modiloader | 6c1d1a4a4df315cb4c27041e8291479e3e75775d6f635959843518d612aaba0c

Analysis

max time kernel
200s
max time network
218s
platform
windows10-2004_x64
resource
win10v2004-20231020-en
resource tags

arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
submitted
22-10-2023 17:17

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General

Target

NEAS.36dec1751c676cafb65f3e50071a3860.exe
Size

90KB
MD5

36dec1751c676cafb65f3e50071a3860
SHA1

208d40910dfee672140b0e274a9884831168eb95
SHA256

6c1d1a4a4df315cb4c27041e8291479e3e75775d6f635959843518d612aaba0c
SHA512

8e87f271c047e3cb4e56590a1a0ae1f60f72f6c9c40a72a3a7efd79ccd11f1a95332bc981224d322814caa5ecd35a9c66dfb56a7a73e88a8ae6bc0e89d53abe2
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDL:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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 5 IoCs

resource	yara_rule
behavioral2/memory/4744-68-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4744-71-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4744-70-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4744-72-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4744-74-0x0000000000400000-0x0000000000414000-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-1-5-21-568313063-1441237985-1542345083-1000\Control Panel\International\Geo\Nation	NEAS.36dec1751c676cafb65f3e50071a3860.exe

Executes dropped EXE 3 IoCs

pid	Process
3788	csrsll.exe
2096	csrsll.exe
4744	csrsll.exe

UPX packed file 27 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2600-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2600-3-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2600-9-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3840-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2600-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3840-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3840-15-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3840-18-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3840-28-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000022de4-34.dat	upx
behavioral2/files/0x0009000000022de4-40.dat	upx
behavioral2/memory/3788-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0009000000022de4-41.dat	upx
behavioral2/memory/3840-45-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3788-47-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4744-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/files/0x0009000000022de4-51.dat	upx
behavioral2/files/0x0009000000022de4-55.dat	upx
behavioral2/memory/3788-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3840-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4744-66-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2096-67-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4744-68-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4744-71-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4744-70-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4744-72-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4744-74-0x0000000000400000-0x0000000000414000-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-1-5-21-568313063-1441237985-1542345083-1000\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 2600 set thread context of 3840	2600	NEAS.36dec1751c676cafb65f3e50071a3860.exe	86
PID 3788 set thread context of 2096	3788	csrsll.exe	94
PID 3788 set thread context of 4744	3788	csrsll.exe	95

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 51 IoCs

description	pid	Process
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe
Token: SeDebugPrivilege	2096	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2600	NEAS.36dec1751c676cafb65f3e50071a3860.exe
3840	NEAS.36dec1751c676cafb65f3e50071a3860.exe
3788	csrsll.exe
2096	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2600 wrote to memory of 3840	2600	NEAS.36dec1751c676cafb65f3e50071a3860.exe	86
PID 2600 wrote to memory of 3840	2600	NEAS.36dec1751c676cafb65f3e50071a3860.exe	86
PID 2600 wrote to memory of 3840	2600	NEAS.36dec1751c676cafb65f3e50071a3860.exe	86
PID 2600 wrote to memory of 3840	2600	NEAS.36dec1751c676cafb65f3e50071a3860.exe	86
PID 2600 wrote to memory of 3840	2600	NEAS.36dec1751c676cafb65f3e50071a3860.exe	86
PID 2600 wrote to memory of 3840	2600	NEAS.36dec1751c676cafb65f3e50071a3860.exe	86
PID 2600 wrote to memory of 3840	2600	NEAS.36dec1751c676cafb65f3e50071a3860.exe	86
PID 2600 wrote to memory of 3840	2600	NEAS.36dec1751c676cafb65f3e50071a3860.exe	86
PID 3840 wrote to memory of 4716	3840	NEAS.36dec1751c676cafb65f3e50071a3860.exe	87
PID 3840 wrote to memory of 4716	3840	NEAS.36dec1751c676cafb65f3e50071a3860.exe	87
PID 3840 wrote to memory of 4716	3840	NEAS.36dec1751c676cafb65f3e50071a3860.exe	87
PID 4716 wrote to memory of 2892	4716	cmd.exe	90
PID 4716 wrote to memory of 2892	4716	cmd.exe	90
PID 4716 wrote to memory of 2892	4716	cmd.exe	90
PID 3840 wrote to memory of 3788	3840	NEAS.36dec1751c676cafb65f3e50071a3860.exe	92
PID 3840 wrote to memory of 3788	3840	NEAS.36dec1751c676cafb65f3e50071a3860.exe	92
PID 3840 wrote to memory of 3788	3840	NEAS.36dec1751c676cafb65f3e50071a3860.exe	92
PID 3788 wrote to memory of 2096	3788	csrsll.exe	94
PID 3788 wrote to memory of 2096	3788	csrsll.exe	94
PID 3788 wrote to memory of 2096	3788	csrsll.exe	94
PID 3788 wrote to memory of 2096	3788	csrsll.exe	94
PID 3788 wrote to memory of 2096	3788	csrsll.exe	94
PID 3788 wrote to memory of 2096	3788	csrsll.exe	94
PID 3788 wrote to memory of 2096	3788	csrsll.exe	94
PID 3788 wrote to memory of 2096	3788	csrsll.exe	94
PID 3788 wrote to memory of 4744	3788	csrsll.exe	95
PID 3788 wrote to memory of 4744	3788	csrsll.exe	95
PID 3788 wrote to memory of 4744	3788	csrsll.exe	95
PID 3788 wrote to memory of 4744	3788	csrsll.exe	95
PID 3788 wrote to memory of 4744	3788	csrsll.exe	95
PID 3788 wrote to memory of 4744	3788	csrsll.exe	95
PID 3788 wrote to memory of 4744	3788	csrsll.exe	95
PID 3788 wrote to memory of 4744	3788	csrsll.exe	95

C:\Users\Admin\AppData\Local\Temp\NEAS.36dec1751c676cafb65f3e50071a3860.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.36dec1751c676cafb65f3e50071a3860.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2600
- C:\Users\Admin\AppData\Local\Temp\NEAS.36dec1751c676cafb65f3e50071a3860.exe
  "C:\Users\Admin\AppData\Local\Temp\NEAS.36dec1751c676cafb65f3e50071a3860.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3840
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BRNYO.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4716
  - - 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:2892
- - 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:3788
  - - 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:2096
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      PID:4744

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\BRNYO.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
C:\Users\Admin\AppData\Local\Temp\BRNYO.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
9b02f9cfecc735af0441dffa3bf5e945

SHA1
c480a5fe8f18c908d544bcc0937bba9960e40790

SHA256
ff8540ec9abf54010d87d2194fd0354c996f532385c5438cb51fd6aa68a734f8

SHA512
673f43a7a5970d93902becd3c1c513c493406d01e4fa8814431740f013c1610ab9faec1c8ebabb79e7ed28843803d5f181ab08ed02ca4dd7f2605660191c5fae

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

Filesize
90KB

MD5
9b02f9cfecc735af0441dffa3bf5e945

SHA1
c480a5fe8f18c908d544bcc0937bba9960e40790

SHA256
ff8540ec9abf54010d87d2194fd0354c996f532385c5438cb51fd6aa68a734f8

SHA512
673f43a7a5970d93902becd3c1c513c493406d01e4fa8814431740f013c1610ab9faec1c8ebabb79e7ed28843803d5f181ab08ed02ca4dd7f2605660191c5fae

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

Filesize
90KB

MD5
9b02f9cfecc735af0441dffa3bf5e945

SHA1
c480a5fe8f18c908d544bcc0937bba9960e40790

SHA256
ff8540ec9abf54010d87d2194fd0354c996f532385c5438cb51fd6aa68a734f8

SHA512
673f43a7a5970d93902becd3c1c513c493406d01e4fa8814431740f013c1610ab9faec1c8ebabb79e7ed28843803d5f181ab08ed02ca4dd7f2605660191c5fae

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

Filesize
90KB

MD5
9b02f9cfecc735af0441dffa3bf5e945

SHA1
c480a5fe8f18c908d544bcc0937bba9960e40790

SHA256
ff8540ec9abf54010d87d2194fd0354c996f532385c5438cb51fd6aa68a734f8

SHA512
673f43a7a5970d93902becd3c1c513c493406d01e4fa8814431740f013c1610ab9faec1c8ebabb79e7ed28843803d5f181ab08ed02ca4dd7f2605660191c5fae

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

Filesize
90KB

MD5
9b02f9cfecc735af0441dffa3bf5e945

SHA1
c480a5fe8f18c908d544bcc0937bba9960e40790

SHA256
ff8540ec9abf54010d87d2194fd0354c996f532385c5438cb51fd6aa68a734f8

SHA512
673f43a7a5970d93902becd3c1c513c493406d01e4fa8814431740f013c1610ab9faec1c8ebabb79e7ed28843803d5f181ab08ed02ca4dd7f2605660191c5fae

Download Submit
memory/2096-67-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2600-5-0x00000000021C0000-0x00000000021C2000-memory.dmp

Filesize
8KB

Download
memory/2600-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2600-6-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/2600-3-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2600-9-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2600-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2600-8-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download
memory/2600-7-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/3788-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3788-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3788-54-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/3788-53-0x0000000002BD0000-0x0000000002BD2000-memory.dmp

Filesize
8KB

Download
memory/3788-46-0x0000000002A30000-0x0000000002A32000-memory.dmp

Filesize
8KB

Download
memory/3788-48-0x0000000002B40000-0x0000000002B42000-memory.dmp

Filesize
8KB

Download
memory/3788-47-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3788-50-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/3840-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3840-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3840-45-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3840-28-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3840-18-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3840-15-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3840-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3840-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4744-66-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4744-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4744-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4744-71-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4744-70-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4744-72-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4744-74-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads