modiloader | 00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d

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
26/11/2024, 19:02

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General

Target

00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe
Size

90KB
MD5

e643c1693eed3df2e29ef23129441f55
SHA1

65d831c36ad48d019bda52146eb922b2d05545f1
SHA256

00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d
SHA512

c76d8dc984049d4445ac94cbe67a9f3c20ac8d89185af3b523e95aabffc0abc558cd85f3ca960addb3f8df7a9d717c84b7a4958a8ce0026502013ca98fa84a1d
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDL:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE39

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/1636-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1636-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1636-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1636-62-0x0000000000400000-0x0000000000414000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe

Executes dropped EXE 3 IoCs

pid	Process
5076	csrsll.exe
1228	csrsll.exe
1636	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-1-5-21-4050598569-1597076380-177084960-1000\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 3380 set thread context of 1056	3380	00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe	87
PID 5076 set thread context of 1228	5076	csrsll.exe	95
PID 5076 set thread context of 1636	5076	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3380-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3380-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1056-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1056-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1056-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3380-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0007000000023ca3-29.dat	upx
behavioral2/memory/1056-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5076-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5076-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1636-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1636-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1636-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1636-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1636-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5076-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1056-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1228-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1636-62-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.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	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe
Token: SeDebugPrivilege	1228	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3380	00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe
1056	00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe
5076	csrsll.exe
1228	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3380 wrote to memory of 1056	3380	00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe	87
PID 3380 wrote to memory of 1056	3380	00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe	87
PID 3380 wrote to memory of 1056	3380	00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe	87
PID 3380 wrote to memory of 1056	3380	00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe	87
PID 3380 wrote to memory of 1056	3380	00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe	87
PID 3380 wrote to memory of 1056	3380	00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe	87
PID 3380 wrote to memory of 1056	3380	00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe	87
PID 3380 wrote to memory of 1056	3380	00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe	87
PID 1056 wrote to memory of 1924	1056	00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe	88
PID 1056 wrote to memory of 1924	1056	00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe	88
PID 1056 wrote to memory of 1924	1056	00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe	88
PID 1924 wrote to memory of 2940	1924	cmd.exe	93
PID 1924 wrote to memory of 2940	1924	cmd.exe	93
PID 1924 wrote to memory of 2940	1924	cmd.exe	93
PID 1056 wrote to memory of 5076	1056	00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe	94
PID 1056 wrote to memory of 5076	1056	00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe	94
PID 1056 wrote to memory of 5076	1056	00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe	94
PID 5076 wrote to memory of 1228	5076	csrsll.exe	95
PID 5076 wrote to memory of 1228	5076	csrsll.exe	95
PID 5076 wrote to memory of 1228	5076	csrsll.exe	95
PID 5076 wrote to memory of 1228	5076	csrsll.exe	95
PID 5076 wrote to memory of 1228	5076	csrsll.exe	95
PID 5076 wrote to memory of 1228	5076	csrsll.exe	95
PID 5076 wrote to memory of 1228	5076	csrsll.exe	95
PID 5076 wrote to memory of 1228	5076	csrsll.exe	95
PID 5076 wrote to memory of 1636	5076	csrsll.exe	96
PID 5076 wrote to memory of 1636	5076	csrsll.exe	96
PID 5076 wrote to memory of 1636	5076	csrsll.exe	96
PID 5076 wrote to memory of 1636	5076	csrsll.exe	96
PID 5076 wrote to memory of 1636	5076	csrsll.exe	96
PID 5076 wrote to memory of 1636	5076	csrsll.exe	96
PID 5076 wrote to memory of 1636	5076	csrsll.exe	96
PID 5076 wrote to memory of 1636	5076	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe
"C:\Users\Admin\AppData\Local\Temp\00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3380
- C:\Users\Admin\AppData\Local\Temp\00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe
  "C:\Users\Admin\AppData\Local\Temp\00073c56d94244515d215afe4df3d7844bae78c9c7c043d1a6d9533804d5948d.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1056
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\TLAUR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1924
  - - 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:2940
- - 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:5076
  - - 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:1228
  - - 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:1636

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\TLAUR.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
c0745ad33eafc311b1534553f485a65a

SHA1
b1c549acd4ba97420c7ad456a9c152d083fa67d5

SHA256
004a7d33de4e230389cff6dd770b98ba8c132e8b1c0f707145e0a3f185d6be04

SHA512
a9720f09d71f5b21c7b43bc025df381aba10774ecd5eac61f2dae3e9810652bf4d6a3dba211e5ba43edaa73acf4ffe083f02b116fd07ec27b2958a0ecfa62e9a

Download Submit
memory/1056-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1056-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1056-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1056-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1056-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1228-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1636-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1636-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1636-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1636-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1636-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1636-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3380-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3380-3-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/3380-4-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/3380-6-0x0000000002340000-0x0000000002342000-memory.dmp

Filesize
8KB

Download
memory/3380-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3380-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5076-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5076-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5076-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads