modiloader | aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352

Analysis

max time kernel
139s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
05/07/2024, 01:23

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General

Target
aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe
Size 90KB
Sample240705-br6v9ayfql
SHA256 aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352
MD5 1416969658cfc87ec2c0a0df0fc81eed
SHA1 191a0e1899043c6812ebed34cadeea448373acdd
SHA512 40a1e2ca07953c078918ed3cfff63e3809f1f153bf96e7306abb737738dfb108dc0de5a76e59a6e03843ce7301cc7f996bc8845d76b6187a3ad6eecc4e34b404
SSDEEP 1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

modiloader 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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/4668-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4668-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4668-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4668-59-0x0000000000400000-0x0000000000414000-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-1-5-21-771719357-2485960699-3367710044-1000\Control Panel\International\Geo\Nation	aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe

Executes dropped EXE 3 IoCs

pid	Process
2880	csrsll.exe
4240	csrsll.exe
4668	csrsll.exe

UPX packed file 16 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3564-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4708-3-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4708-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4708-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3564-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023413-28.dat	upx
behavioral2/memory/2880-38-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2880-46-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4668-43-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4668-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4668-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4668-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4668-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4708-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4240-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4668-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-771719357-2485960699-3367710044-1000\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 3564 set thread context of 4708	3564	aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe	83
PID 2880 set thread context of 4240	2880	csrsll.exe	89
PID 2880 set thread context of 4668	2880	csrsll.exe	90

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe
Token: SeDebugPrivilege	4240	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3564	aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe
4708	aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe
2880	csrsll.exe
4240	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3564 wrote to memory of 4708	3564	aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe	83
PID 3564 wrote to memory of 4708	3564	aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe	83
PID 3564 wrote to memory of 4708	3564	aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe	83
PID 3564 wrote to memory of 4708	3564	aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe	83
PID 3564 wrote to memory of 4708	3564	aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe	83
PID 3564 wrote to memory of 4708	3564	aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe	83
PID 3564 wrote to memory of 4708	3564	aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe	83
PID 3564 wrote to memory of 4708	3564	aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe	83
PID 4708 wrote to memory of 3096	4708	aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe	84
PID 4708 wrote to memory of 3096	4708	aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe	84
PID 4708 wrote to memory of 3096	4708	aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe	84
PID 3096 wrote to memory of 4068	3096	cmd.exe	87
PID 3096 wrote to memory of 4068	3096	cmd.exe	87
PID 3096 wrote to memory of 4068	3096	cmd.exe	87
PID 4708 wrote to memory of 2880	4708	aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe	88
PID 4708 wrote to memory of 2880	4708	aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe	88
PID 4708 wrote to memory of 2880	4708	aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe	88
PID 2880 wrote to memory of 4240	2880	csrsll.exe	89
PID 2880 wrote to memory of 4240	2880	csrsll.exe	89
PID 2880 wrote to memory of 4240	2880	csrsll.exe	89
PID 2880 wrote to memory of 4240	2880	csrsll.exe	89
PID 2880 wrote to memory of 4240	2880	csrsll.exe	89
PID 2880 wrote to memory of 4240	2880	csrsll.exe	89
PID 2880 wrote to memory of 4240	2880	csrsll.exe	89
PID 2880 wrote to memory of 4240	2880	csrsll.exe	89
PID 2880 wrote to memory of 4668	2880	csrsll.exe	90
PID 2880 wrote to memory of 4668	2880	csrsll.exe	90
PID 2880 wrote to memory of 4668	2880	csrsll.exe	90
PID 2880 wrote to memory of 4668	2880	csrsll.exe	90
PID 2880 wrote to memory of 4668	2880	csrsll.exe	90
PID 2880 wrote to memory of 4668	2880	csrsll.exe	90
PID 2880 wrote to memory of 4668	2880	csrsll.exe	90
PID 2880 wrote to memory of 4668	2880	csrsll.exe	90

C:\Users\Admin\AppData\Local\Temp\aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe
"C:\Users\Admin\AppData\Local\Temp\aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3564
- C:\Users\Admin\AppData\Local\Temp\aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe
  "C:\Users\Admin\AppData\Local\Temp\aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4708
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\TRQUH.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3096
  - - 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
      PID:4068
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2880
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:4240
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      PID:4668

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

TRQUH.txt

Path C:\Users\Admin\AppData\Local\Temp\TRQUH.txt
Size 145B
SHA256 08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff
MD5 4eb61ec7816c34ec8c125acadc57ec1b
SHA1 b0015cc865c0bb1a027be663027d3829401a31cc
SHA512 f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1
MD5 SHA1 SHA512

Submit Download

csrsll.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
Size 90KB
SHA256 aa04994e49d63c11251be1785d0119c4693cdaedc87ee69cd877b0535594f352
MD5 1416969658cfc87ec2c0a0df0fc81eed
SHA1 191a0e1899043c6812ebed34cadeea448373acdd
SHA512 40a1e2ca07953c078918ed3cfff63e3809f1f153bf96e7306abb737738dfb108dc0de5a76e59a6e03843ce7301cc7f996bc8845d76b6187a3ad6eecc4e34b404
SSDEEP 1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2880-46-0x0000000000400000-0x0000000000453000-memory.dmp

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memory/2880-38-0x0000000000400000-0x0000000000453000-memory.dmp

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memory/3564-6-0x0000000002310000-0x0000000002312000-memory.dmp

Download

memory/3564-0-0x0000000000400000-0x0000000000453000-memory.dmp

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memory/3564-12-0x0000000000400000-0x0000000000453000-memory.dmp

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memory/3564-7-0x0000000002320000-0x0000000002322000-memory.dmp

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memory/3564-8-0x0000000002340000-0x0000000002342000-memory.dmp

Download

memory/4240-58-0x0000000000400000-0x000000000040B000-memory.dmp

Download

memory/4668-51-0x0000000000400000-0x0000000000414000-memory.dmp

Download

memory/4668-43-0x0000000000400000-0x0000000000414000-memory.dmp

Download

memory/4668-52-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/4668-54-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/4668-50-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/4668-59-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/4708-3-0x0000000000400000-0x000000000040B000-memory.dmp

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memory/4708-9-0x0000000000400000-0x000000000040B000-memory.dmp

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memory/4708-55-0x0000000000410000-0x00000000004D9000-memory.dmp

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memory/4708-57-0x0000000000400000-0x000000000040B000-memory.dmp

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memory/4708-10-0x0000000000400000-0x000000000040B000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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