modiloader | 65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2024 12:09

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General

Target

65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe
Size

90KB
MD5

0e3372e4f17003e054054d6e7d120259
SHA1

81d7f0beffd488a4cad34ef75ac62f916d0bdeeb
SHA256

65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa
SHA512

28795e0ed326e05768ea362ffd316a847d53a5523337074b4c8c9c5f3de9e3f44ebb40fbc72e5f53c226e0e280b4b868b9cb6fe3041d2b21eeb5941045cb9036
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD0:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3i

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/4296-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4296-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4296-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4296-61-0x0000000000400000-0x0000000000414000-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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe

Executes dropped EXE 3 IoCs

pid	Process
812	csrsll.exe
2624	csrsll.exe
4296	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 3948 set thread context of 2224	3948	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	82
PID 812 set thread context of 2624	812	csrsll.exe	93
PID 812 set thread context of 4296	812	csrsll.exe	94

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3948-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3948-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2224-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2224-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2224-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3948-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b5f-29.dat	upx
behavioral2/memory/2224-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/812-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/812-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4296-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4296-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4296-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4296-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4296-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/812-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2224-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2624-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4296-61-0x0000000000400000-0x0000000000414000-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	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.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	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe
Token: SeDebugPrivilege	2624	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3948	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe
2224	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe
812	csrsll.exe
2624	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3948 wrote to memory of 2224	3948	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	82
PID 3948 wrote to memory of 2224	3948	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	82
PID 3948 wrote to memory of 2224	3948	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	82
PID 3948 wrote to memory of 2224	3948	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	82
PID 3948 wrote to memory of 2224	3948	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	82
PID 3948 wrote to memory of 2224	3948	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	82
PID 3948 wrote to memory of 2224	3948	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	82
PID 3948 wrote to memory of 2224	3948	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	82
PID 2224 wrote to memory of 3260	2224	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	83
PID 2224 wrote to memory of 3260	2224	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	83
PID 2224 wrote to memory of 3260	2224	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	83
PID 3260 wrote to memory of 3020	3260	cmd.exe	86
PID 3260 wrote to memory of 3020	3260	cmd.exe	86
PID 3260 wrote to memory of 3020	3260	cmd.exe	86
PID 2224 wrote to memory of 812	2224	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	87
PID 2224 wrote to memory of 812	2224	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	87
PID 2224 wrote to memory of 812	2224	65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe	87
PID 812 wrote to memory of 2624	812	csrsll.exe	93
PID 812 wrote to memory of 2624	812	csrsll.exe	93
PID 812 wrote to memory of 2624	812	csrsll.exe	93
PID 812 wrote to memory of 2624	812	csrsll.exe	93
PID 812 wrote to memory of 2624	812	csrsll.exe	93
PID 812 wrote to memory of 2624	812	csrsll.exe	93
PID 812 wrote to memory of 2624	812	csrsll.exe	93
PID 812 wrote to memory of 2624	812	csrsll.exe	93
PID 812 wrote to memory of 4296	812	csrsll.exe	94
PID 812 wrote to memory of 4296	812	csrsll.exe	94
PID 812 wrote to memory of 4296	812	csrsll.exe	94
PID 812 wrote to memory of 4296	812	csrsll.exe	94
PID 812 wrote to memory of 4296	812	csrsll.exe	94
PID 812 wrote to memory of 4296	812	csrsll.exe	94
PID 812 wrote to memory of 4296	812	csrsll.exe	94
PID 812 wrote to memory of 4296	812	csrsll.exe	94

C:\Users\Admin\AppData\Local\Temp\65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe
"C:\Users\Admin\AppData\Local\Temp\65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3948
- C:\Users\Admin\AppData\Local\Temp\65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe
  "C:\Users\Admin\AppData\Local\Temp\65b867378efdacc459a73133e61b87e4284293f9e2167d62fb4966f2249d03aa.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2224
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JRGQG.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3260
  - - 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:3020
- - 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:812
  - - 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:2624
  - - 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:4296

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\JRGQG.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
0104bb997d2131474d28e306e2ccdb80

SHA1
912938ba284b13dcc1d5a8c3482b5caf0fe15710

SHA256
51717d6eeaa1ed1b1c73f5066e848ab1a5364fe050d4bebeeef2297dfd29dfd2

SHA512
1aab16ec61dfe0464578b1614d064f1ba939904488aa2ec7b428f0ef849ff8160cba27f078ae4426e8abe9c6b38affea44026a09ff95909a4e1b6c75181a9ade

Download Submit
memory/812-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/812-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/812-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2224-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2224-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2224-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2224-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2224-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2624-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3948-3-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/3948-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3948-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3948-6-0x0000000002C90000-0x0000000002C92000-memory.dmp

Filesize
8KB

Download
memory/3948-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3948-4-0x0000000002C60000-0x0000000002C62000-memory.dmp

Filesize
8KB

Download
memory/4296-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4296-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4296-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4296-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4296-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4296-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads