modiloader | 6870cfa6a3c32fa43c31d2d28a2f1014ad5167a87f2cd765c3b716324c1b4ad7

Analysis

max time kernel
120s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15/09/2024, 05:28

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General

Target

6b3ea88bdfca875c4ff9845a231822b0N.exe
Size

308KB
MD5

6b3ea88bdfca875c4ff9845a231822b0
SHA1

cbab7c6b310c07a6a7555e121e0c15b424c563c0
SHA256

6870cfa6a3c32fa43c31d2d28a2f1014ad5167a87f2cd765c3b716324c1b4ad7
SHA512

52a87859941f5d28032195d8d460c8cc04b898fb27172eca7c3c3df2bb6bd42ca3100ba31f8a55b27fb87345339d3d652a1472e5a2b7accba0f9f27294ac2998
SSDEEP

3072:/c3sBG7mXh7m/zZM3jAbNOM6CNtDCZFL:E3sBz0Z4Mj72F

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 Second Stage 1 IoCs

resource	yara_rule
behavioral1/memory/64424-147844-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
133944	csrsll.exe
64424	csrsll.exe
64348	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
133640	6b3ea88bdfca875c4ff9845a231822b0N.exe
133640	6b3ea88bdfca875c4ff9845a231822b0N.exe
133640	6b3ea88bdfca875c4ff9845a231822b0N.exe
133640	6b3ea88bdfca875c4ff9845a231822b0N.exe
133640	6b3ea88bdfca875c4ff9845a231822b0N.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/133640-73918-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/133640-73920-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/133640-73923-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/133640-73924-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/133640-73925-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/133640-107329-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/64424-147834-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/133640-147842-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/64424-147844-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/64348-147845-0x0000000000400000-0x000000000040B000-memory.dmp	upx

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 2376 set thread context of 133640	2376	6b3ea88bdfca875c4ff9845a231822b0N.exe	31
PID 133944 set thread context of 64348	133944	csrsll.exe	36
PID 133944 set thread context of 64424	133944	csrsll.exe	37

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	6b3ea88bdfca875c4ff9845a231822b0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6b3ea88bdfca875c4ff9845a231822b0N.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 56 IoCs

description	pid	Process
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe
Token: SeDebugPrivilege	64348	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2376	6b3ea88bdfca875c4ff9845a231822b0N.exe
133640	6b3ea88bdfca875c4ff9845a231822b0N.exe
133944	csrsll.exe
64348	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 133640	2376	6b3ea88bdfca875c4ff9845a231822b0N.exe	31
PID 2376 wrote to memory of 133640	2376	6b3ea88bdfca875c4ff9845a231822b0N.exe	31
PID 2376 wrote to memory of 133640	2376	6b3ea88bdfca875c4ff9845a231822b0N.exe	31
PID 2376 wrote to memory of 133640	2376	6b3ea88bdfca875c4ff9845a231822b0N.exe	31
PID 2376 wrote to memory of 133640	2376	6b3ea88bdfca875c4ff9845a231822b0N.exe	31
PID 2376 wrote to memory of 133640	2376	6b3ea88bdfca875c4ff9845a231822b0N.exe	31
PID 2376 wrote to memory of 133640	2376	6b3ea88bdfca875c4ff9845a231822b0N.exe	31
PID 2376 wrote to memory of 133640	2376	6b3ea88bdfca875c4ff9845a231822b0N.exe	31
PID 133640 wrote to memory of 133836	133640	6b3ea88bdfca875c4ff9845a231822b0N.exe	32
PID 133640 wrote to memory of 133836	133640	6b3ea88bdfca875c4ff9845a231822b0N.exe	32
PID 133640 wrote to memory of 133836	133640	6b3ea88bdfca875c4ff9845a231822b0N.exe	32
PID 133640 wrote to memory of 133836	133640	6b3ea88bdfca875c4ff9845a231822b0N.exe	32
PID 133836 wrote to memory of 133908	133836	cmd.exe	34
PID 133836 wrote to memory of 133908	133836	cmd.exe	34
PID 133836 wrote to memory of 133908	133836	cmd.exe	34
PID 133836 wrote to memory of 133908	133836	cmd.exe	34
PID 133640 wrote to memory of 133944	133640	6b3ea88bdfca875c4ff9845a231822b0N.exe	35
PID 133640 wrote to memory of 133944	133640	6b3ea88bdfca875c4ff9845a231822b0N.exe	35
PID 133640 wrote to memory of 133944	133640	6b3ea88bdfca875c4ff9845a231822b0N.exe	35
PID 133640 wrote to memory of 133944	133640	6b3ea88bdfca875c4ff9845a231822b0N.exe	35
PID 133944 wrote to memory of 64348	133944	csrsll.exe	36
PID 133944 wrote to memory of 64348	133944	csrsll.exe	36
PID 133944 wrote to memory of 64348	133944	csrsll.exe	36
PID 133944 wrote to memory of 64348	133944	csrsll.exe	36
PID 133944 wrote to memory of 64348	133944	csrsll.exe	36
PID 133944 wrote to memory of 64348	133944	csrsll.exe	36
PID 133944 wrote to memory of 64348	133944	csrsll.exe	36
PID 133944 wrote to memory of 64348	133944	csrsll.exe	36
PID 133944 wrote to memory of 64424	133944	csrsll.exe	37
PID 133944 wrote to memory of 64424	133944	csrsll.exe	37
PID 133944 wrote to memory of 64424	133944	csrsll.exe	37
PID 133944 wrote to memory of 64424	133944	csrsll.exe	37
PID 133944 wrote to memory of 64424	133944	csrsll.exe	37
PID 133944 wrote to memory of 64424	133944	csrsll.exe	37
PID 133944 wrote to memory of 64424	133944	csrsll.exe	37
PID 133944 wrote to memory of 64424	133944	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\6b3ea88bdfca875c4ff9845a231822b0N.exe
"C:\Users\Admin\AppData\Local\Temp\6b3ea88bdfca875c4ff9845a231822b0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2376
- C:\Users\Admin\AppData\Local\Temp\6b3ea88bdfca875c4ff9845a231822b0N.exe
  "C:\Users\Admin\AppData\Local\Temp\6b3ea88bdfca875c4ff9845a231822b0N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:133640
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\AFVWT.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:133836
  - - 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:133908
- - 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:133944
  - - 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:64348
  - - 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:64424

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\AFVWT.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
308KB

MD5
ef6ebf988fe4cb120a5d94127c28e16b

SHA1
2ca686322857dece8a6d333c2c822ab9a72eecf8

SHA256
a756ed3f599ce7fa217bf093d04037be50c617915804e841e8d2db6feb580a2f

SHA512
568bfc5d291686313e40d9f4b6b553cee2e0caa8ec427377465243c0e5546f65a090d6646618f1a47f7b4b45c9d45043a1c45ebdec92cad371fe61fea9f5dc78

Download Submit
memory/2376-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2376-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/64348-147845-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/64424-147844-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/64424-147834-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/133640-73925-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/133640-73924-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/133640-73923-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/133640-73922-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/133640-107329-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/133640-73920-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/133640-147842-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/133640-73918-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/133640-73916-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/133944-73965-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads