modiloader | 7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599

Analysis

max time kernel
119s
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
26/11/2024, 15:10

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General

Target

7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe
Size

90KB
MD5

d5bbf30bc1460eac44b2fb33cc317070
SHA1

ff7bb21e87fc7ad975a83c0372ff3c8ce4b6ca92
SHA256

7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599
SHA512

68079a5c7da8b2345ea6316c66a937d88211e65bb7aea14091f8afb12948d17a23f4cfe3a8dc4ef97b6ac3822430c2847c9c8cab85e90ccc37e94fe1434525b7
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/2164-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2164-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2164-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2164-63-0x0000000000400000-0x0000000000414000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe

Executes dropped EXE 3 IoCs

pid	Process
3124	csrsll.exe
388	csrsll.exe
2164	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-1-5-21-1045960512-3948844814-3059691613-1000\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 1048 set thread context of 4936	1048	7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe	88
PID 3124 set thread context of 388	3124	csrsll.exe	101
PID 3124 set thread context of 2164	3124	csrsll.exe	102

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1048-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1048-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4936-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4936-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1048-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4936-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c8b-28.dat	upx
behavioral2/memory/3124-35-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4936-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3124-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3124-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2164-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2164-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2164-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2164-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2164-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3124-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4936-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/388-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2164-63-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe
Token: SeDebugPrivilege	388	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1048	7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe
4936	7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe
3124	csrsll.exe
388	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1048 wrote to memory of 4936	1048	7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe	88
PID 1048 wrote to memory of 4936	1048	7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe	88
PID 1048 wrote to memory of 4936	1048	7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe	88
PID 1048 wrote to memory of 4936	1048	7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe	88
PID 1048 wrote to memory of 4936	1048	7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe	88
PID 1048 wrote to memory of 4936	1048	7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe	88
PID 1048 wrote to memory of 4936	1048	7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe	88
PID 1048 wrote to memory of 4936	1048	7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe	88
PID 4936 wrote to memory of 1228	4936	7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe	91
PID 4936 wrote to memory of 1228	4936	7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe	91
PID 4936 wrote to memory of 1228	4936	7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe	91
PID 1228 wrote to memory of 1940	1228	cmd.exe	95
PID 1228 wrote to memory of 1940	1228	cmd.exe	95
PID 1228 wrote to memory of 1940	1228	cmd.exe	95
PID 4936 wrote to memory of 3124	4936	7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe	96
PID 4936 wrote to memory of 3124	4936	7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe	96
PID 4936 wrote to memory of 3124	4936	7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe	96
PID 3124 wrote to memory of 388	3124	csrsll.exe	101
PID 3124 wrote to memory of 388	3124	csrsll.exe	101
PID 3124 wrote to memory of 388	3124	csrsll.exe	101
PID 3124 wrote to memory of 388	3124	csrsll.exe	101
PID 3124 wrote to memory of 388	3124	csrsll.exe	101
PID 3124 wrote to memory of 388	3124	csrsll.exe	101
PID 3124 wrote to memory of 388	3124	csrsll.exe	101
PID 3124 wrote to memory of 388	3124	csrsll.exe	101
PID 3124 wrote to memory of 2164	3124	csrsll.exe	102
PID 3124 wrote to memory of 2164	3124	csrsll.exe	102
PID 3124 wrote to memory of 2164	3124	csrsll.exe	102
PID 3124 wrote to memory of 2164	3124	csrsll.exe	102
PID 3124 wrote to memory of 2164	3124	csrsll.exe	102
PID 3124 wrote to memory of 2164	3124	csrsll.exe	102
PID 3124 wrote to memory of 2164	3124	csrsll.exe	102
PID 3124 wrote to memory of 2164	3124	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe
"C:\Users\Admin\AppData\Local\Temp\7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1048
- C:\Users\Admin\AppData\Local\Temp\7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe
  "C:\Users\Admin\AppData\Local\Temp\7e21b79760b7d774fae5557f1bf6e2365dfc3d1d77002cf02b452059ca314599N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4936
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\TVHLQ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1228
  - - 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:1940
- - 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:3124
  - - 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:388
  - - 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:2164

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\TVHLQ.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
e33f6ca3a46c883bd877bb774c6369c0

SHA1
eb2225dae8f4f65d3135d20e80e21543c6787b97

SHA256
878dd995f10272ced845a45a8d9c7f8195570827954e26e4e829ebfd361b0bc8

SHA512
3e4e56354cd74fa01a51c20a220cc0928fc0d649e35405686ec5cb229eddfe01697bd89783c737ef38c4b021dd3758100cb77ee0807213200069718ca4b6ce91

Download Submit
memory/388-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1048-5-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/1048-3-0x0000000002B40000-0x0000000002B42000-memory.dmp

Filesize
8KB

Download
memory/1048-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1048-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1048-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1048-6-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/2164-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2164-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2164-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2164-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2164-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2164-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3124-35-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3124-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3124-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3124-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4936-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4936-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4936-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4936-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4936-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads