modiloader | 8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3

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
18-12-2024 23:49

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General

Target

8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe
Size

90KB
MD5

39e9b585f80b0214d26d7b39e8ce4936
SHA1

d1adad5524e8c8956563a13c6defdad537a9040d
SHA256

8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3
SHA512

4c22ccda6261245f6e3379ac9ab50942c627e8ab1d026322593d6763428167beeacda1192106649a2b5f09d83515e546f2d86f98f8caffcb67e90bd236f8a0b3
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/3628-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3628-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3628-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3628-64-0x0000000000400000-0x0000000000414000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe

Executes dropped EXE 3 IoCs

pid	Process
3424	csrsll.exe
2956	csrsll.exe
3628	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-1-5-21-2878641211-696417878-3864914810-1000\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 540 set thread context of 2568	540	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	83
PID 3424 set thread context of 2956	3424	csrsll.exe	97
PID 3424 set thread context of 3628	3424	csrsll.exe	98

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral2/memory/540-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2568-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2568-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2568-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/540-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2568-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/540-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023c9b-29.dat	upx
behavioral2/memory/3424-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2568-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3424-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3628-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3628-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3424-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2568-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3628-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3628-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3628-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3424-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2956-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3628-64-0x0000000000400000-0x0000000000414000-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	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.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	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe
Token: SeDebugPrivilege	2956	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
540	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe
2568	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe
3424	csrsll.exe
2956	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 540 wrote to memory of 2568	540	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	83
PID 540 wrote to memory of 2568	540	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	83
PID 540 wrote to memory of 2568	540	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	83
PID 540 wrote to memory of 2568	540	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	83
PID 540 wrote to memory of 2568	540	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	83
PID 540 wrote to memory of 2568	540	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	83
PID 540 wrote to memory of 2568	540	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	83
PID 540 wrote to memory of 2568	540	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	83
PID 2568 wrote to memory of 1060	2568	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	84
PID 2568 wrote to memory of 1060	2568	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	84
PID 2568 wrote to memory of 1060	2568	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	84
PID 1060 wrote to memory of 968	1060	cmd.exe	88
PID 1060 wrote to memory of 968	1060	cmd.exe	88
PID 1060 wrote to memory of 968	1060	cmd.exe	88
PID 2568 wrote to memory of 3424	2568	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	89
PID 2568 wrote to memory of 3424	2568	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	89
PID 2568 wrote to memory of 3424	2568	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	89
PID 3424 wrote to memory of 2956	3424	csrsll.exe	97
PID 3424 wrote to memory of 2956	3424	csrsll.exe	97
PID 3424 wrote to memory of 2956	3424	csrsll.exe	97
PID 3424 wrote to memory of 2956	3424	csrsll.exe	97
PID 3424 wrote to memory of 2956	3424	csrsll.exe	97
PID 3424 wrote to memory of 2956	3424	csrsll.exe	97
PID 3424 wrote to memory of 2956	3424	csrsll.exe	97
PID 3424 wrote to memory of 2956	3424	csrsll.exe	97
PID 3424 wrote to memory of 3628	3424	csrsll.exe	98
PID 3424 wrote to memory of 3628	3424	csrsll.exe	98
PID 3424 wrote to memory of 3628	3424	csrsll.exe	98
PID 3424 wrote to memory of 3628	3424	csrsll.exe	98
PID 3424 wrote to memory of 3628	3424	csrsll.exe	98
PID 3424 wrote to memory of 3628	3424	csrsll.exe	98
PID 3424 wrote to memory of 3628	3424	csrsll.exe	98
PID 3424 wrote to memory of 3628	3424	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe
"C:\Users\Admin\AppData\Local\Temp\8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:540
- C:\Users\Admin\AppData\Local\Temp\8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe
  "C:\Users\Admin\AppData\Local\Temp\8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2568
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KGEUS.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1060
  - - 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:968
- - 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:3424
  - - 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:2956
  - - 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:3628

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\KGEUS.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
dbb116981cb00866c5624303933f36c9

SHA1
07e3c240ffe5801ce82ae0df8a1877b38edef381

SHA256
96db4f6b8949f8449d9c4cbc366c847f8f6a454640efdbba54e191cde1c01553

SHA512
7f2a459ebb4a61ed06c0518be9d27d34e63bb7e10b4c08907d6b1d12af0d1f4a54be6627491a9f7219eed11317f6e9dc7f98f7652368c54efc128b8e3beb2525

Download Submit
memory/540-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/540-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/540-4-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/540-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/540-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/540-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2568-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2568-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2568-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2568-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2568-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2568-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2568-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2956-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3424-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3424-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3424-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3424-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3628-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3628-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3628-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3628-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3628-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3628-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads