modiloader | 101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-11-2024 19:48

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General

Target

101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe
Size

90KB
MD5

718f54b861f63d41368742a197fd6d22
SHA1

849cb5eb8086ff09bb71591c2fc9559a18c15dde
SHA256

101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419
SHA512

7a5e31e5d6f97cbde906ae60b487e5a5c257904aa2f14f0d02e4b81b26ad07f3ddd26c900fdb12eb6f3861b3cf8ed41bfcbdbf70999d48426b829dee26d40f3b
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDV:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3H

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/1756-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1756-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1756-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1756-62-0x0000000000400000-0x0000000000414000-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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe

Executes dropped EXE 3 IoCs

pid	Process
1144	csrsll.exe
404	csrsll.exe
1756	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-1-5-21-2045521122-590294423-3465680274-1000\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 5048 set thread context of 2148	5048	101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe	90
PID 1144 set thread context of 404	1144	csrsll.exe	99
PID 1144 set thread context of 1756	1144	csrsll.exe	100

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5048-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5048-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2148-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2148-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2148-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5048-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0013000000023ba7-29.dat	upx
behavioral2/memory/2148-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1144-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1144-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1756-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1756-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1756-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1144-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1756-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1756-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2148-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/404-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1756-62-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe
Token: SeDebugPrivilege	404	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
5048	101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe
2148	101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe
1144	csrsll.exe
404	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 5048 wrote to memory of 2148	5048	101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe	90
PID 5048 wrote to memory of 2148	5048	101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe	90
PID 5048 wrote to memory of 2148	5048	101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe	90
PID 5048 wrote to memory of 2148	5048	101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe	90
PID 5048 wrote to memory of 2148	5048	101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe	90
PID 5048 wrote to memory of 2148	5048	101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe	90
PID 5048 wrote to memory of 2148	5048	101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe	90
PID 5048 wrote to memory of 2148	5048	101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe	90
PID 2148 wrote to memory of 4660	2148	101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe	94
PID 2148 wrote to memory of 4660	2148	101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe	94
PID 2148 wrote to memory of 4660	2148	101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe	94
PID 4660 wrote to memory of 4692	4660	cmd.exe	97
PID 4660 wrote to memory of 4692	4660	cmd.exe	97
PID 4660 wrote to memory of 4692	4660	cmd.exe	97
PID 2148 wrote to memory of 1144	2148	101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe	98
PID 2148 wrote to memory of 1144	2148	101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe	98
PID 2148 wrote to memory of 1144	2148	101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe	98
PID 1144 wrote to memory of 404	1144	csrsll.exe	99
PID 1144 wrote to memory of 404	1144	csrsll.exe	99
PID 1144 wrote to memory of 404	1144	csrsll.exe	99
PID 1144 wrote to memory of 404	1144	csrsll.exe	99
PID 1144 wrote to memory of 404	1144	csrsll.exe	99
PID 1144 wrote to memory of 404	1144	csrsll.exe	99
PID 1144 wrote to memory of 404	1144	csrsll.exe	99
PID 1144 wrote to memory of 404	1144	csrsll.exe	99
PID 1144 wrote to memory of 1756	1144	csrsll.exe	100
PID 1144 wrote to memory of 1756	1144	csrsll.exe	100
PID 1144 wrote to memory of 1756	1144	csrsll.exe	100
PID 1144 wrote to memory of 1756	1144	csrsll.exe	100
PID 1144 wrote to memory of 1756	1144	csrsll.exe	100
PID 1144 wrote to memory of 1756	1144	csrsll.exe	100
PID 1144 wrote to memory of 1756	1144	csrsll.exe	100
PID 1144 wrote to memory of 1756	1144	csrsll.exe	100

C:\Users\Admin\AppData\Local\Temp\101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe
"C:\Users\Admin\AppData\Local\Temp\101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5048
- C:\Users\Admin\AppData\Local\Temp\101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe
  "C:\Users\Admin\AppData\Local\Temp\101595ccb9c84f03b395b7c44d9955a3478909f98ee597f31c30135647722419.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2148
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BXWAN.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4660
  - - 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:4692
- - 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:1144
  - - 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:404
  - - 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:1756

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\BXWAN.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
a420ba11d20e4aa297e610dbf09a31f3

SHA1
6cf7233ea760fade3899a99240d3d29add54e1d4

SHA256
a1e6ecef59df7639fd4e2f5ca2a1724a56a51f26d6e84e227683bf09e600f215

SHA512
137ea4c58c6807c789bd7711d03a7d8d4f48511707c97d640f5286c6fd4a392632657cbe4c0c71f067265ada4024f53be6dcd63ff7ef74a3e3e2a07d3036ff65

Download Submit
memory/404-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1144-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1144-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1144-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1756-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1756-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1756-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1756-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1756-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1756-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2148-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2148-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2148-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2148-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2148-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2148-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/5048-5-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/5048-6-0x0000000002340000-0x0000000002342000-memory.dmp

Filesize
8KB

Download
memory/5048-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5048-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5048-3-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/5048-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads