modiloader | 7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2024 19:21

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General

Target

7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe
Size

90KB
MD5

1f31a0ed5a7d2e3a89961adbb4314990
SHA1

e937b520acbd19531331d3daac3712e7c3042e66
SHA256

7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326
SHA512

6799c3be73cd9c083b74fac9bb503b37b1f97ef90d718e08b1f3d8cf451f4450273566bc23edb6e1b3fa2819d8960a196cdd46684c5a03ac72733afec07a711f
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDF:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3v

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/2552-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2552-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2552-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2552-60-0x0000000000400000-0x0000000000414000-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	7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe

Executes dropped EXE 3 IoCs

pid	Process
4204	csrsll.exe
3388	csrsll.exe
2552	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 880 set thread context of 1588	880	7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe	86
PID 4204 set thread context of 3388	4204	csrsll.exe	97
PID 4204 set thread context of 2552	4204	csrsll.exe	98

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/880-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/880-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1588-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1588-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/880-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1588-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000a000000023bc9-29.dat	upx
behavioral2/memory/1588-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4204-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4204-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2552-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2552-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2552-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2552-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2552-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4204-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1588-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3388-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2552-60-0x0000000000400000-0x0000000000414000-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	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	7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
880	7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe
1588	7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe
4204	csrsll.exe
3388	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 880 wrote to memory of 1588	880	7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe	86
PID 880 wrote to memory of 1588	880	7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe	86
PID 880 wrote to memory of 1588	880	7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe	86
PID 880 wrote to memory of 1588	880	7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe	86
PID 880 wrote to memory of 1588	880	7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe	86
PID 880 wrote to memory of 1588	880	7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe	86
PID 880 wrote to memory of 1588	880	7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe	86
PID 880 wrote to memory of 1588	880	7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe	86
PID 1588 wrote to memory of 2188	1588	7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe	89
PID 1588 wrote to memory of 2188	1588	7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe	89
PID 1588 wrote to memory of 2188	1588	7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe	89
PID 2188 wrote to memory of 3484	2188	cmd.exe	92
PID 2188 wrote to memory of 3484	2188	cmd.exe	92
PID 2188 wrote to memory of 3484	2188	cmd.exe	92
PID 1588 wrote to memory of 4204	1588	7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe	93
PID 1588 wrote to memory of 4204	1588	7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe	93
PID 1588 wrote to memory of 4204	1588	7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe	93
PID 4204 wrote to memory of 3388	4204	csrsll.exe	97
PID 4204 wrote to memory of 3388	4204	csrsll.exe	97
PID 4204 wrote to memory of 3388	4204	csrsll.exe	97
PID 4204 wrote to memory of 3388	4204	csrsll.exe	97
PID 4204 wrote to memory of 3388	4204	csrsll.exe	97
PID 4204 wrote to memory of 3388	4204	csrsll.exe	97
PID 4204 wrote to memory of 3388	4204	csrsll.exe	97
PID 4204 wrote to memory of 3388	4204	csrsll.exe	97
PID 4204 wrote to memory of 2552	4204	csrsll.exe	98
PID 4204 wrote to memory of 2552	4204	csrsll.exe	98
PID 4204 wrote to memory of 2552	4204	csrsll.exe	98
PID 4204 wrote to memory of 2552	4204	csrsll.exe	98
PID 4204 wrote to memory of 2552	4204	csrsll.exe	98
PID 4204 wrote to memory of 2552	4204	csrsll.exe	98
PID 4204 wrote to memory of 2552	4204	csrsll.exe	98
PID 4204 wrote to memory of 2552	4204	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe
"C:\Users\Admin\AppData\Local\Temp\7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:880
- C:\Users\Admin\AppData\Local\Temp\7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe
  "C:\Users\Admin\AppData\Local\Temp\7779d036dd9ab03a9ae30dfeefb8b8ba28a6b3a072bcd2bee379a6b313730326N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1588
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\EIDLW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2188
  - - 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:3484
- - 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:4204
  - - 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:3388
  - - 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:2552

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\EIDLW.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
958bd445146d498e8d92bf517e5d308e

SHA1
a2bb490c8df5b0c7dd64b8041200650b0ae6980c

SHA256
a806dabe6eaf981e9842053717291e43e68094c218f30fd2e09000dc25600a3a

SHA512
f3b53bdcc7c5579b05a7eb0839664f0ecf6ed2336463f7def5ff7cf66004d52287c2654b0720aeef4d7dd3f091ddc5bdac6bd8b1596ebf4861def37b9aa73d42

Download Submit
memory/880-3-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/880-4-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/880-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/880-6-0x0000000002340000-0x0000000002342000-memory.dmp

Filesize
8KB

Download
memory/880-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/880-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1588-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1588-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1588-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1588-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1588-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2552-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2552-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2552-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2552-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2552-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2552-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3388-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4204-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4204-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4204-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads