modiloader | b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3

Analysis

max time kernel
58s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-01-2025 20:11

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General

Target

b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe
Size

90KB
MD5

eaba53ee5023974b7880431769aa69d4
SHA1

43c2419e72cd9e20d02b374e74bd0da2ba40a7dc
SHA256

b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3
SHA512

19ad1193628d32af2d3e4099d91f213d461f769e2a2f3c14ebb8d1d2a3bf86b71ab8fdbce267be3791a5c0805c2bcf71df28a2ac9e26d99f85c8f058013d5e9a
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDu:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3w

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/2504-264-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2908	csrsll.exe
2416	csrsll.exe
2504	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
1820	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe
1820	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe
1820	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe
1820	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe
1820	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.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-1-5-21-3290804112-2823094203-3137964600-1000\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 2196 set thread context of 1820	2196	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe	30
PID 2908 set thread context of 2416	2908	csrsll.exe	35
PID 2908 set thread context of 2504	2908	csrsll.exe	36

UPX packed file 22 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2196-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2196-91-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2196-82-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2196-81-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2196-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1820-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1820-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1820-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2196-103-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1820-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1820-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1820-108-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1820-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0008000000012117-137.dat	upx
behavioral1/memory/1820-135-0x00000000025C0000-0x0000000002613000-memory.dmp	upx
behavioral1/memory/1820-154-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2908-225-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2504-252-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2908-254-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1820-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2416-261-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2504-264-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.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

Suspicious use of AdjustPrivilegeToken 28 IoCs

description	pid	Process
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe
Token: SeDebugPrivilege	2416	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2196	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe
1820	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe
2908	csrsll.exe
2416	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 1820	2196	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe	30
PID 2196 wrote to memory of 1820	2196	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe	30
PID 2196 wrote to memory of 1820	2196	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe	30
PID 2196 wrote to memory of 1820	2196	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe	30
PID 2196 wrote to memory of 1820	2196	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe	30
PID 2196 wrote to memory of 1820	2196	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe	30
PID 2196 wrote to memory of 1820	2196	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe	30
PID 2196 wrote to memory of 1820	2196	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe	30
PID 1820 wrote to memory of 2180	1820	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe	31
PID 1820 wrote to memory of 2180	1820	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe	31
PID 1820 wrote to memory of 2180	1820	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe	31
PID 1820 wrote to memory of 2180	1820	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe	31
PID 2180 wrote to memory of 2772	2180	cmd.exe	33
PID 2180 wrote to memory of 2772	2180	cmd.exe	33
PID 2180 wrote to memory of 2772	2180	cmd.exe	33
PID 2180 wrote to memory of 2772	2180	cmd.exe	33
PID 1820 wrote to memory of 2908	1820	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe	34
PID 1820 wrote to memory of 2908	1820	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe	34
PID 1820 wrote to memory of 2908	1820	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe	34
PID 1820 wrote to memory of 2908	1820	b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe	34
PID 2908 wrote to memory of 2416	2908	csrsll.exe	35
PID 2908 wrote to memory of 2416	2908	csrsll.exe	35
PID 2908 wrote to memory of 2416	2908	csrsll.exe	35
PID 2908 wrote to memory of 2416	2908	csrsll.exe	35
PID 2908 wrote to memory of 2416	2908	csrsll.exe	35
PID 2908 wrote to memory of 2416	2908	csrsll.exe	35
PID 2908 wrote to memory of 2416	2908	csrsll.exe	35
PID 2908 wrote to memory of 2416	2908	csrsll.exe	35
PID 2908 wrote to memory of 2504	2908	csrsll.exe	36
PID 2908 wrote to memory of 2504	2908	csrsll.exe	36
PID 2908 wrote to memory of 2504	2908	csrsll.exe	36
PID 2908 wrote to memory of 2504	2908	csrsll.exe	36
PID 2908 wrote to memory of 2504	2908	csrsll.exe	36
PID 2908 wrote to memory of 2504	2908	csrsll.exe	36
PID 2908 wrote to memory of 2504	2908	csrsll.exe	36
PID 2908 wrote to memory of 2504	2908	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe
"C:\Users\Admin\AppData\Local\Temp\b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Users\Admin\AppData\Local\Temp\b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe
  "C:\Users\Admin\AppData\Local\Temp\b75be305eaf7d4864c316b162114299c33f81d60dbd2003864375d6dba3015a3.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1820
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\GHENF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2180
  - - 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:2772
- - 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:2908
  - - 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:2416
  - - 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:2504

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\GHENF.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
a79670bfad9db714e9ff677c394caa6e

SHA1
d476f18dc74721e92bc64f005bc898d9112bfe1e

SHA256
43ef37dc625f0b3881df41956530f3512fa9966caaf111edc3278e0f5d91b229

SHA512
40256b6778da69f7dca87b98571a3fb24ab2cac5da31daa35fca1c84ea47167744cfdc67ccbeac7ff45c0d7f69c24a49a88ef281382f67b57656905e8c656a6d

Download Submit
memory/1820-150-0x00000000025C0000-0x0000000002613000-memory.dmp

Filesize
332KB

Download
memory/1820-224-0x00000000025C0000-0x0000000002613000-memory.dmp

Filesize
332KB

Download
memory/1820-215-0x00000000025C0000-0x0000000002613000-memory.dmp

Filesize
332KB

Download
memory/1820-221-0x00000000025C0000-0x0000000002613000-memory.dmp

Filesize
332KB

Download
memory/1820-154-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1820-135-0x00000000025C0000-0x0000000002613000-memory.dmp

Filesize
332KB

Download
memory/1820-148-0x00000000025C0000-0x0000000002613000-memory.dmp

Filesize
332KB

Download
memory/1820-149-0x00000000025C0000-0x0000000002613000-memory.dmp

Filesize
332KB

Download
memory/1820-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1820-214-0x00000000025C0000-0x0000000002613000-memory.dmp

Filesize
332KB

Download
memory/1820-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1820-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1820-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1820-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1820-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1820-108-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1820-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1820-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1820-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2196-92-0x0000000002600000-0x0000000002653000-memory.dmp

Filesize
332KB

Download
memory/2196-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2196-103-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2196-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2196-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2196-29-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2196-41-0x0000000001C80000-0x0000000001C81000-memory.dmp

Filesize
4KB

Download
memory/2196-61-0x0000000001CC0000-0x0000000001CC1000-memory.dmp

Filesize
4KB

Download
memory/2196-71-0x0000000001CE0000-0x0000000001CE1000-memory.dmp

Filesize
4KB

Download
memory/2196-79-0x0000000001D00000-0x0000000001D02000-memory.dmp

Filesize
8KB

Download
memory/2196-81-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2196-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2196-15-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/2196-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2196-82-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2196-91-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2416-261-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2504-252-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2504-264-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2908-178-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/2908-167-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2908-225-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2908-254-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2908-157-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads