modiloader | 6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec

Analysis

max time kernel
118s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-12-2024 06:58

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General

Target

6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe
Size

90KB
MD5

c3c2c019abaec32d996322e35b458819
SHA1

9bf9a9fb14feed05180c8421d7af823968b8d7aa
SHA256

6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec
SHA512

597824582e7f38e5e6636164db8cc0de5fed5da58e2d32d567cb32eb2e4e872f48212ba4d041075c2b75650743b1a9d1094bc5deafe15d7dcd00a137c06573a8
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDT:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3x

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/4652-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4652-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4652-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4652-61-0x0000000000400000-0x0000000000414000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe

Executes dropped EXE 3 IoCs

pid	Process
5116	csrsll.exe
4128	csrsll.exe
4652	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-1-5-21-2437139445-1151884604-3026847218-1000\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 3744 set thread context of 2748	3744	6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe	83
PID 5116 set thread context of 4128	5116	csrsll.exe	101
PID 5116 set thread context of 4652	5116	csrsll.exe	102

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3744-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3744-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2748-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2748-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3744-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2748-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023baa-29.dat	upx
behavioral2/memory/2748-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5116-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5116-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4652-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4652-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4652-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4652-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4652-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5116-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2748-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4128-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4652-61-0x0000000000400000-0x0000000000414000-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	6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.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	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3744	6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe
2748	6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe
5116	csrsll.exe
4128	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3744 wrote to memory of 2748	3744	6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe	83
PID 3744 wrote to memory of 2748	3744	6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe	83
PID 3744 wrote to memory of 2748	3744	6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe	83
PID 3744 wrote to memory of 2748	3744	6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe	83
PID 3744 wrote to memory of 2748	3744	6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe	83
PID 3744 wrote to memory of 2748	3744	6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe	83
PID 3744 wrote to memory of 2748	3744	6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe	83
PID 3744 wrote to memory of 2748	3744	6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe	83
PID 2748 wrote to memory of 2932	2748	6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe	90
PID 2748 wrote to memory of 2932	2748	6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe	90
PID 2748 wrote to memory of 2932	2748	6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe	90
PID 2932 wrote to memory of 2256	2932	cmd.exe	94
PID 2932 wrote to memory of 2256	2932	cmd.exe	94
PID 2932 wrote to memory of 2256	2932	cmd.exe	94
PID 2748 wrote to memory of 5116	2748	6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe	95
PID 2748 wrote to memory of 5116	2748	6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe	95
PID 2748 wrote to memory of 5116	2748	6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe	95
PID 5116 wrote to memory of 4128	5116	csrsll.exe	101
PID 5116 wrote to memory of 4128	5116	csrsll.exe	101
PID 5116 wrote to memory of 4128	5116	csrsll.exe	101
PID 5116 wrote to memory of 4128	5116	csrsll.exe	101
PID 5116 wrote to memory of 4128	5116	csrsll.exe	101
PID 5116 wrote to memory of 4128	5116	csrsll.exe	101
PID 5116 wrote to memory of 4128	5116	csrsll.exe	101
PID 5116 wrote to memory of 4128	5116	csrsll.exe	101
PID 5116 wrote to memory of 4652	5116	csrsll.exe	102
PID 5116 wrote to memory of 4652	5116	csrsll.exe	102
PID 5116 wrote to memory of 4652	5116	csrsll.exe	102
PID 5116 wrote to memory of 4652	5116	csrsll.exe	102
PID 5116 wrote to memory of 4652	5116	csrsll.exe	102
PID 5116 wrote to memory of 4652	5116	csrsll.exe	102
PID 5116 wrote to memory of 4652	5116	csrsll.exe	102
PID 5116 wrote to memory of 4652	5116	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe
"C:\Users\Admin\AppData\Local\Temp\6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3744
- C:\Users\Admin\AppData\Local\Temp\6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe
  "C:\Users\Admin\AppData\Local\Temp\6f3a7815f9cae10106026d9f35bd2e1473b7b31980e4d54d33feeebf26cb15ec.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2748
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NEYDN.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2932
  - - 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:2256
- - 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:5116
  - - 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:4128
  - - 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:4652

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\NEYDN.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
34d183516b2f3581d82d7b773dd31371

SHA1
3a6e3c04285ac2572ed69a6fb3c5e27fd629abe3

SHA256
2877f4bdae5c0da4ed5ad77f4e3e95175dc22143587a6be57f1d24f76275c9c4

SHA512
82de77129e72c846789a25f0dc2cf3361547e4b07afc1be6b770d4bdff2da875c7fd7e655dc59fbcfde90d503bb26cf953ea349dcf50634b1d0b8ad0573490b0

Download Submit
memory/2748-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2748-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2748-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2748-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2748-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3744-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3744-6-0x0000000002A90000-0x0000000002A92000-memory.dmp

Filesize
8KB

Download
memory/3744-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3744-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3744-5-0x0000000002A80000-0x0000000002A82000-memory.dmp

Filesize
8KB

Download
memory/3744-3-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/4128-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4652-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4652-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4652-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4652-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4652-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4652-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5116-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5116-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5116-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads