modiloader | 138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34f

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
02-01-2025 07:15

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General

Target

138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe
Size

90KB
MD5

7815869c22bfa34697df3e7f9b839cb0
SHA1

7d7f85cde97f2c92a03a5c8730454d7e69c52fd4
SHA256

138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34f
SHA512

5c1979f337edd0d8492ebfd4488e21394419c6cf0429913c377392f7ff2cd8ac7261b652625835d1e62ab7abeaded6b4ed15f61e8ec23ebe37fb51dafa75c9c8
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDG:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3g

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/1976-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1976-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1976-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1976-62-0x0000000000400000-0x0000000000414000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe

Executes dropped EXE 3 IoCs

pid	Process
3288	csrsll.exe
4712	csrsll.exe
1976	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 1488 set thread context of 212	1488	138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe	83
PID 3288 set thread context of 4712	3288	csrsll.exe	95
PID 3288 set thread context of 1976	3288	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1488-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1488-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/212-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/212-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1488-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/212-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c92-28.dat	upx
behavioral2/memory/212-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3288-39-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3288-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1976-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1976-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1976-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3288-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1976-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1976-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/212-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4712-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1976-62-0x0000000000400000-0x0000000000414000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1488	138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe
212	138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe
3288	csrsll.exe
4712	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 212	1488	138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe	83
PID 1488 wrote to memory of 212	1488	138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe	83
PID 1488 wrote to memory of 212	1488	138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe	83
PID 1488 wrote to memory of 212	1488	138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe	83
PID 1488 wrote to memory of 212	1488	138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe	83
PID 1488 wrote to memory of 212	1488	138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe	83
PID 1488 wrote to memory of 212	1488	138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe	83
PID 1488 wrote to memory of 212	1488	138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe	83
PID 212 wrote to memory of 4008	212	138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe	84
PID 212 wrote to memory of 4008	212	138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe	84
PID 212 wrote to memory of 4008	212	138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe	84
PID 4008 wrote to memory of 2996	4008	cmd.exe	88
PID 4008 wrote to memory of 2996	4008	cmd.exe	88
PID 4008 wrote to memory of 2996	4008	cmd.exe	88
PID 212 wrote to memory of 3288	212	138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe	89
PID 212 wrote to memory of 3288	212	138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe	89
PID 212 wrote to memory of 3288	212	138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe	89
PID 3288 wrote to memory of 4712	3288	csrsll.exe	95
PID 3288 wrote to memory of 4712	3288	csrsll.exe	95
PID 3288 wrote to memory of 4712	3288	csrsll.exe	95
PID 3288 wrote to memory of 4712	3288	csrsll.exe	95
PID 3288 wrote to memory of 4712	3288	csrsll.exe	95
PID 3288 wrote to memory of 4712	3288	csrsll.exe	95
PID 3288 wrote to memory of 4712	3288	csrsll.exe	95
PID 3288 wrote to memory of 4712	3288	csrsll.exe	95
PID 3288 wrote to memory of 1976	3288	csrsll.exe	96
PID 3288 wrote to memory of 1976	3288	csrsll.exe	96
PID 3288 wrote to memory of 1976	3288	csrsll.exe	96
PID 3288 wrote to memory of 1976	3288	csrsll.exe	96
PID 3288 wrote to memory of 1976	3288	csrsll.exe	96
PID 3288 wrote to memory of 1976	3288	csrsll.exe	96
PID 3288 wrote to memory of 1976	3288	csrsll.exe	96
PID 3288 wrote to memory of 1976	3288	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe
"C:\Users\Admin\AppData\Local\Temp\138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1488
- C:\Users\Admin\AppData\Local\Temp\138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe
  "C:\Users\Admin\AppData\Local\Temp\138fc75ce04004f96330c702c4f3f172880b70799e959be2ce88a707ca43c34fN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:212
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DNWUE.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4008
  - - 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:2996
- - 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:3288
  - - 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:4712
  - - 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:1976

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\DNWUE.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
4e46119d59816faa6904a67688f02fc5

SHA1
f2800835ff205746d25c9aede239252e8ba85b58

SHA256
855a9ebc8f7282221f5df793a0a9b5a866badd5d7d9749fc2d066936382bcbcb

SHA512
f2cc28f7a0f0a5f323672f168300a49c6cb9edd31b6542664dd4dd4ebd003c9727791fc00723200f417dd117be04da7ebccc3fd62dac1d0d075dcf2d7f1cc35e

Download Submit
memory/212-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/212-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/212-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/212-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/212-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1488-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1488-6-0x0000000002CA0000-0x0000000002CA2000-memory.dmp

Filesize
8KB

Download
memory/1488-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1488-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1488-4-0x0000000002C80000-0x0000000002C82000-memory.dmp

Filesize
8KB

Download
memory/1488-3-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/1976-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1976-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1976-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1976-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1976-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1976-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3288-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3288-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3288-39-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4712-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads