modiloader | 06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303

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
06/11/2024, 15:14

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General

Target

06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe
Size

90KB
MD5

699d0bab38aeb2b12ab2875a9d3316c0
SHA1

115d2988ee7d57f67a023e89d9bdc6bbae3fd847
SHA256

06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303
SHA512

ff0c035e156366aa12fb94345dc057e7e81ed9e06e2683bcf92a3aac96a17bc69e0cc3f78f00dc3955785a19e98baedfab51a6b7cfc980276653feb2d12c6887
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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/3436-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3436-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3436-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3436-62-0x0000000000400000-0x0000000000414000-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	06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe

Executes dropped EXE 3 IoCs

pid	Process
4276	csrsll.exe
2396	csrsll.exe
3436	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 4832 set thread context of 3320	4832	06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe	90
PID 4276 set thread context of 2396	4276	csrsll.exe	99
PID 4276 set thread context of 3436	4276	csrsll.exe	100

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4832-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4832-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3320-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3320-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4832-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3320-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x001500000002398c-29.dat	upx
behavioral2/memory/4276-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4276-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3320-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4276-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3436-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3436-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3436-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3436-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3436-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3320-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4276-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2396-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3436-62-0x0000000000400000-0x0000000000414000-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	06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4832	06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe
3320	06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe
4276	csrsll.exe
2396	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4832 wrote to memory of 3320	4832	06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe	90
PID 4832 wrote to memory of 3320	4832	06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe	90
PID 4832 wrote to memory of 3320	4832	06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe	90
PID 4832 wrote to memory of 3320	4832	06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe	90
PID 4832 wrote to memory of 3320	4832	06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe	90
PID 4832 wrote to memory of 3320	4832	06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe	90
PID 4832 wrote to memory of 3320	4832	06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe	90
PID 4832 wrote to memory of 3320	4832	06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe	90
PID 3320 wrote to memory of 1520	3320	06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe	92
PID 3320 wrote to memory of 1520	3320	06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe	92
PID 3320 wrote to memory of 1520	3320	06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe	92
PID 1520 wrote to memory of 1784	1520	cmd.exe	95
PID 1520 wrote to memory of 1784	1520	cmd.exe	95
PID 1520 wrote to memory of 1784	1520	cmd.exe	95
PID 3320 wrote to memory of 4276	3320	06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe	96
PID 3320 wrote to memory of 4276	3320	06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe	96
PID 3320 wrote to memory of 4276	3320	06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe	96
PID 4276 wrote to memory of 2396	4276	csrsll.exe	99
PID 4276 wrote to memory of 2396	4276	csrsll.exe	99
PID 4276 wrote to memory of 2396	4276	csrsll.exe	99
PID 4276 wrote to memory of 2396	4276	csrsll.exe	99
PID 4276 wrote to memory of 2396	4276	csrsll.exe	99
PID 4276 wrote to memory of 2396	4276	csrsll.exe	99
PID 4276 wrote to memory of 2396	4276	csrsll.exe	99
PID 4276 wrote to memory of 2396	4276	csrsll.exe	99
PID 4276 wrote to memory of 3436	4276	csrsll.exe	100
PID 4276 wrote to memory of 3436	4276	csrsll.exe	100
PID 4276 wrote to memory of 3436	4276	csrsll.exe	100
PID 4276 wrote to memory of 3436	4276	csrsll.exe	100
PID 4276 wrote to memory of 3436	4276	csrsll.exe	100
PID 4276 wrote to memory of 3436	4276	csrsll.exe	100
PID 4276 wrote to memory of 3436	4276	csrsll.exe	100
PID 4276 wrote to memory of 3436	4276	csrsll.exe	100

C:\Users\Admin\AppData\Local\Temp\06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe
"C:\Users\Admin\AppData\Local\Temp\06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4832
- C:\Users\Admin\AppData\Local\Temp\06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe
  "C:\Users\Admin\AppData\Local\Temp\06396a969801e30b9d60bad9505425a69a85df0747e8c2d470348134e0e7b303N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3320
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WKULH.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1520
  - - 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:1784
- - 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:4276
  - - 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:2396
  - - 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:3436

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\WKULH.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
3feef951ff4fbe6e23744add7a66fe45

SHA1
240a85c6783436cd34a9edb8a9e30f44d1eda48d

SHA256
01419f753b6443c14c4e4ef443e39aa91a8e103113c33fc213b00247313e16d6

SHA512
cbf7bac2d48ca77a5d5cc4d52a177abb0f3cded105a31fff07f97638ce4895fbe420d20fe535b22ad80deb5cb829729ba16eb2d770911ce07d067a1317847317

Download Submit
memory/2396-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3320-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3320-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3320-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3320-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3320-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3436-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3436-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3436-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3436-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3436-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3436-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4276-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4276-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4276-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4276-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4832-6-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/4832-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4832-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4832-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4832-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/4832-5-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads