modiloader | 6870cfa6a3c32fa43c31d2d28a2f1014ad5167a87f2cd765c3b716324c1b4ad7

Analysis

max time kernel
119s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20240910-en
resource tags

arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-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 4 IoCs

resource	yara_rule
behavioral2/memory/3876-49-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3876-48-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3876-50-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3876-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	6b3ea88bdfca875c4ff9845a231822b0N.exe

Executes dropped EXE 3 IoCs

pid	Process
3428	csrsll.exe
392	csrsll.exe
3876	csrsll.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4924-5-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4924-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4924-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4924-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4924-46-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3876-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3876-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3876-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4924-56-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3876-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3876-41-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/392-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3876-58-0x0000000000400000-0x0000000000414000-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-1-5-21-2629364133-3182087385-364449604-1000\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 2804 set thread context of 4924	2804	6b3ea88bdfca875c4ff9845a231822b0N.exe	86
PID 3428 set thread context of 392	3428	csrsll.exe	92
PID 3428 set thread context of 3876	3428	csrsll.exe	93

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	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
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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe
Token: SeDebugPrivilege	392	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2804	6b3ea88bdfca875c4ff9845a231822b0N.exe
4924	6b3ea88bdfca875c4ff9845a231822b0N.exe
3428	csrsll.exe
392	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2804 wrote to memory of 4924	2804	6b3ea88bdfca875c4ff9845a231822b0N.exe	86
PID 2804 wrote to memory of 4924	2804	6b3ea88bdfca875c4ff9845a231822b0N.exe	86
PID 2804 wrote to memory of 4924	2804	6b3ea88bdfca875c4ff9845a231822b0N.exe	86
PID 2804 wrote to memory of 4924	2804	6b3ea88bdfca875c4ff9845a231822b0N.exe	86
PID 2804 wrote to memory of 4924	2804	6b3ea88bdfca875c4ff9845a231822b0N.exe	86
PID 2804 wrote to memory of 4924	2804	6b3ea88bdfca875c4ff9845a231822b0N.exe	86
PID 2804 wrote to memory of 4924	2804	6b3ea88bdfca875c4ff9845a231822b0N.exe	86
PID 2804 wrote to memory of 4924	2804	6b3ea88bdfca875c4ff9845a231822b0N.exe	86
PID 4924 wrote to memory of 224	4924	6b3ea88bdfca875c4ff9845a231822b0N.exe	87
PID 4924 wrote to memory of 224	4924	6b3ea88bdfca875c4ff9845a231822b0N.exe	87
PID 4924 wrote to memory of 224	4924	6b3ea88bdfca875c4ff9845a231822b0N.exe	87
PID 224 wrote to memory of 1804	224	cmd.exe	90
PID 224 wrote to memory of 1804	224	cmd.exe	90
PID 224 wrote to memory of 1804	224	cmd.exe	90
PID 4924 wrote to memory of 3428	4924	6b3ea88bdfca875c4ff9845a231822b0N.exe	91
PID 4924 wrote to memory of 3428	4924	6b3ea88bdfca875c4ff9845a231822b0N.exe	91
PID 4924 wrote to memory of 3428	4924	6b3ea88bdfca875c4ff9845a231822b0N.exe	91
PID 3428 wrote to memory of 392	3428	csrsll.exe	92
PID 3428 wrote to memory of 392	3428	csrsll.exe	92
PID 3428 wrote to memory of 392	3428	csrsll.exe	92
PID 3428 wrote to memory of 392	3428	csrsll.exe	92
PID 3428 wrote to memory of 392	3428	csrsll.exe	92
PID 3428 wrote to memory of 392	3428	csrsll.exe	92
PID 3428 wrote to memory of 392	3428	csrsll.exe	92
PID 3428 wrote to memory of 392	3428	csrsll.exe	92
PID 3428 wrote to memory of 3876	3428	csrsll.exe	93
PID 3428 wrote to memory of 3876	3428	csrsll.exe	93
PID 3428 wrote to memory of 3876	3428	csrsll.exe	93
PID 3428 wrote to memory of 3876	3428	csrsll.exe	93
PID 3428 wrote to memory of 3876	3428	csrsll.exe	93
PID 3428 wrote to memory of 3876	3428	csrsll.exe	93
PID 3428 wrote to memory of 3876	3428	csrsll.exe	93
PID 3428 wrote to memory of 3876	3428	csrsll.exe	93

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:2804
- C:\Users\Admin\AppData\Local\Temp\6b3ea88bdfca875c4ff9845a231822b0N.exe
  "C:\Users\Admin\AppData\Local\Temp\6b3ea88bdfca875c4ff9845a231822b0N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4924
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\SWTHT.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:224
  - - 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:1804
- - 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:3428
  - - 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:392
  - - 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:3876

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

Query Registry

T1012

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\SWTHT.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
308KB

MD5
7fd6d67590bc2783dc1ce0e5f0527c4c

SHA1
5545919c1014a64c6830e2dfe7fc5846c9bda35e

SHA256
18d3bd65a02a89b3e5953ea47338d1af8762acbf578f29b1af48dbf38f64fdd8

SHA512
a3a2eb79ca203d3a038d3364ccb1f0cd02426a371426d582d2c88f4bc6439f4736c17b32f9ba90a60cc02aa902af1eb19b4fc0d818d1a6096ce7c901345ff098

Download Submit
memory/392-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2804-3-0x0000000002310000-0x0000000002311000-memory.dmp

Filesize
4KB

Download
memory/2804-4-0x0000000002330000-0x0000000002331000-memory.dmp

Filesize
4KB

Download
memory/2804-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3428-52-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3428-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3428-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3428-33-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3876-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3876-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3876-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3876-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3876-41-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3876-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4924-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4924-46-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4924-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4924-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4924-56-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4924-5-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads