modiloader | 5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ce

Analysis

max time kernel
119s
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
17-12-2024 21:44

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General

Target

5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe
Size

90KB
MD5

9a255e7717042fbdb8817d5023fb27c0
SHA1

9253c9c041ffd025a23ea19bf46b6b2f1d7a8840
SHA256

5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ce
SHA512

ddf6116692210a3699d65dcbfad2c5c5130d2cacab51d38e25293acbbe81bd1ddaf1b983a1c7364f29f6a298167b57db4bbbbb90f52d85d1d9291adca655e818
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDS:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3s

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/4476-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4476-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4476-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4476-63-0x0000000000400000-0x0000000000414000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe

Executes dropped EXE 3 IoCs

pid	Process
868	csrsll.exe
4348	csrsll.exe
4476	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 316 set thread context of 2756	316	5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe	89
PID 868 set thread context of 4348	868	csrsll.exe	101
PID 868 set thread context of 4476	868	csrsll.exe	102

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/316-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/316-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2756-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2756-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/316-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2756-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b99-30.dat	upx
behavioral2/memory/2756-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/868-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/868-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4476-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4476-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4476-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4476-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/868-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4476-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2756-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4348-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4476-63-0x0000000000400000-0x0000000000414000-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	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	5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe
Token: SeDebugPrivilege	4348	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
316	5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe
2756	5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe
868	csrsll.exe
4348	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 316 wrote to memory of 2756	316	5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe	89
PID 316 wrote to memory of 2756	316	5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe	89
PID 316 wrote to memory of 2756	316	5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe	89
PID 316 wrote to memory of 2756	316	5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe	89
PID 316 wrote to memory of 2756	316	5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe	89
PID 316 wrote to memory of 2756	316	5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe	89
PID 316 wrote to memory of 2756	316	5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe	89
PID 316 wrote to memory of 2756	316	5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe	89
PID 2756 wrote to memory of 464	2756	5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe	90
PID 2756 wrote to memory of 464	2756	5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe	90
PID 2756 wrote to memory of 464	2756	5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe	90
PID 464 wrote to memory of 3524	464	cmd.exe	94
PID 464 wrote to memory of 3524	464	cmd.exe	94
PID 464 wrote to memory of 3524	464	cmd.exe	94
PID 2756 wrote to memory of 868	2756	5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe	95
PID 2756 wrote to memory of 868	2756	5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe	95
PID 2756 wrote to memory of 868	2756	5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe	95
PID 868 wrote to memory of 4348	868	csrsll.exe	101
PID 868 wrote to memory of 4348	868	csrsll.exe	101
PID 868 wrote to memory of 4348	868	csrsll.exe	101
PID 868 wrote to memory of 4348	868	csrsll.exe	101
PID 868 wrote to memory of 4348	868	csrsll.exe	101
PID 868 wrote to memory of 4348	868	csrsll.exe	101
PID 868 wrote to memory of 4348	868	csrsll.exe	101
PID 868 wrote to memory of 4348	868	csrsll.exe	101
PID 868 wrote to memory of 4476	868	csrsll.exe	102
PID 868 wrote to memory of 4476	868	csrsll.exe	102
PID 868 wrote to memory of 4476	868	csrsll.exe	102
PID 868 wrote to memory of 4476	868	csrsll.exe	102
PID 868 wrote to memory of 4476	868	csrsll.exe	102
PID 868 wrote to memory of 4476	868	csrsll.exe	102
PID 868 wrote to memory of 4476	868	csrsll.exe	102
PID 868 wrote to memory of 4476	868	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe
"C:\Users\Admin\AppData\Local\Temp\5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:316
- C:\Users\Admin\AppData\Local\Temp\5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe
  "C:\Users\Admin\AppData\Local\Temp\5384d8ebb0658abde4d81ae7a170ec1825e27967a662de34569c18b3e1e551ceN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2756
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BGWWU.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:464
  - - 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:3524
- - 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:868
  - - 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:4348
  - - 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:4476

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\BGWWU.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
98dcf7f42ff2c3cc4b77fad0e38cdd74

SHA1
fea1617bf2cdb39328871468829b04f5209ae65b

SHA256
6183f39f5c70300e2f50f518f6919315c687e53d046542d160e2266abbd3a7a5

SHA512
8ad315154bdc874603d00d29f707359bbde2f2c4ac20423fe0e3423070be71c98c3dec228e59c31383073ca27d8eabb4113285ae0e0332246c4c59d5f50fc225

Download Submit
memory/316-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/316-3-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/316-4-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/316-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/316-7-0x0000000002340000-0x0000000002342000-memory.dmp

Filesize
8KB

Download
memory/316-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/316-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/868-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/868-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/868-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2756-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2756-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2756-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2756-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2756-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4348-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4476-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4476-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4476-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4476-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4476-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4476-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads