modiloader | 20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15-12-2024 21:45

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General

Target

20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe
Size

90KB
MD5

3ebb637d29d93e37ab20ea79ca85b4b0
SHA1

b7f1b17c10fb8f5ee56341b4677decc9f0d314bd
SHA256

20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84
SHA512

6c6a610d6ddd67a67461bd5d84a3611a153142a67bc857c7a093769f781d43a9582dd442091839641551a8a396b877e20b731f19da5bdc5d5fda8ca713e79bd8
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDD:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE35

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/4104-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4104-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4104-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4104-61-0x0000000000400000-0x0000000000414000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe

Executes dropped EXE 3 IoCs

pid	Process
3368	csrsll.exe
2676	csrsll.exe
4104	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-1-5-21-3756129449-3121373848-4276368241-1000\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 2388 set thread context of 3604	2388	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	82
PID 3368 set thread context of 2676	3368	csrsll.exe	93
PID 3368 set thread context of 4104	3368	csrsll.exe	94

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2388-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2388-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3604-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3604-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3604-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2388-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023cb6-28.dat	upx
behavioral2/memory/3604-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3368-39-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3368-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4104-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4104-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4104-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3368-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4104-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4104-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3604-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2676-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4104-61-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe
Token: SeDebugPrivilege	2676	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2388	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe
3604	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe
3368	csrsll.exe
2676	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 3604	2388	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	82
PID 2388 wrote to memory of 3604	2388	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	82
PID 2388 wrote to memory of 3604	2388	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	82
PID 2388 wrote to memory of 3604	2388	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	82
PID 2388 wrote to memory of 3604	2388	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	82
PID 2388 wrote to memory of 3604	2388	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	82
PID 2388 wrote to memory of 3604	2388	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	82
PID 2388 wrote to memory of 3604	2388	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	82
PID 3604 wrote to memory of 924	3604	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	83
PID 3604 wrote to memory of 924	3604	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	83
PID 3604 wrote to memory of 924	3604	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	83
PID 924 wrote to memory of 1796	924	cmd.exe	86
PID 924 wrote to memory of 1796	924	cmd.exe	86
PID 924 wrote to memory of 1796	924	cmd.exe	86
PID 3604 wrote to memory of 3368	3604	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	87
PID 3604 wrote to memory of 3368	3604	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	87
PID 3604 wrote to memory of 3368	3604	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	87
PID 3368 wrote to memory of 2676	3368	csrsll.exe	93
PID 3368 wrote to memory of 2676	3368	csrsll.exe	93
PID 3368 wrote to memory of 2676	3368	csrsll.exe	93
PID 3368 wrote to memory of 2676	3368	csrsll.exe	93
PID 3368 wrote to memory of 2676	3368	csrsll.exe	93
PID 3368 wrote to memory of 2676	3368	csrsll.exe	93
PID 3368 wrote to memory of 2676	3368	csrsll.exe	93
PID 3368 wrote to memory of 2676	3368	csrsll.exe	93
PID 3368 wrote to memory of 4104	3368	csrsll.exe	94
PID 3368 wrote to memory of 4104	3368	csrsll.exe	94
PID 3368 wrote to memory of 4104	3368	csrsll.exe	94
PID 3368 wrote to memory of 4104	3368	csrsll.exe	94
PID 3368 wrote to memory of 4104	3368	csrsll.exe	94
PID 3368 wrote to memory of 4104	3368	csrsll.exe	94
PID 3368 wrote to memory of 4104	3368	csrsll.exe	94
PID 3368 wrote to memory of 4104	3368	csrsll.exe	94

C:\Users\Admin\AppData\Local\Temp\20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe
"C:\Users\Admin\AppData\Local\Temp\20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Users\Admin\AppData\Local\Temp\20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe
  "C:\Users\Admin\AppData\Local\Temp\20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3604
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\PWHDO.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:924
  - - 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:1796
- - 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:3368
  - - 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:2676
  - - 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:4104

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

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
da01e98eb7d5dfa1c656e0d0049d29b8

SHA1
9306b78cf3cfe58d8517b57362dae045f1cca3c6

SHA256
ea7c027b50055d4407685007f0da8ac60fc2dd0e4e43b695ad218bf4dcb84d63

SHA512
bd545c6fd46024ad514a2a5a74b6b94b83f406af23fc7bddf0528e03da43c869c89e60900fbbc79a9e08d4565bc0c28f5fff0dde60912fecc4ace7a753e05092

Download Submit
memory/2388-3-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/2388-4-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/2388-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2388-6-0x0000000002A70000-0x0000000002A72000-memory.dmp

Filesize
8KB

Download
memory/2388-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2388-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2676-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3368-39-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3368-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3368-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3604-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3604-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3604-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3604-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3604-57-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3604-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4104-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4104-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4104-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4104-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4104-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4104-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads