modiloader | 79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972

Analysis

max time kernel
149s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29/11/2024, 00:25

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General

Target

79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe
Size

90KB
MD5

577c72e9f9ad2c78ff0121612af50ffc
SHA1

fc2d2632700a950ffa1273da7b3823d87507438b
SHA256

79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972
SHA512

2406fbad94992373c985082e32c67c932ec59dda491a67cbc55bca075683131a9482623266ac3ae8e8142e1529b89f8dec8b793de2de6622c64005e97acd5aaf
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDj:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3p

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/4268-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4268-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4268-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4268-61-0x0000000000400000-0x0000000000414000-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	79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe

Executes dropped EXE 3 IoCs

pid	Process
4228	csrsll.exe
2988	csrsll.exe
4268	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 920 set thread context of 1824	920	79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe	91
PID 4228 set thread context of 2988	4228	csrsll.exe	100
PID 4228 set thread context of 4268	4228	csrsll.exe	101

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/920-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/920-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1824-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1824-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/920-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1824-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000c000000023bb0-29.dat	upx
behavioral2/memory/1824-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4228-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4228-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4268-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4268-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4268-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4228-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4268-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4268-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1824-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2988-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4268-61-0x0000000000400000-0x0000000000414000-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	79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe
Token: SeDebugPrivilege	2988	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
920	79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe
1824	79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe
4228	csrsll.exe
2988	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 920 wrote to memory of 1824	920	79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe	91
PID 920 wrote to memory of 1824	920	79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe	91
PID 920 wrote to memory of 1824	920	79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe	91
PID 920 wrote to memory of 1824	920	79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe	91
PID 920 wrote to memory of 1824	920	79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe	91
PID 920 wrote to memory of 1824	920	79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe	91
PID 920 wrote to memory of 1824	920	79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe	91
PID 920 wrote to memory of 1824	920	79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe	91
PID 1824 wrote to memory of 232	1824	79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe	95
PID 1824 wrote to memory of 232	1824	79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe	95
PID 1824 wrote to memory of 232	1824	79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe	95
PID 232 wrote to memory of 4912	232	cmd.exe	98
PID 232 wrote to memory of 4912	232	cmd.exe	98
PID 232 wrote to memory of 4912	232	cmd.exe	98
PID 1824 wrote to memory of 4228	1824	79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe	99
PID 1824 wrote to memory of 4228	1824	79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe	99
PID 1824 wrote to memory of 4228	1824	79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe	99
PID 4228 wrote to memory of 2988	4228	csrsll.exe	100
PID 4228 wrote to memory of 2988	4228	csrsll.exe	100
PID 4228 wrote to memory of 2988	4228	csrsll.exe	100
PID 4228 wrote to memory of 2988	4228	csrsll.exe	100
PID 4228 wrote to memory of 2988	4228	csrsll.exe	100
PID 4228 wrote to memory of 2988	4228	csrsll.exe	100
PID 4228 wrote to memory of 2988	4228	csrsll.exe	100
PID 4228 wrote to memory of 2988	4228	csrsll.exe	100
PID 4228 wrote to memory of 4268	4228	csrsll.exe	101
PID 4228 wrote to memory of 4268	4228	csrsll.exe	101
PID 4228 wrote to memory of 4268	4228	csrsll.exe	101
PID 4228 wrote to memory of 4268	4228	csrsll.exe	101
PID 4228 wrote to memory of 4268	4228	csrsll.exe	101
PID 4228 wrote to memory of 4268	4228	csrsll.exe	101
PID 4228 wrote to memory of 4268	4228	csrsll.exe	101
PID 4228 wrote to memory of 4268	4228	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe
"C:\Users\Admin\AppData\Local\Temp\79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:920
- C:\Users\Admin\AppData\Local\Temp\79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe
  "C:\Users\Admin\AppData\Local\Temp\79eb97c9f311255af04954c6a59f87ee6cd065a66c6c9e8ddfb09afe052e6972.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1824
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WBUYT.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:232
  - - 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:4912
- - 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:4228
  - - 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:2988
  - - 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:4268

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\WBUYT.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
5cc004d73483f18d8249aa2780eaebfd

SHA1
58c077bf6a0d0f99d243dd2d27eaaa88df5d4171

SHA256
902d8864d553dbcfa954eeb8087bbd591a0518b44e822047700284d828609e38

SHA512
3962208cb2b85686e6e19f5121e761245581ed76f6d1d8590fba66add1d639842452d6aad30d3f79f9c3b5529a97836c5a517b9e95443e2b8278854f18e8426e

Download Submit
memory/920-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/920-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/920-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/920-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/920-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/920-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1824-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1824-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1824-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1824-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1824-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2988-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4228-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4228-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4228-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4268-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4268-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4268-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4268-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4268-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4268-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads