modiloader | f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28-12-2024 04:29

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe
Size

90KB
MD5

cf06b01884cc385a5052575d07145816
SHA1

52af8d0bfa381dffedc4bfd9c2755ba9bb12f19c
SHA256

f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264
SHA512

48a600a2c16a5ba4d3e01d5f44758db8e6b0d1393eae2360f5a2a5eb042e1ad0c60539639f7a2bb64f87157894cb91f8e3c605a1bc6030cdbb28e3a8dc2c030a
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDu:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3o

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 4 IoCs

resource	yara_rule
behavioral2/memory/4024-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4024-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4024-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4024-63-0x0000000000400000-0x0000000000414000-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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe

Executes dropped EXE 3 IoCs

pid	Process
2100	csrsll.exe
2124	csrsll.exe
4024	csrsll.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-1-5-21-4089630652-1596403869-279772308-1000\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 3852 set thread context of 1272	3852	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	82
PID 2100 set thread context of 2124	2100	csrsll.exe	93
PID 2100 set thread context of 4024	2100	csrsll.exe	94

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3852-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3852-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1272-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1272-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1272-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3852-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000c000000023b5c-30.dat	upx
behavioral2/memory/1272-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2100-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2100-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4024-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4024-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4024-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4024-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1272-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2100-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4024-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2124-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4024-63-0x0000000000400000-0x0000000000414000-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	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.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	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe
Token: SeDebugPrivilege	2124	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3852	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe
1272	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe
2100	csrsll.exe
2124	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3852 wrote to memory of 1272	3852	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	82
PID 3852 wrote to memory of 1272	3852	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	82
PID 3852 wrote to memory of 1272	3852	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	82
PID 3852 wrote to memory of 1272	3852	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	82
PID 3852 wrote to memory of 1272	3852	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	82
PID 3852 wrote to memory of 1272	3852	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	82
PID 3852 wrote to memory of 1272	3852	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	82
PID 3852 wrote to memory of 1272	3852	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	82
PID 1272 wrote to memory of 1228	1272	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	83
PID 1272 wrote to memory of 1228	1272	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	83
PID 1272 wrote to memory of 1228	1272	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	83
PID 1228 wrote to memory of 1600	1228	cmd.exe	86
PID 1228 wrote to memory of 1600	1228	cmd.exe	86
PID 1228 wrote to memory of 1600	1228	cmd.exe	86
PID 1272 wrote to memory of 2100	1272	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	87
PID 1272 wrote to memory of 2100	1272	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	87
PID 1272 wrote to memory of 2100	1272	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	87
PID 2100 wrote to memory of 2124	2100	csrsll.exe	93
PID 2100 wrote to memory of 2124	2100	csrsll.exe	93
PID 2100 wrote to memory of 2124	2100	csrsll.exe	93
PID 2100 wrote to memory of 2124	2100	csrsll.exe	93
PID 2100 wrote to memory of 2124	2100	csrsll.exe	93
PID 2100 wrote to memory of 2124	2100	csrsll.exe	93
PID 2100 wrote to memory of 2124	2100	csrsll.exe	93
PID 2100 wrote to memory of 2124	2100	csrsll.exe	93
PID 2100 wrote to memory of 4024	2100	csrsll.exe	94
PID 2100 wrote to memory of 4024	2100	csrsll.exe	94
PID 2100 wrote to memory of 4024	2100	csrsll.exe	94
PID 2100 wrote to memory of 4024	2100	csrsll.exe	94
PID 2100 wrote to memory of 4024	2100	csrsll.exe	94
PID 2100 wrote to memory of 4024	2100	csrsll.exe	94
PID 2100 wrote to memory of 4024	2100	csrsll.exe	94
PID 2100 wrote to memory of 4024	2100	csrsll.exe	94

C:\Users\Admin\AppData\Local\Temp\f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe
"C:\Users\Admin\AppData\Local\Temp\f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3852
- C:\Users\Admin\AppData\Local\Temp\f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe
  "C:\Users\Admin\AppData\Local\Temp\f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1272
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DIWWK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1228
  - - 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:1600
- - 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:2100
  - - 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:2124
  - - 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:4024

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\DIWWK.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
eda5b66056b89381574fdb7b6aee4af4

SHA1
28be43a64ecbf0041da39339fdf9d49533aeed34

SHA256
2292cbe54cefc32c464a2fa265f65b11f9069c421ba4df1896d2cca8b15869c5

SHA512
ecaa7868a133346fd239b955cd0a0014d11a9c2980f42a3329b6b89d373d57b0d67bfac7bc084289375b67bc5300b4fc49ddf012af9a6b678848a32b92a689f4

Download Submit
memory/1272-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1272-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1272-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1272-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1272-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2100-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2100-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2100-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2124-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3852-6-0x0000000002930000-0x0000000002932000-memory.dmp

Filesize
8KB

Download
memory/3852-4-0x0000000002910000-0x0000000002912000-memory.dmp

Filesize
8KB

Download
memory/3852-3-0x0000000002900000-0x0000000002902000-memory.dmp

Filesize
8KB

Download
memory/3852-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3852-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3852-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4024-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4024-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4024-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4024-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4024-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4024-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads