-240-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2716-250-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2716-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2716-91-0x0000000000400000-0x000000000040B000-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