modiloader | d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776

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
23-12-2024 03:48

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General

Target

d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe
Size

90KB
MD5

de8e430b537229962e0791dd097a3fe3
SHA1

52e5023caa0763d1c4c51088cff5f8b936c9e89b
SHA256

d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776
SHA512

85ccb99de38cae591890e3a97f8dc26a906d93db2635fd086effcd717ddbc924c7995cc6d8dcf27d77ed3583bf5d93364de7932b021c675c1f4d523a20954aa7
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD4:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3S

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/2636-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2636-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2636-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2636-63-0x0000000000400000-0x0000000000414000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe

Executes dropped EXE 3 IoCs

pid	Process
3376	csrsll.exe
1040	csrsll.exe
2636	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-1-5-21-3227495264-2217614367-4027411560-1000\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 2404 set thread context of 3040	2404	d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe	82
PID 3376 set thread context of 1040	3376	csrsll.exe	95
PID 3376 set thread context of 2636	3376	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2404-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2404-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3040-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3040-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3040-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2404-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b8e-29.dat	upx
behavioral2/memory/3040-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3376-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3376-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2636-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2636-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2636-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2636-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3376-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2636-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3040-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1040-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2636-63-0x0000000000400000-0x0000000000414000-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	d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.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	d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe
Token: SeDebugPrivilege	1040	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2404	d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe
3040	d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe
3376	csrsll.exe
1040	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 3040	2404	d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe	82
PID 2404 wrote to memory of 3040	2404	d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe	82
PID 2404 wrote to memory of 3040	2404	d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe	82
PID 2404 wrote to memory of 3040	2404	d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe	82
PID 2404 wrote to memory of 3040	2404	d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe	82
PID 2404 wrote to memory of 3040	2404	d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe	82
PID 2404 wrote to memory of 3040	2404	d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe	82
PID 2404 wrote to memory of 3040	2404	d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe	82
PID 3040 wrote to memory of 1932	3040	d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe	83
PID 3040 wrote to memory of 1932	3040	d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe	83
PID 3040 wrote to memory of 1932	3040	d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe	83
PID 1932 wrote to memory of 2688	1932	cmd.exe	88
PID 1932 wrote to memory of 2688	1932	cmd.exe	88
PID 1932 wrote to memory of 2688	1932	cmd.exe	88
PID 3040 wrote to memory of 3376	3040	d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe	89
PID 3040 wrote to memory of 3376	3040	d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe	89
PID 3040 wrote to memory of 3376	3040	d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe	89
PID 3376 wrote to memory of 1040	3376	csrsll.exe	95
PID 3376 wrote to memory of 1040	3376	csrsll.exe	95
PID 3376 wrote to memory of 1040	3376	csrsll.exe	95
PID 3376 wrote to memory of 1040	3376	csrsll.exe	95
PID 3376 wrote to memory of 1040	3376	csrsll.exe	95
PID 3376 wrote to memory of 1040	3376	csrsll.exe	95
PID 3376 wrote to memory of 1040	3376	csrsll.exe	95
PID 3376 wrote to memory of 1040	3376	csrsll.exe	95
PID 3376 wrote to memory of 2636	3376	csrsll.exe	96
PID 3376 wrote to memory of 2636	3376	csrsll.exe	96
PID 3376 wrote to memory of 2636	3376	csrsll.exe	96
PID 3376 wrote to memory of 2636	3376	csrsll.exe	96
PID 3376 wrote to memory of 2636	3376	csrsll.exe	96
PID 3376 wrote to memory of 2636	3376	csrsll.exe	96
PID 3376 wrote to memory of 2636	3376	csrsll.exe	96
PID 3376 wrote to memory of 2636	3376	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe
"C:\Users\Admin\AppData\Local\Temp\d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2404
- C:\Users\Admin\AppData\Local\Temp\d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe
  "C:\Users\Admin\AppData\Local\Temp\d93fb1434cbed2fa100b45915b14130fd35e888db24abf056a0bea6c9c19f776.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3040
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BQROX.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1932
  - - 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:2688
- - 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:3376
  - - 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:1040
  - - 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:2636

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\BQROX.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
e02e27df5b327b89a7c4c441f3fe774a

SHA1
d024afa44732590ec26db5c566a75045d1d97509

SHA256
8014758e518fe41ec220452763732d8826d1294d9e971b2ebcd060cc43790cc9

SHA512
5c43fd3064fac20f1f7509e5eeedd1905d6368f22d2f05f36c7bc88a73f8de8d06fa7a1fa71c18cab788cc1ebe8b110e93a747ac9312770c2ad06f9c2941ee63

Download Submit
memory/1040-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2404-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/2404-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/2404-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2404-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/2404-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2404-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2636-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2636-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2636-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2636-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2636-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2636-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3040-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3040-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3040-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3040-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3040-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3040-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3376-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3376-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3376-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads